William Sellers & Co. - Assigned Patents

Manufacturers Index - William Sellers & Co.

William Sellers & Co.
Philadelphia, PA, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

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Patent Number	Date	Title	Name	City	Description
6,464	May. 22, 1849	Improvement in mill-shafting	Edward Bancroft	Philadelphia, PA	Power transmission machinery was an important early product line for Wm. Sellers & Co. This patent provides adjustments of the shaft hanger and has an integrated oil-catcher.
6,780	Oct. 09, 1849	Hanging shafts in mills	Edward Bancroft	Philadelphia, PA	This patent marks an important early product line for Wm. Sellers & Co., i.e., power transmission machinery. This particular patent provides easy adjustments of the shaft hanger for alignment and for bearing tightness.
10,491	Feb. 07, 1854	Improvement in Turning Lathes	Edward Bancroft	Philadelphia, PA
		Improvement in Turning Lathes	William Sellers	Philadelphia, PA
17,236	May. 05, 1857	Improvement in couplings for shafting	Coleman Sellers	Philadelphia, PA	This patent was granted an extension by Act of Congress.
		Improvement in couplings for shafting	William Sellers	Philadelphia, PA
RE463	May. 12, 1857	Improvement in hanging shafts in mills	Edward Bancroft	Philadelphia, PA	The inventor was deceased by the time it was reissued; his executor was Joseph Bancroft. This shaft hanger puts the journal box within a spherical housing that allows it to automatically align to the shaft.
17,641	Jun. 23, 1857	Boring and Drilling	William Sellers	Philadelphia, PA	Abstract: The object of my improvement is to obtain greater solidity to the revolving plate, upon which the work to be operated upon is bolted, and to so arrange the machine as to make it complete in itself, and not be dependent upon stone or brick foundations for support to the spindle of the revolving plate, as heretofore necessary in all large machines. Claim: Revolving the faceplate of boring or turning mills in a support, as near as convenient to the periphery thereof.
FR-36,512	May. 08, 1858	Feed injector for steam engines	Henri Giffard	Paris, France	This is the very famous Giffard injector, which had no moving parts and caused quite a furor because its operation seemed to violate the laws of thermodynamics. Giffard had derived its design from first principles. Others had independently discovered the basic idea but their injectors were difficult to get started. Giffard's invention includes a small overflow reservoir which solved the startup problem, and customer tests, including on steam locomotives, quickly demonstrated the superior performance of Giffard's injector. It was licensed to others, including Wm. Sellers in the US. See also US patent 27,979 and British patent 186,402,789.
27,979	Apr. 24, 1860	Improved feed-water apparatus for steam-boilers	Henry Giffard	Paris, France	An 1860 catalog for the Tredegar Iron Works of Richmond, Va., has a page on "Giffard's patent self-acting water injector for feeding boilers. Made by William Sellers & Co., sole manufacturers and licensees..."
33,283	Sep. 10, 1861	Improvement in mode of transmitting motion	Coleman Sellers	Philadelphia, PA	This friction-gearing mechanism uses a series of friction discs where every other disc actually consists of a pair of discs that are stacked with a slight space between) to allow the adjacent disc(s) to pass partially in between, and the surfaces of the discs are angled to allow a point contact between adjacent discs. Variable speed is obtained by varying the spacing of the stacked discs, which varies the radial location of the contact point and hence varies the gearing ratio. This relatively complex arrangement is claimed to avoid side-strain on the shaft journals. The specification claims that this mechanism is suitable for "all forms of machines" and does not give even one specific example. It is not known if the assignee company ever used this invention.
36,113	Aug. 05, 1862	Improvement in Planing Metal Machines	Wm. Sellers	Philadelphia, PA	Abstract: The object of my invention is, first, to simplify the construction of planing-machines for metal, second; to provide a more thorough system of bracing the bed between the uprights; third, to impart a smooth and uniform motion to the table upon which is placed the metal to be planed; and, fourth, to place the pulley-shaft so that its axis may be parallel with the line of motion of the table, thus enabling these machines to be placed parallel to lathes and permitting a better arrangement of workshops. In all the forms of planers in common use there are motions in common, the principal one of which is the reciprocating motion of the table, and arrangements for lengthening or short- citing its stroke. They are all arranged so that the variation of length of stroke can be combined with the adjustment of the general position of the table under the cutting-tool, and the reciprocating motion to the table is usually accomplished in one of three ways, viz: by a chain passing several times around a drum to which it is securely fastened, and having its ends attached to opposite ends of the table, the rotation of the drum giving a rectilinear motion to the table, which will be made in either direction as the motion of the drum is reversed; second, by a screw having its nut attached to the table, the revolution of the screw in either direction producing the desired motion in the table; and, third, the rack-and-pinion motion, in which the rack is attached to the under side of the table, the rotation of the pinion in either direction causing a corresponding movement to the table. This last is probably the one in most common use, and it is this form which my invention is intended to improve. The nature of my invention consists in furnishing the table with a rack, and in operating this rack, not by the ordinary spur-gearing, but by a peculiar form of spiral gearing, which enables the driving-shaft to cross the bed diagonally passing out in a position near enough to the upright to enable the driving-belts to be within reach of the operator. Claim: The use of cogged gearing for planing-machines wherein one of the series of cogs has its contact-surfaces formed by straight lines in the direction of its width, while the other series have their contact-surfaces arranged spirally about an axis which is placed at an angle to the line of motion of the first series.
36,112	Aug. 05, 1862	Improvement in boring-mills for metal	William Sellers	Philadelphia, PA
39,313	Jul. 21, 1863	Improvement in the Giffard injector	William Sellers	Philadelphia, PA	Wm. Sellers & Co. was the exclusive US licensee of "Giffard's patent self-acting water injector for feeding boilers." This patent provides improvements on Giffard's patent 27,979, to improve the packing between the steam and water chambers, and to reduce size and weight of the injector.
42,797	May. 17, 1864	Improvement in Machines for Planing Iron	William Sellers	Philadelphia, PA	The objects of my invention are, first, to effect the lifting of the tool from the work on the back-stroke of the planer in any position of the slide-rest; second, to provide a thorough protection to the wearing-surface of the slides from the chips or dirt incidental to the working of the machine; third, to insure a constant and uniform lubrication of the slides without undue loss of oil. All planing-machines for metal of improved construction are so arranged as to be able to adjust the feed for planing horizontal, vertical, or angular surfaces, and such planers are advertised as having positive geared feeds self-acting in all directions. The horizontal feed is in every case obtained from the motion of the saddle on the cross head, while the vertical and all the angular feeds are obtained from the slide-rest upon the saddle, which may be set vertically or have its line of motion adjusted to any angle with the cross-head. This, of course, necessitates the turning of a portion of the saddle on a center, and through this center the power to operate the downfeed is in most cases conveyed. In order to relieve the tool from needless wear during the back-stroke of the planer-table, it is hung in what is called an " apron," so adjusted as to allow the tool to swing loose on the backstroke of the planer-table, but to be held rigidly when cutting. In large planers, when the weight of the tool is great, and in all fine planing, this liberation of the tool is not sufficient of itself, but some arrangement must be added whereby the tool-point shall be actually lifted clear of the work on the back-stroke and dropped into place ready for the cut after the article to be planed has passed under it. By my invention I am enabled to lift the tool in every position of the slide-rest, and to do so from within the cross-head without interfering with any of the machinery for working the feeds, which, as I have before said, occupy the center about which the adjustable part of the saddle rotates.
43,137	Jun. 14, 1864	Metal Planing Machine	William Sellers	Philadelphia, PA	The objects of my invention are to provide a means of dressing plane surfaces of metal in a more rapid and perfect manner than has heretofore been done, and also to provide a means of dressing the opposite sides or ends of the same piece at the same time. I effect this object by making use of rotary cutterheads, which carry a succession of tools acting consecutively upon the metal to be planed, the cutter-heads having their bearing or support so arranged as to give great steadiness to the cut, while the work is held upon tables which admit of ready adjustment.
46,714	Mar. 07, 1865	Machine for Rifling Gun Barrels	William Sellers	Philadelphia, PA
		Machine for Rifling Gun Barrels	Coleman Sellers	Philadelphia, PA
49,445	Aug. 15, 1865	Giffard Injector	William Sellers	Philadelphia, PA	Abstract: In this instrument, as heretofore constructed, the supply of water and steam has been regulated by means of screws, levers, or other devices controlled by hand, so that wherever the tension or pressure of the steam varies, the attendant is obliged to readjust the supply of water in order that the instrument may work to the best advantage, and whenever the pressure falls below the point to which the instrument has been adjusted a readjustment becomes necessary to prevent a waste of water at the overflow. In many boilers, such as the locomotive, and others having a small water and steam capacity compared to their heating-surface, and where the demand for steam is very irregular, the variations of the steam-pressure are considerable and very frequent, and the amount of attention required for regulating the injector becomes a serious inconvenience. The object of my invention is to make this regulation self-acting and dependent upon the amount of steam or water admitted to the instrument, and to utilize a power until now wasted at the overflow. The overflow, as heretofore used, has been for the purpose of permitting the escape of the water before it has attained sufficient velocity to enable it to enter the boiler when the jet is first started, and also to permit, when the jet is in motion, the superabundant water or steam to escape without stopping the operation of the instrument. It has long been known that the overflow was not necessary after the jet was fairly established, and the steam and water supply properly regulated; but it has not been known heretofore that when the jet is stopped by a superabundant supply of water, no provision being made for waste, an amount of lateral pressure may be obtained at the point of overflow nearly equal to that in the boiler. It has also been long]known that the fluid-jet, -in passing the point of overflow, will not, when in excess, carry along with it into the boiler any fluid that may be in contact with it, so that, if the overflow-chamber should be closed up, a moderate vacuum can be produced there by this action of the jet. The nature of my invention consists in using the pressure created by an overflowing jet to adjust the parts of the instrument so as to check the tendency to overflow, and in using the partial vacuum created by an excess of steam over water-supply to adjust the instrument to the new conditions without wasting any water at the point of overflow. The means employed by me for utilizing the power mentioned will be more fully understood from the following description, in which I illustrate a manner of regulating the instrument by an automatic adjustment of the water-supply only. Claim: The use of the overflow d d or its equivalent in the Giffard injector, in combination with a reservoir to retain the overflow-water in contact with the jet.
55,723	Jun. 19, 1866	Machine for Planing Metal	William Sellers	Philadelphia, PA	In nearly all planing-machines for metal the work is fastened to a table sliding back and forth on ways which control its position. To the ways are secured uprights, and to the uprights are fastened what is termed the "crosshead," this being the cross-slide of the compound slide-rest holding the planing tool. The crosshead is adjusted upon the uprights at varying distances above the table to suit the size of the work to be planed. Some few machines have been built with the cross-head attached to slides moving and guided in ways fastened to walls of masonry, motion being communicated to the slides and cross-head by means of screws or chains attached to and supported by the ways, and the materials to be planed resting on platforms in the pit formed by the side Avails. The crosshead having no vertical adjustment, the platforms which support the work are raised or depressed to suit the varying heights of the material. A modification of this form has also been employed that is to say, in order to decrease the depth of the pit, short uprights have been used, sliding in ways on top of the walls, the cross-head having an adjustment vertically upon these; but all machines of this class have heretofore used platforms to support the material to be operated upon, which are either adjustable in height to suit the varying heights of the material, or require that this, when small, should be elevated above the platform, to come within reach of the planing tool. Supposing the disadvantages overcome in this form of machine, it would be found well adapted to the heavier class of work, as it "would take up much less room, the moving parts could always be of the same weight, and generally much lighter than the work to be operated upon, so that it would require less power to drive it. The object of my invention is to overcome the disadvantages in this class of planing-machines and the nature of it consists in supporting the work to be operated upon on a stationary platform and the cross-head upon uprights or posts, as in machines of ordinary construction; but these uprights are so arranged as to slide in ways provided for that purpose in the sides of the stationary platform, so that the slides which govern the position of the tool are below the work to be operated upon in place of above it, as heretofore, and the cross-head can be elevated and depressed upon the uprights to suit the varying heights of the work, in place of elevating and depressing the platform.
75,059	Mar. 03, 1868	Injector for Feeding Boilers	William Sellers	Philadelphia, PA	Abstract: The objects of my present improvements are, first, to enable all injectors constructed for feeding steam-boilers to throw a smaller quantity of water than has heretofore been possible, and to accomplish this without in any way affecting their maximum capacity; second, to enable the instrument to draw its supply-water from a lower level without increasing the number of its parts; third, to simplify the construction of the self-adjusting injector; fourth, to enable the self-adjusting injector to lift its supply-water; and, fifth, to make the waste-orifice of the self-adjusting injector self-closing. The nature of my invention consists in the arrangement of the steam-discharge nozzles of all injectors constructed for feeding steam- boilers so that they may be elongated at the same time that the discharge-opening is being contracted; and it also consists in the construction of the divergent tube or pipe which delivers the water from the self-adjusting injector to the boiler, so that the boiler-pressure can exert but a very slight influence upon the end exposed to it, the internal construction of this pipe conforming as near as possible to that which the jet would assume when forced into a fluid at rest, in which case no lateral strain would be exerted upon the pipe, and the only pressure that could produce a longitudinal movement would be that exerted upon the edge where the parallel outside meets the divergent inside; and it also consists in the means for limiting the movement of the self-adjusting piston, so as to obtain an effective vacuum, and in closing the waste-orifice of the self-adjusting injector by the action of the injector itself; all of which is more fully explained by referring to the drawing herewith. Claim: The hole c in the end of the plug, which plug regulates the discharge of steam in the injector.
127,142	May. 28, 1872	Improvement in Machines for Planing the Facets of Polygonal Bars, Nut, etc.	William Fothergill Batho	Birminghan, England	Henry Baldwin jr. - patent attorney
127,929	Jun. 11, 1872	Improvement in Turning Lathes	William Sellers	Philadelphia, PA
136,101	Feb. 18, 1873	Improvement in machines for forming cutters for cutting the teeth of wheels	William Sellers	Philadelphia, PA
139,482	Jun. 03, 1873	Improvement in wheel-quartering machines	William Sellers	Philadelphia, PA	"My invention relates to machines of that class especially adapted for boring crank-pin holes in the driving-wheels of locomotives..."
141,173	Jul. 22, 1873	Self-Adjusting Injectors for Feeding Boilers	William Sellers	Philadelphia, PA	Abstract: The construction of the Giffard injector has been from time to time improved from the date of its introduction into public use by its inventor. It has always been provided with three separate nozzles or tubes, designated in the technology of the instrument as the receiving, the combining, and the delivery tubes, the combining-tube always being interposed between the other two; and in some of the earliest improved constructions provision was made for a limited adjustment between all of these nozzles. The self-adjusting injector was first described in the patent No. 49,445, issued to me August 15, 1865. This instrument was subsequently improved by me, as described in the patent No. 75,059, granted to me March 3, 1868, and the present invention is an improvement upon this latter construction. In the self-adjusting injectors constructed by me previous to this present invention, the combining and delivery tubes were attached to each other, and the regulation of the water was effected by moving these tubes toward and from the steam-discharging nozzle, or, as it is technically termed, the receiving-tube. In the instrument as first constructed by me the combining and delivery tubes moved through stuffing-boxes of equal diameter, the boiler-pressure being exerted between them, so that this pressure could have no influence tending to move these tubes in the direction of their axis. In the instrument patented by me in 1868, the exterior diameter of the delivery-tube was made as small as possible, and the boiler-pressure was exerted upon so much of the end of this tube as was exposed to it outside of the jet; this amount was so small as to exert no appreciable influence upon the self-regulating quality of the instrument, while its delicacy of adjustment was materially increased by dispensing entirely with the stuffing-boxes used in the first instrument. This latter was rendered possible by the small amount of boiler-pressure, which avoided all necessity for balancing it, so that one stuffing- box was dispensed with on this account and the reflux of water to the overflow-chamber was guarded against by pressing the delivery- tube through a long bushing, which served as a water packing, in place of the other stuffing- box, thus creating much less friction than the stuffing-box first used. It has been found, however, in practice that with gritty water this bushing is liable to wear under the constant movement of the delivery-tube, as it adjusts itself to the variations in the pressure of steam, and in time this wear becomes sufficient to allow enough water to pass into the overflow-chamber to prevent the operation of the instrument. In all the self-adjusting injectors constructed by me the adjustment has been effected by exposing the fluid jet between the combining and delivery tubes to the contents of the closed overflow-chamber, through which the jet passes on its way to the boiler and in all these instruments, previous to this invention, the distance between these tubes has been fixed by their construction. I have now discovered that the distance between these tubes may be greatly varied, and that the length of the jet exposed to the contents of the overflow-chamber may be correspondingly varied without impairing its efficiency to enter the boiler or to regulate the water-sup- ply; and I believe this capacity of the jet was never before known until I discovered it. This discovery enables me to separate the combining and delivery tubes as they were in the original Giffard injector, to fig the delivery- tube in the casing, and to effect the regulation of the water by the movement of the combining-tube alone, by this arrangement obviating entirely the wear previously described between the movable delivery-tube and its bushing; and this constitutes the first part of my present invention. In all self-adjusting injectors previous to my present invention, the waste of water required to start the instrument as a boiler- feeder has been provided for by an orifice between the delivery-tube and the boiler. In the patent No. 75,059 means were described for making this waste automatic, and the es- cape-valve, in that instance, was always exposed to the boiler-pressure when closed. Any deposit upon the valve-face would cause a serious waste of water under such a pressure, and consequently its use was only satisfactory when the instrument was supplied with pure water. I have now discovered that, by passing the jet through an orifice of suitable size, in a diaphragm between the combining and delivery tubes, the waste at starting may take place in the overflow-chamber itself through a moderately-weighted check-valve, which will close automatically when the jet has acquired sufficient velocity to enter the boiler; and this constitutes the second part of my invention. Claim: The combination, with a fixed receiving-tube and a fixed delivery-tube of a self-adjusting combining-tube
172,056	Jan. 11, 1876	Metal-Drilling Machine	William Sellers	Philadelphia, PA
172,508	Jan. 18, 1876	Revolving Puddlers	George H. Sellers	Wilmington, New Castle County, DE
174,014	Feb. 22, 1876	Feed-Motion for Drilling and Boring Machines	Coleman Sellers	Philadelphia, PA
195,220	Sep. 18, 1877	Improvement in devices for lifting work into and out of lathes	Elis Knight	Evanston, WY
208,425	Sep. 24, 1878	Injectors	William Sellers	Philadelphia, PA	Abstract: Some of the improvements are applicable to all forms of injectors; but as all of them are applicable to the self-adjusting injector described in tine United States Patent No. 141,173, granted to Wm. Sellers, July 22,1873, the drawings represent this form of injector. It has been found in practice, on locomotives especially, that in the self-adjusting injectors as constructed previous to one present invention the jet of water is liable to be broken by sudden jars or shocks when running at high speeds over rough tracks., In the self-adjusting injector the combining-tube, and consequently the column of water flowing to the injector, are frequently thrown into vibrations or oscillations by irregular condensation of the steam-jet, or from exteral causes, and violent shocks are liable to produce these vibrations of the water-supply .n all injectors. In the self-adjusting injector these vibrations, when once started, continue regularly, with a constantly-increasing intensity, until the jet is so much disturbed that it is broken and the injector ceases to work. We discovered that with a self adjusting combining-tube the vibration caused by a shock not sufficient to produce this effect in she first instance, yet being imparted to and transmitted through the column of water flowing to the injector, was amplified with the distance traversed until it agitated such a body of water as to_ break the jet, and we discovered that this was due to the fact that the column of water flowing to the injector was rigidly confined. It is the object of the first branch of our invention to prevent this transmission of shock to any considerable distance through he column of water flowing to the injector and to this end our invention consists in modifying the rigid confinement of the column of water flowing to the injector by means of an elastic medium more susceptible of vibration than the column itself, and which will therefore prevent the transmission of shock beyond the elastic medium, while the vibrations set up by the shock, having their regularity interfered with by the elastic medium, are speedily arrested. This object we accomplish in the best mode known to us by the use of an air-chamber, constructed and combined with the injector, as hereinafter particularly described, but we contemplate using instead of this air-chamber other devices. Claim: In an injector, the combination of a water-supply pipe, an air-chamber, and a contracted conduit between the air-chamber and the water-supply pipe.
		Injectors	J. Sellers Bancroft	Philadelphia, PA
212,438	Feb. 18, 1879	Injector for Steam-Boilers	George R. Buckman	Philadelphia, PA
224,798	Feb. 24, 1880	Injector for Feeding Boilers	William Sellers	Philadelphia, PA	Abstract: An object of our present invention is to provide a supplemental lifting jet or ejector apart from the ordinary lifting and forcing nozzles of the injector, but which shall be combined with the outer casing of our the injector, and so arranged as to draw its steam-supply within this casing and its water-supply through the combining-tube and overflow-chamber of the injector with which it is placed. Claim: A solid steam jet ejector, in combination with an injector, when the steam-conduit from the steam-valve of the ejector passes from the steam-chamber in the injector through the water-supply chamber of the injector.
		Injector for Feeding Boilers	J. Sellers Bancroft	Philadelphia, PA
224,762	Feb. 24, 1880	Injector for Feeding Boilers	John Sellers Bancroft	Philadelphia, PA
238,254	Mar. 01, 1881	Mechanism for Operating the Slide Rests of Lathes	William Sellers	Philadelphia, PA
243,634	Jun. 28, 1881	Feed Gearing for Machine Tools	William Sellers	Philadelphia, PA
		Feed Gearing for Machine Tools	John Sellers Bancroft	Philadelphia, PA
248,263	Oct. 11, 1881	Turning Lathe	William Sellers	Philadelphia, PA
		Turning Lathe	John Sellers Bancroft	Philadelphia, PA
260,791	Jul. 11, 1882	Friction Clutch	William Sellers	Philadelphia, PA
265,648	Oct. 10, 1882	Steam Injector	Garner C. Williams	Ellenville, Ulster County, NY	Abstract: The object of this invention is to produce an injector of plain construction, and capable of automatic action that will start in operation, lifting the water to itself, if necessary, simply upon the admission of steam, and without any further manipulation or adjustment of valves or cocks, which would require the attention of a skilled attendant, and also so arranged that if its action becomes interrupted it will readjust itself to its proper work again, and so continue as long as steam is supplied and there are no foreign substances to obstruct its operation. To accomplish this it is necessary to have one apparatus which will draw the water into the injector and deliver it with some force and great regularity to another apparatus that forces it to the place of final destination, and they must be so arranged and constructed that the second shall in no way at any time interfere with the first so as to prevent it from drawing the water into the injector, and also so that the second, when operating, shall receive the water delivered into the injector, by the operation of the first apparatus; and it tis also further necessary to provide a vent or outlet for the escape of the steam and water (luring the preliminary action of the injector without passing through the second apparatus, and to make the operation of the injector automatic this outlet must be fitted with a valve so arranged that it will close when the action of the injector is established and not before, and will remain closed so long as such action continues, but when such action is broken will open again to allow the injector to repeat the preliminary actions that go to produce its perfect working. Injectors have been made containing two sets of apparatus for the purpose indicated; but so far as I am aware their construction is such that when the injector has to lift its supply of water the second will not start in operation if steam is admitted-to both at the same time, it being necessary for the apparatus that draws the water into the injector to be first put in operation and the water made to cover the second apparatus before the latter is started. This renders it necessary to have separate valves for letting on the steam to each, and complicates both the construction and operation of the injector, and requires skilled attention and manipulation, which I obviate. I am also aware that single-jet injectors have been made in which a valve fitted to the vent or outlet, commonly called the " overflow", has been closed automatically; but in such cases it has been done in either one of two waysâ€”first, by the inward suction of the injector that may sometimes be established at the overflow, owing to an insufficient supply of water, or other imperfections in the working of the injector; but such closing is only to prevent air entering, and does not in any way prevent the escape of water when it is present at that point ; second, by the pressure of the water in the injector upon the valve itself to close it when the steam thereof is released by the raising of the check-valve; but such valve must remain closed until the check- valve again presses it open, and as the pressure upon it must at all times, while steam is turned on the injector, be considerable, it will lose its automatic action unless the check-valve is carefully arranged to prevent any free escape of water around it, and it will then only regain it when the steam is turned off. In my invention the closing of the valve by the device herein shown prevents all ingress or egress of water or air at that point, and whenever the injector ceases to work there is nothing to prevent the check-valve returning to its seat, when all the pressure of the water or steam in the injector will press up)on the valve and its attachments to open it. Claim: In a steam-injector, a water-inlet port opening into and an overflow-port opening out of one and the same chamber.
270,366	Jan. 09, 1883	Drill	John Sellers Bancroft	Philadelphia, PA
		Drill	William H. Thorne	Philadelphia, PA
331,178	Nov. 24, 1885	Injector	John Sellers Bancroft	Philadelphia, PA
374,908	Dec. 13, 1887	Planing Machine for Metals	William Sellers	Philadelphia, PA
		Planing Machine for Metals	John Sellers Bancroft	Philadelphia, PA
376,315	Jan. 10, 1888	Injector	Strickland L. Kneass	Philadelphia, PA	Abstract: My invention relates, principally, to that class of injectors in which the water receives io successive impulses from two or more jets of steam arranged in the same axial line, the velocity of the water being continually accelerated without being diverted from its course until it has acquired the velocity requisite to enable it to enter the boiler, but is also applicable to injectors having but one steam jet under suitable conditions. It is an object of my present invention to make an injector which shall be automatic in its action under variable conditions of water- supply and steam-pressure. and that shall be capable of restarting itself if from any cause the jet should be broken as soon as the disturbing cause is removed; and to this end my invention consists in providing an injector with a forcing combining-tube and a water-chamber provided with a water-inlet port and an over- flow-port which communicates with the atmosphere, which chamber contains the receiving and overflow openings of this combining-tube, in combination with a forcing steam-nozzle which terminates forward of the receiving end of the combining-tube; and it further consists in an annular lifting steam- nozzle, an annular lifting combining-tube, a central forcing steam-nozzle, and a forcing combining-tube, the discharging and of the forcing steam-nozzle being forward of the lifting combining-tube; and it further consists in an annular lifting steam-nozzle, an annular lifting combining-tube, a central forcing steam-nozzle, and a forcing combining- tube, the discharging end of the forcing steam- nozzle being forward of the receiving end of the forcing combining-tube; and it further consists in an annular lifting steam-nozzle, an annular lifting combining-tube, a central forcing steam-nozzle, a forcing combining-tube provided with a forward overflow-opening, a rear overflow-opening located at a point in the rear of that where the diameter of the, tube contracts to less than nine-tenths that of the discharging end of the steam-nozzle, with one or more intermediate overflow-openings, and an overflow-chamber in which all the overflow-openings are located. Claim: A forcing combining-tube and a water-chamber provided with a water-inlet port opening into and an overflow-port opening out of said chamber, which chamber contains the receiving and overflow openings of this combining-tube, in combination with a forcing steam-nozzle which terminates forward of the receiving end of the combining-tube.
417,659	Dec. 17, 1889	Means for Operating the Die Heads of Bolt Threading Machines	John Sellers Bancroft	Philadelphia, PA
419,589	Jan. 14, 1890	Coupling Shafting	Wilfred Lewis	Philadelphia, PA
421,178	Feb. 11, 1890	Machinery for Transmitting and Arresting Motion	Wilfred Lewis	Philadelphia, PA
421,345	Feb. 11, 1890	Tool Holder for Slotting Machines	Samuel Benson	Butte City, Silver Bow County, MT
454,801	Jun. 23, 1891	Boring and Turning Mills	Wilfred Lewis	Philadelphia, PA
460,497	Sep. 29, 1891	Tool Grinding Machine	John Sellers Bancroft	Philadelphia, PA	Original application filed 12 May 1887. Divided and this application filed 15 Nov 1889.
491,968	Feb. 14, 1893	Bending-roll	Wilfred Lewis	Philadelphia, PA	On 1893-06-06 this patent was cancelled due to errors made in the drawings by the Patent Office and reissued as patent 500,286.
497,754	May. 16, 1893	Planing Machine for Metal	Wilfred Lewis	Philadelphia, PA
500,286	Jun. 27, 1893	Bending-roll	Wilfred Lewis	Philadelphia, PA	This patent was originally issued as no. 491,968 but that issue was cancelled due to errors made in the drawings by the Patent Office and reissued as patent 500,286.
501,464	Jul. 11, 1893	Injector	Strickland L. Kneass	Philadelphia, PA	Abstract: All injectors have an overflow opening from the nozzles through which an escape of water takes place until the jet has acquired sufficient velocity to enter the boiler, and whenever a casing is employed to maintain the nozzles of the instrument in proper relation with each other, this overflow opening forms a part of this casing, or is rigidly attached thereto. In all injectors which are adapted to restart themselves, when from any cause the jet is broken, the overflow passage must be very large as compared with those which are manipulated to restart, and it frequently o occurs that in placing such injectors in the position they are required to occupy for working, this fixed overflow passage is a serious inconvenience, so much so in fact, as to limit the position of the instrument. For example, lifting injectors are preferably employed upon locomotive engines, because they can be placed in the cab above the level of the water in the tank, and thereby avoid waste of water through the injector. In this position it is frequently desirable to place the instrument so that its discharging end shall be outside the cab, while the handles for manipulating it, shall be inside, but with a fixed overflow passage this is impossible, without cutting a hole through the cab large enough to admit this overflow passage, and when the injector is in place, this hole must remain open to permit the prompt removal of the instrument if required. The direction of the o overflow may require to be adjusted to the right or to the left, dependent upon which side of the locomotive it is placed, so that when two injectors are used on each locomotive, which is now the universal practice, the injectors must be inclined in opposite directions or the pipes which receive the overflows must be bent, either of which is very undesirable. The objects of my present invention therefore are, to provide short and direct overflow o passages of sufficient cross sectional area to permit automatic restarting and to arrange the overflow passage so that its relation to the instrument can be modified at will. To these ends my invention consists in an overflow chamber and a removable casing, which encircles this chamber, provided with a check valve to prevent the admission of air to the chamber, through which casing the overflow has exit, and it further consists in an overflow chamber provided with a check valve to prevent the admission of air to the chamber, and a removable casing which encircles the chamber and the check valve, through which casing the overflow has exit. Claim: In combination with an injector, a removable overflow casing which encircles the body of the injector and contains a passage for the overflow, between the overflow chamber of the injector and the air.
508,268	Nov. 07, 1893	Machine for Sharpening Drills	John Sellers Bancroft	Philadelphia, PA
520,748	May. 29, 1894	Method of Operating Electric Motors	John Sellers Bancroft	Philadelphia, PA
541,620	Jun. 25, 1895	Injector	Strickland L. Kneass	Philadelphia, PA	Abstract: My invention relates to that form of injector in which the receiving end of the combining tube, and one or more of its additional openings, are contained in one chamber, and the description which follows will apply especially to that type in which two jets of steam or other actuating fluid are placed in the same axial line, so that the velocity of the water or other liquid may be constantly accelerated until it has acquired sufficient velocity to enter the boiler. All injectors in which the nozzles are fixed o and the areas of steam discharge and of water entrance to the combining tube are constant, have a steam pressure which is hereinafter called the limiting steam pressure, at which the maximum quantity of water will be delivered to the boiler, and above which, n- der the same conditions of water supply pressure and temperature, the capacity will decrease as the steam pressure is raised. During the operation of an injector, the absolute o pressure within the upper part of the combining tube where the steam jet comes in contact with the cold water supply, is always lower than the pressure in the supply chamber, owing to the partial vacuum caused by the condensation of the steam, and it is this difference in pressure which causes the snpply water to flow into the receiving end of the combining tube. As the area of this opening into the combining tube is constant, and the o difference in pressure is at its maxim um when the limiting steam pressure is reached, any increase in the weight of steam discharged, due to a rise in the steam pressure, will not be met by a corresponding increase of the inflow of the supply water to the combining tube, but, on the contrary, the less complete condensation of the steam in the upper part of this tube will reduce the difference in pressure and the inflow of feed will be lessened. Whenever an insufficient supply of water is provided, immediate condensation of the steam is not effected within the combining tube, and the low internal pressure will be communicated to and maintained in the surrounding overflow chamber, if provided with a suitable valve against the admission of air. The limiting steam pressure in the form of injector to which my invention chiefly ap- plies, and which is shown and described in United States Patent No. 376,315, granted to me January 10, 1887, is higher than that of other forms of injectors having fixed areas of admission, because its action depends upon certain relations which are nonexistent in other types. In the form of injector to which reference is made, the two actuating jets are placed in the same axial line and the combining tube of the lifting set discharges directly into the receiving end of the forcing combining tube. The capacity of this injector is much greater than that of its lifting set alone, owing to the fact that when the two sets are working in conjunction, the pressure within the receiving end of the forcing combining tube is reduced considerably below that of the atmosphere by the condensation of the forcing steam jet. These conditions obtain as the steam pressure rises, until the increased discharge from the forcing steam nozzle requires a greater supply of water than the lifting set can force through the fixed area of admission of the receiving end of the forcing combining tube, when the jet in this tube, while passing the apertures which open into the overflow chamber, will produce a partial vacuum at those points, and consequently also in the overflow chamber. Some of the water from the lifting set will then be diverted by this partial vacuum from the receiving end of the forcing combining tube into the overflow chamber, through the opening between the combining tubes of the lifting and the forcing sets, and will submerge the apertures in this forcing tube. The jet in this tube will 95 then draw this water in the overflow chamber into the combining tube through its submerged apertures and carry it into the delivery tube, thus materially increasing the capacity of the injector. These conditions obtain as the steam pressure rises, until the larger area of the lifting combining tube is just sufficient to supply the additional amount of water necessary for the condensation of the increased steam discharge, when the limiting steam pressure of this form of injector is reached, because the jet in the forcing combining tube requires for any increase in the steam pressure, an additional supply of water, which heretofore could not be provided without interfering with the satisfactory performance of the lifting nozzles at the lower pressures it is frequently desirable to use. Claim: An injector in which the actuating steam is divided into two or more jets and includes an overflow chamber which contains the receiving end and one or more apertures of a forcing combining tube, an outlet port to the r; air, and a supplemental inlet port from the water supply.
543,815	Jul. 30, 1895	Bending Rolls	William Sellers	Philadelphia, PA
		Bending Rolls	Wifred Lewis	Philadelphia, PA
552,873	Jan. 07, 1896	Testing Machine	William Sellers	Philadelphia, PA
		Testing Machine	John Sellers Bancroft	Philadelphia, PA
		Testing Machine	Carl G. Barth	Philadelphia, PA
625,267	May. 16, 1899	Injector	Strickland L. Kneass	Philadelphia, PA
642,009	Jan. 23, 1900	Hydraulic Press	William Sellers	Philadelphia, PA
		Hydraulic Press	Coleman Sellers	Philadelphia, PA
		Hydraulic Press	Wilfred Lewis	Philadelphia, PA
646,397	Mar. 27, 1900	Grinding-Machine	John Sellers Bancroft	Philadelphia, PA	Co-inventor William H. Thorne co-founded The Atlantic Works, which became an important maker of woodworking machinery.
		Grinding-Machine	William H. Thorne	Philadelphia, PA
668,718	Feb. 26, 1901	Lathe	William Sellers	Philadelphia, PA
		Lathe	Wilfred Lewis	Philadelphia, PA
724,514	Apr. 07, 1903	Machine Tool	William Sellers	Philadelphia, PA
734,799	Jul. 28, 1903	Tool Grinding Machine	John Sellers Bancroft	Philadelphia, PA
764,622	Jul. 12, 1904	Translucent Color-Comparator or Color-Screen	Alexander E. Outerbridge Jr.	Philadelphia, PA
826,130	Jul. 17, 1906	Swivel Punch Holder	Lars H. Vold	Westville, Gloucester County, NJ
878,256	Feb. 04, 1908	Centrifugal Pump	William H. Thorne	Mount Airy, Philadelphia County, PA
881,373	Mar. 10, 1908	Lathe Driver	John Burt	Narberth, Montgomery County, PA
887,985	May. 19, 1908	Turret Tool Rest	Lars H. Vold	Westville, Gloucester County, NJ
911,566	Feb. 09, 1909	Feed Mechanism for Metal Planing Machines and the Like	George H. Benzon Jr.	Philadelphia, PA
936,301	Oct. 12, 1909	Turret Tool Holder for Lathes	John Burt	Narberth, Montgomery County, PA
941,475	Nov. 30, 1909	Wheel lathe	Lars H. Vold	Westville, NJ
945,081	Jan. 04, 1910	Tool Holder	John Burt	Narberth, Montgomery County, PA
981,724	Jan. 17, 1911	Automatic Chuck for Boring and Turning Mills	Lars H. Vold	Westville, Gloucester County, NJ
990,421	Apr. 25, 1911	Belt Driving Mechanism for Reciprocating Parts of Machines	George H. Benzon Jr.	Jenkintown, PA	Howson & Howson - patent attorneys
1,072,533	Sep. 09, 1913	Loading and Unloading Apparatus	Lars H. Vold	Westville, Gloucester County, NJ
1,080,793	Dec. 09, 1913	Work Feeding Mechanism	Lars H. Vold	Westville, Gloucester County, NJ
1,107,731	Aug. 18, 1914	Means for Eliminating Vibrations in Rotary Shafts	Lars H. Vold	Westville, Gloucester County, NJ
1,111,391	Sep. 22, 1914	Valve	Strickland L. Kneass	Philadelphia, PA
1,380,699	Jun. 07, 1921	Planer	George H. Benzon Jr.	Jenkintown, PA	Frank S. Busser - patent attorney
1,455,556	May. 15, 1923	Clamping Mechanism for Machine Tools	William H. Thorne	Philadelphia, PA	Frank S. Busser - patent attorney
1,525,793	Feb. 10, 1925	Drive for Machine Tools	George H. Benzon Jr.	Jenkintown, Montgomery County, PA
1,567,705	Dec. 29, 1925	Lathe	John Burt	Narberth, Montgomery County, PA
1,629,712	May. 24, 1927	Injector	Strickland L. Kneass	Philadelphia, PA
1,712,148	May. 07, 1929	Process of Continuosly Supplying Steam at Low Pressure to Injectors	Strickland L. Kneass	Philadelphia, PA	Original application filed 05 Aug., 1924. Divided and this application filed 01 Jul., 1925.
1,810,747	Jun. 16, 1931	Differential Gear	George H. Benzon Jr.	Jenkintown, Montgomery County, PA
1,835,842	Dec. 08, 1931	Feed Mechanism	George H. Benzon Jr.	Jenkintown, PA	Howson & Howson - patent attorneys Original application filed 28 Dec, 1928. Divided and this application filed 20 Mar, 1930.
1,948,725	Feb. 27, 1934	Safey Connection	John D. McClintock	Philadelphia, PA
2,047,052	Jul. 07, 1936	Planer and Similar Machine	George H. Benzon Jr.	Jenkintown, PA	Howson & Howson - patent attorneys
2,112,896	Apr. 05, 1938	Apparatus for Cleaning Heat Exchangers and the Like	Robert M. Husband	Bala-Cynwyd, Montgomery County, PA
2,114,911	Apr. 19, 1938	Antifriction Bearing Center for Boring Mills	John Burt	Narberth, Montgomery County, PA
2,142,923	Jan. 03, 1939	Drill grinding machine	Roderick P. Stocking	Drexel Hill, PA	Patent number seen on a Type 1-G drill grinder from William Sellers & Co.
2,153,463	Apr. 04, 1939	Index Plate for Boring and Milling Machines	Charles L. Grover	Philadelphia, PA
2,176,682	Oct. 17, 1939	Method and Apparatus for Washing	IreneÃ© P. Pedrick	Philadelphia, PA
2,181,701	Nov. 28, 1939	Injector	Hermann E. F. C. Lingenbrink	Philadelphia, PA
2,248,249	Jul. 08, 1941	Injector	IreneÃ© P. Pedrick	Philadelphia, PA
2,252,655	Aug. 12, 1941	Rotatable Tool Holder	Harry Russell Young	Lower Merion, Montgomery County, PA	Howson & Howson - patent attorneys
		Rotatable Tool Holder	Roderick P. Stocking	Drexel Hill, Delaware County, PA
2,253,413	Aug. 19, 1941	Spindle Drive Control for Machine Tools	Harry Russell Young	Merion, Montgomery County, PA
2,303,270	Nov. 24, 1942	Spindle Speed Control Mechanism for Machine Tools	Charles L. Grover	Philadelphia, PA
2,340,199	Jan. 25, 1944	Feed Control for Planers and the Like	William R. Miller	Philadelphia, PA	Howson & Howson - patent attorneys