Van Norman Machine Tool Co. - Assigned Patents

Manufacturers Index - Van Norman Machine Tool Co.

Van Norman Machine Tool Co.
Springfield, MA, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

Submitting Patent Information

If you find a patent number or patent date by this manufacturer that is not on this list, please contact the Site Historian.

Key to Links for Patent Information

USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number	Date	Title	Name	City	Description
570,723	Nov. 03, 1896	Milling Machine	Charles E. Van Norman	Springfield, Hampden County, MA	This invention relates to milling machines, and particularly to that class provided with a pivotally-hung tool-carrying head adjustable in a vertical plane to any degree of a circle having for a center the pivot on which said head turns; and the invention consists more particularly in the construction of the driving mechanism for the milling1 tool or cutter, whereby the latter is positively driven by means of shafts having suitable gear connections with each other, said connections being attached to and adapted to move with the horizontally-sliding head to which the tool carrying head is attached.
578,588	Mar. 09, 1897	Milling-machine	Charles E. Van Norman	Springfield, MA
587,537	Aug. 03, 1897	Combined lathe and milling-machine	Charles E. Van Norman	Springfield, MA
588,510	Aug. 17, 1897	Milling-machine	Charles E. Van Norman	Springfield, MA
659,461	Oct. 09, 1900	Engraving and die-sinking machine	Frederick D. Van Norman	Springfield, MA
741,743	Oct. 20, 1903	Steam-engine	Charles E. Van Norman	Springfield, MA
765,447	Jul. 19, 1904	Milling Machine	Charles E. Van Norman	Springfield, Hampden County, MA
938,803	Nov. 02, 1909	Metal-working machinery	Charles E. Van Norman	Springfield, MA
979,903	Dec. 27, 1910	Tool-holder for lathes	Frederick D. Van Norman	Springfield, MA
RE13,584	Jun. 24, 1913	Tool-holder for lathes	Frederick D. Van Norman	Springfield, MA
1,099,218	Jun. 09, 1914	Spindle-bearing-lubricating device	Frederick D. Van Norman	Springfield, MA
1,102,558	Jul. 07, 1914	Grinding-machine	Charles E. Van Norman	Springfield, MA
1,141,854	Jun. 01, 1915	Tool-holder for lathes	Frederick D. Van Norman	Springfield, MA	Improvements to 13,584.
1,155,176	Sep. 28, 1915	High-speed-spindle device	Frederick D. Van Norman	Springfield, MA
RE14,193	Sep. 19, 1916	Watchman's clock	Franklin Hardinge	Chicago, IL
1,229,352	Jun. 12, 1917	Milling-machine	Charles E. Van Norman	Springfield, MA	This patent date was seen on a Van Norman #10 Duplex Milling Machine. The patent covers the change-speed gearbox.
1,445,875	Feb. 20, 1923	Grinding machine	Charles E. Van Norman	Springfield, MA	This lathe-style grinder is intended for use in repairing automotive pistons, wrist pins, valves, and the like.
		Grinding machine	Robert W. Ellingham	Springfield, MA
1,515,568	Nov. 11, 1924	Grinding machine	George W. Fleming	Springfield, MA	Improvements to patent 938,803, to particularly adapt it to grinding turbine blades and similarly curved surfaces.
		Grinding machine	Robert W. Ellingham	Springfield, MA
1,544,287	Jun. 30, 1925	Grinding machine	Charles E. Van Norman	Springfield, MA	Improvements to patent 1,445,875.
1,646,801	Oct. 25, 1927	Grinding machine	Frederick D. Van Norman	Springfield, MA
		Grinding machine	George W. Fleming	Springfield, MA
1,716,331	Jun. 04, 1929	Method of making collets	Byron F. Stowell	Springfield, MA	This invention relates to manufacturing "double ended split collets", and which are capable of fitting a larger size range than traditional collets, and which are, furthermore, hardened and tempered.
1,722,691	Jul. 30, 1929	Grinding machine	Charles E. Van Norman	Springfield, MA
1,735,804	Nov. 12, 1929	Collet	Byron F. Stowell	Springfield, MA	This collets have a wide range of adjustment. See also patent 1,716,331.
1,749,514	Mar. 04, 1930	Valve-reseating apparatus	James Y. Scott	Longmeadow, MA
1,761,059	Jun. 03, 1930	Polishing machine	Byron F. Stowell	Springfield, MA
		Polishing machine	Charles E. Van Norman	Springfield, MA
1,763,201	Jun. 10, 1930	Magnetic throw-off for grinding machines	Frederick D. Van Norman	Springfield, MA	Improvements to patent 13,892.
1,788,475	Jan. 13, 1931	Feed mechanism for grinding machines	Charles E. Van Norman	Springfield, MA	This patent's application was originally part of what became patent 1,722,691 but the original application was divided.
1,812,455	Jun. 30, 1931	Diaphragm chuck	Byron F. Stowell	Springfield, MA	This chuck is intended for "holding the outer races off ball bearings for grinding."
1,830,179	Nov. 03, 1931	Cutting Tool	Byron F. Stowell	Hampden, Hampden County, MA
1,858,693	May. 17, 1932	Chuck	Charles E. Van Norman	Springfield, Hampden County, MA
1,868,440	Jul. 19, 1932	Boring machine and method	Ewald A. Arp	Minneapolis, MN	Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,906,241, 1,881,993, and 1,954,034. "My invention relates to machines for finishing the bore of cylinders. It relates more particularly to machines for use in connection with cylinders of automobile engines, either to finish the bore of new cylinders or to refinish the bore of cylinders which have become uneven through use. An object of the invention is to provide a machine which will give a smooth and uniform finish to the bore of the cylinder making it unnecessary to follow up the cutting operation by a honing operation..."
1,870,350	Aug. 09, 1932	Adjustable boring head	Frederick D. Van Norman	Springfield, MA
1,881,993	Oct. 11, 1932	Tool attachment device	Ewald A. Arp	Minneapolis, MN	Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,906,241, and 1,954,034. This invention...relates to the art of attaching portable cutting or finishing tools... In its preferred application the device will serve as a machine base for attaching cylinder boring or finishing tools to the engine block of multiple cylinder engines."
1,881,984	Oct. 11, 1932	Slide Mechanism for Precision Grinding Machines	Charles E. Van Norman	Springfield, Hampden County, MA
1,906,241	May. 02, 1933	Method and apparatus for predetermining the size of rebored cylinders	Ewald A. Arp	Minneapolis, MN	Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,881,993, and 1,954,034. This invention relates to the art of boring cylinders and has particular reference to the reboring of worn cylinders of internal combustion motors. One object of the invention is to provide an improved method of predetermining the size of the rebored cylinder without the necessity of making measurements directly upon the cylinder while it is being machined. Another object is to provide an improved mechanism for facilitating the adjustment of the cutting mechanism while the cutter is removed from the boring device...."
1,908,577	May. 09, 1933	Oscillating Grinder	Charles E. Van Norman	Springfield, Hampden County, MA
RE18,832	May. 16, 1933	Tool attachment device	Ewald A. Arp	Minneapolis, MN	Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,906,241, and 1,954,034. This invention...relates to the art of attaching portable cutting or finishing tools... In its preferred application the device will serve as a machine base for attaching cylinder boring or finishing tools to the engine block of multiple cylinder engines."
1,918,147	Jul. 11, 1933	Carriage positioning mechanism for grinding machines	Byron F. Stowell	Springfield, MA	This invention's "preferred embodiment" is for "an oscillating grinding machine adapted for the manufacture of races for ball bearings."
1,926,603	Sep. 12, 1933	Automatic feed for grinding machines	Byron F. Stowell	Springfield, MA	This invention's preferred embodiment is for an oscillating grinders adapted for the manufacture of outer races for ball bearings.
1,954,034	Apr. 10, 1934	Equalizing boring guide	Ewald A. Arp	Minneapolis, MN	Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,881,993, and 1,906,241. This invention is an improvement on patent 1,868,440
1,959,435	May. 22, 1934	Milling machine	Newman M. Marsilius	Bridgeport, CT	Improvements to gang milling machines adapted for any-angle milling, including slot milling, face milling, straddle milling, and continuous milling, and using a turret tool-holder. This patent number was seen on a Van Norman No. 12 milling machine.
1,975,985	Oct. 09, 1934	Method and apparatus for grinding valve seats	Byron F. Stowell	Springfield, MA
2,036,658	Apr. 07, 1936	Automatic grinding machine	Byron F. Stowell	Springfield, MA	Improvements to patents 1,918,147 and 1,926,603.
2,036,656	Apr. 07, 1936	Valve seat cutter	Byron F. Stowell	Springfield, MA
		Valve seat cutter	Roger S. Pyne	Longmeadow, MA
2,036,657	Apr. 07, 1936	Valve Seat Puller	Byron F. Stowell	Springfield, Hampden County, MA
2,059,753	Nov. 03, 1936	Universal index head	Byron F. Stowell	Springfield, MA
		Universal index head	James Y. Scott	Springfield, MA
2,076,508	Apr. 06, 1937	Oscillating grinder	Frederick D. Van Norman	Springfield, MA	Grinder adapted to grinding spherical bearing races, which create higher forces against the grinding wheel.
2,113,414	Apr. 05, 1938	Gauge Mechanism	Byron F. Stowell	Springfield, Hampden County, MA
2,125,442	Aug. 02, 1938	Valve regrinding device	Francis P. Healy	Springfield, MA	Improvements to patent 1,975,985.
2,149,409	Mar. 07, 1939	Oscillating grinder	Roger S. Pyne	Springfield, MA
		Oscillating grinder	Byron F. Stowell	Springfield, MA
		Oscillating grinder	Frederick D. Van Norman	Springfield, MA
2,189,604	Feb. 06, 1940	Boring bar guiding mechanism	Francis P. Healy	Springfield, MA	See also patent 2,196,827.
2,196,827	Apr. 09, 1940	Tool guide for boring machines	Francis P. Healy	Springfield, MA	This is a "continuation in part" of the application that became patent 2,189,604.
2,202,425	May. 28, 1940	Hand milling machine	Newman M. Marsilius	Bridgeport, CT
2,204,855	Jun. 18, 1940	Boring head	Francis P. Healy	Springfield, MA
2,207,861	Jul. 16, 1940	Boring bar guiding mechanism	Francis P. Healy	Springfield, MA
2,230,716	Feb. 04, 1941	Table Drive for Milling Machines	Frank W. Curtis	Springfield, Hampden County, MA
2,233,551	Mar. 04, 1941	Fluid pump	Robert W. Ott	Stratford, CT
2,263,928	Nov. 25, 1941	Milling machine	Newman M. Marsilius	Bridgeport, CT
		Milling machine	Robert W. Ott	Stratford, CT
2,281,921	May. 05, 1942	Tumble Change Gear Mechanism	Frank W. Curtis	Springfield, Hampden County, MA
2,289,874	Jul. 14, 1942	Milling Machine	Frank W. Curtis	Springfield, Hampden County, MA
2,301,525	Nov. 10, 1942	Milling Machine	Frank W. Curtis	Springfield, Hampden County, MA	The original application was divided and a second patent was issued, #2,338,624. Abstract: This invention relates primarily to improvements in milling machines, although in certain aspects these improvements may have a wider range of use. One object of the invention is to improve the arrangement of gearing contained in the knee of a milling machine for driving the various table rates. In particular the invention is concerned with improvements in the manner in which the feed and rapid traverse drives are obtained from a single power drive shaft; in the arrangement of gearing whereby the weight distribution in and the consequent stability of the knee are improved; in the simplification of the distributing gearing for driving the table, saddle, and knee either forward or reverse at the selected rate, and in the arrangement of the gearing to facilitate a unitary control of the change gear mechanism. A further object is to improve the gear shifting control by which the feed rate is determined so that only a single handle need be moved to select the desired rate. A further object is to improve the knee structure so as to give improved stability and guidance to the elevating mechanism and so that the elevating mechanism itself will contribute to the stability of the knee. A further object is to improve the manner of mounting the shaft bearings in the knee to simplify their manufacture and increase their accessibility. A further object is to improve the table operating mechanism. Claim: In a machine tool having a bed, a knee vertically movable on the bed, a saddle transversely movable on the knee, a table longitudinally movable on the saddle, and a tool mounted for operation upon work carried by the table; mechanism for moving the knee, saddle, and table sleeve, speed changing mechanism within the knee laterally disposed with respect to said shaft and connecting the main drive with the sleeve, drive shafts for the knee, saddle and table each running from the front of the kneerearwardly, reversing clutch mechanism for each of said drive shafts each including a forward and a reverse gear and being positioned near the front of the knee, and distributing gearing positioned near the front of the knee and connecting the common drive shaft with said reversing clutches.
2,302,744	Nov. 24, 1942	Spindle Control for Machine Tools	Frank W. Curtis	Springfield, Hampden County, MA
2,304,779	Dec. 15, 1942	Toolhead Unit	Frank W. Curtis	Springfield, Hampden County, MA
2,308,647	Jan. 19, 1943	Hydraulic Machine Tool	Frank W. Curtis	Springfield, Hampden County, MA
2,309,241	Jan. 26, 1943	Dividing Head	Frank W. Curtis	Springfield, Hampden County, MA	Claim: In a dividing head, a body, a spindle mounted in the body for rotation about a longitudinal axis, trunnions on the body having a common axis transverse to the longitudinal axis, a base, saddles on the base one for each trunnion and having a semicircular bearing surface for the trunnions, cap members one for each saddle and having semicircular bearing surfaces complementary to the bearing surfaces of the saddles, means to draw each cap and saddle member toward each other to lock the trunnion against rotation Comprising at abutting surfaces formed, at one end of each saddle and cap, means to hold said surfaces together, flat abutting surfaces on he opposite end of said cap and saddle, the last mentioned abutting surface on the saddle comprising a fiat step formed near the outer edge of he saddle and supporting the flat abutting surface of the cap at its outer edge, a relieved portion extending from the step inwardly to the saddle bearing surface, and means located between said step and inner bearing surface for adjustment to draw said cap and saddle towards each other.
2,325,746	Aug. 03, 1943	Metal Cutting Tool with Inserted Teeth	Frank W. Curtis	Springfield, Hampden County, MA
2,327,404	Aug. 24, 1943	Milling Machine	Frank W. Curtis	Springfield, Hampden County, MA
2,328,061	Aug. 31, 1943	Hydraulic Vise	Frank W. Curtis	Springfield, Hampden County, MA
2,334,581	Nov. 16, 1943	Cross-feed for grinding machines	Roger S. Pyne	Longmeadow, MA
2,338,624	Jan. 04, 1944	Elevating Mechanism for Machine Tool Knees	Frank W. Curtis	Springfield, Hampden County, MA	Original application 08 Mar 1940, now patent #2,301,525, dated 10 Nov 1942. Divided and this application 27 Nov 1940. This patented elevating mechanism is similar to that used on the Van Norman Models 26, 36, 28, and 38. Abstract: One object of the invention is to improve the knee structure so 'as to give improved stability and guidance to the elevating mechanism and so that the elevating mechanism itself will contribute to the stability of the knee. A further object is to improve the drive and stability of operation of the knee to the end that smooth operation and freedom from chatter will be present even when the elevating mechanism is driven at a rapid traverse rate. A further object is to provide a construction of knee elevating mechanism in which the telescopic parts extending between the vertically movable knee and base will have a maximum protection against dirt and metal chips. A further object is to provide a construction which will prevent leakage of oil from the interior of the knee when, as is preferable, the knee acts as an oil reservoir for the gearing contained in it. Claim: A knee structure for milling machines and the like comprising a frame, a hollow knee vertically movable on the frame, a vertical splined shaft journaled for rotation upon the frame and having a free end extending upwardly into the knee, a gear splined to the shaft, distributing gearing within the knee coupled to said gear, and a tubular member having a closed upper end and secured to said gear in position to completely enclose that part of the splined shaft above the gear and within the hollow knee to form an oil seal, said closed upper end being remote from the gear a distance substantially corresponding to the maximum vertical travel of the knee.
2,357,088	Aug. 29, 1944	Cutting Tool	Frank W. Curtis	Springfield, Hampden County, MA
2,361,995	Nov. 07, 1944	Method of Making Metal Cutting Tools	Frank W. Curtis	Springfield, Hampden County, MA
2,365,748	Dec. 26, 1944	Hydraulic Circuit	Frank W. Curtis	Springfield, Hampden County, MA
2,370,580	Feb. 27, 1945	Cross-feed mechanism for grinding machines	Roger S. Pyne	Longmeadow, MA
		Cross-feed mechanism for grinding machines	Edward A. Allen	Westfield, MA
2,381,687	Aug. 07, 1945	Drive for oscillating grinders	Roger S. Pyne	Longmeadow, MA
		Drive for oscillating grinders	Edward A. Allen	Westfield, MA
2,381,648	Aug. 07, 1945	Spark Gap	Frank W. Curtis	Springfield, Hampden County, MA
2,384,078	Sep. 04, 1945	Throttle Valve for Machine Tool Control	Frank W. Curtis	Springfield, Hampden County, MA
2,400,767	May. 21, 1946	Grinding attachment	Harold Gass	New York, NY
		Grinding attachment	Constantine Melidoni	New York, NY
2,412,937	Dec. 24, 1946	Boring head	Edward A. Allen	Westfield, MA
2,413,068	Dec. 24, 1946	Diaphragm chuck	Roger S. Pyne	Longmeadow, MA	This chuck was primarily intended for holding ball-bearing inner races during grinding.
2,416,996	Mar. 04, 1947	Boring bar guiding mechanism	Francis P. Healy	Springfield, MA
		Boring bar guiding mechanism	Edward A. Allen	Westfield, MA
2,429,685	Oct. 28, 1947	Chuck for crankshaft grinders	Francis P. Healy	Springfield, MA
2,447,334	Aug. 17, 1948	Crankshaft regrinding chuck	Francis P. Healy	Springfield, MA
2,451,137	Oct. 12, 1948	Contour grinding machine for work pieces each having a hollow spherical section	Charles E. White	Ashburnham, MA	The invention is a machine "for grinding contours on work pieces have spherical surface areas, such as pattern plates or forms used in manufacturing spectacle lenses."
2,470,617	May. 17, 1949	Control for Variable Displacement Pumps	William M. Hoddinott	Springfield, Hampden County, MA
2,479,973	Aug. 23, 1949	Chuck	James Y. Scott	Longmeadow, MA	This chuck is for holding valve stems while the valve's seating surface is reground
		Chuck	Francis P. Healy	Springfield, MA
		Chuck	Edward A. Allen	Westfield, MA
2,484,708	Oct. 11, 1949	Work supporting cradle for grinding machines	Francis P. Healy	Springfield, MA
2,584,499	Feb. 05, 1952	Apparatus for precision bore grinding	Roger S. Pyne	Longmeadow, MA	This invention is primarily intended for grinding grooves in the outer races of ball bearings. See also patent 2,652,663.
2,652,663	Sep. 22, 1953	Method and apparatus for compensating for grinding wheel wear	Edward C. Taylor	Springfield, MA	This invention is primarily intended for grinding grooves in the outer races of ball bearings, and is an improvement to patent 2,584,499.
2,657,470	Nov. 03, 1953	Presetting device for boring tools	Francis P. Healy	Springfield, MA
		Presetting device for boring tools	Edward A. Allen	Westfield, MA
2,727,339	Dec. 20, 1955	Grinding wheel feed for grinding machines	Roger S. Pyne	Longmeadow, MA
		Grinding wheel feed for grinding machines	Richard M. Anderson	Springfield, MA
2,737,760	Mar. 13, 1956	Machine tool apparatus	Francis P. Healy	Springfield, MA
2,761,981	Sep. 04, 1956	Electro mechanical transducers	Albert Axelrod	Bronx, NY	This transducer is related to radar apparatus on-board an aircraft. The assignee was acquired in 1956 by Van Norman Industries, Inc.
2,851,828	Sep. 16, 1958	Centerless grinder	Alexander W. Todd	Springfield, MA
		Centerless grinder	Russell L. Fleming	Springfield, MA
		Centerless grinder	Richard M. Anderson	Springfield, MA
2,851,831	Sep. 16, 1958	Hydraulic work-supporting clamp assembly	Francis P. Healy	Springfield, MA	The suggested application for this work holder is in re-machining an engine head.
565,711	Nov. 04, 1958	Read-out apparatus for movable indicating mechanisms	William R. Bliss	Denver, CO	In 1958, machine tool maker Van Norman Co. acquired Digit-Ometer Co., which became part of Van Norman's Electronics Division in Manchester, NH.
579,568	Jul. 14, 1959	Indicating and recording apparatus	Edwin P. Davis	Denver, CO
2,894,683	Jul. 14, 1959	Mechanical indicating apparatus for computing machines	Edwin P. Davis	Denver, CO	This patent relates to an electro-mechanical accounting calculator. It was assigned via mesne assignments to Van Norman; presumably it was originally assigned to Digit-Ometer Co. of Denver, CO. See Canada patents 565,711 and 579,568.
2,895,121	Jul. 14, 1959	Read-out apparatus for movable indicating mechanisms	William R. Bliss	Denver, CO	This patent relates to an electro-mechanical accounting calculator. It was assigned via mesne assignments to Van Norman; presumably it was originally assigned to Digit-Ometer Co. of Denver, CO. See Canada patents 565,711 and 579,568.
2,896,139	Jul. 21, 1959	Electromechanical transducer for controlling a tuning condenser in an oscillator circuit	Albert Axelrod	Bronx, NY	This patent is a continuation in part of the application that led to patent 2,761,981; see that patent for more information.
2,897,636	Aug. 04, 1959	Work rest for a centerless grinder	Albert H. Tompkins	East Longmeadow, MA
		Work rest for a centerless grinder	Roger S. Pyne	Longmeadow, MA
2,911,763	Nov. 10, 1959	Work feeding mechanism for a centerless grinder	Alexander W. Todd	Springfield, MA
		Work feeding mechanism for a centerless grinder	Henry P. Kwapien	Westfield, MA
2,919,902	Jan. 05, 1960	Hollow drill	Milton J. Steffes	Dearborn, MI
2,929,172	Mar. 22, 1960	Machine for cutting a succession of workpieces to a predetermined size	Joseph H. Pasell	Dartmouth, MA
2,962,584	Nov. 29, 1960	Improvements in or relating to switching devices for signal transceivers	Samuel K. Lackoff	Manchester, NH
2,969,122	Jan. 24, 1961	Hollow drill	Milton J. Steffes	Dearborn, MI	A division of the application that led to patent 2,919,902.
2,970,407	Feb. 07, 1961	Drill point grinding machine	Joseph H. Pasell	Dartmouth, MA
2,990,656	Jul. 04, 1961	Automatically operable centerless grinder	Albert H. Tompkins	East Longmeadow, MA
3,046,491	Jul. 24, 1962	Frequency standard signal generator	Samuel K. Lackoff	Manchester, NH
3,047,250	Jul. 31, 1962	Reel construction	Tore V. Saether	Auburn, IN	Garrett, Ind., was the home of the Hubbard Spool Company Division of Van Norman Industries, Inc.
3,060,812	Oct. 30, 1962	Milling machine	Francis P. Healy	Springfield, MA	"This invention relates to a milling machine adapted to handle comparatively large and heavy workpieces..."
		Milling machine	Edward A. Allen	Westfield, MA
3,070,763	Dec. 25, 1962	Variable attenuators	Alfred M. Reslock	Suncook, NH
3,082,868	Mar. 26, 1963	Method and apparatus for packaging, shipping and supplying wire	Eber J. Hubbard	Springfield, MA	This patent provides improvements on patent 2,889,921.