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Manufacturers Index - Joseph Clarkson & Son

Joseph Clarkson & Son
Baltimore, MD, U.S.A.
Manufacturer Class: Wood Working Machinery & Steam and Gas Engines

Patents
This page contains information on patents issued to this manufacturer.

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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
194,221 Aug. 14, 1877 Improvement in cutter-heads for grooving and channeling Frank S. Clarkson Baltimore County, MD The assignees Cromwell and Sloan are described as "composing the firm of C. Sidney Norris & Co."
201,749 Mar. 26, 1878 Improvement in sash-pulleys Edward H. N. Clarkson Baltimore, MD This patent is of interest because a mortising machine was developed to produce the mortise required by this pulley; see patent 9,221.
    Improvement in sash-pulleys William H. H. Kesler Baltimore, MD  
RE8,586 Feb. 18, 1879 Improvement in sash-cord guides William H. H. Kesler Baltimore, MD This patent is of interest because a mortising machine was developed to produce the mortise required by this pulley; see patent 9,221. Eventually both the pulley and mortiser patents were owned and used by C. Sidney Norris & Company of Baltimore, and were sold across the country.
    Improvement in sash-cord guides Edward H. N. Clarkson Baltimore, MD  
216,722 Jun. 24, 1879 Mortising-machine Edward H. N. Clarkson Baltimore, MD This patented mortiser made the mortise required for the Kesler & Clarkson sash pulley that was the subject of patent 8,586.
216,767 Jun. 24, 1879 Improvement in sash-cord guides Frank B. Sloan Baltimore, MD Of interest because co-inventor Clarkson seems to have also been involved in making woodworking machinery.
    Improvement in sash-cord guides Frank S. Clarkson Baltimore, MD  
RE9,221 Jun. 01, 1880 Mortising-machine Edward H. N. Clarkson Baltimore, MD This patented mortiser made the mortise required for the Kesler & Clarkson sash pulley that was the subject of patent 8,586.
249,306 Nov. 08, 1881 Mortising-machine Frank S. Clarkson Baltimore, MD
827,618 Jul. 31, 1906 Sash-pulley Frank S. Clarkson Baltimore, MD