Manufacturers Index - Potter & Johnston Machine Co.
Potter & Johnston Machine Co.
Pawtucket, RI, U.S.A.
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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USPTO's for finding information on machinery patents.
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533,978
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Feb. 12, 1895
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Milling-machine
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Amos Whitney |
Hartford, CT |
Co-inventor Whitney was co-founder of the Pratt & Whitney Co. This invention is a machine for making bicycle sprocket-wheels. Co-inventor Johnston was a machine designer Pratt & Whitney. In 1893 Johnston left to co-found the Potter & Johnson Machine Co. |
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Milling-machine
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John Johnston |
Hartford, CT |
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635,976
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Oct. 31, 1899
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Lathe-chuck
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James Charles Potter |
Pawtucket, RI |
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Lathe-chuck
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John Johnston |
Pawtucket, RI |
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649,175
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May. 08, 1900
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Shaping Machine
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James Charles Potter |
Pawtucket, Providence County, RI |
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Shaping Machine
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John Johnston |
Pawtucket, Providence County, RI |
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761,905
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Jun. 07, 1904
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Gearing
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Ernest B. Sellew |
Pawtucket, RI |
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Gearing
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John Johnston |
Pawtucket, RI |
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Gearing
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James C. Potter |
Pawtucket, RI |
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772,477
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Oct. 18, 1904
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Turret-lathe
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James C. Potter |
Pawtucket, RI |
This turret lathe automatically adjusts feed and speed for each turret position. |
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Turret-lathe
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John Johnston |
Pawtucket, RI |
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RE12,287
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Nov. 22, 1904
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Shaping Machine
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James Charles Potter |
Pawtucket, Providence County, RI |
Prindle & Russell - patent attorneys |
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Shaping Machine
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John Johnston |
Pawtucket, Providence County, RI |
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849,697
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Apr. 09, 1907
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Clutch
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John Johnston |
Pawtucket, RI |
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Clutch
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James C. Potter |
Pawtucket, RI |
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942,843
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Dec. 07, 1909
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Gearing
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John Johnston |
Pawtucket, RI |
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Gearing
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James Charles Potter |
Pawtucket, RI |
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991,886
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May. 09, 1911
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Turret Lathe
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James C. Potter |
Pawtucket, Providence County, RI |
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Turret Lathe
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John Johnston |
Pawtucket, Providence County, RI |
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1,028,605
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Jun. 04, 1912
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Bar-turning tool
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James Charles Potter |
Pawtucket, RI |
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1,098,167
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May. 26, 1914
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Metal-sawing machines
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James Charles Potter |
Pawtucket, RI |
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1,109,301
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Sep. 01, 1914
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Tool for machining bevel-gear blanks and other objects with inclined surfaces
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James Charles Potter |
Providence, RI |
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1,115,972
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Nov. 03, 1914
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Automatic turret-lathe
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James C. Potter |
Providence, RI |
This patent references a clutch patent used by Potter & Johston, 849,697. |
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1,197,541
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Sep. 05, 1916
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Automatic turret-lathe
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James C. Potter |
Pawtucket, RI |
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