Manufacturers Index - Pickering Governor Co.
Pickering Governor Co.
Portland, CT, U.S.A.
Manufacturer Class:
Steam and Gas Engines
This page contains information on patents issued to this manufacturer.
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36,621
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Oct. 07, 1862
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Improved centrifugal governor
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Thomas R. Pickering |
New York, NY |
Earlier governors used balls being rotated by the engine; gravity pulled the balls down and great rotational speed lifted the balls up. Pickering was dissatisfied with the accuracy of this mechanism and his innovation was to replace the action of gravity with that of leaf springs that pull the balls inward. The Pickering governor was a rousing success. |
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50,624
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Oct. 24, 1865
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Governor
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Thomas R. Pickering |
New York, NY |
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185,188
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Dec. 12, 1876
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Shaft-Hangers
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Thomas R. Pickering |
Portland, Middlesex County, CT |
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318,289
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May. 19, 1885
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Safety Attachment for Steam Engine Governors
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Thomas R. Pickering |
Portland, Middlesex County, CT |
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807,266
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Dec. 12, 1905
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Governor Head
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Stephen S. Hall |
Portland, Middlesex County, CT |
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815,114
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Mar. 13, 1906
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Governor for Engines
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Richard H. Pascall |
Portland, Middlesex County, CT |
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854,418
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May. 21, 1907
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Engine-governor
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Stephen S. Hall |
Portland, CT |
This improved Pickering governor patent has been seen on a governor made by the assignee. The design improves the means of adjusting the valve rods so the adjustment knob does not become too hot to touch. |
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856,056
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Jun. 04, 1907
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Engine Governor
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Stephen S. Hall |
Portland, Middlesex County, CT |
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868,119
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Oct. 15, 1907
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Governor
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Richard H. Pascall |
Portland, Middlesex County, CT |
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937,993
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Oct. 26, 1909
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Engine Governor
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Stephen S. Hall |
Portland, Middlesex County, CT |
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979,289
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Dec. 20, 1910
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Self Locking Automatic Stop for Governors
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Stephen S. Hall |
Portland, Middlesex County, CT |
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982,598
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Jan. 24, 1911
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Universal Joint
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Stephen S. Hall |
Portland, Middlesex County, CT |
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1,003,198
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Sep. 12, 1911
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Engine Governor
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Richard H. Pascall |
Portland, Middlesex County, CT |
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1,674,950
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Jun. 26, 1928
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Governor
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Irving M. Crafts |
Portland, Middlesex County, CT |
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