Manufacturers Index - Wilson Mechanical Instrument Co.
Wilson Mechanical Instrument Co.
New York, NY, U.S.A.
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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1,411,396
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Apr. 04, 1922
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Electrical-resistance thermometer
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Charles H. Wilson |
Mount Vernon, NY |
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Electrical-resistance thermometer
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Cuthbert J. Brown |
North Pelham, NY |
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1,516,207
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Nov. 18, 1924
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Hardness-testing machine
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Stanley P. Rockwell |
Syracuse, NY |
One of the two patents covering the original and famous Rockwell hardness tester; see also patent 1,516,208. This one is a follow-on to the inventor's patent 1,294,171 and is aimed at making a portable hardness tester. |
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1,516,208
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Nov. 18, 1924
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Hardness-testing machine
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Stanley P. Rockwell |
West Hartford, CT |
One of the two patents covering the original and famous Rockwell hardness tester; see also patent 1,516,207. This one is an improvement to the inventor's patent 1,516,207 that is aimed at improving accuracy. |
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1,571,310
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Feb. 02, 1926
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Penetrator for testing penetration hardness
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Charles H. Wilson |
North Pelham, NY |
It is not known whether this patent was used, but the inventor had established the Wilson Mechanical Instrument Co., Inc., to manufacture Rockwell hardness testers. |
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1,690,517
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Nov. 06, 1928
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Electrical controller and recorder
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Charles H. Wilson |
North Pelham, NY |
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Electrical controller and recorder
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Cuthbert J. Brown |
North Pelham, NY |
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1,762,497
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Jun. 10, 1930
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Automatic hardness tester
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Charles H. Wilson |
Pelham, NY |
Improvements to Stanley P. Rockwell's patents 1,516,207 and 1,516,208. |
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1,762,498
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Jun. 10, 1930
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Hardness-testing method and apparatus
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Charles H. Wilson |
Pelham, NY |
Improvements to the inventor's patent 1,762,497. |
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1,885,972
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Nov. 01, 1932
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Hardness testing gauge
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Charles H. Wilson |
Pelham, NY |
Improvements to the Rockwell hardness tester, patents 1,516,207 and 1,516,208, intended to reduce friction as a confounding factor that led to inaccurate measurements. |
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1,890,923
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Dec. 13, 1932
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Test piece support for hardness testers
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Charles H. Wilson |
Pelham, NY |
It is not known whether this patent was used, but the inventor had established the Wilson Mechanical Instrument Co., Inc., to manufacture Rockwell hardness testers. |
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336,012
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Sep. 26, 1933
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Hardness tester
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Charles H. Wilson |
Pelham, NY |
Canadian equivalent of US patent 1,885,972, which covers improvements to the Rockwell hardness tester. |
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395,516
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Mar. 25, 1941
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Hardness testing device
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Charles H. Wilson |
Pelham, NY |
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2,361,441
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Oct. 31, 1944
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Hardness testing indenter
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Charles H. Wilson |
Pelham, NY |
This hardness testing tip is intended for testing very hard and thin materials such as chrome plating. |
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2,362,941
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Nov. 14, 1944
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Penetrator chuck retainer
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David F. Sklar |
Brooklyn, NY |
Improvements to a portion of patent 1,885,972. |
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