US Patent: 494,994 - Socket Wrench


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US Patent: 494,994

Socket Wrench

Patentee:

Henry P. Tryon (exact or similar names) - Sedalia, MO

USPTO Classifications:

81/175, 81/75

Tool Categories:

wrenches : axle nut wrenches

wrenches : socket wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jan. 07, 1893
Granted:	Apr. 04, 1893

Patent Pictures:

Henry P. Tryon patent April 4, 1893

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Description:

A side plate in the socket is moved by a screw crank. It clamps the wrench on to an axle nut to remove, hold and replace it during the process of oiling an axle hub.