US Patent: 2,185,910 - Screw Gripping Screwdriver


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US Patent: 2,185,910

Screw Driver
Screw Gripping Screwdriver

Patentee:

Seth J. Cox (exact or similar names) - Franklin, PA

USPTO Classifications:

81/453

Tool Categories:

screwdrivers : screwdriver blades

Assignees:

None

Manufacturer:

Unknown

Witnesses:

none listed

Patent Dates:
Applied:	Aug. 14, 1937
Granted:	Jan. 02, 1940

Patent Pictures: [ 1 | 2 | 3 ]

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Description:

This Patent relates to the use of one hand to grip and un- grip the screw by the addition of jaw adjusting slide.This is a an improvement on Patent 1562543 , which is am improvement on Patent 1412550. Samples marked,"S.J.Cox,Franklin,PA. Pat.No.1562543 on the handle ferrule as well as "Pat.2185010.Jan'04" on the jaw adjusters. Interestingly the Patent number is wrong, it be longs to a optical comparator.