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US Patent: 147,059
Improvement in Screw Drivers
Patentee:
George P. Loomis - Utica, NY

USPTO Classifications:
81/32

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Dexter Gillmore
Alfred Banister

Patent Dates:
Applied: Oct. 17, 1873
Granted: Feb. 03, 1874

Patent Pictures:
USPTO pdf tiff
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Description:
Utilizes a disk that engages a double reversible toothed pawl to provide the ratchet feature.

Loomis disclaims Hildreth's patent 112,143 in his application.

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