US Patent: 384,743


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US Patent: 384,743

Wrench

Patentee:

Belden Thomas Bryan (exact or similar names) - Evansville, WI

USPTO Classifications:

81/133

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Mar. 24, 1888
Granted:	Jun. 19, 1888

Patent Pictures:

Belden Thomas Bryan patent June 19, 1888

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Description:

A pinion gear inside the movable jaw engages rack teeth on the main shank. Ratchet teeth on both sides of the pinion gear are held by spring pawls that can be retracted by a thumb lever.