US Patent: 374,928


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US Patent: 374,928

Wrench

Patentee:

Henry Bowhall (exact or similar names) - Cedar Springs, MI

USPTO Classifications:

81/357

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Aug. 15, 1887
Granted:	Dec. 20, 1887

Patent Pictures:

Henry Bowhall patent December 20, 1887

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Description:

A pawl at the base of the swinging lever holds the adjustment. The pawl pivots on a secondary axis, and is held in position by a compression spring beneath a thumb lever.