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US Patent: 546,295
Wrench
Improvements in Sliding-Jaw Wrenches
Patentee:
Christian Black (exact or similar names) - Green Cove Springs, FL

USPTO Classifications:
81/134, 81/179

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. H. Raeder
H. F. Matthews
Thos. Roberts
Geo. N. Bardin

Patent Dates:
Applied: May 20, 1895
Granted: Sep. 17, 1895

Patent Pictures:
Christian Black patent September 17, 1895
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Description:
Rack and pawl quick adjustment, and a sliding grip surface on the one jaw of a pipe wrench. The size adjusting pawl lever is held in engagement with the rack teeth on the shank by a coil spring.

The specifications do not mention the pipe and nut wrench combination feature shown in the drawings.

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