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US Patent: 1,382,851
Adjustable Friction Wrench
Patentee:
Julius A. Pitsch (exact or similar names) - Los Angeles, CA

USPTO Classifications:
81/58.5

Tool Categories:
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 02, 1920
Granted: Jun. 28, 1921

Patent Pictures:
Julius A. Pitsch patent June 28, 1921
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Description:
A circular block contains a worm-and-rack adjustable wrench head. The block is housed in a circular frame with a swinging handle. The end of the handle within the frame bears against the circular block to create a ratchet effect.

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