DE Patent: 118 - Schraubenschlüssel mit beweglicher Backe


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DE Patent: DE-118

Schraubenschlüssel mit beweglicher Backe

Patentee:

Jules Henry Perrenoud (exact or similar names) - Cortaillod, Switzerland

USPTO Classifications:

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

none listed

Patent Dates:
Granted:	Aug. 07, 1877
Antedated:	Aug. 07, 1877

Patent Pictures:

German patent 118 - composite edited image

Espacenet patent
Report data errors or omissions to steward Stan Schulz
German patent 118 in ESPACENET

Description:

Cam lever presses a spring-loaded toothed plate into fine rack teeth on the back of the shank to hold the adjustment. This is the first wrench patent found in the German patent system which began in 1877.

German patent Klasse 87 (a) Gruppe 8.