DE Patent: 425,020 - Schraubenschluessel mit im Kopf eingebautem, umsteuerbarem Schaltwerk


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DE Patent: DE-425,020

Schraubenschluessel mit im Kopf eingebautem, umsteuerbarem Schaltwerk

Patentee:

USPTO Classifications:

Tool Categories:

wrenches : ratchet wrenches

Assignees:

Spezial-Werzeugfabrik Feuerbach G.m.b.H - Stuttgart-Feuerbach, Germany

Manufacturer:

Spezial-Werzeugfabrik Feuerbach G.m.b.H - Stuttgart-Feuerbach, Germany

Witnesses:

Unknown

Patent Dates:
Granted:	Feb. 09, 1926
Antedated:	Dec. 21, 1924

Patent Pictures:

German patent DE425,020 - edited drawing

Espacenet patent
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German patent DE-425,020 (ESPACENET)

Description:

German patent corresponding to U.S. 1,629,205 for a reversible ratchet structure in a wrench head. The ALL-IN-ONE which was distributed in the U.S. by Emil Schwarz (Chicago) incorporates this ratchet structure. In keeping with German patent conventions, the patent is issued to the company rather than a named individual.

German Patent Klasse 87 (a), Gruppe 12. The ESPACENET entry notes corresponding patents in several European countries.

A portion of the ALL-IN-ONE resembles the structure in DE-402,843 and corresponding British patent GB-205,819, where a selector "blocks" ratchet pawls to determine left- or right-hand action, and the specifications include the "push-button" angle lock between the handle and head.