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DE Patent: DE-230,568
Knarrenartig zu handhabender Schraubenschlüssel mit offenem Maul für Sechskantmuttern und einem drehbar gelagerten; ausschwenkbaren Maulstück
Patentees:
Max Nolden (exact or similar names) - Solingen, Germany
Paul Meyer (exact or similar names) - Solingen, Germany

USPTO Classifications:

Tool Categories:
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
H. Wilke & Co. - Remscheid, Germany

Witnesses:
Unknown

Patent Dates:
Granted: Jan. 30, 1911
Antedated: Jan. 27, 1910

Patent Pictures: [ 1 | 2 ]
German patent "summary" for 230,568 - edited
Espacenet patent
Report data errors or omissions to steward Stan Schulz
German patent DE-230568 (ESPACENET)
Description:
Pivoting jaw segment provides gripping five sides of hexagonal nuts, and a form of "ratchet" motion.

"Ein Schraubenschlüssel mit offenem Maul, der eine sechskantige Schraubenmutter von fünf Seiten faßt und eine knarrenartige Handhabung des Schraubenschlüssels gestattet."

1913 items in German trade and technical journals & subsequent ads identify H. Wilke & Co (Remscheid) as German manufacturer. Produced in sizes corresponding to common nut sizes of the period. See also notes in entries for corresponding patents in Austria [AT-62,039], Canada [CA-130,472], Great Britain [GB-191019234] and the U.S. [1,015,504].

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