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US Patent: 751,055
Ratchet Screw Key
Patentee:
Camille Contal - Paris, France

USPTO Classifications:
81/124.6, 81/177.75, 81/177.85, 81/58.3

Tool Categories:
wrenches : ratchet wrenches
wrenches : wrench components : wrench handle components

Assignees:
None

Manufacturer:
Frank Mossberg Co. - Attleboro, MA
Quincy, Manchester, Sargent Company - Chicago, IL

Witnesses:
Jas. A. Koehl
K. M. Cordua
Augustus E. Ingram
Maurice Roix

Patent Dates:
Applied: Oct. 15, 1903
Granted: Feb. 02, 1904

Reissue Information:
Reissued as RE12,379 (Aug. 15, 1905)

Patent Pictures: [ 1 | 2 ]
Camille Contal Pat. February 2, 1904
USPTO pdf tiff
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Description:
The shaft has a spring-loaded "slip clutch" type ratchet. A central ring has top and bottom "teeth" facing opposite. A sliding ring on the outside of the tool can be positioned to lock the ratchet action to the "head", the "stem", or to both simultaneously, thus providing both forward and reverse ratchet action, as well as straight drive.

French patent FR-327,011 of June 12, 1903 and British patent GB-190322391 with an effective date of Dec. 4, 1902 correspond to this patent.

The rod handle, and universal joint are typical for the time, and are described in the specifications.

Marketed in the U.S. as the Auto-Cle by Quincy Manchester Sargent Co. of Chicago through 1908, and then by the Frank Mossberg Company.

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