US Patent: 453,537 - Ratchet Tool


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US Patent: 453,537

Ratchet Tool

Patentees:

Francis G. Bates (exact or similar names) - Philadelphia, PA

Frank H. Bates (exact or similar names) - Philadelphia, PA

USPTO Classifications:

408/122, 74/146, 81/58.5, 81/98

Tool Categories:

wrenches : ratchet wrenches

Assignees:

Francis G. Bates - Philadelphia, PA

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Sep. 29, 1890
Granted:	Jun. 02, 1891

Patent Pictures:

Francis G. Bates and Frank H. Bates patent June 2, 1891

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Description:

"Friction" ratchet, with a curved surface on a stud on the handle binding against the outside surface of the driven member. This could drive a drill or wrench sockets. A pin inserted in the frame limits motion of the handle, so the ratchet grip only works in one direction.

This patent is noted in E. H. Reed's March 9, 1897 patent (no. 578,421).