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US Patent: D47,855
Face Spanner Wrench
Patentee:
Clifford A. Martin - New York, NY

USPTO Classifications:
D8/56

Tool Categories:
wrenches

Assignees:
J. H. Williams & Co. - Brooklyn, NY

Manufacturer:
J. H. Williams & Co. - Brooklyn, NY

Witnesses:
Charles B. Harris
Charles E. Ahrensfield
René Bruine
T. F. Wallace

Patent Dates:
Applied: Nov. 14, 1914
Granted: Sep. 21, 1915

Patent Pictures:
Clifford A. Martin patent September 21, 1915
USPTO pdf tiff
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Description:
The design is an adjustable face spanner -- the pins fit corresponding holes in threaded collars, threaded circular covers, etc. These typically appear as bearing adjusting cones or packing adjusting for shafts, or for small access covers where a flush surface is important.

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