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US Patent: 1,527,772
Fireman's Spanner
Cassius M. Clay Baird - Chicago, IL

USPTO Classifications:

Tool Categories:
wrenches : firehose and hydrant wrenches


Akron Brass Mfg. Co. - Wooster, OH

Martin H. Olsen

Patent Dates:
Applied: Apr. 21, 1924
Granted: Feb. 24, 1925

Patent Pictures: [ 1 | 2 | 3 ]
Cassius M. Clay Baird patent February 24, 1925
USPTO pdf tiff
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The curved face of the hook is to better fit tapered curved lugs on fire hose couplings. The hook is large enough to catch on a ladder rung. The wide opening on the end of the handle is for a strap to connect the tool to a hose when the tool is used to hang hose from a ladder.

One known example marked BI-LATERAL FIRE HOSE COMPANY, CHICAGO ILL. It is not clear if this is a manufacturer's mark or brand mark for a specific company's application. The patent date also appears on a different style of fireman's combination tool produced by the Akron Brass Mfg. Co.

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