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US Patent: 455,645
Bolt-Grip
Patentee:
Thomas Spriggs - Little River, KS

USPTO Classifications:
269/221, 269/234, 81/116, 81/13, 81/455

Tool Categories:
wrenches
wrenches : tire bolt wrenches

Assignees:
None

Manufacturer:
Spriggs and Troyer - Little River, KS

Witnesses:
F. McArdle
C. Sedgwick
Carl Buck
Albert Perry

Patent Dates:
Applied: Dec. 02, 1890
Granted: Jul. 07, 1891

Patent Pictures: [ 1 | 2 ]
Thomas Spriggs patent July 7, 1891
USPTO pdf tiff
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Description:
The side jaws are tightened by separate thumb screws or the like. The central spur is tightened by a crank handle. The tool's primary use is to hold countersunk headed wagon and carriage tire bolts. It could also be made to function as a nail puller or as a pipe wrench.

Known examples marked "SPRIGGS & TROYER BOLT GRIP PAT JUL. 7, 1891 LITTLE RIVER KANS" appear to have been hand-made. The crank handle and body of the tool are brass castings.

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