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US Patent: 241,881
Wrench
Patentee:
Henry Franklin Read - Brooklyn, NY

USPTO Classifications:
81/129.5, 81/134, 81/173, 81/176.1, 81/DIG4

Tool Categories:
wrenches : nut wrenches
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
H. F. Read & Co. - New York, NY

Witnesses:
A. E. H. Johnson
J. W. Hamilton Johnson

Patent Dates:
Applied: Oct. 25, 1880
Granted: May 24, 1881

Patent Pictures:
H. F. Read Pat. May 24, 1881
USPTO pdf tiff
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Description:
A combination quick and screw adjust wrench, with a single internal piece having both the threads for the adjusting nut, and the teeth to engage a rack on the shank for the quick-adjust action. Read describes this as an improvement on his May 13,1873 patent (no. 138,932). Examples of the READ RAILROAD WRENCH have markings reflecting these Read patents. One extraordinary example is a gold-plated nominal four-inch piece with ivory handle engraved "Chauncey Depew N.Y.C. & H.R.R.R."

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