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US Patent: D24,518
Handled Wrench Head
Walter T. Johnston - Macon, GA

USPTO Classifications:

Tool Categories:
wrenches : wrench components : wrench jaw components
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : pipe wrenches


W. T. Johnston & Co. - New York, NY
Wm. B. Volger - New York City, NY

Robert D. Leonard
Charles D. Hurt

Patent Dates:
Applied: Apr. 12, 1895
Granted: Jul. 30, 1895

Patent Pictures: [ 1 | 2 | 3 ]
Walter T. Johnston design patent July 30, 1895
USPTO pdf tiff
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The head is a curved surface with a slot, comprising the "fixed" jaw of a swinging hook jaw pipe wrench.

Marketed as the JOHNSTON AUTOMATIC. 1st manufacturer attribution from Aug. 18, 1897 "Hardware Dealers' Magazine." 2nd manufacturer attribution from example of company letterhead dated Sept. 15, 1900. Fred Pfeiffer of New York succeeded Volger in 1905. Barnes Tool Co. of New Haven, CT included the JOHNSTON wrench in their 1902 catalog.

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