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US Patent: 1,135,896
Franklin S. Hay - Elton, Wi

USPTO Classifications:
81/129.5, 81/141, 81/146

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


Not known to have been produced

Wm. Koerth
M. F. Gannett
C. F. Ladwig
Grace McKenna

Patent Dates:
Applied: Feb. 04, 1914
Granted: Apr. 13, 1915

Patent Pictures:
Franklin S. Hay patent Oct. 13, 1915
USPTO pdf tiff
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A tension spring pulls the movable jaw closed; a toggle on the movable jaw engages rack teeth on the movable jaw with rack teeth on the shank to hold the adjustment. A spring catch in the handle can hold the movable jaw in "fully open" position. The movable jaw has provision for a supplemental sloping face pipe gripping jaw.

An Oct. 28, 1915 IRON AGE announcement hints that Hay attempted to produce the wrench.

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