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US Patent: 1,796,083
August E. Carlberg - Worcester, MA

USPTO Classifications:
7/138, 81/124.5, 81/125.1, 81/177.8, 81/440

Tool Categories:
wrenches : socket wrenches

Stevens Walden, Inc. - Worcester, MA

Not known to have been produced

C. F. Wesson

Patent Dates:
Applied: Jan. 07, 1930
Granted: Mar. 10, 1931

Patent Pictures:
August E. Carlberg patent March 10, 1931
USPTO pdf tiff
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The principal objects of this invention are to provide improved heads for the type of wrench shown and claimed in my prior patent, Reissue RE16,354, issued 16 Jun, 1925, on original Letters Patent #1,542,336; to provide an improvement in which a larger number of tools will be made available for use in a single device and in fact, in its preferred form, it is provided with 15 members adapted to fit different nuts, heads, sockets, slots and the like and to provide a plug wrench having a number of individual members, each one being capable of being use at any desired angle and with full efficiency at all angles.

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