If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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2,159,373
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May. 23, 1939
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Torque wrench
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Allen I. Dunn |
Cedar Rapids, IA |
Enclosed "flexible bar" type with indicator dial. Features include "rack & toothed gear" connection to the indicator dial, provision for adjusting effective length of internal lever, and option for including ratchet action.
This patent number together with 2,159,354 appears on known examples of KWIK-WAY torque wrenches made by Cedar Rapids Engineering Company. |
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2,159,354
|
May. 23, 1939
|
Torque wrench
|
Allen I. Dunn |
Cedar Rapids, IA |
Initial application divided; the remainder resulted in patent no. 2,159,373. This patent includes focus on one form of the rachet, means to re-calibrate the setting, and notes the operation of the indicator dial. Both patent numbers appear on examples of KWIK-WAY torque wrenches made by the Cedar Rapids Engineering Co. |