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US Patent: 149,587
Improvement in Screwdrivers
Patentee:
Willard S. Kyle - Blue Island, IL

USPTO Classifications:
81/33

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. H. Lotz
H. Bischoff

Patent Dates:
Applied: Feb. 24, 1874
Granted: Apr. 14, 1874

Patent Pictures:
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Description:
Utilizes a pawl and lever in the handle to allow the blade to ratchet in either direction depending upon the how the pawl stud is inserted into the handle due to the bevel at the end of the pawl.

Kyle acknowledges Hildreth's patent 112,143 and disclaims that as part of his invention.

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