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US Patent: 429,075
Wrench
Improvement in Wrenches For Fish-Plate Bolts
Patentee:
Webster Wells (exact or similar names) - Boston, MA

USPTO Classifications:
81/57

Tool Categories:
wrenches : socket wrenches

Assignees:
Mechanical Manufacturing Company - Nashua, NH

Manufacturer:
Not known to have been produced

Witnesses:
Thomas F. Wells
Frank G. Parker
Alex. L. Hayes

Patent Dates:
Applied: Feb. 04, 1889
Granted: May 27, 1890

Patent Pictures:
Webster Wells patent May 27, 1890
USPTO (New site tip)
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Description:
The crank and gear mechanism turns the nuts while the friction is not too great. Final tightening and initial loosening is accomplished by the lever inserted in the hole in the base of the socket.

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