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US Patent: 920,372
Socket Wrench
Patentee:
Charles W. McDaniel - Portsmouth, NH

USPTO Classifications:
81/163, 81/165, 81/DIG.3

Tool Categories:
wrenches : socket wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
Charles W. McDaniel - Portsmouth, NH
Edward B. Cole - United States Marine Corps, n.a.

Manufacturer:
Not known to have been produced

Witnesses:
E. Batchelder
P. W. Pezzeti
S. W. Emery, Jr.
S. T. Ladd

Patent Dates:
Applied: Jun. 13, 1908
Granted: May 04, 1909

Patent Pictures:
Charles W. McDaniel patent May 4, 1909
USPTO pdf tiff
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Description:
Adjustable jaw socket on an extended shank. The patent presents a version with paired adjustable jaws with rack teeth moved by a single right- and left-hand threaded adjusting worm. The end of the shank is shaped to fit a brace, or removable "T" handle.

A known McDANIEL adjustable socket wrench similar to this patent has a single adjustable jaw operated by a worm and rack adjustment, as shown in McDaniel's further refinement of the concept as a "Duplex Wrench" (patent no. 1,246,447).

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