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US Patent: 1,521,331
Clutch Wrench
Patentee:
Reginald F. Sedgley (exact or similar names) - Philadelphia, PA

USPTO Classifications:
81/58.3, 81/60

Tool Categories:
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. D. McVay
E. Hayward Fairbanks

Patent Dates:
Applied: Dec. 26, 1921
Granted: Dec. 30, 1924

Patent Pictures:
Reginald F. Sedgley patent Dec. 30, 1924
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Description:
The patent describes a clutch mechanism as an alternate to ratchets in wrenches. At the center of this clutch are toothed segments with a spring that holds them apart. The spring is compressed to allow the teeth to engage.

Compare this structure to patent no. 1,443,413 used by Snap-On. Cited in "references" in 2,671,367.

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