US Patent: 1,443,413 - Socket Wrench


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US Patent: 1,443,413

Socket Wrench

Patentee:

Joseph Johnson (exact or similar names) - Milwaukee, WI

USPTO Classifications:

81/177.85, 81/58.3

Tool Categories:

wrenches : ratchet wrenches

Assignees:

Snap-On Wrench Co. - Milwaukee, WI

Manufacturer:

Snap-On Wrench Co. - Milwaukee, WI

Blackhawk Mfg. Co. - Milwaukee, WI

Witnesses:

O. E. Hyde

A. F. Miller

Patent Dates:
Applied:	Jul. 01, 1920
Granted:	Jan. 30, 1923

Patent Pictures: [ 1 | 2 ]

Joseph Johnson patent January 30, 1923

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Snap-On Tools Company History
COLLECTING SNAP-ON

Description:

This ratchet action is an in-line device used for "T" handled ratchet socket drivers produced by Snap-On Tools. The patent number also appears on a similar in-line ratchet produced by Blackhawk Mfg. A spring between two elements with "teeth" provides a clutch.