US Patent: 260,135 - Screw-Driver


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US Patent: 260,135

Screw-Driver

Patentee:

James Swan (exact or similar names) - Seymour, CT

USPTO Classifications:

279/102

Tool Categories:

screwdrivers : screwdriver handles

Assignees:

None

Manufacturer:

James Swan Co. - Seymour, CT

Witnesses:

G. W. Gregory

Bernice J. Noyes

Patent Dates:
Applied:	Apr. 03, 1882
Granted:	Jun. 27, 1882

Patent Pictures:

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Description:

This is an attempt to overcome the propensity of round-shank screwdrivers to twist loose under torque or split the handle if flattened and compressed in it. A threaded socketed metal receiver is installed in the thickest part of the handle, for strength, and the shaft is installed up through a somewhat loose fitting hole into the socket. It is interchangeable with other bits.