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US Patent: 393,421
Screw Driver
Patentee:
Felix Chantrell (exact or similar names) - Reading, PA

USPTO Classifications:
192/34, 81/29

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. J. Dwight
Rob't L. Keith
Garrett B. Stevens
F. Pierce Hummel

Patent Dates:
Applied: Apr. 28, 1888
Granted: Nov. 27, 1888

Patent Pictures:
Felix Chantrell patent November 27, 1888
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Description:
The patent has a metal cap at the end of the handle, with an interior spring, and a tapered throat that engages a corresponding flared end on the screwdriver shank. This provides a kind of ratchet action.

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