US Patent: 373,872 - Ratchet Cork Screw


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US Patent: 373,872

Corkscrew
Ratchet Cork Screw

Patentee:

Ernest Dwight Williams (exact or similar names) - Boston, MA

USPTO Classifications:

74/543, 81/29, 81/3.45

Tool Categories:

household : cork extractors : mechanical cork extractors

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jan. 31, 1887
Granted:	Nov. 29, 1887

Patent Pictures:

Ernest D. Williams patent November 29, 1887

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Description:

The shaft of the corkscrew has a ratchet at the end with a square portion adjacent. The ratchet works to drive the screw into the cork. By shifting the handle so the square portion of the shank engages a square section of the enclosing socket, the handle and shank are locked to withdraw the screw.