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US Patent: 389,627
Screw Cutting Die
Patentee:
Aloys Wirsching - Brooklyn, NY

USPTO Classifications:
33/199R, 408/156, 408/179, 81/488

Tool Categories:
wrenches : tap wrenches and die stocks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. C. Bowen
Jas. S. Ewbank
Francis C. Bowen

Patent Dates:
Applied: Mar. 01, 1888
Granted: Sep. 18, 1888

Patent Pictures:
Aloys Wirsching patent September 18, 1888
USPTO pdf tiff
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Description:
The focus of the patent is the die which hinges at one side, and is adjustable by the action of a wedging screw and two clamping screws.

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