US Patent: 249,311


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US Patent: 249,311

Pick

Patentee:

Joseph Cyrus Cramer (exact or similar names) - Leadville, CO

USPTO Classifications:

403/191

Tool Categories:

wrenches : auxiliary wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jul. 22, 1881
Granted:	Nov. 08, 1881

Patent Pictures:

Joseph C. Cramer patent November 8, 1881

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Description:

The patent is for a two-piece pick head. The pick portion is removable for replacement or resharpening. It is held in place by a set screw. The wrench to tighten and loosen the set screw is shown in the drawings and described in the specifications.