US Patent: 582,517 - Shaft Level


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US Patent: 582,517

Spirit Level
Shaft Level

Patentee:

Stephen H. Bellows (exact or similar names) - Athol, MA

USPTO Classifications:

33/381, D10/69

Tool Categories:

layout tools : levels : machinist levels

Assignees:

None

Manufacturer:

Standard Tool Co. (Athol) - Athol, MA

Witnesses:

Albert F. Robbins

Andrew J. Hamilton

Patent Dates:
Applied:	Jan. 26, 1897
Granted:	May 11, 1897

Patent Pictures: [ 1 | 2 | 3 ]

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Description:

Three vial level with "V" bottom and one end that allows a pitch adjustment. Patent claim is for the general construction and the use of the faceplate that secures all three vials.