US Patent: 785,581


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US Patent: 785,581

Level

Patentee:

Alvertus V. Shorts (exact or similar names) - Allegheny, PA

USPTO Classifications:

33/381, 33/387

Tool Categories:

layout tools : levels : level adjustments

layout tools : levels

Assignees:

None

Manufacturer:

W. H. Hill - Cambridge Springs, PA

Witnesses:

H. C. Evert

K. H. Butler

Patent Dates:
Applied:	Apr. 06, 1904
Granted:	Mar. 21, 1905

Patent Pictures: [ 1 | 2 | 3 ]

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Description:

Four levels are housed in one annular frame that can be rotated by use of a worm gear. Casing is provided with degree markings to allow any angle desired to be set.

Known example is marked A. V. SHORTS/PAT'D. MAR.21.05/TOWNVILLE, PA. and W.H.HILL/MANFR.CAMBRIDGE SPRINGS,PA.