US Patent: 201,276 - Improvement in Spirit Level and Plumb


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US Patent: 201,276

Improvement in Spirit Level and Plumb

Patentee:

Joab Morss - Philadelphia, PA

USPTO Classifications:

33/385

Tool Categories:

layout tools : levels : wooden levels

Assignees:

None

Manufacturer:

Keystone Tool Works - Philadelphia, PA

R. & E. Mfg. Co - New York, NY

Disston & Morss - Philadelphia, PA

Witnesses:

Hermann Moessner

Harry Smith

Patent Dates:
Applied:	May 07, 1877
Granted:	Mar. 12, 1878

Patent Pictures:

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Description:

Adjustable level and plumb. Bearing point is rigid while the adjusting screws act directly on the vial casing which is claimed to provide a more certain and delicate adjustment than adjustments provided by springs or spring arms. Known example marked with patent date and R & E MNFG Co.