US Patent: 883,642
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| Spirit Level
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Patentee:
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| Albert W. Hight (exact or similar names) - Ballard, King County, WA |
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Patent Dates:
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| Applied: |
Jul. 08, 1907 |
| Granted: |
Mar. 31, 1908 |
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Patent Pictures:
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1 | 2
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Joel Havens
Martin J. Donnelly Antique Tools
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Description: |
| Robert B. Wilson - patent attorney
My invention relates to a spirit level, and has for its object to provide a convenient instrument of the kind, that is of simple and inexpensive construction and wherein the bubble glass is readily adjustable to accurately locate the plane of the bubble between indicating lines of the glass and parallel with planes of the body of the instrument, whereby whenever the plane of the bubble is located between the indicating lines, the planes of the body that are parallel therewith are also horizontal. A further object is to provide an instrument of the kind having one or more bubble tubes that may be readily and accurately adjusted therein to adapt the instrument for convenient and accurate use for either leveling or plumbing or both combined. |
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