US Patent: 361,728
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| Plumb Level
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Patentee:
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| Frederick Sonntag (exact or similar names) - Fort Atkinson, Jefferson County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 01, 1886 |
| Granted: |
Apr. 26, 1887 |
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Joel Havens
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Description: |
| Claim:
My invention relates to improvements in plumbing-rules to be used in adjusting plumb- ro lines, angles, levels, &c., in which a pendulum-needle is used instead of a vial of spirits or cord and ball and my object is, first, to provide against the action of the wind upon the mechanism; second, adapting it to adjustment for various angles with all the precision that a perpendicular line can he adjusted by the old "plumb line and ball, with no wind to disturb. |
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