US Patent: 239,437
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Folding Rule Joint
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Patentee:
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Conrad Bube (exact or similar names) - Hanover, Lower Saxony, Prussia, Germany |
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Patent Dates:
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Applied: |
Dec. 13, 1880 |
Granted: |
Mar. 29, 1881 |
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Joel Havens
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Description: |
Abstract:
My invention relates to that class of measuring-rules which are composed of two or more sections pivoted together and adapted to he folded one over the other; and it consists, principally, in means for locking the rule-sections together, either when extended or when folded.
Claim:
In a folding-rule joint, the combination of the section A, provided with a bearing-plate, C, having catches c' and transverse slots, the rule-section B, its bearing-plate D, provided with radial recesses d and the pivot-pin a'. |
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