US Patent: 346,706
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Micrometer Caliper Handle
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Patentee:
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Merrick M. Barnes (exact or similar names) - Boston, MA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Nov. 25, 1885 |
Granted: |
Aug. 03, 1886 |
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Joel Havens
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Description: |
My invention relates to improvements in that class of micrometer-calipers in which the measuring tool in use is held vertically by a portion of the fingers of one hand of the operator, leaving the thumb and index-finger free to operate the head of the calipering screw and it has for its object the improved construction of a device to facilitate its use in this manner. In the drawings, Figure 1 is a side view of a hand micrometer-caliper embodying my present improvement. Fig. 2 is a plan view of the device in vented, showing the handle folded. |
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