US Patent: 428,193
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Balance Wheel Pliers and Calipers
Improvements in Combined Calipers and Balance-Wheel Truing-Pliers
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Patentee:
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| George B. Widdifield (exact or similar names) - Columbia City, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 12, 1889 |
| Granted: |
May 20, 1890 |
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Patent Pictures:
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George B. Widdifield patent May 20, 1890 |
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Stan Schulz
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Description: |
| The adjustable sockets in the jaws are to hold a watch balance-wheel by its pivots. The swinging latch on the handle combined with the rack teeth on the other handle hold the pliers closed. The spring holds the latch in engagement with the rack teeth. |
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