US Patent: 794,170
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| Center Gauge
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Patentee:
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| John W. Fessler (exact or similar names) - New Castle, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 08, 1904 |
| Granted: |
Jul. 11, 1905 |
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Ralph Brendler
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Description: |
| This is a measuring rod consisting of two telescoping arms. The interesting feature here is that each arm is attached to a rack, and between the two racks is a pinion containing a marking point. It is designed such that as the arms are extended or contracted, the marking point will always be centered between the two ends. |
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