US Patent: 421,062
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| Rod or Pipe Wrench
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Patentee:
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| Henry Zuber (exact or similar names) - Norwich, KS |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 19, 1889 |
| Granted: |
Feb. 11, 1890 |
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Patent Pictures:
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Henry Zuber patent February 11, 1890 |
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Stan Schulz
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Description: |
| A spring-loaded pawl on a sliding jaw engages rack teeth on a pivoting rack bar. This arrangement approximates the effect of a movable hook jaw for an adjustable pipe wrench. |
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