US Patent: 1,551,763
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Wrench
Pipe or Nut Wrench With Gripping Action
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Patentee:
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| Raymond C. Morris (exact or similar names) - Kalamazoo, MI |
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Patent Dates:
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| Applied: |
Feb. 07, 1924 |
| Granted: |
Sep. 01, 1925 |
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Patent Pictures:
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Raymond C. Morris patent September 1, 1925 |
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Stan Schulz
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Description: |
| The pivoted gripping surface on the movable jaw has a curved toothed surface.
Compare this one to R.A. Mull's Oct. 25, 1925 patent (no. 1,557,864).
MANUFACTURER ATTRIBUTION: After comparing examples of both the HOLLAND STEEL CORP PATENT 1925 (later STEELGRIP) pipe wrench, and the PAT. PEND BULL DOG GRIPS - NEVER SLIPS BULL DOG WRENCH CO. BENTON HARBOR MICH pipe wrench (announced in spring 1924), it seems likely this patent applies to the HOLLAND STEEL product. |
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