US Patent: 1,168,844
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Wrench
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Patentee:
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John J. Bartenstein (exact or similar names) - Cleveland, OH |
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Patent Dates:
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Applied: |
May 31, 1913 |
Granted: |
Jan. 18, 1916 |
Patent Pictures:
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John J. Bartenstein Patent January 18, 1916. Vlchek No. 2 spanner from Vernon Nail collection. |
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Stan Schulz
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Description: |
The hook spanner could be produced with a square hook jaw for rectangular nut, or a round peg jaw for circular "nuts" with round holes in the periphery (like water pump packing nuts, bearing race adjustments, etc.) It uses a spring and rack teeth for quick adjustment. |
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