| US Patent: 1,127,100 
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| Wrench | 
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| Patentee: |  |
 | Myer M. Shuster (exact or similar names) - Philadelphia, PA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Feb. 16, 1914 |  
| Granted: | Feb. 02, 1915 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Myer M. Shuster patent February 2, 1915 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The wrench is a screw-adjust with a spring to relax the jaw grip to enable a type of ratchet action. The auxiliary lever handle slides a stop against the adjusting worm, disabling the spring-tension feature. Marketed as the SHUSTER SPEED WRENCH. |  |