US Patent: 1,034,303 
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| Sliding Jaw Wrench
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	        Patentee:
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 | Square S. Rogers (exact or similar names) - Roxbury, MA |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Apr. 26, 1912 | 
 
| Granted: | 
Jul. 30, 1912 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| A rotatable cam in the shank has a spur engaging a retractable pin on a compression spring. The cam has fine teeth that engage a rack on the sliding jaw, while the pin fits a series of holes in the same face of the sliding jaw. The holes are spaced at intervals matching standard nut sizes, while the rack teeth allow for finer intermediate adjustments. |  
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