| US Patent: 132,421 
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| Improvement in Carpenters' Gauges Split-shaft Mortise Gage
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| Patentee: |  |
 | Justus A. Traut (exact or similar names) - New Britain, CT |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Oct. 22, 1872 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Ralph Brendler
 
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| Description: |  | This patent marks the first appearance of prolific Stanley
	 inventor Justus Traut in the world of marking gages. This
	 particular patent covers the brass "gib" used to protect the arm
	 from the retaining screw, as well as the new mehod of
	 constructing mortise gages with a split shaft and captive slider.
	 Both of these patented ideas were used on Stanley tools for over
	 80 years, and the brass shoe is still in use on many gages to
	 this day. |  |