| US Patent: 136,830 
 | 
| Improvement in brace-drills | 
| 
| Patentee: |  |
 | George Gibbs (exact or similar names) - Canton, OH |  
 
| USPTO Classifications: |  | 81/36 |  
 
 
 
 
 | 
| Patent Dates: |  
| Granted: | Mar. 18, 1873 |  
 
USPTO (New site tip)| Patent Pictures:
	      
	        [
			1 | 2
	        ] |  |  |  |  |  Google Patents
 Report data errors or omissions to steward 
                        Kirk Eppler
 
 | 
| 
| Description: |  | This invention is an addition to an ordinary brace to provide gearing. It required a second set of hands to hold the accessory while the first set of hands operated the brace. The one known example, pictured in the second photo, is equipped with a chuck made by Millers Falls Co. It is not known if this was manufactured in any quantity, and if so, by whom. |  |