US Patent: 2,206,941 
 | 
| Reamer 
 | 
| 
	        Patentee:
		   |  
|
 | Stuart A. Cogsdill (exact or similar names) - Detroit, Wayne County, MI |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
 | 
| 
        Patent Dates:
         |  
| Applied: | 
Feb. 28, 1938 | 
 
| Granted: | 
Jul. 09, 1940 | 
 
 
 
USPTO (New site tip) Google Patents 
			Report data errors or omissions to steward 
                        Joel Havens "Vintage Machinery" entry for Cogsdill Twist Drill Co. 
 | 
| 
        Description: |  
| Claim:
 In a cutting tool, a body having an annular series of resilient longitudinal tongues, blades upon said tongues, a collar having wedge elements adapted to extend between and engage adjacent tongues, and a threaded member engaging said collar and adjustable to adjust said collar axially of said body. |  
  |