| US Patent: 413,972 
 | 
| Auger | 
| 
| Patentee: |  |
 | Henry L. Shaler (exact or similar names) - Deep River, CT |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
 | 
| Patent Dates: |  
| Applied: | Feb. 18, 1889 |  
| Granted: | Oct. 29, 1889 |  USPTO (New site tip)
 Google Patents
 Report data errors or omissions to steward 
                        Jeff Joslin (dm)
 
 | 
| 
| Description: |  | The cutting lip and spur is conventional on one side of this bit. There is no spur on the opposite side, and the cutting lip is of a distinct gouge shape on its outer portion. The idea is to divide the chips, reducing the resistance usually associated with the presence of a spur. |  |