US Patent: 321,967
|
| Device for Making Dies for Forming Auger Heads
|
|
Patentee:
|
|
| Frank W. Hastings (exact or similar names) - Wallingford, CT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jan. 19, 1885 |
| Granted: |
Jul. 14, 1885 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Russ Allen.
|
|
Description: |
| Punch is used to create the dies used for forming auger tips instead of the dies being made using cutting tools at the hands of a die-sinker. |
|