US Patent: 1,432,011
|
| Slot Cutting Machine
|
|
Patentee:
|
|
| Edwin J. Armstrong (exact or similar names) - Erie, PA |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Sep. 22, 1920 |
| Granted: |
Oct. 17, 1922 |
|
Patent Pictures:
|
|
Edwin J. Armstrong patent October 17, 1922 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The machine is to mill a slot for the base of the sliding jaw for adjustable wrenches of the "Crescent" type. The round portion of the slot is formed by drilling. The patent describes the work holder, the feeding mechanism, the reciprocating tool-holder, and the automated interaction of the parts. The patent has multiple drawings of details of the machine, and extensive details of its workings. |
|
