US Patent: 270,741
|
| Pipe Wrench
|
|
Patentee:
|
|
| Friederich Cajar (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Dec. 01, 1882 |
| Granted: |
Jan. 16, 1883 |
|
Patent Pictures:
|
|
Friederich Cajar patent January 16, 1883 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The teeth on the handle move the the adjustable jaw as the handle is swung. The patent includes the slip-on jaw cover to enable the wrench to work with nuts as well as pipe. There is also a provision to use a locking pin to limit the range of movement, thereby adjusting the tool to a limited size range. |
|
