US Patent: 102,390
|
Plumber's Wrench
Improvement in Pipe and Bolt-Wrenches
|
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Apr. 26, 1870 |
|
Patent Pictures:
|
|
Frey & Macardle Pat. Apr. 26, 1870 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The jaw has a rocking cam for gripping pipe. The cam is shaped so that the diameter of a pipe is parallel to the gripping surface. The adjusting slip-nut has interrupted threads to allow for both quick and fine adjustment. |
|
