US Patent: 464,167
|
| Chain Wrench
|
|
Patentee:
|
|
| Abel C. Whittier (exact or similar names) - Boston, MA |
| USPTO Classifications: |
| 81/69 |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jun. 03, 1891 |
| Granted: |
Dec. 01, 1891 |
|
Patent Pictures:
|
|
Abel C. Whittier patent December 1, 1891 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The wrench uses "link" chain; the "shoe" contacting the pipe is smooth, and the handle and chain are in line. The grip is provided by the contact of all the chain links rather than relying on a set of gripping teeth. |
|
