US Patent: 818,025
|
| Wrench
|
|
Patentee:
|
|
| Edwin A. Hardison (exact or similar names) - Bakersfield, CA |
| USPTO Classifications: |
| 81/69 |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jun. 19, 1905 |
| Granted: |
Apr. 17, 1906 |
|
Patent Pictures:
|
|
Edwin A. Hardison patent April 17, 1906 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The patent describes a wrench for oil well casing or other pipe, with a strap or chain connected to a gripping shoe, and a lever handle which serves both to tighten the band or chain, and to then turn the pipe.
This is one of two chain wrench patents issued April 17, 1906 and may be a patent connected to the BILLINGS AND SPENCER "Reversible" Chain Pipe Wrench "PAT APR. 17, 1906."
Patent no. 818,371 is the other chain wrench patent from April 17, 1906. It also includes features similar to some aspects of the BILLINGS AND SPENCER wrench. |
|
