US Patent: 489,822
|
| Wrench
|
|
Patentee:
|
|
| George Washington Martin (exact or similar names) - Titusville, FL |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Oct. 13, 1892 |
| Granted: |
Jan. 10, 1893 |
|
Patent Pictures:
|
|
George Washington Martin patent January 10, 1893 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| A rigid hook jaw, with a sliding toothed wedge forcing a work piece against a gripping block that inserts in the hook portion. The gripping block can be configured with an angled toothed face suitable for a pipe wrench, or a straight face suitable for a nut wrench.
Martin called his February 23, 12897 patent (no. 577,770) an improvement in certain regards. |
|
