US Patent: 26,468
|
| Wrench
|
|
Patentee:
|
|
| A. J. Bell (exact or similar names) - Greensburg, KY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Dec. 20, 1859 |
|
Patent Pictures:
|
|
A.J. Bell Pat. Dec. 30, 1859 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
BELL*S PATENT WRENCH (Flickr)
|
|
Description: |
| A jointed lever with teeth to engage rack teeth on the back side of the main shank and attached wedge serves both as a handle to move the adjustable jaw and as the mechanism to hold the adjustment.
A February 1860 SCIENTIFIC AMERICAN writeup describes the operation. |
|
