US Patent: 23,798
|
Wrench
Improved Double-Acting Screw and Rack Wrench.
|
|
Patentee:
|
|
| George C. Taft (exact or similar names) - Worcester, MA |
|
|
Patent Dates:
|
| Granted: |
Apr. 26, 1859 |
|
Patent Pictures:
|
|
George C. Taft patent April 26, 1859 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Taft describes this as an improvement on his May 25, 1858 patent 20,379. The double threading of the adjusting nut would accelerate the adjustment speed, and it travels on a protected shaft extending from the ferule so there is no extended "tail" as in 20,379.
Known examples have no visible markings. The patent (along with 20,379 and 23,725 was "licensed" to Daniel Hawkins, Jr. in 1859. |
|
