US Patent: 1,729,640
|
| Wrench
|
|
Patentee:
|
|
| Charles Vallone (exact or similar names) - Buffalo, NY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 11, 1925 |
| Granted: |
Oct. 01, 1929 |
|
Patent Pictures:
|
|
Charles Vallone patent Oct. 1, 1929 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The patent is for an adjusting "worm" for wrenches that has small indents on one end that ride against spring-loaded "ratchet teeth" to form an adjustment lock. The patent is shown applied to both adjustable "open end" and "auto monkey wrench" types of adjustable wrenches. |
|
