US Patent: 1,361,923
|
| Wrench
|
|
Patentee:
|
|
| William M. Stovall (exact or similar names) - Clallam Bay, WA |
|
|
Patent Dates:
|
| Applied: |
Mar. 05, 1920 |
| Granted: |
Dec. 14, 1920 |
|
Patent Pictures:
[
1 | 2
]
|
|
William M. Stovall patent Dec. 14, 1920 (edited image) |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| A cam on the handle provides force to close the jaws. The patent includes provision for alternate interchangeable jaw forms, etc. Corresponding Canadian patent CA-227,047 was granted with effective date Dec. 12, 1922.
Stovall produced a simpler form of cam action self-adjusting wrench bearing this patent date; production information is only known from markings on an example. |
|
')){kind=link}
){kind=link}