US Patent: 1,440,381
|
| Adjustable Wrench
|
|
Patentee:
|
|
| Otto E. Edstrom (exact or similar names) - Cary, IL |
|
|
Patent Dates:
|
| Applied: |
Dec. 27, 1920 |
| Granted: |
Jan. 02, 1923 |
|
Patent Pictures:
[
1 | 2
]
|
|
Otto E. Edstrom patent January 2, 1923 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| A spring connection between the frame and movable jaw tends to close the jaw. A sliding pawl with an angled slot holds the adjustment. The pawl is moved by a sliding button.
A 1921 ad in Automobile Trade Journal shows this wrench produced by Edstrom at Cary, IL; an early 1921 notice for it gives Jessop & Thompson of Chicago as the maker.
Also used in conjunction with Edstrom's June 19, 1923 patent (no. 1,459,583) for the EDSTROM MILWAUKEE WIS PAT 1-2-23 & 6-9-23 quick adjust wrench.
Cited as a reference in 2,724,301. |
|
){kind=link}
){kind=link}