US Patent: 439,201
|
| Monkey Wrench
|
|
Patentee:
|
|
| Frank L. Smith (exact or similar names) - Blue Island, IL |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 28, 1890 |
| Granted: |
Oct. 28, 1890 |
|
Patent Pictures:
|
|
Frank L. Smith patent October 28, 1890 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Interrupted threads inside the adjusting sleeve allow for combined quick and screw-adjust. The ends of the threads are tapered to facilitate their engagement. The groove in the collar portion of the adjusting sleeve only extends part way around, to limit the motion.
The action is similar to that in patent no. 320,357. |
|
