US Patent: 518,086
|
| Monkey Wrench
|
|
Patentee:
|
|
| William R. Wilbur (exact or similar names) - Cleveland, OH |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Dec. 04, 1893 |
| Granted: |
Apr. 10, 1894 |
|
Patent Pictures:
|
|
William R. Wilbur patent April 10, 1894 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The patented feature is the two-piece shank. The upper portion of the shank includes the head and fixed jaw, with the movable jaw, adjusting screw and bolster sliding on to the upper portion of the shank. The base of the upper portion is a threaded stub. The lower portion of the shank includes a threaded socket, and a tapering handle shaft with a threaded end. |
|
