US Patent: 389,400
|
| Wrench
|
|
Patentee:
|
|
| Edward C. Mead (exact or similar names) - Elkhart, IN |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 29, 1888 |
| Granted: |
Sep. 11, 1888 |
|
Patent Pictures:
|
|
Edward C. Mead patent September 11, 1888 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| A screw-adjusted sliding block adjusts the size of the opening. The adjusting screw has perimeter holes for a nail or wire to serve as a lever handle. A stiff spring is inserted between the sliding jaw and adjusting screw. The spring is intended to exert constant pressure and keep the jaws in contact with the work piece. The specifications describe this as a tap wrench. |
|
