US Patent: 608,628
|
Wrench
|
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Mar. 28, 1898 |
Granted: |
Aug. 09, 1898 |
Patent Pictures:
|
|
Ole Wigtil patent August 9, 1898 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Stan Schulz
|
Description: |
A screw-adjusted pressure plate in the movable jaw forces teeth inside the movable jaw to engage with rack teeth on the main shank. There are nut and pipe jaws on both the fixed and jaw faces. |
|