US Patent: 109,913
|
Wrench
|
Patentee:
|
|
Christian Knisely (exact or similar names) - Chicago, IL |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Granted: |
Dec. 06, 1870 |
Patent Pictures:
|
|
Christian Knisely Pat. Dec. 6, 1870 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Stan Schulz
|
Description: |
The cam lever applies pressure on a set of plates inside the movable jaw to hold adjustment. The space between the plates can be shimmed to compensate for wear or tighten the grip. A screw on the back of the shank prevents the movable head from sliding off. |
|