US Patent: 271,549
|
| Carriage Wrench
|
|
Patentee:
|
|
| David True (exact or similar names) - Salisbury, VT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
May 12, 1882 |
| Granted: |
Jan. 30, 1883 |
|
Patent Pictures:
|
|
David True patent January 30, 1883 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The socket has springs on all four sides to grasp the nut; the balls on the handle ends provide momentum for "spinner" action and a broad striking surface for breaking the nut loose and final tightening. A plunger in the center will release the nut from the springs' grasp. See also no. 291,961 and successive True patents. |
|
