US Patent: 104,426
|
Pipe-Tongs
Improvement in Wrenches for Screwing and Unscrewing Cylindric Bolts or Tubes
|
|
Patentee:
|
|
| Edward B. Clark (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Jun. 21, 1870 |
|
Patent Pictures:
|
|
Edward B. Clark Pat. June 21, 1870 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The patent is for the eccentric bolt with notched head and spring which forms the pivot for the tongs. Turning the bolt adjusts the size capacity of the tongs. |
|
