US Patent: 13,456
|
Wrench
Dale's Adjustable Reversible Ratchet-Wrench
|
|
Patentee:
|
|
| John D. Dale (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Aug. 21, 1855 |
|
Patent Pictures:
|
|
John D. Dale patent August 21, 1955 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The ratchet head contains adjustable jaws. The jaw adjustment is made by helical threads actuated by protruding knobs. The wrench is reversed by removing and reversing the ratchet head structure. |
|
