US Patent: 24,190
|
| Wrench
|
|
Patentee:
|
|
| John W. Brewster (exact or similar names) - Stamford, NY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
May 31, 1859 |
|
Patent Pictures:
|
|
John W. Brewster patent May 31, 1859 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The wrench shank is six-sided; the sliding movable jaw has a slightly oblique hole, so that as pressure is applied to the jaw face, the sides of the hole bind against the sides of the wrench shank. A retaining pin keeps the jaw from sliding off the shank. |
|
