US Patent: 187,288
|
Ratchet Wrench
|
Patentee:
|
|
Edwin A. Leland (exact or similar names) - New York, NY |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Sep. 26, 1876 |
Granted: |
Feb. 13, 1877 |
Patent Pictures:
|
|
Edwin A. Leland Pat. February 13, 1877 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Stan Schulz
|
Description: |
There are ratchet teeth in a ring on the jaw and face plate on the handle. There is a chamber on the "back" side of the handle with compressible material such as rubber. The screw which attaches the wrench head to the handle bears on a washer which can compress this springy material, allowing a ratchet action between the handle and jaw. |
|