CA Patent: CA-7,502
|
| Improvements on Plough Clevises
|
|
Patentee:
|
|
| Clark Robinson (exact or similar names) - Eau Claire, WI |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Jun. 01, 1877 |
|
Patent Pictures:
|
|
Canadian patent 7502 - edited drawing |
CIPO Data
Report data errors or omissions to steward
Stan Schulz
Canadian patent 7502 in ESPACENET
|
|
Description: |
| The patent describes an "inner" clevis with notches that serve to set "side draft" in conjunction with a spur on the inner face of the "outer" clevis. The "outer" clevis also has a slot with notches, and a link with one flattened side which forms the "depth" adjustment. The form shown in the drawings includes a two-part mounting sleeve to attach the clevis to an iron plow beam.
Underlying U.S. patent 188,413 shows the design adapted to a wooden plow beam, and an example of that form is known. A further refinement of this design received U.S. patent 201,837. |
|
