US Patent: 444,779
|
| Adjustable Pipe Wrench
|
|
Patentee:
|
|
| Clarence V. Greenamyer (exact or similar names) - San Francisco, CA |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Sep. 09, 1890 |
| Granted: |
Jan. 13, 1891 |
|
Patent Pictures:
|
|
Clarence V. Greenamyer patent January 13, 1891 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Adjustable pivot point for the hook jaw is the size adjustment. The hook jaw consists of paired pieces with a "bit" near the tip which provides additional gripping surface and compensation for work pieces of smaller diameter. Shares a double cam-faced head with Greenamyer's patent nos. 329,642 and 444,777. The bench clamp in the drawing is Greenamyer's parallel patent (no. 444,778). |
|
