US Patent: 207,441
|
| Picture-Frame Clamp
|
|
Patentee:
|
|
| Edward N. Porter (exact or similar names) - Hardwick, Caledonia County, VT |
|
|
Patent Dates:
|
| Applied: |
Jun. 12, 1878 |
| Granted: |
Aug. 27, 1878 |
|
Patent Pictures:
[
1 | 2
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Porter & Burnham
|
|
Description: |
| Abstract:
The object of my invention is to provide a vise for holding picture-frames while their mortise and tenon, miter, or other joints are being pinned, bradded, or otherwise fastened together. My improved device is made of metal, and is so arranged that its jaws can be instantly find perfectly adjusted to moldings of any width or length, and then by means of a cam-lever the corners of the frame are so firmly held that there is no possibility of any movement in the operation of fastening the moldings, nor is there any necessity to readjust :he vise until the fastening of each side of the joint is completed, thereby securing perfect work in the simplest, easiest, and cheapest manner.
Claim:
The adjustable plate B, controlled by screw h, which moves in slot l, in combination with cam e and sliding bar d. |
|
){kind=link}
){kind=link}