Clamping frame for making rectangular frames, particularly picture frames
US4211391A · kind A · utility
Inventor
Key dates
| Filing date | Jun 13, 1979 |
| Grant date | Jul 8, 1980 |
| Priority date | — |
| Expiry date | Jun 13, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B11/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In the manufacture of frames, particularly wooden frames, the glued faces have to be pressed together along the bevelled cuts. For this purpose a clamping frame is suggested which comprises a closed rectangular clamping frame consisting of a first frame portion (10) consisting of two limbs (10a, 10b) at right-angles to each other and a second frame portion (16) consisting of two limbs (16a, 16b) at right-angles to each other. The second frame portion (16) is displaceable relatively to the first frame portion (10) and the limbs (16a, 16b) of the second frame portion (16) project outwardly beyond the limbs (10a, 10b) of the first frame portion (10). On the outside of the limbs (10a, 10b) of the first frame portion and parallel thereto there are pull rods (18) which intersect at the corner of the first frame portion (10) and engage the projecting limb sections of the second frame portion (16). Clamps (22) can be applied to the sections of the limbs of the second frame portion (16) that project beyond the limbs of the first frame portion (10) as well as to the pull rods (18), which clamps are supported on the outside of the limbs of the first frame portion (10) and with which the secon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.