Portable apparatus for fabricating wooden trusses
US4174061A · kind A · utility
Inventor
Key dates
| Filing date | Jun 6, 1978 |
| Grant date | Nov 13, 1979 |
| Priority date | — |
| Expiry date | Jun 6, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S269/91
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable truss fabricating apparatus in the nature of a trailer enables convenient and expeditious manufacturing of wooden trusses on the job site. The use of dual articulated and counterbalanced booms on an elevated support structure of the apparatus with a conventional hydraulic C-clamp suspended by a cable from one boom places any joint on the truss in easy reach of the operator without shifting the truss lumber, and giving the operator complete freedom of movement without the burden of carrying the hydraulic C-clamp. The truss supporting bed of the apparatus includes both longitudinal and transverse extension members which are retracted during transport. Means to safely stow the dual boom structure and to stabilize the long support bed during transport are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.