Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Means joining flexible indefinite length or endless bodies...
Patent
1974-07-17
1976-02-03
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Means joining flexible indefinite length or endless bodies...
156556, 156559, B31F 500, B65H 1900, B65H 6902, G03D 1504
Patent
active
039363457
ABSTRACT:
A method and apparatus are disclosed for welding a plurality of flexible, elongated members, such as thermoplastic members, at their respective end points to form a frame. One-half of the members are arranged in receptacles in a holder with all the members being in a generally U-shaped configuration and in side-by-side relationship to one another. The remaining members are arranged in receptacles in a second holder which lies adjacent the first holder, with all members in this holder also being in a generally U-shaped configuration with one member partially surrounding all the other members which are situated in side-by-side relationship to one another within the U-shaped mouth of the member surrounding them. Each end portion of the members in one holder lies in the same horizontal plane as the end portion of the member in the other holder to which it is to be welded, and all members protrude outwardly from their respective holder and are pointed at the members to which they are to be welded at an angle corresponding to the internal angle at the corners of the frame which is to be formed. After at least one of the holders is moved to bring the end portions of one set of members in close proximity to the corresponding end portions in the other holder, the respective end portions are welded to one another by suitable welding apparatus, such as a welding mirror, to form a unitary frame.
REFERENCES:
patent: 2972371 (1961-02-01), Hermann et al.
patent: 3709757 (1973-01-01), Sturley
Bielomatik Leuze & Co.
Powell William A.
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