| 摘要 |
945,924. Welding by pressure. CHICAGO UNITED PRODUCTS CO. Inc. June 22, 1962 [March 12, 1962], No. 24185/62. Heading B3R. [Also in Division E2] A series of studs 30 is welded by a gang of welding heads 28 to a motor car body 20 while the latter is in the unfinished state, for later cooperation with fastener elements (see Division E2) which are frictionally held within a trim strip by means of brackets welded thereto. Each welding head comprises four resilient fingers 29. In another arrangement, Figs. 8-10 (not shown), fastener elements consisting of concentric helical springs are resiliently retained by end portions against flanges of a trim strip which is then fastened to a motor car body by hook-like elements which are welded to the body. |
