| 摘要 |
991,105. Releasable fastenings. H. HEER, [trading as H. HEER & CIE.]. April 14, 1964 [April 19, 1963], No. 15372/64. Headings E2A and E2B. [Also in Division H2] A suspension device for perforated sheet metal cable troughing 9 comprises a supporting and fixing plate 1 over which cross two metal tapes 2, 3, each having a row of holes along its entire length. Members 8 have hooked ends which engage in slots in the side walls of the troughing and they are fastened to the ends of tape 3 by bolts which pass through holes in the tape and through adjustment slots 8<SP>1</SP> in the members. The ends of tape 2 are passed through slots in the bottom of the troughing and through slots in a crossbeam 10 underneath. A transverse pin 11 is pushed through a hole in each end of tape 2 and bears against the underside of the crossbeam, being retained longitudinally by sidewalls 12. Transverse stop pins 13 lie beside the lateral ends of tape 2. Two sections of troughing may be joined together by clasps 14 passing through slots in the troughing and in the crossbeam (Fig. 3). Arrangements of slots in the troughing at a T-junction and at. a bend are also described (Figs. 4 and 5, not shown). |
