Improvements in the fixing of plasterboard or similar lining for ceilings, walls andthe like

摘要

538,811. Walls, ceilings &c. MOWLEM & CO., Ltd., J., and HORN. J. T. March 9, 1940, No. 4467. [Class 20 (iv)] [Also in Group VII] Plasterboard lining is secured to concrete and metal structures by bifurcated rivets which are carried in holes in members supporting or embedded in the concrete or in clips attached to metal members of the structure. The plasterboard is drilled for the passage of the rivets and may be pressed into position by the use of a tool, Fig. 13 (not shown) comprising a feltcovered block carried by a handle. The rivets are spread by a tool shown in Fig. 10, which comprises a bifurcated spring pressed plunger l embracing the rivet and pressed against a washer carried. thereon, and a chisel like member k which is pressed into the rivet to spread it.