Fabrication of ceiling slabs utilizes frame on which stretched cloth is fixed, cloth held at support periphery by pressure plate, lower plate tensions cloth and upper plate is applied to cloth

摘要

The ceiling slabs are constituted from a frame on which a stretched cloth (17) is fixed. A frame (1) ensures the holding of a support (15) for the cloth. The cloth is held at the periphery of the supports by a pressure plate (9). A lower movable plate (11) tensions the cloth and an upper plate (23) is applied to the cloth. An actuator (19) supported on an upper transverse crosspiece (7) operates the upper plate so that it can penetrate inside the pressure plate.