Abstract: The invention relates to a supporting device (14, 14?, 14?, 15, 15?, 15?) for the construction industry. Said device has a fixing element (14a, 15?a) which rests against a side wall (2a) and is fixed at a fixing point (FP) of the side wall (2a). Said device also has a cantilever (14b1, 14b2, 14c; 15?b1, 15?b2, 15?c-15?e) which is connected to the fixing element (14a, 15?a) and, when the fixing element (14a, 15?a) is in the fixed state, projects from the side wall (2a) such that a load element (10) can rest against a bearing point (AP) of a bearing element (14b1, 14b2; 15?b1, 15?b2) of the cantilever.

Abstract: The invention relates to a lowering system (10) for lowering ceiling formworks (70) during the removal of formworks of a building ceiling, comprising a reciprocating piston (14) and a support base (18), and a locking device, wherein the reciprocating piston (14) is slidably mounted in the support base (18), and can be pushed from an extended working position to a lowered position, and can be locked in the extended position by means of the locking device. The locking device has a pivot bearing and an eccentric lever (16), wherein the eccentric lever (16) is rotatably mounted in the pivot bearing, and the reciprocating piston (14) and the support base (18) are supported against each other in the working position by means of the eccentric lever (16).