Abstract: A supporting body (1) for an axially moving body such as a conveyor belt, a cable or a stepless escalator, comprising a roller (3) rotatable about a shaft (2) for the support of the body and at least a first support (4) in which the shaft of the roller is mounted for carrying the roller, wherein a second support is provided, wherein the first support and the second support (5) are designed to cooperate in carrying the roller, wherein the second support is fixedly mounted and the first support can, in the moving body's direction of movement, be fixedly coupled with the second support, while in a plane perpendicular to this direction of movement, the first support is rotatable about a pivoting point located on a contact surface shared by the roller and the body to be supported by the roller.

Abstract: The invention relates to a hoisting frame which can be connected on the upper side to hoisting cables and has means on the underside for picking up a secondary hoisting frame. The hoisting frame is adjustable between a retracted position, in which its transverse dimension is equal to that of the secondary hoisting frame, and an extended position. The pick-up means are adapted to pick up a single secondary hoisting frame in the retracted position and to pick up two mutually adjacent secondary hoisting frames in the extended position.