Abstract: An adjustment indicator for rotary spindles, comprising a hollow and at least partly transparent handwheel for operating the rotary spindle, and an indicator device disposed in the handwheel, the indicator device providing a reading which is controlled as a function of the revolutions of the rotary spindle.

Abstract: A vehicle seat that is adjustable in accordance with the weight of the occupant and that includes a frame on which are mounted scissor guides and a spring and damping unit that enables the scissor guides and seat to be adjustably moved to a desired position within a limited travel.

Abstract: A seat, particularly a vehicle seat, has a support element and a seat element which is located above the support element. An arrangement is provided for raising and lowering the seat element relative to the support element. This arrangement includes a lever having one end that is shiftably and arrestably mounted, and another end. A substantially U-shaped bracket has an open side facing away from the lever and the bracket is pivotally connected to the lever and has one arm that is pivoted to one of the elements, and another arm to which a strap is pivoted having a length substantially corresponding to that of the other arm and being connected to the other element and pivoted to the other arm, respectively.