Abstract: A vacuum lifting device with a contractible and extensible suction tube and a suction cup, which device is provided with a valve house having an interior that is communicating with the interior of the suction tube. The valve house has an aperture for inlet of air and a valve device for regulating the air inlet by a valve body that is actuated by a rotary cam disc which is rotatable together with a rotary hand grip, which cam disc has a periphery designed to continuously displace the valve body an adjustable distance essentially perpendicular to the turning axis of the cam disc in dependence on the turning angle of the hand grip. A steep increase of the cam disc radius makes possible at need a stepwise displacement of the valve body in addition to the regulated distance.

Abstract: The invention relates to a vacuum ejector (1) is provided that includes a nozzle (4) for directing a jet of compressed air onto the center of a plate (5) which functions to deflect the compressed-air jet radially outwards at an angle of 90° in all directions, past a plurality of apertures (12) provided in the plate at a determined distance from the center (11) thereof. Each aperture (12) communicates with an associated suction cup (2) through the medium of a respective duct (14), for conducting the subpressure generated in the apertures (12) to respective suction cups (2).

Abstract: The invention relates to a lifting carriage comprising a frame member (2), with a set of wheels (1) provided on the frame member and arranged to enable the movement of the lifting carriage on a base, a carrying member (13), arranged on the frame member (2) and extending upwardly therefrom in a direction away from said base, and a lifting member (14), arranged to receive an object to be lifted and displaceably provided on the carrying member (13). Furthermore, the frame member comprises two sidepieces (3, 4) connected to each other. The sidepieces (3, 4) are connected to each other by at least a first beam member (5) on which the carrying member (13) is arranged and advantageously also by a second beam member (6) connected to and arranged behind the carrying member (13).