Abstract: A gripper mechanism having at least two vacuum grippers which are horizontally displaceable and fixable along a cross strut of the gripper mechanism. The gripper mechanism is vertically movable up and down and includes a blow pipe which extends over the width of the cross strut and from which an air stream is expelled. The air stream presses the photoresist-free reverse side of the photoresist film to be held and transported against the vacuum grippers. As soon as the vacuum grippers are subjected to a vacuum, the photoresist film is held and transported downwardly. On the upper side of the blow pipe are arranged stop screws which come into contact upon elevation of the gripper mechanism with the underside of vertically displaceable fastening elements, to which a cutting bar with a cutting groove is fastened. Upon elevation of the gripper mechanism, the cutting bar is taken up with it, the photoresist film being raised by the taper of the cutting bar from the suction plate which is under a vacuum.

Abstract: Disclosed is a control device and process for aligning, in the running direction, an endless belt. The device comprises a lifting cylinder with a ram which is retracted or extended as a result of switching signals received from microswitches via a control circuit. The device further includes a pivotal wing which is pivoted by the extending ram in the running direction A of the belt, and a deflecting roller having an axle, the ends of which are mounted in the eyeparts of eyebolts. During pivoting, the wing presses one eyebolt, resting at its bolt end against the front side of the wing, in the running direction A of the belt. The axle, mounted at its axle end, with a certain play in the eyepart of the other positionally fixed eyebolt, is pivoted as a result. As soon as the belt runs out of alignment, that is to say deviates from the running direction A, one of the belt edges actuates the associated microswitch and consequently the lifting cylinder.

Abstract: Disclosed is a cutting device which is horizontally displaceable by means of double-acting guide cylinders and is vertically movable along vertical guide rods by means of a positioning device 10. Before cutting, the cutting device is brought into the preselected position by the positioning device. The heated cutting wire of the cutting device is connected to a current source via sliding contacts resting against ball bearings, over which the cutting wire is guided. The circuit of the current source contains a microswitch, the switch lug of which comes to rest against a plate during the forward movement of the cutting device and switches over the microswitch, thus terminating the heating of the cutting wire. This takes place at the moment when a cutting wire, after cutting through a material guided vertically over a cutting bar, penetrates into a notch in the cutting bar.