Abstract: The apparatus serves to weld together the two parts of a slide frame which is made of plastics material and consists of a base part and a cover part, and to align the welded frames on carrying and centering rods. The apparatus comprises two feed wells, from which tracks extend to an ultrasonic welding horn, and downwardly flaring two centering wells, which succeed the ultrasonic welding horn and are provided each with a plunger disposed above the track.

Abstract: A labeling machine wherein there is a picker reciprocably movable between a label magazine and a transfer position for transferring labels to a gripper assembly at the transfer position whereupon the gripper assembly takes the label from the picker and applies it to a container and wherein there is an adhesive pick-up roll supported in a container of adhesive and a transfer roll reciprocably movable in timed relation to the movement of the picker to transfer a coating of adhesive from the pick-up roll to the surface of the picker; characterized in that the transfer roll is a driven roll and is rotated while in contact with the pick-up roll at least one complete revolution, and further characterized in that while in contact with the surface of the picker is rotated no more than one complete revolution as it travels from one end of the picker surface to the other end thereof.

Abstract: A label applying turret having label support pads, a label marker and a pressing platen for pressing the label against the marker. The marker is mounted on the turret to rotate therewith and faces outwardly against the inwardly facing side of the label. In one embodiment a label gripping platen is aligned with the marker so that its action in gripping the label to the turret concurrently imposes die marking pressure on the label. In another embodiment a roller platen is mounted externally of the turret and presses the labels against the die marker.This application is a division of copending application Ser. No. 381,184 filed July 20, 1973, now U.S. Pat. No. 3,893,388, which was a continuation of copending application Ser. No. 223,204 filed Feb. 3, 1972, now abandoned.