Abstract: An intaglio printing press is disclosed employing cantilevered press rollers which can be easily removed and replaced, and which are supported to apply high uniform printing pressure to a substrate web. The rollers are each mounted on a spherical bearing permitting them to cant such that their axes remain parallel. One roller shaft is fixed to a frame and the other is carried by deflectable slides carried by the frame. The high printing pressure is achieved by shifting one shaft by driving the slides with hydraulic rams against adjustable stops formed by movable wedges.

Abstract: A frame member, or bearing block, for supporting bearings for two or more parallel shafts includes two spaced bearing receiving bores and a heat barrier slot. The heat barrier slot includes a transverse segment which extends between the two bearing receiving bores and longitudinal segments which extend outwardly beyond the centers of at least one of the bores. The bearing block can be provided with three or more bores for supporting three or more parallel rolls. In the latter case the heat barrier slot includes a center section of Y-shaped configuration including transverse segments disposed between each pair of bores and endwise segments extending outwardly beyond the center of each bore.

Abstract: A cut off, cross perforator or scoring cylinder having a quick relese mounting for a cross-cutting or perforating blade is disclosed, hereafter called cylinder. The blade is mounted in a longitudinal groove in the periphery of the cylinder. It is held in place against a side wall of the groove by means of a retaining bar which is disposed within the groove. The retaining bar is normally urged against the blade by compression springs. In order to change blades, the retaining bar is pivoted away from the blade by means of an operating lever having pins insertable in openings in the outer wall of the retaining bar. This frees the blade for removal and enables insertion of a new blade. Endwise clamps are provided with resilient pads interposed between the clamps and the retaining bar to support the retaining bar against dislodgement while permitting pivotal movement thereof.

Abstract: A plurality of consecutively numbered sheets or parcels of paper sheets such as, by way of example, snapout forms or the like are consecutively deposited onto the upper reach of a conveyor whereby the leading edge of each subsequent form is inserted beneath the trailing portion of the preceding form whereby an underlap-echelon relationship of the succeeding individual forms is provided, and wherein the forms are numbered consecutively and forwardly with the lowest numbered sheet foremost and on top of the sheets or forms on the conveyor.

Abstract: The rotational speed of the roll supporting shaft of a differential driven rewinder-unwinder is controlled whereby to substantially eliminate the generation of heat by utilizing a variable speed variable torque, regenerative motor-type drive in conjunction with a regenerative, multi-quadrant D.C. control. Current is generated and returned to the power lines during a part of each rewinding or unwinding cycle, thereby conserving energy.