Abstract: A rinse tank for rinsing residue from fine apertures in a moving strip of material includes a chamber having an elongated slot. The slot has a length sufficient to span the aperture pattern. Fluid is injected into the chamber and exits through the slot as a fluid curtain substantially normal to one side of the strip. Fluid is also passed over the other side of the strip substantially parallel to the fluid curtain. The combined fluid actions cause the fluid to flow into the small apertures to remove any residue from the apertures.

Abstract: A seal arrangement for retaining liquid in a chamber at a level above some of the sides of the chamber includes two pairs of rollers. The rollers of each pair contact one another at a height above the low sides of the chamber. The rollers in each pair are arranged at different levels so that the rollers contact one another at a point higher than the height of the low sides of the chamber. Flexible seal members extend from the bottom of the chamber to a point above the center of each of the bottom rollers. Pressure of liquid in the chamber biases the flexible seal members against the rollers to prevent liquid from leaking along the bottom of the rollers. Restrictions in the outlets of the chamber establish the liquid level at a height which is above the contact point of the pairs of rollers so that both sides of a strip of material passing between the pairs of rollers are washed with the liquid.

Abstract: A device for shearing, welding and aligning two sheets of thin material includes two segmented tables arranged on opposite sides of a vertically moveably welding head. Substantially parallel shears are equally spaced on opposite sides of the welding head. The sheets of material are arranged so that their uneven ends lie between the welding head and the respective shears. Clamping bars are arranged to clamp the sheets of material snugly against moveable segments within each of the segmented tables. The uneven ends are clamped in position and then sheared off. The moveable segments and the clamping bars move the two sheets of material inwardly toward the welding head. The distance that the moveable segments move slightly exceeds the distance between the welding head and respective shears so that the sheared ends overlap a preselected distance. A deflector arranged in the proximity of one of the shears assures that one of the sheets overlaps the other sheet.

Abstract: A chase for photographically producing images on both sides of shadow mask material includes a fixed suspension member and a moveable suspension member which is vertically and horizontally moveable relative to the fixed suspension member in the plane of the moveable suspension member. Support members are suspended from the suspension members through solid flexible hinges. Frames are indivdually supported by the support members and include openings for receiving photographic plates. Pivoting means are coupled to the frames whereby the frames are held in a substantially parallel relationship during exposure of the shadow mask material and are separable by flexure of the hinges during changing of the mask material. The images on the plates are alignable by selectively moving the moveable suspension member vertically or horizontally.

Abstract: An externally adjustable seal and bearing structure includes an external and an internal tube. The tubes overlap within the container and are radially separated by a seal and a bearing. The bearing permits the tubes to oscillate with respect to one another. The bearing is in two parts which are separated by the seal. The bearing and the seal are arranged between a retainer and a stop plate. An adjustment nut external of the container is threaded on to the external tube and tightening of the nut longitudinally moves the external tube with respect to the internal tube. The stop plate and retainer act against the bearing parts to compress and radially expand the seal between the two tubes.

Abstract: A device for separating shadow masks from a strip of base material includes a conveyor upon which the strip moves. Two loading plates are arranged above the conveyor and press the strip against the conveyor. The loading plates are separated by a space which is angularly disposed with respect to the axis of the conveyor. A tensioned wire is arranged in the space and a magnet raises a fully etched portion of the shadow mask over the tensioned wire as the shadow mask enters the space. The tensioned wire thus shears the partially etched shadow mask from the strip of base material.