Abstract: The stencil emulsion coating apparatus of the present invention includes a screen frame holder and cooperating troughs which coat opposite sides of the screen by running upwardly there against. All motion is provided mechanically without use of hydraulics or pneumatics, with the required motions being electronically controlled in known manner. Each end of each trough is provided with a warpage sensor which senses pressure between the screen and leading trough edge and adjusts trough position in areas of warpage to accommodate same.

Abstract: A switch guard assembly for preventing accidental actuation of a switch, the assembly including a switch plate and a box-shaped member mounted on the switch plate and having a front wall formed with a surface disposed substantially parallel to the switch plate, and the front wall being closed against access by the fingers of an operator's hand through the front wall to a switch actuator extending out of the switch plate, the box-shaped member having at least one fully open side for affording access to the switch actuator by the fingers of an operator's hand.