Abstract: A substitute toggle switch cover plate has an elongated opening within which is reciprocatively captured an actuating member having a recessed carrier portion at the inside adapted to loosely enclose the control lever of an electrical toggle switch, and a slide knob at the outside for moving the carrier member together with the toggle switch lever between "on" and "off" positions.

Abstract: A shipping, storage and handling device for commercial magnetic tape furnished by the manufacturer as windings convoluted about the periphery of flat annular cores or spools, comprising a unit, such units being referred to as "pancakes" in the trade. The device comprises a flat annular base portion having a plurality of upstanding pins and a like plurality of through openings, the pins and openings being symmetrically arranged about a common concentric circle so that, upon vertical stacking of the devices, the pins of each lower device will be received within the openings of the next successive device.