Abstract: A manually actuable keyboard switch is provided having two opposite relieved openings in its base portion so that when it is inserted into an aperture in a keyboard switch retainer having two tabs outwardly extending and depending from opposite sidewalls of the aperture, the tabs spring into their original positions and within said relieved openings to hold said keyboard switch therein.

Abstract: A fitting component for mounting in a piece of furniture for receiving a hinge or the like. A generally cylindrical fitting component with a central opening for receiving the hinge and a pair of opposed inclined openings, with a locking element positioned in each inclined opening. Each locking element includes a cam section and is rotatable from a first position within the circumferential outline of the fitting component into a second position in which the cam section projects beyond the fitting component circumference for engaging the piece of furniture and anchoring the fitting component therein.

Abstract: The snap-in mounting means includes a ring-like retainer member disposed in an annular groove provided near the outer end of an elongated bushing which extends from a switch frame member on a switch base of an electrical toggle switch assembly and pivotally supports a toggle lever for actuating switch contacts housed in the switch base. The retainer member is radially compressible and expandable in the bushing groove between a normally expanded position where its outer dimension is larger than the dimension of the mounting hole in a support panel on which a switch assembly is to be mounted and a compressed position where it can pass through the mounting hole.As the bushing is initially inserted into the mounting hole from the rear of the panel during mounting, a portion of the retainer member engages the rim of the mounting hole and it is cammed thereby to the compressed position inside the groove.

Abstract: An apparatus for detachably mounting an electrical assembly unit to a supporting frame comprises a rotatable threaded rod mounted on the supporting frame and extending in the direction along which the electrical unit is moved to be mounted or detached. Pressing means is mounted on the threaded rod movably in the axial direction thereof. Stop means is fixedly provided on the electrical unit in such position to be engaged by the pressing means. By rotating the threaded rod in one direction, the stop means is forcefully engaged with the pressing means, whereby the electrical unit is moved to the tightly clamped position. The rotation of the threaded rod in the other direction causes the movement of the pressing means in the opposite direction, whereby the stop and hence the electrical assembly unit are moved to the removed or detached position under the pressing force of the engaged pressing means.

Abstract: An electric load research device includes an enclosure having a pulse data recorder and an adjustable meter mounting arrangement for attaching an impulse sending electric meter. The meter is attachable in different rotated positions within the research device enclosure for connecting the device at a utility customer's meter socket in different orientations to avoid adjacent obstructions.

Abstract: A mount for attaching a device such as a multiple switch within a hole in a panel. A first part has a lip for laying upon the front of the panel and also a pair of spaced hook arms. A second part is attached to the device behind the panel and has an opening for receiving the hook arms. These resiliently enter the opening in the second part and hold the device securely but removably to the panel. Screws or tools are not required. Deformable ears on the second part bear against the back of the panel to secure the assembly, and the ear structure accommodates a range of panel thicknesses.

Abstract: An electric box assembly is proportioned to be inserted into a panel opening and be retained therein. The assembly includes a discontinuous ring member that can be spread apart from an intermediate relaxed position and inserted through the panel opening, and then compressed to telescopically insert the ring member in the panel opening. The ring member has an outwardly extending flange for engagement with the outer surface of the panel, and an inwardly directed first cam means. The assembly also includes an outlet box member adapted to be positioned within the ring member and locked thereto. The outlet box member has an outwardly extending flange for engagement with the inner surface of the panel, and an outwardly directed second cam means which engages the first cam means when the outlet box member is rotated relative to the ring member.

Abstract: A means is disclosed for holding an instrument having a knob, in a projected operative position from an instrument panel of a vehicle. The instrument holding means comprises at least one projection, a plurality of bolts screwed into each projection. The bolts have shank portions, respectively, which extend in parallel with each other. A flange is secured to the instrument. Springs mounted around the shank portions are compressed to bias the flange into abutting engagement with the projections.

Abstract: Speaker mounting apparatus for front mounting a speaker to a panel of an automobile or recreational vehicle, including a base containing an opening for the speaker cone support and a peripheral flange containing recesses into which are snapped the tabs of a retainer ring which holds a speaker cover which decoratively covers the speaker and the mounting hardware. The base can be independently mounted to the panel and the speaker mounted to mounting posts. Alernatively, single screws can be used to simultaneously attach both the speaker and the housing to the panel.

Abstract: An electrical connector assembly adapted to be removably secured to a supporting mounting plate and featuring mounting clip spring adjustments to accommodate variations in mounting plate thickness. Mounting clips at each end of the assembly are each provided with a horizontal flange having slightly downturned ends adapted to make spring action engagement with one surface of a mounting plate. Each clip also has a blade adapted for insertion into an access slot of the mounting plate, the blade having deflectable shoulders for engaging the opposite surface of the mounting plate. Mounting plate thickness variations may thus be accommodated by the spring action of both the flange ends and the shoulders as the mounting plate is gripped therebetween.

Abstract: An electrical toggle switch assembly adapted for mounting from the rear of a bulkhead or support panel includes a bushing which pivotally supports an actuating lever and is inserted into a mounting hole in the panel. Secured on the outer peripheral surface of the bushing is a retainer made from an oriented fiber material including a plurality of short, relatively stiff, normally straight fibers which slant downwardly at an acute angle, preferably less than 45.degree., and normally extend outwardly from the bushing beyond the inner periphery of the panel mounting hole. As the bushing is pressed through the mounting hole, the fibers are deflected inwardly and a portion thereafter spring back to their normally extended position and grip the front of the panel in the area surrounding the mounting hole to hold the switch assembly on the panel.

Abstract: A wiring device is disclosed of the type having a dielectric housing portion into which the individual conductors of a multi-conductor cable are electrically connected. The housing portion is encircled by a mounting bracket suitable for stud or bracket mounting and convertible to wallboard mounting by, first removing a frangible finger portion of the bracket and then assembling the finger portion over a corner portion of the bracket by a threaded fastener. The wiring device is then inserted in a wallboard opening from the front side. The fastener is turned and the finger is pivoted on the fastener until it projects outwardly of the wiring device. Continued turning of the fastener advances the finger therealong into gripped engagement on the back side of the wallboard, mounting the wiring device securely to the wallboard.