Abstract: Device for throughflow measurement of gases or liquids according to the suspension principle, with a suspension element in the housing and special design of the housing, the attached indicator device, and the switch, said switch being activated by the suspension element when the predetermined throughflow volume is reached. The reverse side of the housing (1) of the flowmeter displays a contact surface for attachment rails; these rails connect the switch to the housing by way of a cavity between the rails, into which a T-shaped rail, attached to a base plate on a switch part, is inserted. The housing (19) of the indicator device (4) is positioned to the side of the housing (1) of the flowmeter and is screwed to the latter and secured to the flowmeter housing (1) with two attachments collars (18) inserted into a slot between the housing wall and the attachment rails.

Abstract: A switch housing for a control device which includes both automatically thermally operable and manually operable switches. The housing is adapted to be positioned on a wall or other surface and can be secured to a single or double electrical junction wall box. The housing includes an integral mounting bracket to support one or more switches outwardly of a base panel, and a supporting bracket to support a bimetallic element. A cover is provided to enclose the housing and includes apertures through which the several switches and controls can extend.

Abstract: A rectangular switch body has a plurality of terminals of round flexible wire rods and is provided at its four outer side surfaces with engagement members. Various kinds of cross-sectionally C-shaped brackets of a resilient metal plate provided with engagement members are prepared. An insert mount having a mount frame with at least three side walls engageable with at least three side surfaces of the switch body and engagement members is prepared. By using one of the brackets or the insert mount, the switch body is mounted on a printing wiring board in a desired direction or on a panel.

Abstract: A modular vacuum interrupter for controlling the application of single or polyphase electrical power to single or polyphase electrical apparatus includes a rigid base, a plurality of identical vacuum switch modules, an operating mechanism and cover. The base includes a pair of inclined surfaces that define a pair of tracks for capturing and retaining the plurality of vacuum switch modules and the cover therebetween and in contact with the base. Each of the vacuum switch modules includes first and second electrical terminals, an enclosed vacuum switch having a pair of electrical contacts in an evacuated environment, an operating plunger for moving contact into engagement with a stationary contact, a return spring for biasing the operating plunger and vacuum contacts to an OPEN position, a movable flexible shunt for electrically interconnecting the first terminal to the movable contact and an internally threaded insulating cap for isolating the vacuum switches mounted in adjacent vacuum switch modules.

Abstract: Each of a pair of low voltage, residential type circuit breaker housings includes a molded case, a mating cover, a spring clip, and a conductive contact member. The clip, generally U-shaped, has a stiff outer leg with smoothly formed edges, a base, and an inner leg forming two flat springs joined by a flat leg coupled to the base. The flat leg is case supported to stabilize the base and outer leg. The member has an outer conductive leg so formed that when the clip's stiff outer leg's inner surface opposes a connecting surface thereof, and spaced therefrom, a bus bar blade is receivable. The contact member includes a step having a riser in one direction joining at a roundly formed right angle with one end of its leg (the roundly formed angle and smoothly formed edges serving as lead-in contours for a bus bar blade) and a tread along a second orthogonally oriented direction, which tread rests on one of the flat springs.

Abstract: An attachment for incorporating discrete electrical components in a membrane switch panel. The component is attached to a base member which in turn is secured to the membrane switch panel, either mechanically or adhesively. At least one pair of holes is cut in the membrane and spacer of the membrane switch panel. The leads of the electrical component extend through these holes and into contact with the electrical circuit on the substrate of the switch panel.

Abstract: Device for fastening built-in wiring equipment, the bottom of the wiring equipment having a fixed projection for engaging behind one L-shaped extension of an inverted hat-profile-shaped support channel, and a movable projection for snapping behind another L-shaped extension thereof, including a support plate having a device integral therewith for mounting a bus bar to hold a circuit breaker and a first L-shaped extension engageable with a projection of the wiring equipment, and a support strip attachable to the support plate and having a second L-shaped extension integral therewith, the first and second extensions forming together an inverted hat-profile-shaped support channel.

Abstract: Self adhering tape switch or ribbon switch assembly is provided including a tape switch strip. A layer of deformable material bonds to the underside of said tape switch. A layer of pressure sensitive adhesive is applied to the underside of the deformable material layer. A removable strip of paper adheres to the underside of the pressure sensitive adhesive. It is notched to permit coiling.

Abstract: A circuit breaker comprising a molded case formed by two half-cases abutting each other. A snap on mounting clip embraces the half-cases. The clip comprises a central portion and arms on either side thereof embracing the half-cases. The arms include locking protrusions which are received in holes formed in the half-cases. The protrusions are deformed toward the embraced half-case. The arms include end portions flared outwardly of the case. The arms are angled to permit the arms to spring freely as they are pushed over the half-cases. The case includes an upper wall, and the central portion is bowed downwardly so as to be concave relative to said upper wall of said case. The upper wall includes an opening and the central portion of the clip includes a thread receiving opening. The openings in the wall and in the clip are aligned to receive the shank of a threaded fastener for mounting the circuit breaker to a panel.

Abstract: A keyboard has domed switch elements and complementary switch contacts which are mounted in an inexpensive housing formed of a very thin, flexible, electrically insulating sheet material. The housing is shaped by vacuum-forming to have flexible webs of the sheet material extending between relatively more rigid cup-shaped embossments formed in the sheet material. The webs and cupped embossments engage the domed switch elements and complementary contacts and normally hold the switch elements in open circuit positions relative to the contacts. However, flexing of the housing webs permits the domed switch elements to be selectively deflected to closed circuit positions engaging the contacts. Additional rigid embossments are formed in the thin housing material and are located over the domed elements to assist in deflecting the elements to their closed circuit positions. A keytop is also shaped from a thin sheet material by vacuum-forming to have flexible webs which extend between key embossments.

Abstract: A rotary thumbwheel switch assembly has a switch module including a translucent light ring for indicating positions of the rotary thumbwheel. The ring is illuminated from within by a light emitting diode which can be snap-mounted in place in the center of the translucent ring. The switch module comprises a thumbwheel to which contact brush sets can be easily secured by a spring biased tab. The switch module can be combined with a separable bezel. The switch module can be mounted from either side of a front panel, and can be connected to circuit assemblies housed by the panel prior to the insertion of the bezel. The bezel secures the switch modules to each other and to the panel. A kit comprising the separable elements of the illuminating diode, the bezel and the switch modules is described. A method for installing the separable elements includes the steps of inserting the modules from the front of the housing panel for testing each module's connection with circuit assemblies prior to installing the bezel.

Abstract: A circuit breaker includes a recessed zone in the breaker housing for accommodating the bus clip of a mating circuit breaker when the breakers are mounted adjacent one to another on a panelboard. An arcuate groove of varying depths formed in the breaker housing communicates at its lower end with the recessed zone to permit the bus clip of the mating breaker to be moved from the recessed zone and along the arcuate groove, such that the mating breaker can be readily removed from, or installed into, the panelboard.

Abstract: A keyboard assembly includes a U-shaped carrier member and a plurality of key members connected thereon by resiliently yieldable legs having detent portions which engage cooperating recesses provided in the bottom wall of the U-shaped carrier member with snap action. Each key member has an upper and a lower housing port which are snap-fastened to each other, and an actuating shaft axially movable to energize an electrical component mounted below the carrier member. A locking member is also provided to lock the shaft in a down actuating position.

Abstract: An improved switch assembly incorporating a plurality of sliding switch subassemblies which each move between two switching positions by means of a contact slider. Each switch subassembly is provided with a pair of contact elements which are each provided with spaced extensions that are arranged to permit such contact elements to be coplanar interiorly of the housing of the switch assembly and to be extensible from the housing exteriorly thereof so as to be engagable with a carrier plate and solderable thereto. The individual switch subassemblies are adjustable without difficulty with the switch assembly engaged with such carrier plate.

Abstract: A hydraulic cylinder with heads on each end of a cylinder body utilizes a tie rod of hexagonal cross section to positively prevent relative rotation with an attached magnetic switch. The switch is engaged along the tie rod about a section in which the diametral dimension is at a relative minimum and has mated flattened portions which cooperate with flattened surfaces on the tie rod.

Abstract: A flexible, self-biasing switching element is disclosed herein for closing a circuit by flexing the element from an initial non-contacting position to a second contacting position and for opening the circuit by releasing the element and permitting it to return to a non-contacting position from the contacting position. The element includes a flexible non-conductive substrate having on one side thereof a plurality of spaced conductive contacts or areas. A two-sided pressure sensitive adhesive film for mounting the element is die cut and applied to the substrate in a manner so as to surround the conductive contact areas. The adhesive film provides an insulating medium between the contact points so as to prevent transmission of current between the contact points.

Abstract: An integrally formed sensing switch for use with a seat belt retractor assembly and having a housing portion provided with an integrally hinged seat belt follower push arm plate adapted for pivotal movement in association therewith. The push arm plate has a fixed actuator pin extension on the lower surface thereof which selectively extends into the housing in response to movement of the push arm plate and depresses a spring leaf contact element provided in the housing portion so as to selectively open and close an electrical sensing circuit made thus responsive to spool condition as webbing is extended or webbing is retracted. The upper surface of the push arm plate engages the outer surface of seat belt webbing coiled on the retractor spool and is biased to move therewith as the seat belt pays into and out of the retractor assembly.

Abstract: An electrical switch housing which may be mounted on the control shaft of a gas valve of a household gas appliance in order to control an ignition circuit which ignites the gas that is controlled by the valve is provided. The electrical switch housing has a central aperture which holds a rotatable operating member that has an aperture in it which receives the control shaft of the valve. The switch housing may have two, three or four mounting posts which extend normal to it and are positioned relative to one another so that they prevent the housing of the switch from rotating when the control shaft is rotated.

Abstract: A mounting strap for mounting an electrical wiring device, such as a switch, having apertures at both ends for receiving mounting screws. The apertures have resilient lips which engage the threaded portion of the screws to prevent the free movement thereof. The mounting strap is adapted to fit on a mounting box with the electrical wiring device located within the mounting box.