In a table-type telephone subset all of the substantial individual parts such as the base plate, the housing, the cradle-switch, the number-switch, the electric bell or ringer and the bell domes, as well as the base plate of the number switch and the terminal box are provided with hooks shaped thereto, and with corresponding cutouts or indentations, and are assembled in accordance with the known "snap-in" technique.
A mounting for a dial in a telephone set comprises two sets of interengaging brackets, support brackets extending up from the bottom surface of the telephone set base and mounting brackets extending down from the dial assembly. Each support bracket has spaced guide surfaces and a latch member having a downwardly facing latch surface. Each mounting bracket has guide surfaces for cooperation with the guide surfaces on the support brackets and a recess into which a latch member can engage. At least one latch member is resiliently deflectable. The dial assembly is mounted by aligning the guide surfaces and pushing down on the dial assembly, the latch members snapping into the recesses. No access to screws or other fastenings is required. One of the support brackets can be integral with a side wall of the base.
PCT No. PCT/SE 78/00061 Sec. 371 Date June 24, 1979 Sec. 102(e) Date May 31, 1979 PCT Filed Oct. 18, 1978 PCT Pub. No. W079/00227 PCT Pub. Date May 3, 1979 A fastening arrangement for one or more circuit cards in a telephone instrument having a housing comprising a base plate with walls around the perimeter of the housing extending substantially perpendicular to the base plate and a rear casing which has a planar surface extending perpendicular to the base plate and directed towards the front of the instrument. Supporting elements are mounted on the planar surface and have the form of projections with grooves to receive a circuit card. The front wall of the base plate carries supporting elements for the circuit cards.
The body for a telephone unit is designed to permit easy removal for maintenance and for initial assembly. The escutcheon plate which is a close fit to the dial is fitted in an oval hole which allows it to move on the body to clear the dial on removal of the telephone body.
A base-plate for a telephone set base has a bottom web or panel, with a wall extending upward around the panel for the majority of its periphery. At one side an inclined web extends inward and upward and a wall extends round the periphery of the web, with an aperture formed in the bottom panel coincident with the inclined web. The inclined web, and the wall around the web define a lower recess and an upper recess. A further recess in the bottom panel, closed on three sides and top and open on the fourth side provides access for modular plugs of the handset cord and line cord. Enclosed channels extend from the upper end and lower end to the further channel for passage of line and handset cords. A further enclosed channel extends from the lower recess to the channel from the upper end for alternate positioning of a short line cord in a wall mounting mode. Mounting means for a circuit board, hook switch and piezoceramic transducer are provided.
The present invention concerns a toy telephone or home intercom in which the electrical parts and connections are prefabricated into a self-contained unit which can be detachably mounted in a telephone case.
