US 2193536 A
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M rch 12, 1940. A M R R 2,193,536
TELEPHONE SET Filed May 29. 1937 1-1 I M W W Gttorneg Patented Mar. 12, 1940 i v was j UNITED STATES mm 1 serie i f TELEPHONE srrr g AlexanderMurdoch, J12, Philadelphia Pa assigner to Radio Corporation of Americaa corporation of Delaware 1 Application May 29, 1937, Serial No. 145,466
1 Claim. (Cl. 179 1i6) This invention relates to telephone sets, particularly to hand sets, and has special reference to the provision of improvements in cradles or" I shock-proof combined mount .andswitch for teleill phone hand-sets.
Other objects and advantages will be apparent and the inventionitself will be best understood by reference to the following specification and to the accompanying'drawing, wherein:
Figure 1 is a side elevational View, .partly .in section, of a telephone cradle constructed in accordance with the principle of the invention and showing a hand-set in its idle position thereon, and. Figure 2 is a sectional elevation taken on the line 2-4 of Fig. 1, with the hand-set removed. Like reference characters represent the same or duplicate parts in both figures.
In the drawing, 5 designates a portionof a wall or panel, for example, a portion of the instrument panel of an automobile or airplane The equipped with two-wayradio apparatus. mount or cradle of the invention is preferably constituted of a fiat strip of metal 2 bent in the form of a U and affixed at its base 3, asby bolts b, to the panel I.'
The arms of the U, which are designated 4 and 1 preferably are of duplicate U-shaped contour.
The open ends of springs i3 and l are rounded as shown at r, and terminate on opposite sides of the slot or bifurcation a (see So, Fig. 2), which accommodates the'handle h of the set T.
The rounded ends 1' of the'springs normally extend inwardly beyondthe side edges of the the U of cradle 2, for eXample'adjacent'theslots a, so that it is necessary to apply some force I to the handle it of the set T in seating it within, or withdrawing it from, its idle or mounted po- I sition. The force inwardly directed against handle h by the rounded terminal edges 1" of springs 6 and l, and incident to the spring action of the material of which members 6 and 'l'are constituted, serves to'clamp the handle it in the slots at of the oppositely located arms 4 and 5 and to maintain it against displacement irrespective; of the angle] which the panel may form with the" horizontal. T
The cradle likewise carries a switch it which is preferably mounted, as by screws 8, within the U on arm This switch is provided with a spring plunger H which extends into the bifurcated or slotted area a of arm 5 when thehandset is oil its cradle and is urged inwardly, to electrically. disconnect the hand-set from its associated apparatus, when the set is returned to its cradle. The cable shown at C will be unequipment (not shown) supported, for example,
behind the panel l. 'If desired, such conventional 5 apparatus or some of it may be mounted within sWitchl t and between or upon the arms 4-55.
The hand telephone shown in Fig. 1 is of coni ventional design and includes a mouthpiece M and earpiece E at opposite ends'oi the handle 30 or body portion 71. When the hand-set forms an element in a radio-telephone system using different listening and talking frequencies, a
press-to-talk button. 5 may be. provided,'con-' venient to the operators fingers 'on the backof the earpiece casing The invention is susceptible of various modifications. It is to-be understood, therefore, that the foregoing is to be interpreted asillustrative and not-in a limiting sense. 1
What is claimed. is: A telephone mounting comprising a fiat strip of U-shape contour, the armsoi said U containing oppositely located slots adapted to; receive the handle of a telephone hand-set, a switch 5 mounted on one of said arms and positioned to be actuated by the insertion and withdrawal of said handle therefrom, and spring means mounted on said 'arrn-outof the path of the operators hand for removably' maintaining said handle in contact with said switch.
ALEXANDER MURDOCI-I, JR.