US2471569A - Radio receiving set - Google Patents

Description

May 31, 1949. M. HAY

RADIO RECEIVING SET Filed Feb. 7. 1946 56 A INVENTOR MALCOLM HAY Patcnted May 3l, 1949 UNITED s'rA'rEs Partitur orrica BADIQ RECEIVING SET Malcolm Hay, Canaiohn-ic, N. Y.

Application February 7, 1946, Serial No. 648.041

(Cl. S12-7) 4 Claims.

, 1 In radio receiving sets having self-contained loop antennae that have directional properties,

Vthe set manufacturers recommend, once the station is tuned in, that the cabinet be rotated on its base back and forth through a quarter of a circle, and left at the position where the desired station is received with maximum volume.

The principal object of the present invention is to provide means which is simple in construction and convenient in use for thus rotating the cabinet of a radio receiving set.

Another of the objects of the invention is to provide novel and improved means of the character indicated.

The invention is illustrated, by way of example. in the acconpanying drawings, in which:

Figure 1 is a front elevation of a radio receiving set embodying the features of the invention in their preferred form;

Fig. 2 is a detail sectional elevation, on an enlarged scale, taken on the line 2-2 of Fig. i, certain parts being removed from the interior of the set for the sake of clearness;

Fig. 3 is a similar view but with certain operating parts shown in section; and

Fig. 4 is a detail sectional plan view taken substantially on the line 4-4 of Fig. 3.

The radio receiving set illustrated in the drawings is provided with the usual cabinet 2 having a bottom wall or base l, supporting members l, dial 8, control knobs I0, and amplifier I2.

In accordance with the present invention, there is provided a supplemental support il which comprises a disk that is rotatably mounted on the lower end of a post i8. The disk is thus mounted on the post by means of a screw Il which extends loosely through an aperture in the disk and is screw-threaded into the lower end of the post It. and washers at opposite sides of the disk. The

underside of the supplemental disk has a cutaway portion 22 which receives the lower end of the screw i8 and the lower washer 2l, so that these parts do not project below the bottom surface of the disk.

The upper portion of the post i8 telescopes into a tubular bracket member 2l, the upper end of which is provided with a flange 2i which issecured by screws 28 to the underside of a, partition 30 in the cabinet.

The upper part of the post I6 is provided with rack teeth 32 which are operatively engaged by a pinion 24 which extends through apertures in the tubular member 2l, the pinion being formed on a shaft 3B. A washer 36 is secured by a screw to one end of the pinion Il, and is frictionally held against the side of the tubular member 2| by means of a spring I0 coiled about the pinion and interposed between the tubular member 34 and a lcollar Il on the shaft II, thus preventing looseness of parts. The shaft 3l extends outwardly through an aperture in the front wall of the cabinet and has secured on the outer end thereof an operating knob 4l;

Normally the supplemental support Il is received in a recess '40 in the underside of the bottom wall or base I of the cabinet, and when the supplemental support is in this position the cabinet rests on the supporting members 6.

When it is desired to use the supplemental support il, the knob Il is turned in a clockwise direction which through the pinion 3l and the rack 32 moves the post il downwardly until the supplemental support engages the table or other support upon which the cabinet rests, and then during the continued movement of the knob the cabinet is raised sufficiently to cause the members 6 to be free of the table, and the cabinet to be supported by the supplemental support. When the cabinet is thus raised into this position, it is held from downward movement by the action of the spring J8. the inner end I! of which engages a tooth of the pinion Il and there is suilicient play between the pinion and the walls of the apertures in the tubular member 24 to cause the pinion to bind against the walls of the apertures and thus hold the pinion from turning.

It will be noted that when the cabinet is thus supported by the supplemental support Il, it may be easily and conveniently turned back and forth and left in the position where the desired station is received with maximum volume.

The cabinet may be lowered and said support received in the recess 4I by turning the knob Il in a counter-clockwise direction, the support being held in the position thus moved by the binding action above described of the spring 38. When the supplemental support is thus retracted the cabinet again rests on the members 6, and the supplemental support is out of the way so as not to interfere while the set is being carried from place to place or packed for shipment.

It will be apparent that my improved device is simplein construction and convenient in use, and that it is particularly adapted for the cabinets of radio receiving sets of the character indicated.

' What I claim is:

l. The combination of a cabinet provided with a bottom wall having a recess in the underside thereof, the cabinet being normally supported by said bottom wall, a supplemental support rotatably connected with the cabinet and normally received in said recess, a manually operable member, means operable by said member for raising and lowering the cabinet with relation to said supplemental support to cause the cabinet to be respectively supported by said support and bottom wall, and means cooperating with said member and said rst mentioned means for maintaining the cabinet in a desired position Awith relation to said support when said member is released.

2. In a radio receiving set having a cabinet provided with asupporting base, a supplemental support arranged beneath the cabinet and rotatably connected therewith, a member manually zol the upper member with said cabinet, a manually operable member, a device operable by said member for relatively moving said telescoping members axially to raise and lower the cabinet with relation to said supplemental support to cause the cabinet to be respectively supported by said supplemental support and said base, and means oooperating with said device tor maintaining the cabinet ina desired position with relation to said support when said member is released.y

i. A structurev according to claim 3 in which the means for relatively moving the telescoping members axially comprises a rack carried by one of said members, and a pinion operatively engaging said rack and rotatable in opposite directions by means of said manually operable member.

REFERENCES CITED The following references are of record in the filel of this patent:

UNTTED STATES PATENTS Number y Name Date 859,011 Raymond et al July 2,1907 1,652,219 Thomas Dec. 13, 1927 1 1,710,465 Acosta Apr. 23, 1929 2,047,516 Lutsche A'. July 14, 1936

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