US1905539A - Control apparatus for radio receiving instruments - Google Patents

Description

April 25, 1933.

J. E. WHITE CONTROL APPARATUS FOR RADIO RECEIVING INSTRUMENTS Filed Oct. 1, 1930 mmmmim mmlil'mlfilui INVENTOR WH/ TE BY ATTORNEY JAY, E. WHITE,

for. connecting the operating members with line 4-4 of Patented Apr. 25, 1933 UNITED STATES nErRoIT, MICHIGAN, A coEroEA'rIoNoF DELAWARE 1 or nE'rEoIr, MICHIGAN, ASSIGNoR To CHRYSLER coEro arIonfoE 7 CONTROLVIAPPABATUS FOR nanro RECEIVING iNSTRUMENTS Application filed October 1, 1930.. Serial No. 485,802.

The main objects of the invention are to provide control apparatus which has its operating members arranged in a compact unit; to provide a compact operating unit for radlo control apparatus which is particularly adapted for installation on the instrument board of a vehicle; to provide flexible means the controlapparatus; and to provide means of this kind which can be'readily conditioned so as to, adapt the apparatus for installation in vehicles ,having instrument boards of various constructions and inclina tions and which are locatedat diversed distances from the receiving set.

An illustrative embodiment ofimy inven tion is shown in inwhichz Fig. 1 is a fragmentary vertical section of avehicle body showing a radio receiving set which embodies my improved control apparatus. V p w I Fig. 2'is a fragmentary vertical section of a radioreceiving set showingvthe control apparatus in=detail. 7 v f f' Fig. 8 is a transverse vertical sectiontaken on the line 33 of Fig.52.

Fig. 4 is a vertical section Fig. 2. V n Fig; 5 is a side elevation of an operating the accompanying drawing,

taken on the unit for a radio'co'ntrol apparatus which ems vice, such as a condenseror .variometer including a stationary part 9 and a rotatable part 10, is mounted in the casing in spaced relation to the rheostatfi. For the purpose of illustration, these two instruments are shown to be out of alinement, but it is intended that they be understood to be substantially in alinement with each other. a v The rotatable an attaching member 42.

part 10 of the device has ashaft 11 on which a toothed pulley or sprocket, 12 is mounted. Journaled in the casing 1 is a shaft 13 having a toothed pulley'or sprocket 14 thereon aroundwwhich a belt 15risdisposed. The belt 15 has apertures for receiving the teeth of the plleys 12 and 14 audit also ex tends around the latter pulley. I f s Mounted on'the instrument board 16of the vehicle is a disc-shapedsupp'ort 17 which has aftubular boss 18 extending inwardly through an aperturein the instrument board. A channels'hapedbracketlQhavingadownwardlyextending side through whichspaced apertures 21 and 22 are formed is mounted on the outer periphery of the boss 18 which is threaded internally 1 so as to receive an externally threaded bearing member23 having; an enlarged, head 24. ywhich-the bracket 19is clamped in place. I j A tubularv stem 25 extending throughthe instrument board 16 is. journalediin the bear: ing member 23 and has a knob 26 on itsouter end and a worm 27 on its inner end portion on which a nut 28 is threaded. flexible cable, 29 is secured at. one .end tojthe nut 28 and at its other end to a block .30 which is.

carried by the belt 15.. Thisjceible extends through a flexibletube 31 which is secured at its forward extremity ,inthe aperture 220f the bracket 19 by an attaching member 32. The inner end of the flexible tubeSl is secured between the jaws of a clamp 34 ,mountedon a support 35 in the casing I p Concentrically arranged in the tubular member 25 isan operating element which includes a shiftable stem 36 having a knob 37 on its outerend. .The' inner end portion of r the stem 36 is attached to a flexible cable 38 which extends centrallythrough theworm 27 and through the aperture 21 in the bracket 19. The cable 38 is attached to the sliding contact? of the rheostat'by a screw 39 and the main portions of this, cable are also inclosed within a flexible tubing 40 which is secured at its inner end to the support 8 of the sliding contact by .an attaching member {l1 and is f astened at its outer end to the, downwardly extending side 20 of the bracket 19 by A cup-shaped dial 43 is journaled on the periphery of the support 17 and is provided.

lated by rotating the knob 26 and stem 25 so as to move the nut 28 linearally. This movement of the nut shifts the cable 29 forwardly and rearwardly which. in' turn actuates the belt 15 turning the rotatable part of the tun- 26 ing device. The'rheostat'5 is regulated by shifting the knob 37 and'the stem inwardly and outwardly with" respect'to the tubular stem 25. In this construction, the operating elements by which the rheostat and tuning device are selectively regulated are combined in acompact un'itwhich may be conveniently mounted on the instrument board of'a vehicle. The flexible cables 29 and 38 by which the elements of the operating unit are connected with the control apparatus of the tuning device and rheostat, respectively, may be" made of any suitable length so as to conform with the construction of the particular vehicle for which the apparatus-is intended. These flexible connecting members allow the compact control unit to be arranged in misalignment relative tolthe receiving set and they permit regulatingapparatus of substantial uniform design to be'conveniently installed in vehicles having instrument boards of di versed inclinations.

In the form of my'invention shown in Fig. 5-the rheostat regulating mechanism is identi cal to that shown in FigsQl to 4 inclusive. It includes aknob 37' on a stem 36which is slidably mounted in a rotatable control element 26. The rotatable element 26 includes a worm 51 which has both advance and return threads 52 and 53, respectively. Threaded on the worm 51 is a'nut 28' to which a cable 29 is attached. The cable 29" extends through an aperture in the downwardly extending side 20 of a bracket 19' which is mounted on the instrument board 16, in the manner described above, by a bearing member having'a head 24. This cable operates a belt, not shown, of a tuning devicein the manner described above. Rotatably mounted at 54,0n the face of the instrument board 16' is a dial 55 having, external teeth 56 on its periphery which mesh with a pinion 57 that is rigidly secured to the worm 51. The instrument board 16 has a slot 58 registering with the dial and witha light bulb 49 which is supported on the bracket 19. With this form of my inventiomthe nut 28 is, shifted forwardly and rearwardly by continuous rotation of the knob 26 and .worm 51 in a single direction. This action causes the tuning device to be rotatedin one direction to the full extent of its capacity and then to be rotated in the other direction. The shiftable'operating element regulates the rheostat in the manner described in connection with the Figs. 1 to 4 inclusive. q Although but two specific embodiments of this invention have herein been shown and described, it will-be understood that various changes in the size, shape and arrangement of parts maybe'made without departing from the spirit of my invention and it is not my intentionto limit its scope other than b theterm'of the appended claims.

I claim:

-1. Ina radio receiving apparatus includ ing a rheostat and a tuning element, control apparatus for regulating said rheostat and tuning element including a pair of concentric operating'members, oneof said members being rotatably 'adjustable'jand the other being slidably adjustable independently of said rotatably adjustable member. I

2. .In a radio receiving apparatus including a rheostat and a tuning element,c0ntrol apparatus including a 7 slidably adjustable operating member for regulating said rheo stat and "a concentric'rotatably adjustable operating lmemberoperable independently of said slidably adjustable member for regulating'csaid tuning element. V

3. In a radioreceiving apparatus including a pair of variableinstruments, control apparatus for selectively regulating said instruments including a pairof concentric operating members, one of said members being shii'table, and the other being rotatable independently' ofeach other. v

4. In a radio receiving apparatus including a pair of variable instruments, control apparatus for said instruments including a pair of flexible shiftab'le members, and a manual operating unit including a shiftable element for actuating one of said flexible members'and a concentric rotatable element supporting said shiftable element for actuating the other flexible member.

5. In a radio receiving apparatus including a pair of variable instruments, control apparatus for said instruments includin'gxa pair of flexible shiftable members, a manual operating unit including a shiftable element for actuating one of said flexible members and a'concentric rotatable element supporting said shirtable element for actuating the other flexible member, and indicating means operable by said rotatable element for disclosing the setting of the instrument which said rotatable 'member regulates.

6. In a radio receiving apparatus including a pair of variable instruments, control apparatus for said instruments including a pair of shiftable members, a nut on one of said shiftable members, a rotatable operating element having a worm threaded in said nut for actuating the latter shiftable member, and a second operating, element shiftably mounted on said rotatable operating element and attached to the other shiftable member for actuating the same.

7 In a radio receiving apparatus including a pair of variable instruments, control apparatus for said instruments including a pair of shiftable members, a nut on one of said shiftable members a rotatable operating element, a worm on said rotatable operating element threaded in said nut and having advance and return threads whereby saidnut, and the shiftable member upon which it is mounted are shifted in diametrically opposite directions by continuous rotation of said rotatable operating element, andan 1 operating element shiftably mounted on, said rotatable operating element and attached to the other shift-able member for actuating the same.

8. In a radio receiving apparatus includ- QTKradio receiving setincluding a cas-j ing having a pair of variable instruments therein, control apparatus for said instruments located in said casing, a support spaced I from said casing, an operating unit mounted on said support including a rotatable manually operable element and a shiftable manually operable element, the latter element being shiftably mounted on said rotatable element, a flexible cable extending into said casing and connected at one end with the control apparatus of one instrument and at its other end with said shiftable operating element, means on the rotatable elementfor converting rotary movement thereof to lineal movement, and a flexible cable secured at onevend to said means and at its other end to the control apparatus of the other instrument.

JAY E. WHITE. I

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