Патент USA US2411891код для вставки
Dec. 3, 1946.` E H, OWENS 2,411,891 RADIO CONTROL APPARATUS Filed Aug. 19, 1943 2 Sheets-Sheet l INVENTOR FREEMAN H. OWENS BY Dec. 3, 1946. F. H. OWENS 2,411,891 RADIO CONTROL APPARATUS Filed Aug. 19, 1943 2 Sheets-Sheet 2 49 Tlï. _ 36Q_ 35 - .5’0 #a _ «Ã ~ „I ____-__ - \:,‘ n /5 1 leí 78! f l l l J J ,'47 d l I ,‘ ,2.a | , 24 L, ____ u ßf f@ Y 39 l ' . aw '- lI 7a' ' Ãó ` '7/ 0 4g, ó » 65 ¿7 _ ßß 7% _ ‘ .. . Gf" 45 ¿l ¿a , ’ „l“ \ n ` @ff ' 7. ¿i 7' ff ‘9 . 70| "7 52 75)’ _ i Tî E. 117 « ' _ ' ‘ » 4 INVENTOR FREEMAN H.owENs Bf Mm 2,411,891 Patented Dec. 3, 1946 UNITED STATES PATENT OFFICE 2,411,891 RADIO CONTROL'APPARATUS Freeman H. Owens, New York, N. Y. Application August 19, 1943, Serial No. 499,295 11 Claims. (Cl. Z50-20) 2 The invention here disclosed relates to mech anism for adjusting and controlling radio ap paratus. The several forms of the invention are divisions from inventions disclosed and claimed or more windings i9 wrapped about a strip of in sulating material Il, bent or otherwise formed into a ring, for receiving a magnetic core l2.A The latter is shown as engaged on and adjusted by a tubular screw i3 having a tuning knob i4 in `co-pending patent applications, Serial No. on the outer end of the same. 397,504, ñled June l0, 1941, Patent No. 2,337,568, The magnetic core is shown as held against issued December 28, 1943, Serial No. 450,449, ñled rotation by having a slotted portion l5 slidingly July 10, 1942, Serial No. 465,155, ñled November engaged over a guide strip iii which also enters l0, 1942, and Serial No. 484,934, ñled April 28, 1943, Patent No. 2,353,186, issued July l1, 1944. 10 between the ends of and serves to hold the coil supporting strip E l in place. This application is a continuation-in-part of each The volume control is shown as a pair of op of said parent applications. Objects of the invention are to provide a unit for tuning, volume control and other related pur poses, which will occupy but small space, te in expensive and practical from the commercial standpoint and be accurate, reliable and other wise desirable foil the user. A special object ofthe invention is to combine positely wound resistance coils il on a flat strip of insulating material I8 formed into the shape of Aa ring and supported at the back of the tun ing coil in position for engagement at the inside by a pair of rubbing contacts i9 carried by an arched spring 29 on a split block 2l adjustably clamped at 22 on the inner end of a spindle 23 the several control elements of the unit so that 20 rotatably and slidably supported in the tubular they may be quickly, easily and conveniently op screw I3. A knob or button 2li on the outer end provides erated all by the fingers of one hand. means for turning and pushing the spindle 23 Other desirable objects attained by the inven and a spring 25 in the center cavity 25 of tun tion will appear as the specification proceeds. The novel features and combinations through 25 ing knob I4 and between the back of center knob 24 and forward end of screw sleeve I3 serves to which the purposes of the invention are realized thrust the rotary push button assembly outwardly are set forth in the specification, broadly covered into the position shown in Fig. 1. in the claims and illustrated by way of practical The mechanism to be actuated by the push example in the accompanying drawings. It is realized, however, that actual physical structure 30 button operation of spindle 23 is shown as a switch made up of a contact button 2l in line may be modified and changed in various ways, all with and engaged by the insulating bushing 28 within the true intent and broad scope of the of the volume control, said contact being pressed invention. The illustration, therefore, is to be forward by spring 29 and adapted when forced taken primarily by way of disclosure and not by inward to bridge contacts 39, 3l for closing a way of limitation, actual scope of the invention circuit or circuits. being as »hereinafter claimed. The unit described occupies but small space Fig. 1 is a broken longitudinal sectional view of and a number of these units can be supported one of the combined tuning, volume control and in close side by side relation to provide for a switch units. plurality of pre-tuned and pre-set volume con Fig. 2 is a transverse view, showing particular trolled radio circuits, which can be selectively cut ly the volume control, as on substantially the into operation automatically through a program plane of line 2_2 of Fig. 1. selector such as disclosed in the applications above Fig. 3 is a broken horizontal sectional view of identiñed, or be selectively chosen at any time by a portion of the manual switches as on substan 45 simply pressing in one of the push buttons 2d. tially the plane of line 3-3 of Fig. 1. The coaxial, in-line disposition of the tuner, Fig. 4 is a broken longitudinal sectional view Volume control and switch provides a particularly of a micrometer form of tuner unit. compact, space saving and sturdy form of con Fig. 5 is a cross sectional detail as on substan struction and one which is readily understood and tially-the plane of line 5_5 of Fig. fl. Fig. 6 is a broken longitudinal sectional view 50 easily and conveniently operated by the user. The parts are simple and few and inexpensive to of anotherform of the-tuner unit. manufacture and assemble. Fig. 7 is a transverse sectional detail on sub The core guiding and coil supporting strip I'B stantially the plane of line 'l-l of Fig. 6. is shown as extending through the supporting In Fig. l a compact tuner of the inductance or permeabiilty type is illustrated, comprising one 55 partition 32, into position to enter between the ¿3 2,411,89'1 ends of the volume control supporting ring I8, thus to hold and eithel` partly or wholly support the volume control coils. In addition, these coils -may be supported by resting on a shelf portion 33 of the insulating back plate 34 carrying the switch contacts. The switch E?, Se, 3l, etc., may control one or a number of circuits. In the patent applications (Serial Nos. 397,504 and 450,449), in which the ñrst forms of the invention originated, the manu ally closed switch was utilized to eiîect operation of a magnet for closing the several circuits neces sary for actuation of a radio receiver tuned to a selected broadcasting or transmitting station. In the form of the invention illustrated in Figs. 4 and 5, tuning is eiîected by rocking a seg mental or H-form of core 35 one way or the other within the winding or windings IIJ, For purposes of line adjustment, a micrometer type of control is illustrated in the form of a Vernier knob 3S in front of the direct acting knob 37 and carrying an outer ball race 38 containing 4 Y bar pivotally mounted at its ends on the sup porting tube 5l and carrying a series of lugs 59 for engagement by the catches 5B of yokes 56 which thus serve to stop the bar in diiîerent po sitions. The universal bar being connected with the movable element of the tuner, thus serves to set the tuner in the position desired for receiving a station selected by angular adjustment of a particular catch. In the patent application re ferred to, the universal bar Si! is swung forwardly by a magnet energized through switch contacts Eil, 5I and is returned by spring power to the tuning position determined by the setting of the catch carrying yoke 56. The nut block 55 is shown coupled to yoke 56 by having a notch 5I in the lower edge of the same engaged over a cross pin 52 connecting the lower side portions of such yoke. The catch 58 which stops the tuning yoke is pivoted at S3 so that it may be swung up into an active position, as shown in Fig. 6, or lowered clear of the corresponding stop 59 on the tuning yoke and this positioning of the catch is deter mined in the illustration by a lever 64 pivoted at ing a tongue 42 extending through an arcuate 25 G5, having an upwardly angled forward end 65 slot ¿i3 in the front panel 44 into engagement disposed between rearwardly struck lugs 67 of balls 3Q bearing on an innner race member 40 supported on an inside row of balls 4I and hav over the reduced diameter portion ¿l5 of the core. the pivoted catch and having a cam slot 58 in its The inner knob 3l being fixed to the inner race rearward end engaged by a pin 59 on the sliding member do, enables quick and more or less coarse switch block 48. adjustments of the core while the outer knob 39 30 Thus, with the construction described, each through the ball race reduction provides for ñner time the magnet for operating the tuning yoke tuning adjustments. is energized and switch block ¿is is advanced to The core 35 is shown as freely supported on close the circuit or circuits for bringing in a se spindle 23 s0 as not to interfere with the rotary lected station, the lever @Il will be rocked by the volume control or longitudinal switch operating cam action 68, 69 to raise the catch 58 into place movements of such spindle. In the form of the invention last described and in the one following, the push button operation of the spindle is utilized to directly close a switch, where the cooperating stop lug 59 on the tuning yoke will engage that catch on the return move l ment of such yoke to'leave the receiver tuned for that particular selected station. as in the ñrst form, and in addition, to actuate a 40 rI‘he switch closing lever ¿lâ is indicated as hav rocker for other switch closing purposes. ing a connection at 'i0 with the core of a station The rocker is shown in the form of a lever 46 selecting solenoid and a yielding retainer bar is pivoted at 131 in position to be engaged by spindle indicated at 'I I which will hold such lever, whether 23 and pivotally connected with a switch block 48 it be actuated by a station selecting magnet or by slidingly guided at ¿i9 and carrying contacts 55 direct push of spindle 23 and release any previ for cooperation with stationary switch contacts ously held lever. ' 5I. These switch contacts may be sufficient to The Fig. 6 form of tuning unit has incorporated control all necessary .radio circuits for which the in it additional switch means shown as a disc 'i2 unit is tuned and volume controlled. on the front end of an insulating sleeve 'I3 slid The direct operating switch comprises in this 50 ingly engaged on spindle 23 and arranged to instance, a bridging contact 52 on the back of the connect the terminals 14, ‘l5 of the volume control volume control block 2l arranged to connect windings Il', thus to serve as a muter switch when switch contacts 53, 5e, which latter in the par the manual is operated. „ ticular disclosure (patent application, Serial No. To cause the muter switch, at IE, 74, I5, to close 465,155) in which this form of the invention ahead of the station. selecting or ‘.‘On” magnet originated, are connected with an “On” magnet switch at 52, 53, 5d, the insulating sleeve ,'13 carry for closing a necessary power circuit or circuits ing the outer switch contact l2, is slidingly con each time the manual is operated. ñned on the spindle 23 between the ñxed support Instead of a separate tuner and volume control 2i and the inner end of screw sleeve I3 anda for each station, the tuning mechanism may be frictional C-shaped wire dragspring is provided i6, Fig. in '7, having the form inturned of employed for determining the adjustment of a single tuner for all stations, with separate volume ends projecting through' oppositely disposed open control and manual switch mechanism for each station, substantially as illustrated in Figs. 6 similar to that ñrst disclosed in that the knob I4 ings in the sleeve 73 into frictional sliding en gagement with the spindle. Upon inwardV pressure on knob 24, the switch disc l2, traveling with spindle 23, will engage the volume control contacts I4, ‘i5 before switch turns a screw sleeve I3, but in this case the mem ber shifted by the screw is a nut block 55 non element 52 will engage contacts 53, 5d and with continued pressure on the knob, the spindle 23 rotatably conñned between the sides of a yoke 56 mounted for rocking adjustment on a pivot tube 5l and carrying an upstanding catch 58 for en gagement by a stop lug 59 on the tuning yoke 60. The latter, as fully disclosed in the parent case, Serial No, 484,934, is in the nature of a universal 75 will slide through sleeve 'i3 to carry the ñxed support 2i the necessary further inward move and 7. In Fig. 6 the tuning adjustment is generally ment to close the inner switch 52, 53, 54. ' When pressure on the knob is released, spindle 23 will be retracted by spring 25 to substantially simultaneously open both switches 52, 'l2 and the 2,411,891 ,s ¿i loose, frictionally carried sleeve 'I3 will be re stored to its original position by engagement wi-th the inner end of screw sleeve i3, the spindle continuing its outward movement until the fixed switch block 2i comes against the inner end of sleeve 13. Thus, by the combined action of the ñxed and loose switch members, the spindle is stopped at the outward limit of its movement, after restoring the movable switch plate ’i2 to the position where it will close the muter circuit in advance of the closing of the magnet circuit or circuits. What is claimed is: l. Radio control apparatus comprising a tubu lar support, a control spindle rotatable and slid able through said support, a sleeve slidably en gaged on said spindle at the inner end of said means engageable by-said ñxedly mounted switch element upon inward thrust of said spindle, sta tionary muting switch elements engageable by said slidably mounted switch member on inward movement of said spindle in advance of cooper ation of said ñXedly mounted switch element with said Erst-mentioned switch contact means, said spindle with said iixedly mounted switch element continuing its inward the engagement and stopping mounted switch member by switch elements, spring means movement after of said slidably said stationary for shifting said spindle in the reverse direction and a stop en gageable by said slidably mounted switch ele ment in the outward spring movement of said spindle to return said slidably mounted member back into its original relation with respect to said ñXedly mounted switch element at the in support, a switch block ñxed on said spindle at ner end of the same. the inner end of said sleeve, control switch con 5. Radio control apparatus comprising a ro tact means engageable by said switch block upon 20 tatably and slidably mounted control spindle, a inwardVV thrust of said spindle, a switch member switch closing member slidably engaged on said on said slidable sleeve, cooperable muting switch spindle, a switch element íixedly mounted on the elements engageable by said member on inward spindle at the inner end of the slidably mounted movement of said spindle in advance or" coopera switch member, control switch contact means en 25 tion of said switch block with said nist-mentioned gageable by said ñxedly mounted switch element switch contact means, saidl sleeve being engage upon inward thrust of said spindle, stationary able by said switch block upon outward movement of said spindle and engageable at its outer end muting switch elements engageable by said slid ably mounted switch member on inward move ment of said spindle in advance of cooperation of said fixedly mounted switch element with said first-mentioned switch contact means, said spin dle with said ñxedly mounted switch element port. continuing its inward movement after the en 2. Radiocontrol apparatus comprising a tubu gagement and stopping of said slidably mounted lar support, a control spindle rotatable and slid switch member by said stationary switch ele able through said support, a sleeve slidably en ments, spring means for shifting said spindle in lgaged on said spindle at the inner end of said the reverse direction, a stop engageable by said support, a switch block fixed on said spindle at slidably mounted switch element in the outward the inner end of said sleeve, control switch con tact means engageable by said switch block upon 40 spring movement of said spindle to return said slidably mounted member back into its original inward thrust of said spindle, a switch member relation with respect to said ñxedly mounted on said slidable sleeve, cooperable muting switch switch element at the inner end of the same elements engageable by said member on inward and a frictional drag connection between said movement of said spindle in advance of cooper ation of said switch block with said first-men 43 spindle and slidably mounted switch member. 6. Radio control apparatus comprising a tioned switch contact means, said sleeve being tuner having tubular screw and nut elements, a engageable by said switch block upon outward knob for rotatably adjusting said tubular screw, movement of said spindle and engageable at its a spindle slidably and rotatably operable in said outer end with the inner end of said tubular tubular screw, a knob for turning and pushing support, spring means for yieldingly holding said said spindle, a contact member carried by said spindle in outward position with the end of said spindle, a volume control winding engageable sleeve so engaged with the inner end of said tubu by said contact member, switch means operable lar support and a yielding frictional coupling be by said spindle in the longitudinal movements tween said sleeve and spindle. 3. In combination, a tuner having tubular screw Ul Ui of the same and including a movable switch ele ment carried by the spindle and a relatively sta and nut elements, a knob for rotatably adjusting tionary element cooperable therewith, said knobs said tubular screw, a spindle slidably and ro on the tubular screw and spindle being disposed tatably operable in said tubular screw, a knob in adjoining relation and a spring between the for turning and pushing said spindle, a contact member carried by said spindle, a volume control 60 knobs for holding said spindle normally in posi tion with the switch elements in separated rela winding engageable by said contact member, tion. switch means operable by said spindle in the lon '7. Radio control apparatus comprising a ro gitudinal movements of the same and including a tatably and slidably mounted control spindle, a relatively stationary contact and a cooperating contact carried by said spindle, said knobs being 65 switch closing member slidably mounted on said spindle, a second switch closing member mount disposed in adjoining relation and a spring be ed on said spindle, control switch contact means tween said knobs for shifting said spindle in a engageable by said second switch closing mem direction to hold the switch contacts normally ber upon inward thrust of said spindle, station separated. 4. Radio control apparatus comprising a ro 70 ary muting switch elements engageable by said slidably mounted switch closing member on in tatably and slidably mounted control spindle, a ward movement of said spindle in advance of switch closing member slidably engaged on said cooperation of said second switch closing mem spindle, a switch element ñxedly mounted on ber with the control switch contact means en the spindle at the inner end of the slidably mounted switch member, control switch contact 75 gageable thereby, said spindle with said second spring with the means innerfor end yieldingly of said tubular holding support said spindle in outward position with the end of said sleeve so engaged with the inner end of said tubular snp 7 2,411,891 switch closing member having continued inward movement after engagement of said slidably mounted switch closing member with said sta tionary muting switch elements, spring means for shifting said spindle in the reverse, outward direction and a stop engageable by said slidably mounted switch element in said outward spring movement of said spindle to return said slidably mounted member back into its original relation further movement of the plunger necessary to operate the power switch after operation first of the muter switch and means for automatically returning said muter switch member to its initial relation on the plunger~in the movement of said plunger by said spring means. 10. Radio control apparatus of the character disclosed comprising a plunger, relatively sta tionary switch elements spaced longitudinally of with respect to said second switch closing 10 said plunger, cooperating switch actuating mem member. bers on said plunger and normally positioned 8. Radio control apparatus comprising a to engage said relatively stationary switch ele tuner having a tubular element and a knob for ments, one in advance of the other, in the move rotatably adjusting the same, a spindle rotat ment of the plunger in one direction said ñrst ably and slidably operable in said tubular ele 15 engaging switch member being yieldingly mount ment and provided with a knob for turning and ed on said plunger to permit the further move pushing the same, a ring of insulating material ment of the plunger necessary to elîect the sub supported about the inner end of said spindle, sequent engagement of the other switch mem oppositely disposed resistance coils wound on ber with the other switch element, spring means said ring, a brush mounted on said spindle in for thrusting the plunger i'n the opposite direc position to bridge said resistance windings and tion and means for automatically restoring the to thereby cut resistance in and out with rota yieldingly mounted switch member to its normal tion of the spindle in opposite directions, com position on the plunger in the movement of the panion switch elements at the end of said spin plunger effected by said spring means. dle and operable by the longitudinal movements 25 11. Radio control apparatus of the character of said spindle and a spring interposed between disclosed comprising a rotary adjusting member the knobs aforesaid for normally holding said of tubular construction, adjustable control spindle thrust outwardly in position for push means operable by said rotary adjusting mem actuation. ber, a plunger rotatably and slidably operable 9. Radio control apparatus comprising a 30 'in said rotary adjusting member, a volume con plunger, relatively stationary muter switch and trol winding about the inner end of said plunger, power switch elements spaced longitudinally of a contact carried by said plunger in engage said plunger, companion switch operating mem ment with said volume control winding and ad bers on said plunger cooperative, respectively, justable over said winding in the rotary adjust with said muter switch and power switch ele 35 ment of said plunger, a switch closing lever piv ments and said members normally spaced on otally mounted at the inner end of said plunger said plunger to eiïect operation of the muter in back of said volume control winding and oper switch in advance of the power switch in the. ably engageable by the end of said plunger in the movement of the plunger in one direction, spring inward sliding movements of the same and spring means for thrusting the plunger in the opposite 40 means for yieldingly thrusting the plunger in the direction, means yieldingly mounting said muter opposite direction. switch member on said plunger to permit the FREEMAN H. OWENS.