US2076900A - Radio control device - Google Patents

Description

April 13, 1937. C LANGLEY 2,076,900

RADIO CONTROL DEVICE Filed Oct. 17, 1932 5 Sheets-Sheet l A frog/vex April 13, 1937. c LANGLEY 2,076,900

RADIO CONTROL DEVICE Filed Oct. 17, 1932 5 Sheets-Sheet 2 [/v v/v TOR Car/ /7 Lang/Q30,

C. H. LANGLEY RADIO CONTROL DEVICE April 13, 1937.

Filed Oct. 17, 1932 5 Sheets-Sheet 3 jig Z71]: 6O

Car/HA, 65/, W M

April 1937- c. H. LANGLEY 2,076,900

RADIO CONTROL DEVICE Filed Oct. 1'7, 1932 5 Sheets-Sheet 4 ATTORNX Patented 13,1931

UNITED STATES RADIO CONTROL DEVICE Carl H. Langley, Los Angeles, Calif., assignor of forty-five per cent to Phillip K. Wlseman, Los

Angeles, Calif.

Application October 17,

14 Claims.

My invention relates to a device for controlling the tuning mechanism of a radio set, such device being adapted to automatically change the adjusting or tuning of the radio at prescribed 5 times so that pre-selected radio programs will be reproduced.

At the present time' radio receiving sets are provided with one or more knobs whereby the tuning elements-thereof may be adjusted for the m reception of different .wave lengths, thereby making it possible to receive or reproduce programs from any one of a large number of radio broadcasting stations. K

It is an object of my invention to provide a 1:, device which may be pre-set so as to automatically produce a change in the adjustment of the tuning elements of the radio set at a prescribed time in the future to receive a selected broadcast wave and thereby reproduce the program of a selected station. The device is provided with a clock mechanism and a record member, or a plurality thereof, adapted to be pre-set or pre-adjusted to cover a future period of time, the timing means being associated with 25 mechanism whereby the tuning element of a radio receiving set is readjusted in accordance with the manner in which the record or records have been pre-set. For example, radio programs are generally divided into minimum 30 periods of time of fifteen minutes each, such periods starting on the four quarter divisions of each hour.

In the preferred practice of my invention I may provide a plurality of records, each representing a day of twenty-four hours divided into fifteen minute periods. In a simple manner this record may be pre-set or adjusted for each fifteen minute period, and as the record or control means is moved in fifteen minute intervals relative to the operating mechanism of my device, the record will control the operation of the mechanism in such a manner that the tuning element of the radio will be readjusted to tune the receiving set for the wave length, or radio station, indicated by the pre-setting or pre-adjustment of the record. Therefore by the use of my invention the radio receiving set may be automatically tuned or retuned at the beginning of each fifteen minute period throughout a number of days corresponding to the number of daily records in place in the controlling device.

It is an object of my invention to provide in a device of the above character a means for 55 turning the tuning element shaft. or the tuning 1932, Serial No. 638,188

dial, of a radio receiving set to a. desired position, such means being capable of turning the dial either clockwise or counter-clockwise in accordance with the direction of rotation necessary to bring the dial into the predetermined position controlled by the setting of the record; and it is a further object to provide a means of this character which will adjust the tuning shaft or dial to relatively small divisions. For example, it is customary to divide the scale of the dial into one hundred units of movement or rotatlon of the tuning element which ordinarily is of condenser character. In my improved device the dial may be at a prescribed time in the future automatically rotated to any one of the unit divisions of the scale. I

It is a further object of the invention to pro-- vide a device of the foregoing character which may be employed to automatically control the setting of a tuning unit of a radio but which may be manually disconnected at any desired time so that the radio may be manually tuned, but which device may be caused to automatically reassume its function of automatically controlling at the end of a certain program or at some future time controlled by the records employed in the invention.

A further object of the invention is to provide a device of the above character in which the controlling records are moved at intervals across a prescribed position, and in which means are provided for holding the records in reserve and to move them in consecutive order relative to the operating mechanism, with the result that a continuous control of the radio receiving set may be accomplished through a period of time consisting of a number of days.

Further objects and advantages of the invention will be brought out in the following part of the specification.

Referring to the drawings, which are for illustrative purposes only,

Fig. l is a partly sectioned plan view of a. preferred embodiment of my invention.

Fig. 2 is a cross sectional view taken substantially as indicated by the line 2--2 of Fig. 1.

Fig. 3 is a cross section on the plane represented by the line of Fi 1.

Fig. 4 is a fragmentary cross sectional view similar to the upper portion of Fig. 2, showing one stage of the operation of the device.

Fig. 5 is a view similar to Fig. 4, showing other cooperating positions of the parts of the mechanism.

Fig. 6 is an enlarged fragmentary elevational 75 'of' the levers 2| and 22 in lowered position Fig. 10 is a section similar to Fig. 9 showing the record after asection thereof has been adjusted.

Fig. 11 is a fragmentary section on the plane represented by the line of .Fig. 2'.

v Fig. 12 is an enlarged section taken as indicated by the line |2|2 of Fig. 1.

Fig. 13 is a section similar to Fig. 12, showing the latch mechanism of Fig. 12 in position of engagement.

Fig. 14 is'a wiring diagram for the electrical elements of the preceding illustrations.

Fig. 15 is a fragmentary elevational view looking at the leftward 'ends of the levers of the device as indicated by the arrow l2 of Fig. 1. In Fig. 1 I show a housing or casing |2 preferabLv having parallel vertical side walls l2 and II. By use of bearing members i2 a horizontal shaft 22 is supported between the sidewalls 2 and I1. Supported on this horizontal shaft are a plurality of primary levers 2| and a plurality of secondary levers 22, the leftward ends of which are pulled horizontally upward by springs 22 connected to lugs 24 which extend leftwardly from a horizontal supporting structure 22 which has .3 its ends secured by means such as rivets .22 to the side walls l2 and ll of the casing l2.

There are ten of the primary levers 2| an nine of the secondary levers 22, as clearly shown in Fig. 1. The rightward ends of the primary levers 2|, as shown in Fig. 7, have downwardly projecting brush members 21 having semispherical lower ends 22 and upwardly projecting stem portions. 22 which extend into vertical openings 2| formed in the ends of the levers 2| and being adapted to engage stationary contact blocks 22 to which conductors 22 may be secured.

As shown in Fig. 3, the rightward ends of the secondary levers 22 are provided with brush or contact members 24 which have relatively slender points 22, the upper ends of which members 24 are adapted to engage stationary contact blocks 22 to. which conductors 21 may be secured. Rightwardly .of the shaft 22 a shaft 22 is extended horizontally between bearing members '42 carried by the side walls "and i1. As shown in Figs. 1 and 3, the portion of the shaft 22 adjacent the rightward ends of the secondary levers 22 has an upwardly extending blade or pawl 4| adapted to engage rightwardly extending dogs or catches 42 on the ends-of the secondary levers 22 to hold the levers [22 in raised position as shown in Fig. 3 until theproper time for release thereof. Extending leftwardly from the shaft 22 are arms 42 which support a horizontal bar 44 over the leftward portions of the primary levers 2|.

As shown in Figs. 1 to 5, the horizontal supporting structure 22 has vertical holes 42 aligned with the rearward or leftward portions of the primary and secondary levers 2| and 22, and in 7 these vertical openings are primary and secondary pins 42 and 41, each of which has an upper end 48 of reduced diameter. The purpose of the pins 42 and 41 is to hold the leftward ends and - to maintain the rightward ends of the levers 2| and 22 in raised position, as will be hereinafter explained. The holding, down of a pin 42 or 41 will prevent the leftward end of the lever 2| or 22, with which it is associated, from being pulled upwardly by a spring 22.

To hold all or a selected number of the pins '42 or 41 downwardly, I provide a control or record member 22 of suchv character that it will provide one or more openings in the bottom thereof into which the upper reduced ends 42 of selected or predetermined pins 42 or 41 may upwardly extend, thereby permitting such pins to move upwardly and in turn permit the raising of the leftward ends of associated levers 2| and 22.

As shown in Figs. 2,8,9, 10, and 11, the record V 22 in its preferred form comprises a flat plate 2| the blocks 22 are of a length L shown equal to the spacing of the openings 22 and 22 'along the lines 24 or 22 on which the openings are disposed, but 'the channels 22 and 21 are of such lengththat spaces 22 may be left. at the ends of the channels adjacent the-end block of each group of blocks 22 or so that by forcing a stylus or other slender member 2| an opening 22 or 22, the blocks 22 may be forced apart to provide an opening 22 or 22 between adjacent blocks and under the opening 22 or 22 through whichthe slender member 2| has been passed as indicated in dotted lines 24 in Fig. 10.-

The openings 22 are nine in number and are numbered in units, or from-one to nine.- The openings 22 are eleven in number, ten of them being numbered by tensfrom zero to ninety, and

the-eleventh opening- 2 being indicated by the word Stop.

At the extreme ends of the channels 22v and 21 into co-engagement and eliminate any opening downwardly through 22 or 22 between the ends of the group of blocks in either channel 22 or 21.

The openings 22 and 22 are spaced along the lateral lines 24, 22, at distances equal to the spac-' ing of the parts 41 and 42. Accordingly, when a record 22 is in a position such as indicated in Fig. 2 with a cooperating pair of channels 22 and 2 1 aligned over the pins '42 and 41, the openings 22 and 22 formed between blocks 22 as previously described will be in position to receive the upper ends 42 of therewith aligned pins so as to permit upward movement of such pins and upward move-- a rotating switch member 12 is mounted, such I switch member having a radially extending contact 1| and a substantially circular insulating both! 12. The shaft 28 has a driving lug 12 which projects into a segmental opening I4 in the member 12 for the purpose of rotating the member 12 in the direction of the arrow I2 by permitting a limited forward movement of the member 18 on the shaft.

As shown in Figs. 4, 5, and 14, adjacent the member 18 is a stationary switch contact 16 which is connected through a conductor 11 with a rec 0rd advancing motor 18, this motor being connected with a conductor 88 which leads from source of electrical power .which may readily consist of a transformer 8|. A conductor 82 is employed to connect the member 18 and its movable contact H with a second conductor 83- which extends from the transformer 8|. The motor 18 is adapted to rotate a pinion 84, which in turn drives a gear 85 in clockwise direction as indicated by the arrow 86 of Fig. 2. The face of the gear,

85 has a cam 81 thereon which is substantially the flattened face 88 of the cam 81, but as the cam 81 is rotated in clockwise direction through a position indicated by dotted lines '93, the lever 98 is swung downwardly to the position indicated in dotted lines 94. As the cam 81 is further rotated in clockwise direction, a pin 95, which projects forwardly therefrom, engages a lever 96 which is rotatably mounted on a horizontal shaft 91. This lever 96 is accordingly swung into the position indicated by dotted lines 98, and a pawl I88 thereon advances a ratchet wheel I8I. The ratchet wheel I8I is non-rotatably secured to the shaft 91 so that rotation of the ratchet wheel I8I will produce rotation of the shaft 91 and sprocket or pulley means I82 which are mounted thereon, an external knob I83 being provided whereby the shaft 91 may be manually rotated.

Over the pulley means I82 parallel belt means I84 and I85 are carried. These belt means pass over pulley means I86 carried by a horizontal shaft I81, the upper portions of each of the members I84 and I85 passing over flat plates I88 which are carried near the ends of the horizontal supporting structure 25. The members I84 and I85 have outwardly extending engagement members II8 adapted to engage openings III in the lower edge portions of the record 58 whereby to propel the record 58 in forward direction as indicated by the arrow 2 of Fig. 2.

Each rotation of the pin 95 will produce an advance of the ratchet wheel I8I through an angular distance equal to one tooth, and such rotation of the ratchet wheel will produce a belt movement through the distance required to move the record from one fifteen minute period to the next fifteen minute period, or from one cooperating pair of channels 56 and 51 to the adjacent, channels 56 and 51 in the bottom of the record 58.

Means are provided for holding the leftward ends of all of the primary and secondarylevers 2| and 22 in lowered positions, thereby assuring that all of the pins 46 and. 41 will be in lowered position during the movement of the record 58 by the record advancing means previously described.

For moving the leftward ends of the levers 2| and 22 against the upward pull of the springs -23, I show vertical links II3 which are moved downwardly in response to the downward movement of the lever 98 by the cam 81. Between the upper ends of the links I I3 -a bar I I4 is extended, this bar passing over the leftward ends of the levers 2| and 22, with the result that with downward movement of the lever 98 there is produced a downward movement of the bar II4 so as to move the leftward ends of all of the levers 2| and 22 downwardly.

In Fig. 4 the cam 81 and the pin 95, with their associated parts, are shown in their respective positions at the close of a record advancing movement. As the pin 95 travels downwardly from the position in which it is'shown in Fig. 4, it releases'the lever 96 and moves into engagement with the under side of a pin I28 which projects from the member 18 and lifts this pin I28 from the position in which it is shown in Fig. 4 into its position of Fig. 5, thereby rotating the member 18 on the shaft 68 and moving the contact H from engagement with the stationary contact16, thereby cutting oif the supply of electrical energy to the motor 18 so as to stop the cam 81 and its associated-parts in a position of rest, the lever 98 being permitted at this time to swing upwardly into engagement with the fiat face 88 of the cam 81 and release the levers 2I and 22 so-that they will be drawn by the force of the springs 23 against the lower ends of the pins 46 and 41.

If the blocks 58 in a channel 51 lying above the pins 46 have been adjusted to provide a space or opening 63, the point 48 of the pin 46 aligned with such space or opening 63 will move upwardly into such space or opening 83 and permit a lever 2|, such as specifically indicated at 2| (1 in Fig. 2, to move downwardly from the raised position of Fig. 4, thereby bringing the brush or contact 28 at the rightward end of such lever 2Ia into engagement with a segmental contact I2I mounted on a drum I22. 7

It will be noted that at this time the pawl 4| -holds the secondary levers 22 in raised position so that the leftward ends thereof are lowered. As shown in Fig. 15, the leftward end of each lever 22 carries a contact I23 adapted to engage stationary spring contact blades I24 which are connected in-series. The spring contact members may be supported on an insulated bar I25 carried by a supporting structure I26. As clearly shown in Fig. 14, all of the conductors 33 connected with the stationary contact blocks32 at the forward ends of the levers 2| are connected in multiple to a conductor I21 which connects to one end of the series of switch means I28 formed between contacts I23 and I24. The other end 128 of this series of switch means is connected through a conductor I38 with the feed conductor 88. Accordingly, when the lever indicated specifically at 2Ia in Fig. 2 drops into engagement with a segment I2I, the brush 28 is lifted into engagement with its cooperating contact block 32, thereby electrically connecting the segment I2I' with the feed conductor 88.

As shown in Fig. 2, a second segment I 3| is mounted on the drum I22 in alignment with the segment I2 I, but a space is provided between the adjacent ends of the segments I2I and I3I, this space being occupied by a body of insulating material I32 having a pocket I33 formed therein to receive the spherical lower end of the brush contact 28 carried by the lever 2 la. The segment I2I is connected through a wire I34 with a ring I I35. and the segment I3I is connected througha wire I36 with a ring I31, both of these rings being mounted at the end of the drum I22 so that brushes I48 and HI may be supported in positions to engage their respective rings I35 and I31.

' By the use of wires I42 and I43. the respective brushes I48 and I 4| are connected with -motors I44 and I45, and these motors are connected through conductors I46 and I41 with the feed and the motor I45 will rotate the drum I22 in anti-clockwise direction.

As previously described, the dropping of the forward end of the lever 2Ia. as shown in Fig. 2 has caused the contact 28 to engage the segment I2 I. From Fig. 14 it will be perceived that at this time the clockwise motor I44 will be energized by flow of current through the conductor I38, the switches I28, the conductor I21, the conductor 33 indicated specifically at 33a, the segment I2I, a conductor I34, the ring I35, the brush I48, and the conductor I42. The operation of the mo tor I44 will cause the drum I22 to rotate in clockwise direction as viewed in Fig. 2, or rearwardly with relation to the tuning movement of the ,drum, and move the insulator I32 toward the brush contact 28, so as to carry the depression I33 into alignment with the contact 28, withthe result that, as shown in Fig. 5, the brush contact will drop into the depression I33, thereby allowing the forward end of the lever 2 Ia to swing downwardly. The corresponding upward movement of the leftward end of the lever 2Ia lifts the bar 44 and swings the arms 43 upwardly, rotating the shaft 38 in clockwise direction and moving the pawl H from its position of engagement with the catches 42, as shown in Fig. 4, to a releasing position as shown in Fig. 5. At this time the springs 23 connected to the rearward ends of the levers 22 will pull upwardly on the rearward ends of the levers 22, forcing them against the pins 41. The opening 82 formed between the blocks 58 of the record 58, as shown in Fig. 10, will permit one of the pins 41 to move upwardly, namely, the sixth pin indicated specifically at 4111. Accordingly, the lever 22 indicated at 22a may rotate inclockwise direction so as to move the brush contact 34 into engagement with a segment I54 mounted on the drum I22 in alignment with the lever 22a, and raising the leftward end of the lever 22a so as to remove the contact member I23 at the leftward end thereof from engagement with the spring contact member I24 cooperating therewith. This opens the series of switch means I28 in the circuit leading to the clockwise motor I44, thereby de-energizing the motor through the electrical circuit which was originally closed by the dropping of the forward end of the lever member 2Ia. As shown in Fig. 14, the conductors 3'I connect the brush contacts 34 through the conductor I38 with the power feed circuit 88.

The segment I54 is connected through a wire I55 and a conductor I58 with the ring I35 in turn connected to the motor I45. Accordingly, the

. anticlockwise motor I45 will be energized through '35 of the brush contact 34 coincides with an approaching insulator body [58 in the segment It will be noted that the insulator member I58 has a depression or pocket I88 therein into which the point 35 may drop, thereby permitting the brush contact 34 to drop down from engagement with the 'contact block 38, breaking the circuit to the motor I44, and stopping the drum at the point designated by the alignment of the pocket I88 with the point 35.

From the foregoing description it will be noted that the drum, in response to engagement of the contact 28 of the lever 2Ia with the segment I2I, was first moved through a major distance, after which it was moved through a smaller distance in response to engagement of the contact 34 of the lever 22a with thesegment I54. The drum may be connected through any suitable means, such as a shaft extension I83, with the tuning element of a radio set which has a rotating movement equal to an arc of rotation defined by the ends I84 and I of the segments I2I and I3I, Fig. 2. The space 83, Fig. 18, which permitted the lowering of the rightward end of the lever 2Ia was produced by inserting the stylus member .8I through an opening 53 designated as 58 along the scale of 0 to in Fig. 8.

The pocket I33, Fig. 2, formed in the insulator body I32 between the segments I2I and I3I is so positioned on the drum that the energization of the motor I44, through engagement of the contact 28 with the segment I2I, causes the drum to move to a position half-way between the ends I84 and I85 .of the arc of rotation so as to cause the tuning element of the radio set to be moved to a position 50 on a radio tuning scale divided into one hundred parts. The space 82,

I Fig, 10, which permitted the upward movement of the pin 41a and the downward movement of the rightward end of the lever 22a, is in a position corresponding to the numeral 5 along the leftward edge of the record 58 shown in Fig. 8. The pocket I 88 in the insulator body I58, Fig. 3, is in a position five points to the right of the radial plane AA of the pocket I33, with the result that the energization of the motor I44 through engagement of the brush contact 34- with the segment I54, has caused the drum to move the tuning element of the radio set an additional five points beyond the 50 point or to a position at 55 on the tuning scale. Accordingly it will be seen that by inserting a stylus through the opening 53 opposite the position 58" designated at the leftward edge of the record 58 in Fig. 8, and through the opening 52 adjacent the numeral 5, the automatic tuning device has been controlled by the record in such a manner' as to rotate the tuning element to the position 55 on its scale at the beginning of a fifteen minute interval determined by the clock 81.

If at the beginning of the series of operations previously described, the drum I22 should be in such a position that the contact 28 of the lever arm 2Ia drops into engagement with the segment I3I, energization of the anti-clockwise motor I45 will result to turn the drum I22 in anticlockwise direction to bring the pocket I33 into engagement with the brush contact 28, after which the energization of the clockwise motor through closing of the circuit by engagement of the brush contact 34, Fig. 3, with the segment I54, will further move the drum to rotate the tuning element of the radio set to the 55 position on its tuning scale.

The ten-levers 2I are representative of the ten major divisions of a tuning scale from one to one hundred, each of these major divisions consisting of ten units, and the nine levers 22 are representative of nine unit divisions which may be disposed between any of the major divisions of the scale. Accordingly, each lever 2I is adapted to cooperate with segments similar to the segments I2I and I3I, specifically designated as seg such selected lever Will cause the closing of a contact through either a segment I2Ia or a segment I3Ia to cause the movement of the drum into a position in accordance with the position of the opening 53 relative to the scale zero to ninety on the record 50.

The levers 22 cooperate with the openings 52 along the scale one to nine of the record 50, and each of the levers 22 cooperates with a segment similar to the segment I54, which additional segments, shown in Figs. 1 and 14, are designated by the numeral I54a. Each of these segments I54 or I54a has ten of the insulator bodies I58 therein, and there are ten insulator bodies I32 and I32a-cooperating with the seg- 'ments I2I, I3I, I3Ia, and I'2Ia'. Each segment I54 or I54a therefore has an insulator body set slightly in advance of each insulator body I32 or I32a, the advance of the insulator bodies I 54 and- I54a relative to the insulator bodies I32 and I320. corresponding to the numerical position of the segment I54 or I54a relative to the scale divisions one to nine. For example, in the explanation of the operation of the device, the insulator body I 58, Fig. 3, was disposed six points or six units beyond the plane A-A of the insulator body I32.

The segment I54 has nine other insulator bodies I58a, each of which is disposed six points beyond a plane or position of an insulator body I32. .I-herefore, should any one of the levers 2| be selected to produce movement of a corresponding insulator body I32 or I32a into the vertical plane 3-3 in which the contacts 28 are disposed, the

segment I54 will have a contact body I58 or I58a. disposed six points therebeyond, and each of the remaining segments I540.- will provide insulator bodies I58a disposed beyond the position at which the drum has stopped in accordance with the numerical value of the segments I54 or I 54a. It is therefore possible by adjustment of the blocks 58 of the record50 to automatically control the movement of the drum I22 into any selected unit division between the points zero and one hundred, thereby making it possible to pre-set the record 50 so that the radio set will be adjusted to receive any desired wavelength at a prescribed time in the future.

It will be noted that the record 50 is provided with adjacent rows of openings 52 and 53 throughout the length thereof on lateral lines 54 and 55. These rows of holes are spaced apart distances corresponding to one advancing movement of the record by the advancing mechanism controlled by the clock, and accordingly=the rows of holes may be numbered for fifteen minute intervals as at I15 along one edge of the record, and the records may be of any desired length, such as twenty-four hours.

The invention further comprehends the use of a plurality of records, indicated individually at 50a in'Fig. 2, which records may be stacked in a suitable guide or receiver I16 so that they will drop into position for engagement by projections IIO as each preceding record is carried out from under the stack of records. Therefore, if the records are made of such length that each will conperiods.

trol a twenty-four hour period, an entire week's program may be arranged by use of a stack of seven records. By inserting the stylus through any of the holes 53 aligned with the designation Stop, the mechanism may be controlled to shut off the radio during one or more fifteen minute over the row of Stop openings of the record, and the lower end thereof is adapted to control the movement of a switch lever I80 which extends leftwardly from the shaft 20. On a pivot I8Ia switch member I82 is swingably mounted in such position that its rearward end I83 will be engaged by the leftward or rearward end I84 of the lever I80 when the pin I I8 is permitted to move upwardly by the record 50 so that the lever I80 may be swung into the dotted line position I85. The resulting swinging movement of the switch member I82 causes a knife switch I85 to be opened, thereby breaking the radio feed circuit so that the radio set will not play, but without interfering with the intermittent advancing of the record 50 as previously described.

The wiring diagram of Fig. 14 shows the switch I88 in a circuit I80 adapted to connect the radio set with a 110-volt service wiring I9I, A manual radio control switch I92 is shown in a position to bridge across the switch I86 so that the radio set may be turned on manually should the switch I86 be opened in response to a setting of the record 50, thereby making it possible to turn the radio set on at any time during such periods as the setting of a record may maintain it in inoperative condition. The record accordingly may be set to stop the radio set and maintain it in an off condition through any desired period of time and to turn the set on and off at various times. The bar 44 has a projecting end which extends under the rightward portion I93 of the switch member I82 which will operatcto close the switch I88 whenever a lever member H is caused or permitted to rotate in clockwise direction as a result of the dropping of a brush contact 28 into a recess or pocket I33, thereby re-energizing the radio set whenever the blocks 58 of the record 50 are in position to produce an operation of the drum I 22.

The automatic tuning device may be rendered temporarily inoperative by use of a knob I95 which is mounted on a shaft I96 extending through a case I91, Fig. 1. As shown in Fig. 12, this shaft I96 is normally rotated by a spring I98 in anti-clockwise direction to bring a projection 200 extending from a disc 20I mounted on the shaft I96 against a stop 202. The shaft extends horizontally under the rightward ends of the levers 2i and 22- and has a cam 203 thereon, as

shown in Figs. 2 and 3, this cam havinga shoulbe desired to change the setting of the drum and.

of the tuning dial of the radio set at any time, the knob I95 may be rotated against the action of the spring I98 through an angle of 180 so as to lift the levers 2| and 22' from the possibility of their engagement with the segments carried by the drum I22. The engagement of the shoulder or ratchet 204 with the notch 205 will prevent the cam from rotating to its normal lowered position until the subsequent operation of the ca 8 A y, at the end of the fifteen minute period during which the cam 203 has been actuated, the lever 90will be forced A pin I'I8, Figs. 1 and 6, is positioneddownwardly, and the bar ill will raise the rightward ends of the levers 2| and 22, thereby removing the notch 200 from engagement with the shoulder 204, allowing the spring to rotate the shaft I00 and carry the cam 203 into lowered position.

The foregoing manner of manipulating the knob I makes it possible to change the tuning of the radio set during a fifteen minute period but permits the automatic tuning device to resume its control of the radio tuning element at the end of the fifteen minute period. Means are also provided whereby the levers 2| and 22 may be held in a raised position for an indefinite period. Such means consists of a pawl 206 mounted within the case I91 and being adapted to engage a shoulder 201 carried by the disc 20l. The pawl 206 is normally held in outward position by a light spring 200 which will permit movement of the pawl, by a manually operable pin or plunger 2| 0, from the position in which it is shown in Fig. 12 to the position of engagement with the shoulder 201, as shown in Fig. 13. The force of the shoulder against thepawl 206 holds these parts in engagement against the pressure of the spring 200 until the knob I95 is manually rotated in clockwise direction to disengage the shoulder 201 from the pawl 206. Accordingly, the cam 20! may be latched' in raised position and may be subsequently released by merely turning the knob I95 to disengage the catch formed by the pawl 200 and the shoulder 201.

The operation of the radio control devicewhen there is no record present in position to cooperate with the pins 48 and 41 is prevented by a' latch consisting of a bar 2 pivoted at 2 I; having alaterally extending arm 2 adapted to extend upwardly into the path of the record 50, and when the member 2 i2 is pulled leftwardly by a spring 2l0, the lower end of the member 2l2 engages the bar 44 so as to prevent upward movement of this bar 44 when no record is in operative position. The moving of the record 00 into operative position as shown in Fig. 2 depresses the upwardly extending portion 2 and causes the member M2 to swing from dotted line position to full line position of Fig. 2, thereby releasing the bar 44 so that the leftward portions of the levers 2| may swing upwardly and so that upward movement of the extending end of the bar 44 may close the switch I.

' Although I have herein shown and described my invention in simple and practical form', it is that certain parts or elements there-.

of are representative of other parts, elements. or mechanisms which may be employed in substantially the same manner to accomplish substantially the same results; therefore, it is to be understood that the invention is not to be limited to the details disclosed herein but is to be accorded the full scope of the following claims.

' I claim as my invention:

1. A device of the character described .for automatically adjusting a member'in accordance with a predetermined schedule, including: a record having consecutive groups of adjustable parts thereon, there being means whereby said parts may be adjusted to positions representative oi' desired positions of said member to be adjusted; means for producing a movement ot said record to bring said groups of adjustable parts individually into a plane of operation; and actuating means controlled by the group of said adjustable parts in said plane of operation for moving said -atively small block members member to the position represented by said adjustable parts.

2. A device as record comprises a body having consecutive guides, and said adjustable partsconsist of relslidable in said guides.

3. A device as defined in claim 1 in which said record comprises a bodyhaving consecutive guides, and said adjustable parts consist of relatively small block members slidable in said guides, there being openings in said body for guiding a stylus-like member into engagement with said block members.

' 4. A device as defined in claim 1 in which said record comprises a flat body having parallel channels in the bottom thereof and said adjustable parts comprise blocks slidably disposed in said channels, there being openings extending from the top of said body into said channels for guiding block-moving means'into engagement with said blocks to move them into desired positions of adjustment.

5. A device as defined in claim 1 in which said record comprises a fiat body having parallel channels in the bottom thereof and said adjustable parts comprise blocks slidably disposed in said channels, there being openings extending I from the top of said body into saidchannels for under control of said record.

6. A device of the character described for automatically adjusting a member in accordance with a predetermined schedule, including: a record having consecutive groups of adjustable parts thereon, there being means whereby said parts may be adjusted to positions representative of desired positions of said member to be adjusted;

-means for producing a, movement of said record to bring said groups of adjustable parts individually into a plane of operation; actuating means controlled by the group of said adjustable defined in claim Lin which said v parts in said plane of operation for moving said 0 member to the position represented by said adjustable parts; and means selectively actuable to prevent operation of said actuating means without interfering with the movement of said record.

'7. A device of the character described for automatically adjusting the tuning element of a radio receiving set in accordance with a predetermined schedule, including: arecord having consecutive control parts thereon; means for movingsaid record to bring said control parts consecutively into a plane'of operation; and actuating means controlled by said control parts in said plane of operation for moving said tuning element to positions in accordance with the char- I acteristics of said control parts of said record. said actuating means comprising a movable part connected to said tuning element, engagement members controlled by said control parts of said record to move between inoperative and operative positions relative to said movable part, means for moving said movable part in response to the movement of an engagement member into operative position, and a plurality of stop means on the positions to which said tuning element may be adjusted for cooperation with said engagea. said movable part in positions corresponding to consecutively into a plane of operation; and actuating means controlled by said control parts in said plane of operation for moving said tuning element to positions in accordance with the characteristics of said control parts of said record, said actuating means comprising a rotatable drum connected to said tuning element, engagement members controlled by said control parts of said record to move between inoperative and operative positions relative to said rotatable drum, means for rotating said drum in consequence of the movement of an engagement member into operative position, anda plurality of stop means on said drum in positions corresponding to the positions to which said tuning element may be adjusted for cooperation with said' engagement members and stopping said drum in consequence of the engagement of an engagement member in operative position with its cooperating stop means.

9. A device of the character described for automatically adjusting the tuning element of a radio receiving set in accordance with a predetermined schedule, including: a record having consecutive control parts thereon; means for moving said record to bring said control parts consecutively into a plane of operation; and actuating means controlled by said control parts in said plane of operation for moving said tuning element-to positions in accordance with the characteristics of said control parts of said record, said actuating means comprising a movable part connected to said tuning element, engagement members controlled by said control parts'of said record to move between operative and inoperative positions relative to said movable part, a plurality of stop means cooperative with said engagement members; said stop means being disposed in adjacent paths on said movable part traversed by said respective engagement members, and means on opposite sides of said stop means in said paths operative, upon engagement with an engagement member in operative position, to cause movement of saidmovable part in a direction to produce engagement of the said engagement member in operative position with its cooperating stop means, such stop means being adapted to then stop said movable part.

10. A device of the character described for automatically adjusting the tuning element of a radio receiving set in accordance with a predetermined schedule, including: a record having consecutive control parts thereon; means 'for moving said record to bring said control parts consecutively into a plane of operation; and actuating means controlled by said control parts in said plane of operation for moving said tuning element to positions in accordance with the characteristics of said control parts of said record, said actuating means comprising a movable part connected to said tuning element, electrical drive means for ,moving said movable part forwardly or rearwardly, engagement members controlled by said control parts of said record to move between operative and inoperative positions relative to said movable part, a plurality of stop means cooperative with said engagement members, said stop means being disposed in adjacent paths on said movable part traversed by said respective engagement members, and switch means on opposite sides of said stop means operative, upon engagement with an engagement member in operative position, to cause said electrical drive means to move said movable part in a direction to produce engagement of the engagement member in operative position, with its cooperating stop means, said stop means being adapted to discontinue the operation of said electrical drive means in consequence of theengagement of said stop means with its cooperating engagement member.

11. A device of the character described for automatically adjusting the tuning element of a radio receiving set in accordance with a predetermined schedule, including: a record having consecutive control parts thereon; means for moving said record to bring said control parts consecutively into a plane of operation; and actuating'means controlled by said control parts in said plane of operation for moving said tuning element to positions in accordance with the characteristics of said control parts of said record, said actuating means comprising a movable part connected to said tuning element, electrical drive means for moving said movable part forwardly or rearwardly, engagement members controlled by said control parts of said record to move between operative and inoperative positions relative to said movable part, a plurality of stop means cooperative with said engagement members, said stop means being disposed in adjacent paths on said movable part traversed by said respective engagement members, contact plates on opposite sides of said stop means in said paths, and contacts carried by said, engagement members adapted to respectively engage contact plates in said paths when said engagement members are moved into operative position, said contact plates and said contacts being connected to said electrical drive means so as to energize said electrical drive means in a manner to produce movement of said movable part in a direction to carry a'cooperating stop means toward an engagement member which has been moved into operative position of control of said record.

12. A device of' the character described for automatically adjusting the tuning element of a. radio receiving set in accordance with a predetermined schedule, including: a record having consecutive control parts thereon; means for moving said record to bring said control parts consecutively into aplane of operation; and actuating means controlled by said control parts in said plane of operation for moving said tuning element. to positions in accordance with the characteristics of said control parts of said record, said actuating means comprising a mov-' able part connected to said tuning element, electrical drive means for moving said movable part forwardly or rearwardly, engagement members controlled by said control parts of said record to move between operative and inoperative positions relative to said movable part, a pluralityof stop, means formed of insulating material on said movable part cooperative with said engagement members, said stop means being disposed in adjacent paths traversed by said respective engagement members, contact plates on opposite sides of said stop means in said paths, and contacts carried by said engagement members adapted to respectively engage contact plates in said paths when said engagement members are moved into operative position, said contact plates and said contacts being connected to said electrical drive means so as to energize said electrical drive means in a manner to produce movement of said movable part in a direction to carry a cooperating stop means toward an engagement member which has been moved into operative position under control of said record, the engagement of such stop means with such engagement member interrupting the flow of electrical energy to said electrical drive means.

13. A device of the character described for automatically adjusting the tuning element of a' radio receiving set in accordance with a predetermined schedule, including: a movable part adapted to be connected with said tuning element, said movable part having primary and secondary paths of'-movement defined thereon; a primary stop means disposed in each of said primary paths of movement and being spaced at major intervals relative to the direction of movement of said movable part; a secondary stop means in said secondary paths of movement, said secondary stop means being spaced, in the direction of movement of said movable part, at minor intervals designating divisions of said major intervals; a primary engagement member for each of said primary paths of movement adapted to be selectively moved to engage said primary paths of movement; a secondary engagement member for each of said secondary paths of movement adapted to be selectively moved to engage said secondary paths of movement; electrically actuated drive means for moving said movable part forwardly or rearwardiy; primary control means associated with said primary pathsof movement operative on engagement of a selected primary engagement member with its,cooperating primary path to cause said drive means to move said movable part in a direction to bring the primary stop means in said cooperating primary path into-engagement with said selected primary engagement member; and secondary control means associated with said secondary paths of movement, opera- "tive on engagement of a selected secondary engagement member with its cooperating secondary path to cause said drive means to move said movable part to bring thesaid secondary stop means in said cooperating secondary path into engagement with said selected secondary engagement member, whereby said movable part will be stopped at a position offset from its position wherein said primary engagement member engaged its cooperating primary stop means.

14. A device of the character described for antomatically adjusting the tuning element of a radio receiving set in accordance with a predetermined schedule, including: a movable part adapted to be connected with said tuning element, said movable part having primary and secondary paths of movement defined thereon; a primary stop means disposed in each of said primary paths of movement and being spaced at ma- -jor intervals relative to the direction of movement of said movable part; a secondary stop means in said secondary paths of movement, said secondary stop means being spaced, in the direction of movement of said movable part, at minor intervals designating divisions of said major intervals; a primary engagement member for each of said primary paths of movement adapted to be selectively moved to engage said primary paths of movement; a secondary engagement member for each of said secondary paths of movement adapted to be selectively moved to engage said secondary paths of movement; electrically actuated drive means for moving said movable part forwardly or rearwardiy; primary switch means for controlling the flow of electric energy to said drive means operative on engagement of a selected primary engagement member with its cooperating primary path to cause said drive means to move said movable part in a direction to bring the primary stop means in said cooperating primary path into engagement with said selected primary engagement member, such engagement opening said stop means and stopping said drive means; secondary switch means for controlling the flow of electric energy to said drive means. operative on engagement of. a selected secondary engagement member with its cooperating secondary path to cause said drive means to move said movable part to bring the said secondaryv stop means in said cooperating secondary path into engagement with said selected secondary engagement member, whereby said secondary switch means is opened and said movable part is stopped at a position oflset from its position wherein said primary engagement member engaged its cooperating primary stop means.

CARL H. LANGLEY.

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