DE1279398C2 - Control device for self-collecting jukeboxes - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

PATENT LETTERING

Int. Cl.

G07f

German class: 43 b-39/04

Number:

File number: Registration date: Display day: Issue date:

P 12 79 398.5-53 (R 15392) November 11, 1954

3rd October 1968

4th June 1969

The patent specification corresponds to the patent specification

The invention relates to a control device for self-collecting jukeboxes.

There are already known electrical control devices for self-collecting jukeboxes in which after inserting a coin and pressing a key from one of the keys to select the piece to be played row of keys used by an electrical contact device pulses via a cable connection from the control device serving as a transmitter to one serving for the presentation of the selected piece, through the received impulses via relays, Rotary selector od. Like. Actuated receiver (z. B. disk changer) are directed and where next to the Selection buttons the categories of associated program sheet pages are arranged. ij

There is also a control device for jukeboxes in which the total number of to Selection standing pieces is divided into groups containing a certain number of individual pieces and the selection of the desired individual item ao is controlled by two electrical signals in the form of pulse trains, one of which is a pulse train for the group and the other pulse train characteristic of the desired piece from this group is, with a program directory in the form of an open book, the pages on which the The pieces available for selection are listed with their title and an index number, rotatably mounted are, as well as with selectable keypad, the number of which is smaller than the number of selectable Pieces.

With these known devices, there is a possibility that the user selects incorrectly and a group selector key is actuated incorrectly, since in these known devices with a book-like selection device group selector keys and code number keys have to be pressed. This disadvantage is supposed to be solved by the invention, and it is a control device to be created in which the Group selection is done automatically and necessarily correctly by turning the pages of the book.

This is achieved according to the invention in that the selection keys, which, when actuated in a manner known per se, initiate the delivery of one for each individual item cause a group of different pulse sequences, spatially immediately next to the designations on the open pages of the book Selectable pieces are arranged and that automatically at a time interval from the first pulse train the second, characteristic for the group pulse sequence is generated whose associated book page appropriate selection therefore inevitably Control device for self-collecting Jukeboxes

Patented for:

Rock-Ola Manufacturing Corporation, Chicago, J11. (V. St. A.)

Representative:

Dr.-Ing. H. Ruschke, patent attorney, 8000 Munich 27; Pienzenauer Str. 2

Named as inventor: David C Rockola, Chicago, JU. (V. St. A.)

Claimed priority: V. St. v. America November 16, 1953 (392 254)

is set that the book pages act mechanically on appropriate switches when turning the pages.

Other advantages emerge from the description with reference to the drawings. In the drawings is

F i g. 1 a schematic representation of a preferred embodiment,

F i g. 2 is a front view of a control device as shown on the left-hand side of FIG. 1 is shown,

F i g. 3 is a left side view of the control device according to FIG. 2,

Fig. 4 is a plan view of the control device shown in Fig. 2,

F i g. 5 one of the F i g. 2 corresponding enlarged view with the front cover removed and with washer plate shown in dashed lines, some parts being omitted for reasons of clarity,

F i g. 6 is a plan view of the program holder of the control device along line 6-6 of FIG. 5,

F i g. 7 one of the F i g. 6 similar view along line 7-7 of FIG. 5,

F i g. 8 is a vertical section along line 8-8 of FIG.

F i g. 9 is a vertical section along line 9-9 of FIG. 5,

Fig. 10 is a vertical section along line 10-10 of Fig. 5,

F i g. 11 is an enlarged front view of the lower one

909 623/11 "

Section of the control device according to FIG. 5 with the front plate of the counter and the Signaler,

FIG. 12 is an enlarged section along line 12-12 of FIG. 5,

13 is a rear view taken along line 13-13 of FIG. 5;

F i g. 14 is an enlarged side view taken along line 14-14 of FIG. 5, wherein some of the keypad and their lock rail in normal resting positions DAR to found

Fig. 15 a of FIG. 14 with a view corresponding to the pressed selection button in the working position, wherein the supplied hearing lock rail in full lines in an intermediate locking position and is illustrated in overall is dashed lines in key lock position,

16 is a horizontal section along line 16-16 in FIG. 14, and

F i g. 17 is a circuit diagram of the control device ao and the encoder.

The invention is shown in FIG. 1 shown in its application in a self-collecting jukebox, which has a control device 31 with a transmitter 32 in a wall housing. A device as to the taking place by means of the encoder selectively actuating a device, for example a disc player 33 has a receiver 34, which is electrically connected to the encoder 32 by a simple three letter cable 35th The F i g. 2 to 5 show the optionally actuatable control device 31 in an exemplary embodiment with a support frame 36 (FIGS. 4 and 5), which consists of one piece with a forward-facing base plate 37 (FIG. 12) and a cover 38 , which is slidably mounted in this frame. The cover 38 includes a centrally located and forwardly projecting curved window 39 (FIGS. 2 and 3) through which designations 41 can be easily seen, and also includes two parallel rows of openings which receive selectively actuable dial keys 42 , of which ten dial buttons are arranged in each row. A selection key 42 is assigned to each designation 41 on its outer edge. As can be seen from the circuit diagram in FIG. 17 seen for the control device, each selection button 42 actuates a double switch 43, 44 of known design when pressed. The control device 31 also includes the usual coin slot 45 and a lamp 46 (Fig. 2).

The insertion of a coin or several coins into the slot 45 causes an additive actuation of a coin counter 47 (FIGS. 5, 11 and 17).

In the F i g. 5 to 10 a new type of removable program holder 58 for the designations 41 is shown. The program holder is carried at its lower end by the lower horizontal housing section of a bracket 59 (FIGS. 5 and 7) and is held against forward movement, which is fastened to the lower plate 36 in some way. The program holder 58 has a frame 61 which ends on its sides in rearwardly directed vertical flanges 62 and which has upper and lower handles 63 directed forward and in the middle and with a similarly rearwardly directed handle 64 at the upper end (Fig. 6) is designed. The rear portions of the lower ends of the vertical side flanges 62 protrude downwardly into grooves 65 of the support bracket 59 (FIG. 7) in order to secure an exact center position of the program holder 58 on the lower plate 36 and to ensure a forward movement of the lower portion of the holder frame 61 prevent. The upper edge of the frame 61 has a forwardly directed retaining handle 66 (Figs. 5 and 8) which cooperates with a shouldered leaf spring 67 which extends forwardly from the upper portion of the console 59 and in any manner on this console 59 is attached. The bracket 59 may be a single sub-panel set up on the base 36 by some means in the plane of the bracket 59 to releasably hold the upper portion of the holder frame 61 against movement relative to the base 36. Above the spring 67 is a horizontally directed bracket 68 which limits the upward movement of the spring from the handle 66 when the handle is moved backwards (from left to right in FIG. 8) when the program holder 58 is placed on the base 36 . This not only prevents the upward bending of the spring 67 beyond its elastic limit, but also ensures that the frame 61 sits securely on the console 59 and prevents the program holder 58 or the pad 36 from locking in any position, except when the designations 41 in the in FIG. FIGS. 5 and 6 are visibly aligned with the dial buttons 42 as can be seen. A plurality of horizontal rails 69 are riveted or otherwise attached to the front surface of the frame 61 and are spaced apart from one another in the vertical direction at such a large distance that they slidably receive and hold back the designations 41. With the illustrated spacing of these rails 69 , each designation 41 retained by these rails lies vertically opposite two adjacent selection keys 42 and has two sets of identification numbers, each of which is aligned with one of the selection keys 42 in the horizontal direction. When controlling a self-collecting jukebox, ie with the intended task of the illustrated embodiment according to the invention, this arrangement significantly facilitates plate replacement, since the code numbers for the individual pieces present on both sides of each plate can be written in a single designation. As in Fig. 6, 7 and 9, these rails 69 retaining the designations can be omitted from the right-hand half of the frame 61 if only five program pages are present instead of six. The space available on this right side of the frame 61 can then be used for display purposes or similar purposes. In any case, the frame 61 forms left-hand and right-hand stationary book pages when it is correctly placed on the base 36 , with each book page or both book pages bearing a number of vertically spaced designations 41 , each containing two code numbers beginning with the associated dial buttons 42 are aligned.

The program holder 58 also has a plurality of rotatable book pages in the form of an open book, which are designated as two sheets 71 and 72 in the illustration. A vertical axis 73 spaced forwardly from the central portion of the frame 61 is on the upper handle 63

and the lower handle 63 (Figs. 5 to 7) attaches one or the other direction of their two left and is carried by these handles. At the lying or right-lying boundary positions, the inner edge of the book page 71, there are two downs. The helical springs 76 and 77 are therefore as stood upright hinge strips attached, which are close to the resilient toggle-like drives for the book pages The top and bottom edges go out and the axis 5 71 and 72 are connected. Each spring moves its book-73 rotatably encompass. The other book page 72 has page in its left position or in its right position, similar hinge strips 74 (Fig. 5) that are also around once the book page has been released by hand reach around the axis 73. Appropriate spacing is. Movement into this position depends on rings 75 are on the axis between the two whether the connection point of the front end of the lowest hinge strip 74 and the lower handle "> feather with his finger 78 to the left or right of the 63 stored, about vertical movements of the book axis 73 lies. If the book page 71 in opposite pages 71 and 72 to the frame 61 opposite to the pointer direction from its left-hand position beware. The book pages 71 and 72 can refer to this FIG. 6 turned by hand and is released, leads way together or independently around the helical spring 76 the book page to this SteI-the axis 73 between the left-hand position ¹ S development, since the front end are rotated at the moment of the and the right-hand position, so release to the left of one through the axis 73 and that it is above the left half or the right half of the vertical plane laid down the pin 79, of the frame 61. Each front face and If, however, the front connection point of the back surface of said rotary pages 71,72 has coil spring is located with the fingers 78 to the right of these rails 69 which receive the labels 41 ⁴⁰ perpendicular plane, draws the coil spring 76 and located similarly to on the frame 61 the book page on their darSchienen in dashed lines, so that the book pages 71,72 with the set position 71 a (FIG. 6) in their legal position, which is located above the book on the book-like page 72. The cover 38 of sheets with opposite book pages (Figs. 2 to 4) preferably has a horizontal groove. ^{The program 9} S 82 constructed in this way, which holds the finger 78 actuating the book page, can thus be opened by designations 41 according to one of the following three groups and enable access to these fingers. light.

I. Book pages 1 and 2, which are from the left frame switching devices (F i g. 5,6,9,10 and 17) are half 61 and the front page of the book page 71 provided that are from the rotatable book pages 71, 72 stand when this book page is automatically actuated in its right-hand 3 ° to an automatic open position; choice of those organs of the control device to bell. Book pages 3 and 4, which act from the back of the, which is assigned to the visible group of the designations book page 71 and the front of the book page 72 41. These switching devices consist, if these book pages are in their left-hand position from a plurality of switches, namely in the position shown or their right-hand position of the 35 version of two switches 83 and 84. These F i g. 5, 6 and 7 are, and switches 83 and 84 are usually closed III. Book page 5, which is from the back of the leaf spring switch, the book page 72 located in the usual way at its left-hand position behind the rear ends in layered isolated blocks 85, or book pages 5 and 6, which are stored from the back, with the the rear ends of the lower of the book page 72 and the right frame half 4 »leaf springs 86, 87 or the front ends of the leaf 61, if this frame contains the designation springs 86, 87 in the form shown in FIGS. 5.9 and 10 ersichtgen receiving guide rails 69 has. borrowed way are bent upwards. As part of the program holder 58, there is also a single block 85 in an expedient manner in the direction in which the movable book pages are placed. The switches 83 and 84 can be resiliently opened 71 and 72 in one or the 45 and held in this open position, other extreme left or right position holds as soon as their associated coverable book pages so that an error as to which selection the 71 and 72 When rotated to their right-hand positions, pressing a certain selection key 42 results in further progress. For this purpose, each book page has 71 and walking is excluded. This resilient 72 at its upper edge an upwardly directed holding device consists of two coil springs 76 so approach 88 and 89, which is from its outer edge in and 77, which is at its front ends with the upright a distance inward, to under the To swing the legs of the fingers actuating the book pages associated leaf springs 86 and 87 and 78 (FIGS. 5 and 6) are connected. These fingers 78 lift the spring when the book pages are in their form as approaches of the book pages 71,72 and have been turned to the right-hand positions. If end in a horizontally directed grip, which in 55, for example, the book page 71 is its left-hand Steider vertical plane of the associated book pages development and the book page 72 is its right-hand position 71, 72. The helical spring 76 is absorbed by it, as shown in FIGS. 5 and 6, the lower end is connected to a vertical pin 79, so the extension 88 is located on the side lying upward from the handle 64 to the rear from the switch 83, and the switch 83 is, as in FIG underside of the frame 61 and to the right of the axis 73 6o in F i g. 10 shown, closed while stretching. The helical spring 77 is located in a similar set 89 under the leaf manner which actuates the switch 84 at its rear end with a similar pivot spring 87 and holds the switch 84 open (FIG. 9). fen 81 connected to the left of the axis 73. The rotary The position 71 shown in dashed lines α movement of the book pages 71 and 72 oscillates on the Buchscitc 71 in F i g. 6 shows how the extension 88 in this way raises the front ends of their associated * s similar to the leaf spring 86 when the coil springs 76 and 77 from one side of their reversible book page 71 from their coil spring axis 73 to the other side of the axis, so that this 76 rotated backwards or in the counterclockwise direction Schfaubenfcdern effectively your book pages in the. So if both book pages 71 and 72 are located

in their right-hand positions to expose the designations 41 of Group I mentioned earlier, so both switches 83 and 84 are open. Are the book pages in opposite positions according to FIG. 6, so that they release the designations of group II, «o switch 83 is closed and the switch 84 open. Both switches 83 and 84 are closed as soon as the book pages 71 and 72 are in their left-hand positions are in which the designations 41 of Group III are exposed.

The control device 31 includes a motor 91 (Fig. 11 and 17), in a known manner in a Auxiliary frame is mounted, which consists of two parallel plates 92 (Fig. 12), which with the installation of spacers by means of screw bolts 93 (Fig. 11) are attached and are supported by the latter on a frame plate 94, which consists of the plate 37 (Fig. 12) protrudes upwards and is attached to this plate. A gear drive is connected to the rotor of the motor 91 and has a horizontal shaft 96 drives, which is mounted in the subframe plates 92, penetrates the front plate and protrudes forward (Fig. 12). The front end of the shaft 96 carries a contact arm 97 (Figs. 5 and 12), one after the other first two contacts 98 and then two groups of contacts 99 and 101 wiped, on each a complete rotation of the shaft comprising a working cycle. The various contacts 98, 99 and 101 are supported by an insulating washer 102 on which they are circumferentially spaced from one another. This disk 102 is on the front Subframe plate 92 (Fig. 12) mounted. The shaft 96 carries three cams 103, 104 and 105. The front one Cam 103 actuates a lever 106 (FIG. 11) which is in contact with the cam by a spring 107 is held. A pawl 108 is rotatably mounted on the outer end of the lever 106 and is in Working position resiliently held by a spring .109. One located on the pawl 108 rearwardly directed nose (FIG. 12) cooperates with a unit ratchet wheel 54 of the coin counter 47 and is driven by the spring 107 near the end every duty cycle (if cam 103 allows it) is raised by one unit from the counter subtract, so that the unit ratchet wheel 54 is rotated by one step in the pointing direction, as seen in FIG will. The cam 103 and the components 106 and 109 thus form the clearing device which clears the counter.

The intermediate cam 104 actuates a lever 111 which is rotatably mounted on an axle shaft 112, the is in turn fastened at its rear end to the frame plate 94 (FIG. 12). In the normal Rest position (Fig. 11) of the parts at the end of a work cycle, the lever 111 is in an upper Position held by the cam 104 to open a switch 113, which in a known manner the frame plate 94 is attached.

The rear cam 105 located on the shaft 96 has a cam tip 114, a cam rise 115 and a cam base 116 (Fig. 11) connected to the lower end of a downward arm 117 of an angle lever 118 work together, which blocks and releases a key lock. The angle lever 18 has one between its ends forward hub section 119 which is rotatably mounted on the axle shaft 112 (FIG. 12). the Arm 121 of the angle nebula 118 protrudes backwards through an opening in the frame plate 94 and ends in an upright finger 122 which lies under the transverse portion of a key lock bracket 123 and usually holds this bracket in an upper S working position. The bracket 123 (Fig. S and 12) ends in forward-facing arms that are attached to forward-facing end flanges 125 at pivot point 124 the frame plate 59 are rotatably mounted, which have lateral lugs 126. Each lug 126 of the bracket 123 ίο (Fig. 12 to 15) is under the lower end of a vertical key locking rail 127, the one of the two groups of ten dial buttons 42 is assigned

Each of these groups of dial keys 42 has one

is a front vertical frame plate 128 and a rear vertical frame plate 128 (Fig. 15), which are spaced apart by upper and lower spacer plates 129 and fastened to one another. The front gesture plate 128 is on the side in a known manner

ao lugs 131 (FIGS. 5 and 12) of the end flanges 125 of the frame 59 attached. Each dial key 42 has one Key shaft 132, which can perform a limited horizontal sliding movement in a slot in the frame plate 128 in the usual way in order to

a $ to operate the switch 43,44. The shaft 132 is urged forward by a spring 133 (FIG. 15). The key locking bar 127 of each dial key group penetrates intermediate slots 134 of the associated key shafts 132. These slots 134 together with shorter front slots also form a cross bar 135 in the shaft 132 for cooperation with an associated cam and one Key locking and locking tab 136, one of which has a tab on a forward and downward ge aimed at the leading edge of each latch lungsschiene 127 is formed near each key shaft. Around the lower end of each rail 127 is a spring 137 below the spacer plate 129, which the Rail 127 pushes into a lower key lock position, those in dashed lines in FIG. 15 is shown. FIG. 17 shows a schematically represented circuit diagram for the control device 31 and its Character generator 32. This circuit contains a power line 138, which is preferably an alternating current of 24 volts Power supplies, a pulse line 139 and a common ground line 141. These three lines 138, 139 and 141 are connected to the same lines of the receiver 34 (FIG. 18) in a known manner by means of the simple three-wire cable 35 (Fig. 1) connected.

From Fig. 17 right side of the figure it can be seen that the power line 138 via a rectifier with the various coin switches 48 of the counter 47 is connected in parallel. The other terminals of these usually open coin switches 48 are

ss are each connected to one terminal of their associated meter coils 49, the other terminals of which are connected to the ground line 141. One terminal of the motor 91 is connected to the power line 138, while the other terminal is connected by means of a line 142 to one terminal of a first counter switch 56 and to one terminal of the switch 113 for full cycle. The other terminal of the normally open switch 113 is connected to the common ground line 141. The other terminal of the normally open counter switch 56 is connected to the two motor contacts 98 located on the disk 102 via a conductor 143. A conductor 144 is connected to the first terminal of the counter

9 10

switch 56 and conductor 142 connected to and extends so interrupts the corresponding open switch 44 via the two keys Bank rows to cooperate with the the last-described circuit to all the Wählaußenliegenden or front push-button switch 43 keys 42 higher numbers assigned to contacts in a manner described later together 99 to disable . For example, when the dial key is working. 5 42 no. 1 that selection key, the position is locked in a depressed As seen from the left side of Fig. 17 it can be seen, then all contacts 99, between power line 138 and common ground with the exception of the last three contacts 99 which the circuit 141 turned on, a transformer 145, DES numbers 20, 21 and 22 have, by opening the sen secondary winding with one terminal of the selection key 42 no. 1, members of the switch 44 the lamp 46 and to off with a plurality of lamps 146 for loading how this is connected in dashed lines in the lighting of the program. The other Fig. 17 is shown. As a result, only three terminals of these lamps 146 are connected to the common pulses through the pulse line 139, namely then, ground line 141 . When the switching arm 97 is attached one after the other to the housing of the control device 31 , the lamps are in contact with 99 nos. 20, 21 and 22. In other words, about the coin slot 45 and the program holder 15 words: the first series of pulses resulting from the press 58 to illuminate. A conductor 147 connects the second of any dial button 42 , consists of a clamp of lamp 46 over the usually series of pulses through pulse line 139, and closed push-button switch 43 to one, though in a number two greater than the terminal of a usually open second counting number indicated by the pressed dial button works sounder 57. The other terminal of the switch is so. Pressing two or more 57 at the same time is connected to the common ground line 141. Dial keys 42 in the same dial key group or the. In the lower middle section of FIG. 17, only one pulse can be seen in both groups of dialing keys that the impulse line 139 results in the one corresponding to the depressed dialing key 42 of the lower terminal of the switch 83 of the first book page or the number depressed pressing the bound, while the other terminal to this switch the lowest number is given "5 dial key 42 because ters both at the one terminal of the switch 84 for the this last-mentioned selection key 42 associated with the second cover and by a conductor 148 to switch 44 switches off all contacts 99 which are assigned to the second contact 101, ie the second contact , dialing keys 42 with higher numbers from the left in the group of six shown con. The release of the selection keys 42 under Einwirtakte 101 is connected. The next 30 nach'rechts overall effect of the cam 105 may at any time Superior contact 101, ie, the third contact 101 is carried point during the operating cycle, after means of a conductor 149 to the other terminal of the contact arm 97 to the contact 99 No 22 connected over switch 84 for the second Buchscite. Who left. Then, in each work cycle, the contact arms 97 do not perform any work by means of a line 151 to the switches 43, 44 , with the exception of a common earth line 141 being applied. The rear 35 that close the switch 43 to the standby pushbutton switch 44 to energize the of the lamp with the Num- 46 again, provided that the selection key designated mer 1 is operable 42 counter is contains 47 still positive value units so from point A with the disk 102 with the on this that the switch 57 remains closed.
Disc located three last contacts 99 of the As can be seen from Fig. 17, the distance between the second pulse series is connected. These contacts are labeled 4 » see the last contact 99 No. 22 of the first standards 20, 21 and 22 . In a similar manner to the contact group and the first contact 101 of the second, the conductors 152 bind the other pushbutton scarf contact group greater than the distance separating the verter 44 from those contacts 99 which are large, different contacts 99 from one another. The letters are designated which correspond to the push-button importance of this spacing arrangement of the switch. A conductor 153 switches the contacts marked for 45 contact arm 97 , the normally closed push-button switch 44 of the will emerge clearly from the description below. Depending on the two groups of dialers in series. the group of designations 41, which has been selected by the contact user during each work cycle or by actuating the arm 97 with its reversible book pages 71 and / or 72 visible rotation, seen in FIG. 17, one after the other every 5 ° has become, either both switches 83 and 84 contact 99 of the first pulse series and then to each are open or closed, or switch 83 is geContact 101 of the second pulse series on. If they are closed and the switch 84 is open, as this is the selection button 42 No. 20, the selection button which has already been described. When both book pages 71 have been made, all contacts 99 ground the contact and 72 take their right-hand positions, so tact arm 97, if this contact arm one after the other, 55 that the designations 41 of group 1 are visible, applies to the contacts, so that the pulse so both switches 83 and 84 are open. If line 139 transmits a first series of pulses selected from Group II, switch 83 is composed of twenty two pulses. This is closed by the and switch 84 is open. Both switch contact arms 97 have the effect that twenty-two contacts 83 and 84 are closed when the designation elements 99 are present, all of which are active when 60 of group III are visible. The character of the first pulse series in each example of the selection key 42 No. 20 in the depressed position depends solely on the contact arm 97 via which selection key 42 has been pressed. Line 152 belonging to it, the rest closed so that the impulse given in the first series of impulses is push-button switch 44 and conductor 153 and which is the same when pressing any of the dialing connections from point A of the dialing key 42 No. 1 65 keys 42, regardless of whether Which group of assigned switches 44 to impulse line 139 to designations 41 is clear to see and how to ground. Is any of the other dial buttons with state switches 83 and 84 are on. These lower number switches 83 are locked in the depressed position, and 84 determine the character of the second

Claims (5)

Pulse series given pulse automatically due to the respective positions of the book pages 71 and 72. If group I is selected and both switches 83 and 84 are open, then no pulses are transmitted after these pulses of the first pulse series. If group II of the designations 41 is selected and the switch 83 is closed, the second pulse series consists of a pulse which, when the contact arm 97 is grounded, runs from the pulse line 139 via switch 83, conductor 148 and the second contact 101 as soon as the contact arm 97 is on this contact 101 is present. If group III is selected, in which both switches 83 and 84 are closed, the second pulse series contains two pulses, the first of which runs as described, while the second> s is due to the fact that the contact arm 97 comes into contact with the third contact 101 is grounded and in this way the circuit from the pulse line 139 via the switches 84 and 83, line 149, switching arm 97 and conductor 151 to the common ground line 141 produces. Generally speaking: it is necessary to establish a constant interval between the first pulse train and the second pulse train in order to evaluate the pulses occurring at the receiver 34 properly. As can be seen from the above, this is achieved by means of the described arrangements in that the contact arm 97 is rotated in the counter-clockwise direction and by the contacts 99 with the push-button switches 44 in reverse order relative to the proximity of the selection keys 3 "42 and the electrical Connections between their associated switches. In the practical implementation, the distance between the last touched contact 99 and the first work contact 10 relative to the speed of rotation of the contact 97 is chosen so that the time interval between the last pulse of the first pulse series and the first pulse of the second pulse series, if at all, then always that is the same and is the fifth part of a second in the preferred embodiment. At the same time, the time interval between the pulses in the first series of pulses is a twenty-fifth second and is determined by the distance between the contacts 99 and the rotational speed of the contact arm 97. This same interval is maintained between the pulses of the second series of pulses and is determined by the distance between adjacent contacts 101 of this series. so claims: 1. Control device for self-collecting jukeboxes in which the total number of available pieces in a certain number of individual pieces containing groups is divided and the selection of the desired individual piece by two electrical impulses is controlled in the form of pulse trains, one of which is a pulse train for the group and the other pulse train is characteristic of the desired piece from this group, with a Program holder in the form of an open book, the pages on which the one to choose from standing pieces are listed with their title and a code number, are rotatably mounted, as well as with selectable buttons, whose Number is smaller than the number of selectable pieces, characterized in that the selection keys (42), which when actuated in a known manner, the delivery of one for each Individual pieces from a group cause different pulse sequences, spatially immediately next to one another the designations (41) on the open book pages (71, 72), the selectable ones Pieces are arranged and that at a time interval from the first pulse train automatically the second pulse sequence characteristic for the group is generated, the selection of which corresponding to the assigned book page is inevitably ensured that the book pages (71, 72) act mechanically on corresponding switches (83, 84) when turning the pages. 2. Apparatus according to claim 1, characterized in that the program holder (58) as a unitary component can be removed from the device. 3. Device according to claim 1 or 2 ,. characterized in that the book pages (71, 72) are provided with lugs (88, 89) for actuating the switches (83, 84). 4. Apparatus according to claim 1, 2 or 3, characterized by springs (76, 77), each Push the book page (71, 72) into one of two positions. 5. Device according to claims 1 to 3, characterized by a pulse device (97 to 101), which consists of switches (44) connected in series, which are switched by associated selection keys (42) and each of which Switch for generating a first pulse train is connected to one contact (99) of a first row of contacts, the contacts of which are one have the same distance from one another, also from an impulse line (139) connected to the last contact of this first row of contacts, in which the from the book pages (71,72) operated switch (83,84) are in series and each switch to Generating a second pulse train connected to a second row of contacts (101), the contacts of which have the same spacing as the contacts of the first row of contacts, with the however, last contact of the first series of contacts from the first contact of the second series of contacts has a greater distance than the mutual distance between the contacts, and from one electrically grounded contact arm (97) which, upon actuation of any dial button (42) of a Motor moves and successively with the contacts (99,101) of the first and the second row of contacts is brought into contact to the first or to generate the second pulse train. Considered publications: German Patent No. 723 025; U.S. Patents No. 2,624,795,2621,241, 606 640, 2 545 362, 2 489 782.2 378 557, 344,914.2 281435. For this purpose 2 sheets of drawings 09 619 /} 0 9. U O Bundeidruckcrri Berlin