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Патент USA US2411612

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Nov. ‘26, 1946. ‘
Filed June 20, 1940
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11 Sheets-Sheet 1
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El 1
Patented Nov. 26, 1946 _
James A. Boyajian, Chicago, 111., assignor to J. P.
Seeburg Corporation, a corporation of Illi
Application June 20, 1940, Serial No. 341,433
2 Claims. (01. 177-353)
This invention relates to automatic phono-
of the unit‘;
‘graphs and particularly to a selector therefor
which may be located in remote relation to the "
phonograph to effect the selection of any one
One of the objects of the invention is ‘to pro
on the line"|—-‘| of Fig. 1;
. vide a remote control unit for automatic pho
nographs which is adapted to be rendered op
V erable upon the insertion of a coin or coins.
A further object of the invention is to provide
an improved remote ‘control unit for automatic
Fig. 6, is a fragmentary transverse sectional
view ofthe upper end of the remote control de
vice, the section being taken on the line 6-6
of Fig. 4;
Fig. "lis a similar view, the section being taken
or a plurality of selected recordings which the.
user may desireto play.
to disclose mechanism adjacent the rear side
Fig.8 is afragmentary sectional detail of a
10 cam mechanism, the section being taken on the
> line 8-8 of Fig. 4;
Fig. 9 is a sectional detail view of one of the
selector bars and associated mechanism, the
phonographs which is adapted to be installed in
section being taken on the line 9-9 of Fig. 11,
the building in which the phonograph is located,
the bar being shown in its actuated position;
and to be connected to the phonograph without
~ Fig. 10 is a similar view taken on the line
the necessity of installing special wires between
ill-Ill of Fig. 11, showing a‘selector bar in
the unit and the phonograph.
actuated position;
A further object of the invention is to provide
Fig. 11 is a‘ longitudinal sectional view of the
an improved remote control unit for automatic
upper end of one of the switch assemblies, the
phonographs which is adapted to transmit a 20 section being taken on the line ll--H of Fig. 2;
de?nite number of electrical impulses corre
Fig. 12 is a similar view, the section being
sponding to an individual recording to be played.
taken on the broken line l2-—l2 of Fig. 1;
. A further object of the invention is to provide
Fig. 13 is a longitudinal sectional view through
an improved control for automatic phonographs,
one of the switch assemblies, the section vbeing
including a remote control unit which is adapted 2,5
taken on the line |3—I3 of. Fig. 2;
to control the phonograph unit by thetransmis
'sion therebetween of series of various numbers
of impulses of highfrequency.
Other objects, advantages and capabilities of
the invention will appear from the following de
Fig. 14 is a similar view, the section being
taken on the broken line l4--l4 of Fig. 2;
Fig. 15 is a wiring diagram showing the elec
30 trical system of the remote control unit;
Fig. 16 is a wiring diagram showing the elec- I
scription of preferred embodiments thereof with
trical system at the phonograph;
reference to the accompanying drawings, in
Fig. 15A is a fragmentary wiring diagram
showing the modi?cation of Fig. 15 to adapt the
Figure 1 is a front sectional elevation of my
remote control unit for operation by space trans
improved remote control unit taken on the line 35
.l-l of Fig. 2_, the outer cover thereof being
Fig. 16A is a fragmentary wiring diagram
shown in section and the title holding frame
showing the change of Fig. 16 to adapt the
being removed to disclose mechanism normally
located behind the title holding frame;
phonograph for receiving signals by space trans
mission; and
Fig. 2 is a sectional plan view of the remote
Fig.‘ 17 is a sectional detail and wiring diagram
control unit, the section being taken on the line
showing the manner in which the selector con
2-2 of Fig. 1, the cover being cut away to show ,
trols the phonograph motor.
Referring to the drawings, my improved re
the interior mechanism;
Fig. 3 is a sectional plan view of'the remote 45 mote control unit comprises a rear base plate It]
upon which is mounted a receptacle ll whereby‘
control unit, the section being taken on the line
a coin of suitable denomination may be inserted.
3-3 of Fig. 1;
The coin passes into a coin selector I! of well
Fig. 4 is a front elevational view of the upper
known type which is mounted on the base plate
portion of the remote control unit, portions of
the cover, window, title holding frame, and con 50 l0.- Rejected coins pass from the selector
through a discharge opening l3 into a rejected
tact disc being broken away and other portions
omitted to disclose interior mechanism;
coin pocket ‘M. A magnetic slug is retained in
the selector by a magnet l5 and may be dis
charged therefrom by means of a button .I 6 which
Fig. 2 in which the contact disc and the left-hand
suitably ‘be mounted in the base of the coin
switch assembly and associated parts are omitted
Fig. 5 is a similar view taken on line 5—5 of
3 .
receiving member II. This button is adapted to
cooperate with a lever I‘! pivotally mounted on
a bracket |8 which is also secured upon the base
plate I0.
54 which is mounted in central relation with re
spect to the disc 45, the contacts 46 and the
ring 50. The shaft 54 is rotatably mounted in
a boss 56 of the bracket 31, the disc 45 being
rigidly mounted on this boss by suitable screws
51. The end of the shaft 54 remote from the
The lever I1 cooperates with a lever l9 pivotally
mounted on the coin selector l2 and the lever |9
collar 53 rigidly carries a bevel gear 58 which
cooperates with an arm 26 in the coin selector
meshes with a similar bevel gear 59 which is
which clears the magnetic coin away from the
mounted on the shaft 34.
magnet and discharges it through the opening
Rigidly mounted on the shaft 34 ‘is a collar 60
|3 into the rejected coin pocket l4. An accepted 10
which is provided with a cam member 6|. The
coin passes downwardly from the coin selector
cam member 6| (Fig. 7) is adapted to engage a
through a discharge opening 2| from which it
projection 62 on a bar 63 which is mounted for
drops into a coin box 22. This coin box is sub
vertical movement. This bar 63 is bifurcated at
its lower end and the bifurcated portions are
located on opposite sides of the shaft 34, as
shown in Fig. 8, these bifurcated portions being
in Fig. 5.
located between the boss of the collar 69 and
An accepted coin descending through the dis
the hub of the gear 39.
charge opening 2| engages and swings a light
The upper end of the bar 63 is connected to a
arm 24 which is pivotally mounted on ears 25 20
pivot 64 which passes through slots in over
carried by a bracket 26 which is mounted on
lapping ends of two levers 65 which extend from
one side of the coin selector |2. Also mounted
the center of the unit to positions adjacent the
on the bracket 26 is a leaf switch 21. When
sides thereof.
The levers 65 are pivotally
the arm 24 is swung to the right as viewed in
Fig. 5, the switch 21 is closed momentarily.
25 mounted on posts 66, one of which posts is
mounted on the base plate Hi, the other being
Upon the lower end of the bracket 23 is
mounted on a bracket 86 carried by the base
mounted a chassis member 28 (Fig. 1) which
plate In. As best seen in Fig. 4, the levers 65
serves as a support for a transformer 29 and a
are located at the top of the device and their
thermionic tube 30, an electrolytic condenser 41,
a shielded oscillator coil 48, a shielded resonant 30 outer ends carry forwardly extending abutment
members 61. The outer ends of the levers 65
?lter coil 49, and associated electrical elements,
are biased upwardly by springs 68 which will
the function and operation of which will here
hereinafter be described. As a result of the
inafter be fully described.
pressure of these springs, the bar 63 is normally
The bracket I8 serves as a support for a three
pole switch 3|, a relay 32 and a motor 33 (Fig. 1). 35 pushed downwardly except when it is positively
elevated by the cam member 6|.
A shaft 34 (Fig. 3) is mounted on a bearing 35
Upon the inner side of its pivotal support one
carried by the frame of the motor 33 and on a
of the levers 65 carries a pin 69 (Fig. 4) which is
bearing '36 carried by a bracket 31 which is
stantially housed in a lower bracket 23 which is_
also mounted on the base plate l0, the coin box
being slidable into this bracket from the right
rigidly mounted on the-bracket 23 (Fig. 4). The
adapted to cooperate with a strip of insulation
pinion 38 of the motor 33 is connected to a gear 40 10 carried by the upper leaf of the three-leaf
switch 3|. When the bar 63 is elevated by the
39 rigidly carried by the shaft 34 through a
cam 6| as shown in Fig. 4, the pin 69 is elevated
train of reducing gearing 40 shown in Fig. 4.
and the upper leaf of the switch 3| is raised up
The elements of this gearing are mounted on
wardly away from the second leaf. The second
the shaft 34 and on a stud shaft 4| carried by
leaf is biased away from the lowermost leaf so
the motor 33.
that the three leaves of the switch 3| are sepa
At its innermost end the shaft 34 carries a
rated when the vbar 63 is elevated. When, how
crank arm 42 which is connected by a link 43 to
ever, the projection 62 on the bar. 63 clears the
a counter 44 so that this counter registers the
cam 6| and the bar 63 moves downwardly, the
number of revolutions made by the shaft 34.
upper leaf of the switch 3| moves downwardly
The counter 44 is mounted on the bracket 31,
into contact with the second leaf and carries this
as shown in Fig. 4. The bracket 31' has rigidly
second leaf downwardly into contact with the
mounted thereon a contact disc 45 of insulating
third leaf so that the switch 3| is closed when
material. This disc carries a plurality of con
the bar 63 is in its lower position.
tacts 46 which are spaced at equal distances
The armature of the relay 32 is connected by
around the disc 45, leaving a relatively blank
means of a stripof insulation ‘H to the lower leaf
space at the lower portion of the disc, as shown
of a leaf switch 12 (Fig. 6). When the relay 32
in Fig. 4.
is energized, the upward movement of the arma
These contacts may exceed the number of
ture closes the switch 12. When the armature is
selections for which the device is intended. Thus,
in its lower position as shown in Fig. 6, a projec
the device illustrated has a capacity of twenty
tion 13 carried by the armature engages the edge
selections and the number of contacts 46 may
of an inwardly turned projection 14 on a bell
suitably be twenty-?ve. The ?rst ?ve contacts
crank lever 15. This lever is biased in clockwise
on the left of the vacant space as viewed in Fig.
direction, as viewed in Fig. 6, by a spring 16.
4, are connected together in the manner shown
When the relay 32 is energized, the armature
moves upwardly, carrying the projection 13 above
the inturned end 14 of the bell crank lever 15.
This inturned end of the lever 15 then moves
engaged by two arms 5| and 52 (Fig. 7) which
beneath the projection 13 so that the armature
are rigidly mounted upon a collar 53. The arms
5| and 52 make contact with each other and are 70 is held in its upward position and the switch 12 is
held closed until the bell crank lever 15 is swung
mounted on the collar>53 with the aid of pins 54a
in counter-clockwise direction, as viewed in Fig.
of insulating material. Their hub portions are
6. When that movement of the bell crank lever
insulated from the collar 53 by suitable insula
15 takes place, the armature of the relay 32 moves
tion 55.
downwardly and the switch 12 is opened.
The collar 53 is rigidly mounted upon a shaft
in the wiring diagram of Fig. 15. Upon the disc
45 is mounted a contact ring 5|]. The contacts
46 and the contact ring 50 are adapted to be
frame, being slidably mounted for axial move
The bell crank lever 16 is intermittently moved
by means of a cam member 11. which is rigidly
carried on the right-hand end of shaft 34, as
' ment in suitable openings I01 and I06 in the end
frame members I02 and I03. The bar I06 ex
tends freely through suitable openings in the in
viewed in Figs. 5, 1 and .4. The cam member 11
carries a projection 18 which is adapted to en
termediate frame members I04.
The upper reduced end of the locking bar I06
gage a projection 19 carried on the horizontal
68 previously referred to. This >
carries the spring
arm of the bell crank lever 15 (Fig. 6). It will
spring bears against the upper side of the end
readily be understood that on each revolution of
frame member I02 and against a collar I09 rigidly
the shaft 34 the engagement of the projections
mounted on the upper end of the locking bar I06.
18 and 19 swings the bell crank lever 15 in the 10 The upper ends of the locking bars are adapted to
counter-clockwise direction as viewed in Fig. 6, so
be engaged by the forwardly extending abutment
that the armature ofthe relay 32 is free to move
members 61 previously referred to. It will readily
downwardly and open the switch 12.
be understood that when the cam 6| moves the bar
It may here be noted that in the normal con
upwardly, the locking bars I06 will be de
dition of the machine the arms 5| and 52 are 15 pressed and when the cam 6| clears the projec-.
projected downwardly as shown in Fig. 4. The
tion 62 the springs 68 will bias the locking bars
‘ bar 63 is held at its highest position by the cam
I06 upwardly again.
projection 6| as shown in that ?gure and the cam
Each switch assembly comprises a plurality, for
projection 18 is located from its operating posi
example in the present device 10, of selector bars '
tion by a distance of 90 degrees as shown in Fig. 6.
_IIO. As best shown in Fig. 9, each selector bar
Upon the outer ends of the posts 66 previously
referred to is rigidly mounted ahorizontal bar
80. The intermediate portion of this bar is turned
comp-rises an outwardly directed shank portion
I I I which is guided by an opening I I2 in the outer
rail I00. It also comprises a body portion II3
forwardly to provide a horizontal flange 8 I . This
which is provided near its inner end with an en
?ange is provided with an opening 82 (Fig. 2)
larged opening II4 through which extends the
to serve as a guide for a locking bar 83.v The ex
rear rail MI. The body portion II3 includes an
axia1 projection H5 which projects forwardly in
to provide two vend portions 84. Two posts 85
guiding relation through an opening H6 in the
project outwardly from the bracket 23 and sup
rear rail IOI. The body portion II3 also com
port a horizontal'bar 61, which is located in the 30 prises an element I I1 which projects inwardly into
same plane as the outer ends 84 of the bar 80.
the opening I I4 in alignment with the projection
As shown in Fig. 1, the bar 81 is provided with a
II5. A coil spring H8 is secured in position by
central enlargement 80 which is provided with an , the
aligned projections H5 and H1. This spring
arcuate recess 89 for the reception of a disc 90
bears against the rear rail IN and against the
(Fig. '3) carried on the inner end of the rotatable
forward edge of the opening “4 so that it biases
member 9I of a tumbler lock 92. This lock is
the selector bar I I0’ outwardly.
mounted by means of a bracket 93 (Figs. 1 and
The locking bar I06 extends through openings
3) upon the central portion 88 of the bar 81. The
II9 provided in the selector bars “0. When the
lower end of the locking bar 83 is secured to the
disc 90 by means of a pivot pin 94. The lock 92 40 device is at rest the bar I06 occupies its full line
position shown in Fig. 11, the abutments 61 being
tremities ofthe bar 80 are displaced forwardly
is so arranged that the key may be withdrawn _
therefrom at two positions at right angles to each
Fig. 1, the bar 83 is projected upwardly in front
of a bar95 which is mounted on the cover 96 and
which will hereinafter be more fully described.
When the rotatable portion of the lock 92 is ro
tated in the clockwise direction through 90 de
- grees, as viewed in Fig. 1, the bar 83 is drawn
downwardly clear .of the bar 95. A similar bar
63’, also pivotally connectedto the disc 90 and
guided in an opening in the chassis member 218,
cooperates in the same manner and simultane
ously with a bar 95' mounted on the lower end of
the cover 96.
then in their lowermost position. Each, bar I06v
carries a plurality of locking detents I20, one of
which is adapted to cooperate with each selector
45 bar I I0. When the bar I06 is in its depressed po
sition, that is, the full line position in Fig. 11, the‘
detents I20 are clear _of their bars IIO. When,
however, the bar I06 is released so that it may
move upwardly, the locking detents I20 come into
50, cooperative relation with their bars I I0.‘
In the case of-a bar IIO which has not been
moved inwardly by its button I2I carried on the
outer end of the shank III, for example, the
. other. When the lock is in the relation shown in
lower bar I I0 shown in Fig. 11, the upward move- I
' 55 ment of the bar I06 moves the detent I20 into the
The bracket 93 serves as a support for/a switch
91 which is adapted to be actuated by a suitable
key which can be inserted from the front of the
' v
upper end of the opening H9. The detent I20 is
provided on its forward side with a flat face so
that it is not possible to push in another button
I2I until the locking bars I06 are again depressed
On each side of the device is mounted a switch 60 by the levers 65. In the case of an actuated bar
IIO which has been manually pushed inwardly,
assembly 99. ‘These switch assemblies are simi
for example, the upper bar. I I0 shown in Fig, 11,
lar, with the exception that the contacts are lo
the detent I20 enters a locking aperture I 22‘ pro
cated on the inner side of each assembly. Each
in alignment with and immediately on the
' switch assembly comprises a frame which in
cludes a front rail I00, a rear rail IOI, an upper. 05 outer side of the aperture H9. Consequently the
frame member I02, a lower frame member I03‘
actuated bar H0 is held inwardly until the bar
(Fig. 1), and intermediate frame members I04.
The frame members I02, I03 and I04 are rigidly
I06 is again depressed by' the abutment 61. Each
locking bar IIO carries a resilient washer I23
wardly displaced ends 84 of the bar 80 and on the
ends of the bar 81 by means of screws‘ I05 which
extend through these ends and are threaded into
the ends of the front rails I00. A locking bar I06
extends longitudinally through the center of the 75
forward position.
which is adapted to engage the inner'side of the
connected to the front and rear rails I00 and- I 0 I.
The switch frames are mounted on the out 70 front rail I00 when the bar H0 is in its outer or
Each locking bar
I 24 mounted on its
sulation carries two
located in forward
IIO has a strip of insulation
inner side. The strip of in
contact members I25 and I26
and rearward positions, re
spectively. Each switch assembly comprises a
strip of insulation I21 which extends along the
length of the assembly adjacent to and in spaced
relation to the strips 124. The strip of insulation
I21 is rigidly mounted on suitable projections on
the end frame members I82 and I03 and on’the
intermediate members I04.
Upon the strip 121 is mounted a series of con
tacts I28, one for each bar H8. The contacts I28
the motor is connected to a power line I38 to
which is connected a conductor I39 and one side
of the coin actuated switch 21. The other side
of the switch 21 is connected to the relay 32.
The other side of the relay 32 is connected by
a conductor I40 to ‘the other power line Iii. The
conductor ~829 is connected to one side of the
relay actuated switch 12, the other side of which
is connected to a conductor I42 which is con
of both switch assemblies are connected together 10 nected to a conductor I43. The conductors I42
and I43 are connected through the switch 91
to a common line 528. As best seen in Fig. 12, the
contacts I28 are always in engagement with the
contacts I25 on the strips I24. When a bar H0
is moved inwardly by its button I2 5, for example,
the uppermost bar in Fig. 12, its contact I25 is
brought into engagement with the corresponding
which is the main switch of the device to the
power line MI. The conductor I40 is connected
contact I30 mounted on the strip I21. The con
tacts I30 of both switch assemblies are connected
together to a common line I35. It will thus be
seen that when any button H8 is pushed in
wardly, the conductors I28 and I3I are connected
switch 3|.
by a line I45 to one of the leaves of the three
leaf switch 3I. The conductor I42 is connected
by a line I46 to the third leaf of the three-leaf
The thermionic tube 30 may suitably be a
'10L'7GT tube comprising in the same element a
diode plate I1I, a diode cathode I12 and a heater
I13 for said cathode, and also pentode elements
including aplate I14, a screen grid I15, a con
trol grid I18, a cathode I11 and a heater I18 for
The strip I21 carries along its innermost side a.
said cathode. The transformer 29 comprises a.
series of bridging contacts I32 which are nor
mally in series with the ‘contacts I26. The left 25 primary winding I19, one side of which is con
nected through conductor I43 and switch 91 to
hand assembly carries at its upper end a contact
power line MI. The other side of the winding is
I33 in alignment with the contacts I32. This
connected by the conductor I39 to the power line
contact cooperateswith the contact I26 of the
uppermost bar as shown in Fig. 12. A similar
The transformer comprises three windings I80,
contact I34 (Fig. ,15) at the lower end of the left 30
I8I and I62. The heaters I18 and I13 are con
hand strip I21 cooperates with the contact I26 of
nected in parallel to the winding I8I by con
the lowermost bar. A similar contact I35 is
ductors I82 and I83. One side of the winding
mounted at the upper end of the right-hand strip
I80 is connected to the plate "I, the other side
I21 and a similar contact I36 is mounted at the
being connected to the corresponding side of the
lower end of this strip to cooperate with the con
winding I8I and to-the condenser 41, which suit
tacts I26 of the uppermost and lowermost selector
ably may be a 12 microfarad condenser, and to
bars on the left-hand side.
a resistor I84 arranged in parallel thereto. This
The contact I33 is connected to the ?rst six of
resistor may suitably have a resistance of 20,000,
the contacts 46 beginning at the lower left-hand
portion of the disc 45 shown in Fig. 4 and is fur 40 ohms. The other sides of the condensers 41 and’
the resistor I84 are connected by a conductor
ther connected to a conductor I31 (Fig. 15) . vThe
I85’ to the diode cathode ‘I12, which is also con
bridging contact I32 immediately below the con
nected by a conductor I86’ to the conductive ring
tact I33 is connected to the seventh contact of the
50. The conductor I85’ is connected to the line
series 46 and the consecutive contacts I32 are in
order connected to contacts 46 in the manner 45 I82 through a by-pass condenser I81 which may
suitably be a .005 microfarad condenser. The.
shown in Fig. 15. The contact I35 is connected
conductor 4 82 is connected by a conductor I88 to
to the contact I34 and also to the sixteenth con
one end of the oscillator coil 48. This end of the
tact of the series 46. The contacts I32 below the
coil is connected through a condenser I89, which
contact I35 are connected in order to the seven
teenth to twenty-fourth contacts of the series. 50 may-suitably be a .05 microfarad condenser to
the conductor I29. The opposite ends of the coil
The contact I36 is connected to the last or twenty
48 are connected through a trimmer condenser
?fth contact of the series46.
I 90 to the conductor I88.
In the inoperative condition of the device the
The conductor I31 is connected to both the
contacts I26 connect the contact I33, the con
plate I14 and the screen grid I15 of the pentode
tacts I32 of the left-hand switch assembly, the
elements of the tube 30 so that these elements act
contact I34, the contact I35, the contacts I32 and
as a single plate. The cathode I11 is connected
the contact I36 in series. When one of the but
to a point on the oscillator coil 48, for example,
tons I2I is pressed inwardly,,for example, the
the center tap of this coil, and it is also con
seventh button of the left-hand switch assembly,
nected to resilient contacts 230 through a con
which corresponds to the selection of record No.
denser 23I. The resilient contacts 230 normally
'7, the seventh contact I26 is displaced inwardly
bear against the lower ends of the bars I06 and
to break this circuit. Consequently, only the ?rst
are arranged to follow the bars upwardly until
twelve contacts of the series 46 are connected to
these bars approach their uppermost positions.
the conductor I31. As will hereinafter be ex
plained, only the ?rst twelve contacts of the 05 In these positions the bars I06 are clear of the
contacts 230. When the bars I06 are down, the
series 46 are energized and the machine will
transmitter is detuned and when they are up, the
function to transmit twelve impulses, with the
transmitter is tuned to the receiver. Thus the
result that record No. 7 is selected and played.
transmitter is detuned and rendered ineffective
Similarly, if any other button I2I is pressed, the
corresponding number plus ?ve impulses are 70 for transmitting purposes except when the bars
I 06 are elevated into a high position. At that
transmitted and the corresponding record is se
time the motor 33 has been in operation for a
lected and played.
The conductor I3I is connected to. one termi
sut?cient period of time to elevate the bars I08
nal of the motor 33 and to one of the leaves
into locking position as shown in dotted lines
of the three-leaf switch iii. The other side of 76 in Fig. 11. Consequently the transmitter is main
I69 of these rails at their lower ends (Fig. 1).
tained in inoperative conditicn'untii after the se
The ears I82 at the upper end of the title hold
lector bars IIO are locked against manipulation.
The control grid I16 is connected through a con
denser I8l to another point on the coil 48: The
ing frame are adapted to be engaged by clips
I54 mounted on the forwardly displaced ends 84
condenser I9I may suitably have a capacity of
.0005 microfarad. A high resistance grid leak
I92 is arranged in parallel withthe condenser I9I.
I48 are adapted to be engaged by hook-formears
of the bar 80. The reduced ends I53 of the rails
I55 which are bent outwardly from the bar 88.
Springs I56 mounted on the bar 88 force the re—
A conductor I93 is connected to a'suitable point
duced ends I53_?rmly'against the hook-form ears
on the oscillator coil 48, for example, a point rel
atively close to the end of the coil which is con-' 10
The rear edges of the rails I48 are turned in
nected to conductor I88. The conductor I93 is
wardlyiFig. 3) to provide ?anges I51'which are ‘
connected through a resonant ?lter coil 49 and
adapted to hold a sheet 0f translucent material
a. trimmer condenser I94 to the conductor I38.
7 I58 in position behind the title holding bars I50.
When plate current is supplied to the plate ele
ments I14 and I15, the pentode elements feed 15 Behind the sheet I 58 of translucent material I
tion of the cards ‘on the title holding bars I50.
The lamps I59 are supported in sockets I60 car
ried by arms I6I which are mounted on the front
coil is tuned by the condenser I90 to a desired
frequency, for example, a frequency of 250 kilo
cycles. Theresonant ?lter coil and the condenser ~
, I94 constitute a tune ?lter which is tuned to the 20.
same frequency. that is, 250 kilocycles, for ex
ample, by adjustment of thetrimmer condenser I
rails- I00 of theswitchv assemblies. The lamps.
I59 are connected in parallel and are. supplied
with current from the secondary I62 of the trans
former 29.
The device is provided with a removable cover
96 which is adapted to be applied over the mech
Plate current is suppliedto ‘the plate elements
1 I14 and I15 each time that the; arm 5|‘ engages
anism and around the periphery of the base plate
one of the contacts 46 which is connected to the
I0. The cover is provided with a window I64
whereby the titles on the title holding frame may
be observed. The cover is provided with open
'conductor I31. Positive plate voltage is supplied
‘from the diode cathode I12 through conductor
I86’ to the ring 50. This positive ‘plate voltage
provide a plurality of lamps I59 for the illumina
energy to the oscillator coil 48. This oscillator
is supplied to the arm 5| by the ring-50 and arm 30 ingsl65 through which the buttons |2I project.
The cover is also provided with openings (not
52. When the arm 5I engages any one of the
shown)_ through which extend the forward por
?rst six contacts 46 an impulse of plate current
tions of the lock 92 and switch 91 so that they
is supplied to the plate elements I14 and I15.
Further impulses may be supplied to these plate . may be actuated from the exterior of the cover.
elements as the arm 5I ‘moves over the following 35 The cover is also provided with a, recess I66 which
is conformed to the ‘base of the coin receiving
contacts 46. The effect of the switch contacts
receptacle II so that the coin receiving receptacle
II is exposed and likewise the button I6 which
I26 in their normal position is to connect all of
the contacts 46 to the conductor I31. If one of
the buttons I2I is actuated. for example, the but~>
is mounted in the base, thereof.‘ I The cover is
ton corresponding to selection No. '7, then the 40 likewise provided with an opening-I61 in align
ment withthe open end of the rejected coin
‘corresponding switch I26 is opened and only the
pocket I4 (Fig. 3) so that rejected coins may be
retrieved by the operator. The cover is also pro-v ‘
vided with a recess’ I68 adapted to accommodate
elements receive twelve impulses of plate voltage
and the result is that twelve impulses of 250 45 a cable I69 which includes the two power lines
' ?rst twelve contacts 46 are connected to the plate.
elements I14 and I15. Consequently these plate
' , I38 and NI, this cable being suitably provided
kilocycles frequency are supplied to the power
with ‘avplug I10"v whereby the device .may- be
plugged into any suitable power outlet.
My remote. control unit may be employed to
receive a corresponding number, plus five im 50 control the operation of a phonograph which is
energized from the power lines I85 and I86 and
pulses of 250 kilocycle frequency. These im
to effect the playing of any desired record thereon
. pulses are communicated to the. lines I85 and
lines I38 and MI. Similarly, when any button is
pressed corresponding to a selection bearing any
number between 1 and 20, the lines I38 and MI
corresponding to any one or more of the selector
I86 which extend through the-building and they ‘
buttons‘ I2I; .For example, the remote control
pass in this way to the main unit which will here
55 selectorjmay be associated with the phonograph
inafter be described.
Between the two verticalv rows of buttons -‘I2I' _ described in ‘my copending application Serial No.
259,586, now U. S. Letters Patent 2,388,595 grant
I mount a title holder I41 which comprises two
side rails I48, a top rail I49 and a similarbottom ' ed November?, 1945. vMy improved remote con
' trol selector may also bev employed in connection
provide a rectangular frame. , The two siderails 60 with’ the phonograph described and claimed in
rail. (not shown),-these rails being connected to
application Serial No. 342,419. filed of even date
I48 are connected by 1a series of title holding bars
I50 which extend in the horizontal direction and _
are located in obliqumposition as best shown in
Fig. '1. These bars. have stamped out of them
'clip formations I5I'"which are adapted to hold
title cards in position-for view from'the front of
the device.
As best see-n in Fig. .5, the title holding bars
I50 are located in alignment withthe buttons I2l
so that a card bearing a title of the recording
controlled by each button I2I may be located
valongside'that button. -The title‘holdingframe
herewith by Marion‘ R. Winkler.
The solenoids I95 are atranged in a circular
series, each including an armature 240 which is
normally in its low position shown on the left of
Fig.'1'7. The armatures 240'h-ave lower exten
sions 24I vwhich carry cylindrical insulating
pieces 242 and conductive pieces 243. The insu
lating pieces.242 are normaly engaged by an
70 insulated spring 244. When one of the solenoids
I95 is energized its armature 240 is moved up
wardly bringing its conductive piece 243 into
may be held in'position by means of ears I52‘
engagement with the. insulated spring '244 thus
which-project laterally from'the rails I48 at their
upper end and by means of'reduced extensions
which supports thesolenoids I95. as shown on ,
grounding the spring 244 through the frame 245
the right-hand side of Fig. 17. The insulated
spring 244 is connected to one side of a switch
246,. the other side of which is grounded. The
common sides of the spring 244 and the switch
246 are connected to a relay 241.
delivered by the oscillator in the remote control
unit and to amplify and rectify these impulses.
The final result or these impulses is the energize
tion of a gas tube I99 at the output end of the
The switch
ampli?er. This gas tube may suitably be a 2A4G
248 of the relay 241 is in series with the phono
graph motor 249, motor 249 and the switch 248
being connected to the power lines I85 and I86.
The other side of the relay 241 is connected to
tube and its plate is supplied with alternating
current. Owing to the alternation of the plate
voltage, the gas tube I99 is rendered inoperative
at the termination of each impulse. Conse
the secondary of a transformer 250, the other side 10 quently, the gas tube is rendered operative for a
of the secondary being grounded. The primary
short time when each impulse is being received.
of the transformer 250 is connected across the
The result is that a relay 202 is energized for a
power lines I85, I86. When the phonograph is
corresponding number oftimes and the switch 203
at rest, the switch 246 is open. When one or
more of the solenoids I95 is energized its arma
is closed for that number of times.
On the ?rst closure of the switch 203 the relay
204 is energized, the winding of the relay 204
being in the plate circuit of the recti?er I91.
The relay 204 is'a time-delay relay and conse
quently it remain-s energized during a series of
impulses transmitted from the oscillator in the
remote control unit. When the relay 204 is en
ergized, the switch 205 is closed, the switch 206
is opened and these switches remain closed and
opened, respectively, during a series of impulses
corresponding to the recording selected. When
ture 240 is moved upwardly and the relay 241 is
energized by the completion of the circuit 243,
244, relay 241 and secondary of the transformer
250. Consequently, the switch 248 is closed and
the motor 249 is put into operation to effect the
record changing cycle of the phonograph and to
play the corresponding record. At the begin
ning of the record changing cycle, the switch 246
is closed so that the motor 249 remains in opera
tion until the selected record or records have
been completed. The phonograph comprises a
the switch 205 is closed, the relay 201 is energized,
shaft 25I which is given a complete revolution
and the switch 208 is closed.
during each record changing period. The shaft
The cathode of the tube I91 is connected to the
25I carries with it a disc 252 which is provided
winding of the relay 204 and to one side of the
with an abutment 253 which is adapted to engage 30 switch 205. The other side of the relay 204 is con
non-ferrous pins 254 which have been projected
nected to one side of the switch 203. The other
upwardly by actuated armatures 240. Thelnon
side of the switch 205 is connected to the wind
ferrous pins 254 are slidably supported so that
ing of the relay 201. The switch 206 is connected
they move upwardly with their armatures 240, as
to one side of the switch 208. The other side of
shown at the right of Fig. 17. The shaft 25! is 35 switches 203 and 208 and the winding 201 are
driven through a frictional connection so that it
connected to the power line I86. The two switches
is arrested when the abutment 253 strikes an up
206 and 208 are connected together and the other
wardly displaced pin 254. The shaft 25I is con-v
side of the switch 206 is connected to the common
nected to the phonograph selector so that the
line 2I0 of the solenoids I95.
record played depends upon the point at which 40 The relay 202 effects the stepwise movement
it is arrested by one of the pins 254.. The disc
of an arm 2II of a stepping relay M2. on the
252 carries'a slidable member 255 which is pro
?rst impulse the arm 2“ is moved into contact
jected downwardly momentarily during the latter
with the ?rst of a series of contacts 2I3 which
part of the record changing cycle. The member
correspond to the contacts 46 of the remote con
, 255 is so located that it is in alignment with the 45 trol unit. The second impulse of the series brings
pins 254 which has arrested the abutment 253.
the arm 2“ into contact with the second contact
It will readily be understood that if my selector
2 I3 and so forth. Thus, when selector button I2I
is operated so as to energize a plurality of sole
corresponding to recording No. '1 is actuated,
noids I95, the motor 249 is maintained in opera
twelve impulses are transmitted over the power
tion during the playing of the corresponding 50 lines and the relay 202 is actuated twelve times.
records, the corresponding pins 254 being engaged
one after the other by the abutment 253 so as to
control the playing of the corresponding records
one after the other. Before the last record has
Consequently, the armH2II moves into engage
ment with the contact 2I3 which is connected to
the solenoid I95 corresponding to recording No. '1.
The relay 204 controls means which prevents
been completed the member 255 pushes down the 55 the return of the arm 2“ to initial position dur
last pin 254. Before this occurs the switch 246
. ing the period that a series of impulses is being
is closed and consequently the relay 241 is ener
' received. At the end of the series of impulses the
gized until the last record is reproduced. There
relay 204 becomes deenergized and the relay 201
upon, the record changing cycle starts opening
becomes deenergized so that the arm 2“ is re
the switch 246 so that the motor 249 is deener 60 leased and returns automatically to its initial po
gized. The motor remains out of operation until
sition. The arm 2“ is adapted to engage any one
one or more of the solenoids I95 is again en
of the contacts 214 and it is also in contact with
a strip 2I4 of conductive material. This strip is
The electrical system whereby the impulses
connected to the power line I 85.
transmitted over the lines I85 and I86 are picked 65
When a series of impulses is transmitted from
up and caused to energize the corresponding
the remote control unit, the receiver I98 picks
solenoids I95, will now be described, it being un
up these impulses, being tuned to the same fre
derstood that the devices illustrated in Fig. 16
quency. Consequently, the relay 202 is energized
are located on the phonograph and not on the
a corresponding number of times and the arm
remote unit which has been previously described. 70 2 I I is moved to the contact 2I3 corresponding to
This electrical system on the phonograph com
the recording selected. When the switch 203 is
prises apower supply unit I96, a recti?er I91 for
closed by the first impulse, therelay 204 is closed,
the supply of direct current to certain relays,
closing the switch 205 and opening the switch 206.
and an ampli?er I98. The ampli?er I98 is
The closing of the switch 205 energizes the relay
adapted to rezeive the high frequency impulses 75 201 and the switch 208 is closed.
While the series of impulses is being received,
switches 205 and 208 are closed while switch 206
is open. Owing to the open condition of the
switch 206, no circuit can be completed through
the solenoids I95 during the reception of a series
of impulses. When the series of impulses is ter
minated, the switch 203 opens. As a result after
a slight delay, switch 205 opens and switch 206
the corresponding switch contact I125 remains in
closed position and the corresponding contact
I26 remains in open position until the bars I06 . are again depressed.
After the shaft 34 has rotated through a rela
tively small angle, for example,» 90 degrees, the
projection 18 engages the detent 19 of the bell
crank lever 15 and swings this lever in counter
clockwise direction as viewed in Fig. 6. Con
closes. Before the switch 208 opens, a circuit is
sequently, the armature of the relay 32 is un
completed for a brief interval from power line 10 latched and is moved by its spring downwardly .
I86, switch 208, switch 206, conductor 2I0, the
open the switch 12. 'At this time the switch
solenoid I95 corresponding to the position of the ' to
3| is closed so that the motor continues to op
arm 2| I, the corresponding contact 2I3, arm 2i I,
crate through the circuit which includes con
conductive strip 2 I 4 and power line I85. This cir
ductor I45. It is to be noted that the opening
cuit is broken by the deenergization of the relay
of the main switch 91‘ will not interrupt the
201 which permits the switch 208 to open.
operation of the motor. If this were possible,
When the relay 204 is energized, the arm 2“
is released so that it can return to its initial posi
a plurality of records could be played for a single
coin by one possessing the key controlling the
tion. Before the arm 2“ moves away from'the
switch 91. As has been heretofore pointed out,
contact 2I3 with which it is in engagement, the 20 ' the opening of the contact I26 corresponding
circuit through the arm 2I I, the solenoid I95 cor
to a particular recording, for example, record
responding to its position, and the switches 206
ing No. '1, has the effect of connecting conductor
and 208, is completed for a short instant and the
I31 to the ?rst twelve contacts of the series 46.
switch 208 opens before the ‘arm 2“ is moved
The arms 5I and 52 moving .over the contacts
away from its position corresponding to the se
46 consequently connect the cathode I12 to the
lected recording.
plate elements I14, I15 of the tube 30 twelve times. :
As described in the aforesaid application Se
Twelve high frequency impulses having a fre
rial No. 342,419 ?led of even date herewith by
quency of 250 kilocycles are supplied to the lines
Marion R. Winkler, the energization of the sole
I85 and I86. After the arm 5I has moved over
noid I95 corresponding to the selected button I2I 30 all the contacts and when the‘shaft 34 has
results in the playing of the corresponding record.
almost made one revolution, the cam BI engages
It is further to be noted thatv any desired number
the projection 62 and moves the bar 63 upwardly.
of solenoids I95 may be actuated by the remote
This upward movement results in the downward
control unit with the result that all the corre
movement of the locking bars I06 and the open
sponding recordings may be reproduc'ed by the 35 ing'of
the switch 3|. The motor circuit is now
phonograph and when the armatures of all the'
broken and the motor remains inoperative until
solenoids‘ I95 have been returned‘ to initial posi
another coin is inserted.
tion, the operation of the phonograph is ter
It may here be noted that if two of the buttons
I2Iare pushed atone time, only one series of
In normal operating‘ condition the cover 96 40 impulses, will be transmitted, being that" series
~ encloses-the mechanism of the remote control
corresponding to the button of lowest number.
unit, the bars 83 and 83’ being in, locked relation
This results from the fact that the button of
to the bars 95 ‘and 95’. The main switch 91 is
lowest number, for example, button No. '1, moves
turned on by a suitable key and the remote con
the corresponding'contact I26 to open position
trol unit is ready for actuation, it being under 45 so that all of the contacts 46 above the twelfth
stood that current is being supplied to the phono
of the series are disconnected from the con?
graph. The abutments 61 are holding the locking
ductor I31. After the switch 12 is opened. an
bars I06 depressed so that they occupy their full
other coin may be inserted to close this switch
line position shown in Fig. 11.. Consequently, if
and after the motor 33 stops/operating, any of
one of the buttons I2I is pushed inwardly, it will
the other buttons I2I may be actuated to select
not remain in its innermost position. 4 Such ac
another recording. When this is done a corre
tuation of one of the buttons I2I will have no
sponding number ‘of impulses of high'frequency'
effect, because switches 12 and 3I are open.
current are supplied to the lines I85 and I86.
A coin is now inserted in the coin receiving
Each series of impulses is transmitted through
member II and the switch 21 is closedmomen 55 ‘the wires I85 and I86 to the ampli?er I98 and
tarily. The closing of the switch 21 energizes
the relay 202 is energized a corresponding num
the relay 32 and its armature is latched in its up
ber of times. Thus, if the button I2I corre
permost position, closing the switch 12. When
one of the selector buttons I2I, for example, but
ton No. '1, is now actuated, the corresponding con
tact is moved to circuit-opening position and the
corresponding contact I25 is moved to circuit
closing position. The result is that the motor 33
goes into operation.
sponding to selection No. 7 is actuated, twelve
impulses go over the lines and the relay 202 is
60 actuated twelve times in succession. Such ac
tion, as has been previously described, results in
the movement of the arm 2“ into the twelfth
contact of the series 2I3. When the series of
impulses ceases, a, current flows through the
Immediately the motor 33 starts driving the 65 solenoid I95 connected to the twelfth contact of
shaft 34, the cam 6| clears the projection 62
the series 213 and the displacement of the arma
so that the bar 63 is able to move downwardly
ture of this solenoid results in the playing of
and the locking bars I06 are moved upwardly,
recording No. '7. Actuation of any of the other
both movements- being e?ect'ed by the springs
buttons I2I likewise results in the displacement
68. The downward movement of the bar 63 and 70 of the armatures of the corresponding solenoids
the adjacent portions of the lever 65 results in the
I95, and, as previously indicated above, the pho
closing of the three-leaf spring 3|. The upward
nograph continues to play the corresponding
movement of the locking bars I06 enables one
recordings until all the actuated armatures have
been returned to normal position and the cor
of the detents I20 to project into the opening I22
of the actuated selector bar IIO. Consequently, 75 responding recordings played. _
My improved remote control devices described
transmission instead of over the power lines I85
and 188.
Although the invention has been disclosed in
connection with the specific details of preferred
embodiments thereof, it must be understood that
such details are not intended to be limitative of
above may readily be adapted for selection by
space transmission. For this purpose the remote
control unit may be provided with an exposed
loop antenna 220 (Fig. 15A,), instead of the
oscillator coil 48. The ends of the loop antenna
are connected together and to the conductor I88.
the invention except in so far as set forth in the
accompanying claims.
The antenna 'circuit includes a trimmer con~
Having thus described my invention, what I
suitable frequency, for example, 250 kilocycles. 10 claim as new and desire to ‘secure by Letters Pat
denser 22I and is tuned by this condenser to a
The cathode I‘I‘I of the tube 30 is connected to
a suitable point, for example, the mid point of
the antenna. The grid I16 is connected through
the condenser I9I and the grid leak I92 to an
other point on the antenna, as shown in Fig. 15A.
The antenna 220 and condenser 22I replace the
oscillator coil 48 and condenser I90 of the pre
viously described embodiment. The antenna is
put into oscillation when the pentode elements
of the tube 30 are rendered active in the manner
previously described and each impulse is broad
cast by the antenna 220.
As shown in Fig. 16A, the ampli?er I98 may be
modi?ed to receive'the impulses transmitted by
the antenna 220. For this purpose the primary
' input coil is omitted and the secondary coil is
replaced by an antenna 222 which is tuned by a
condenser 223 to the same frequency. This an
tenna is connected to the control grid of the ?rst
tube of the ampli?er I98. It 'will be readily un
ent of the United States is:
1. A control mechanism for selective phono
graphs comprising individual means adapted to
be actuated to effect the playing of a correspond
ing recording, a control circuit comprising one
of a series of contacts, switches connecting said
contacts in series and a conductive member
adapted to move over said contacts, a plurality
of selector members adapted to open any of said
switches whereby to cut any desired number of
contacts out of said- circuit, motor means for
causing said member to move over all of said
contacts, a switch associated with each of said
selector members for controlling the operation of
said motor means, a coin-controlled switch in
series with last said switch, a switch in parallel
with the coin-controlled switch, means actuat
ed by the motor to open the coin-controlled switch
and to open and close the parallel switch, and
30 means responsive to the closing of said circuit for
derstood that when the device is operated in the
a de?nite number of times to actuate a corre
> manner previously described, the loop antenna
sponding individual means.
220 transmits a series of impulses corresponding‘
2. A selector mechanism for selective phono
to the record selected and that these impulses
graphs comprising individual means adapted to
are received by the antenna 222 with the result
be actuated to e?ect the playing of a correspond
that the relay 202 is energized a corresponding
' ing recording, a- transmitter tuned to de?nite
number of times, with the result that the phono
radiofrequency, ‘means for detuning said trans
graph is put into operation to play the record se
mitter, automatic selective mechanism for con
trolling said transmitter to cause it to transmit
It will also be understood that in the case of 40 a de?nite number of impulses corresponding to
this embodiment, any number of recordings may
a desired recording, manual means for initiating ‘
be selected and the corresponding armatures of
the operation of said mechanism, means operat
the solenoids I95 will be displaced. The phono
graph will operate to play all the'corresponding
ed by said mechanism for rendering said detun
ing means ineffective, means adapted to receive
impulses of said radio frequency, and means
records and return the corresponding armatures
of the solenoids I95 to initial position. This em
controlled thereby adapted to actuate said in
bodiment of the invention operates in precisely
dividual means in accordance with the number
the same manner as did the embodiment of the
of impulses received.
invention ?rst described, with the exception that
the series of signals is transmitted from the re
mote control unit to the phonograph by space
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