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Патент USA US2137276

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Nov. 2z, »1938.
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R, R. 'ERBE-l
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Nov. 22, 1938.
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Filed March 1‘1, 1935
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Nov. 22, 193s.
'Filed March 11,` 1935 ~
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N0v.22, 1938.
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, Filed March 11, 1935
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Nov. 22', 1938.; _ `
‘ 42,137,276
v,Filed March 11,r 1935
6 sheets-Sheet 5
1938 i
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R. Erbe, Fort Wayne, Ind., assignor, by
mesne assignments, to Reconstruction Finance »
Corporation, Chicago, Ill., a corporation
Application March 11, 1935, Serial No. 10,441
8 Claims. (CL 274-10)
This invention relates to an automatic record
changing phonograph of the type having a magazine for storing a number of records together
with mechanism for automatically withdrawing
5 a record from the >magazine for reproduction and
line I4--l4 of Fig. 6. Fig. 15 is a sectional view
taken on the line I5-I5 oi-Fig. 1.
The movable mechanism of the machine is
mounted upon a stationary deck plate 20 which
may be suitably supported in any manner with- 5
then returning the recordto the magazine when
in a cabinet which is not shownin the draw
' ‘
The principal object of the invention is gen-
erally to improve upon and simplify the opera3 tion of this type oi' phonograph and to this end
the invention consists in the various features
hereinafter described and deiined in the appended claims.
In the drawings, which illustrate the invenr, tion in a preferred form, there is shown a phonograph of the selective type wherein any desired
Beneath the said
deck plate there
is '
mounted the usual electric motor 2| which ro
tates a vertical stem 22 extending upwardly
through the deck plate 20. The usual rotatable 10
turntable 23 is carried upon said stem and is
rotated thereby, the upper end of said stem form
ing a centering pin for centering records upon
A record storage magazine 24 is mounted upon l5
the upper end of a member 25 which is slidably
record may be pre-selected for withdrawal from supported beneath the deck plate 20 and extends
the magazine for playing. It is also possible to upwardly through an opening 26` therein. The
pre-select a number of records to be played in . magazine is provided with side plates 21, parti
:0 sequence. The magazine is placed in an easily tion plates 28 and- a bottom plate 29. The bot- 20
accessible position above the deck plate of the
the turntable.
tom plate 29, referring _particularly to Fig. 4,
machine and the records are stored on edge so
extends about the lower surface of the left-hand
they may be easily removed and replaced by
hand when it is desired to change the program.
portion of the side plates 24, but, at the right
of the magazine, it leaves the side plates and
The full nature of the invention will be un-
extends outwardly and upwardly at aslight an- 25
derstood from the accompanying drawings and
the following description and claims:
Fig. 1 is a plan view showing the relative positions of the playing turntable, storage maga30 zine and pickup arm. Fig. 2 is anelevational
view of the front of the machine referring to
gie. It will be apparent that the magazine is
adapted to hold a record 30 on edge in each of
the compartments formed by _the partitions 28
and that the records will normally rest in the
magazine because of the upward inclination of 3Q
the bottom plate 29. However, a record may
' Fig. 1. Fig. 3 is an elevational view oi’ the right
s f side of the machine referring to Fig. 1. Fig. 4
is an elevational view of the rear of the machine
35 with a record'in process of transfer to or from
the turntable.- Fig. 5 is an elevational view of
Fig. 6 is a plan
be removed' from the magazine by rolling the
same to the right along the bottom Plate. 81S i1
lustrated by the broken line- 3| in Fig. 4.
f The machine is provided with the usual pick- 35
up arm 32 carrying a stylus 33 which engages
a record upon the turntable for reproducing the
same. The stylus is associated with the usual `
view partly 1n section and with parts removed
40 to show other parts in detail. Fig. '1 is a sec-
pickup mechanism carried by the pickup arm 32
and not shown in the drawings. The said pick- 40
the left side of the machine with the parts in
the same position as Fig. 4.
tional view of a part of the apparatusI taken sub- _ up mechanism may be connected to any suit
stantially on the line 1_1 of Fig. 3_ Fig 8
able form of amplifier and reproducer. The pick,
is a fragmentary sectional View taken on the
une 3_3 of Fig 2_ Fig 9 is a »fragmentary Sew.
upvarm is pivotally mounted at 34 upon lugs 35
carried upon the upper end of a rotatablebush
tional view taken on the line 9-9 of Fig. 3.
` Fig. 10 is a fragmentary sectional view taken on
the une n_n or F15 6_
Fig 11 is a perspec_
tive view of a master cam used for controlling
50 certain automatic movements of the n-¿ta'chme'
Fig» 12 1s an elevational View with Parts cut
away showing a portion of the drive mechanism for the selection of records from the magazine. Fig. 13 is'a diagram of electrical connec55 tions. Fig. 14 is a sectional view taken on the
ing 36.
The arm may thus be-raised by move- 45
bo t its
iv t u to remove the stylus
p o
m t d b
from the record and may be oso a e
y move-A
rmit the st lus to
lfrâîäîvofhìhîeggîà?ëîoggewanlâe to permit ghe re_
turn of the same to the starting position.
' 50
In the automatic operation of the phonograph,
when a record has been completely reproduced,
the> pickup arm is raised and movedn counter
clockwise to clear the record, the record is re
moved from Athe turntable and placed in its 55'
proper compartment in the magazine, a new rec
ord is removed from the magazine and placed
on the turntable, the pickup arm is moved to
a position above the starting point of the new
record and the stylus is lowered into playing
position thereon. The mechanism by -which
these automatic movements are produced will now
is engaged by the upturned end 58 of a lever
39 (Figs. 5 and 7). Said lever ilnds a pivot 33 in
an angle bracket 3| mounted upon the bracket
33. The opposite end of the lever has freely
mounted therein a vertical stud 62 having a head
63 formed-thereon. A spring 64 normally urges
said stud' upwardly against the lower end of a
Y be described in detail.
vertical pin 65- which extends upwardly through _
the bushing 36 and engages the pickup arm. A
Power drive for automatic mechanisms
lock nut 66 upon the stud 62 limits the upward
The stem 22 which is continuously driven by ` movement thereof. The pin 65 carries a collar 10
the motor 2| carries a pinion 31 which is adapted A31 to which there are attached, by means of -pins
to mesh with a gear 38 rotatably mounted upon 68. a pair of tension springs 69. Said springs are
_ one end of a clutch lever 39 (Fig. 6). 'I'he
attached at their upper ends to au arm 13 se
clutch lever 39 is freely mounted upon a vertical cured to the bushing 36 and thus serve to coun
shaft 43 and extends to a position between a pair terbalance a portion of the weight of the pickup 15
of solenoids 4| and 42. Said solenoids are suit
arm and the associated mechanism.
ably supported beneath the deck plate 23 and are
In the normal or playing position of the mech
shown in Figs. 6 and 3 but omitted from Fig. 2 anism the end of the lever 59_engages a notch 1|
i’o‘r the purpose of showing other parts. Said in the cam track 51. » The opposite end is, there~
solenoids have a common armature 43 carrying fore, at- its lowermost position- and permits the 20
a pin 44 engaging a slotted opening 45 in the end stylus to engage the record. As soon as the ro
of the clutch lever 33. It will be apparent that
of the master cam 56 is commenced, the
when the solenoid 4| is energized it will move the tation
end of the lever 59 is pressed downwardly by a
armature 4_3 and clutch lever 39 to bring the gear sloping portion 12 of the cam track 51 and the
33 into mesh with the pinion 31. The lever 39 is pin 65 and pickup arm are elevated to raise the
locked .in this position by a locking lever 43 piv
stylus from the record. 'I'he cam track 51 is
otally mounted at 41 on the undersurface of the shaped to maintain the stylus in its elevated posi
deck plate 23. Said locking lever is provided with ’
tion until the master cam has made a nearly
a notch 43 engaging a pin 49 carried by the clutch `
revolution, whereupon the end of the 30
lever 33 and is urged into locking position by a lever 39 engages
a second inclined portion 13 on
tension spring 33. In the locked position shown _said cam track which permits the stylus to be
in Fig. 6, the locking lever prevents accidental
movement of the clutch lever to disengage the
gear 38 from the pinion 31, even though solenoid
4| is deenergized. An overcenter spring 49a »hasL
one end anchored to the deck plate 23 and the
opposite end engaging a suitable recess in the end
of the lever 39 and aids in retainingvthe lever 39
40 at either of its extreme positions.
When the solenoid 4| has been deenergized and
solenoid 42 energized, the armature 43 is drawn
to the right, pressing the pin 44 against the tip
' of the locking lever 46 and thus moving the lock
45 ing lever from locking position. When the notch
43 in said lever has cleared the pin 43, the pin 44
reaches the end of the slotted opening 43 and the
further movement of the armature 43 moves the
clutch lever 33 to disengage the gear 33 from
the pinion 31. All of the automatic movements
lowered into engagement with the new record. `
At the end of a complete revolution of the master
cam'56 the lever again enters the notch 1|. and
the opposite end thereof is lowered sufficiently to
completely withdraw the pressure of the spring
64 from the lower end of the stem 65. It will be
apparent that the spring 64 provides' a cushion
ing effect in the motion of the pickup arm which 40
prevents damage to the mechanism and excessive
Mechanism for horizontal maniement of the
pickup arm
The outer edge of the master cam 56 is formed 45
as a cam track which is engaged by` an upturned
end 14 of a lever 15, as best seen in Fig. '7. The'
lever 15 is pivotally mounted upon a bearing 13
formed integrally with the bracket 53. The op
of the machine are driven through the gear 33 posite end oi the lever engages a vertical pin 11 50
and thus the actuation of solenoid 4| initiates the »which is rigidly secured to the arm 13 which is
automatic movements and the actuation> of sole- " in turn clamped _to the lower end of the bushing
33. In the normal or playing position of the
55 ‘ - A pinion 3| is also carried by the clutch lever 'mechanism the end of the lever 1_5 rests in a
noid 42 stops the same.
33 and is formed integrally with the gear 33. The notch 13 in the edge of the master cam 53.
pinion 5I meshes with a gear 52 which is _secured When the -rotation of the master cam'has been
i to the shaft 43 and is, therefore. always in mesh started by engagement of the clutch` gear 33
with pinion 3| irrespective ofthe position oi' the ` with the pinion 31 and has progressed suiîlciently
clutch lever 33. The shaft 43 is carried by a to remove the stylus from the record, the end of
bearing bracket 33 secured to the undersuriace, the lever 15 engages an inclined portion 19 of the
of the deck plate 23 and ñnds a lower bearing in _ master cam and is rocked thereby in a clockwise
a >member 34 which is secured to thelower end direction. referring to Fig. 7. In this movement
of a U-shaped' bracket 33, also supported on the the lever engages the pin 11 and rocks the same
lower surface of the deck plate. 'I'he shaft 43 . in the'counterclockwise direction carrying with
is rotated as >long as the pinion 31 and gear 33 it the bushing 33 and the pickup arm 32. The
are in mesh. `The automatic movements are so shape of the master cam is such that the pickup
timed that one complete revolution _of shaft 43 arm is movedl entirely clear of the record, as
completes a cycle of operation and returns the
shown in Fig. 5. _
parts to initial position.
During the latter portion of this movement, the
pin 11 engages a leaf spring 83 mounted upon 70
- Y
Tone arm elevating and lowering mechanism
the bracket 55. As the master cam 36 approaches
The shaft 43 has secured thereto a master cam the end of a complete revolution, the lever 15 is
I3 shown in detail in Fig. 11. Said cam is pro ' brought into engagement with a portion 8| there
75 vided on its lower face with a cam track 31 which of which is somewhat reduced in diameter and
permits the leaf spring 88 to move the pin 11 sufli-f
ciently to bring the stylus over the starting point
of a new record which has meanwhile been placed.
upon theturntable. While the pickup arm is'.v
GI held in this position, the stylusis lowered onto“,l
the record as previously described. When a1
single ,revolution of the master cam is complete, i
the notch 18 therein is again opposite the end of ‘
the bottom plate 29 thereof, asillustrated in
Fig. 4.
Record 'transfer mechanism
Mounted upon thetop of the deck plate 28a-re
a pair of bearings |83 vsupporting a rock shaft
|84. The rock shaft |84 carries a transfer cradle
|85 secured thereto.
Said cradle consists of i a
the lever 15 which is slowly moved into the-notch ‘ ring or annulus |86 having an' outside diameter
,10 by the movement of the stylus in follobving the approximately that of the records 38 and having
>its inside diameter, represented by the broken line 10
record groove inwardlyupon the record.
|81 in Figs. 1 and 4, sufliciently large so that the
Mechanism for (moving, the record from _the turntable 23 may pass within the ring as the
latter is rocked downwardly by movement of the
shaft |84. The cradle is provided with a rim |88
about a portion thereof, best seen in Fig. 4, and 15
with a trackway |89 upon which the-records may
ed at 85 on the bracket 55. `The opposite end of roll in entering and leaving the cradle.
The position of the cradle for receiving a record
the lever has secured thereto a lstud 86 by means
of a lock nut 81, said stud having a head 88 en- “ from the magazine and for returning the same
gaging the lower end of a vertical rod 89. The thereto is shown in Fig. 4. In vthis position the 20
rod 89 extends upwardly through a tube 98 ' trackway |89 forms a continuation of the bottom
-mounted upon the -deck plate 28. The tube 98 plate 29 of the magazine and the record is rolled
The master cam 58 is provided on its under
surface with a cam track 82 which is engaged by
the upturned end 83 of a lever 84 pivotally mount
has secured to its upper end a second tube 9| ex
bythe ñnger 91 along said trackway until itcomes
25 tending horizontally over the magazine. The to rest against the rim |88. The record in this
tube 9| carries a stem 92 rotatable therein. The' movement is guided -into position` against the ring 25
stem 92 carries at .one end a cam plate 93, _best |88 by means of a resilient finger ||8 secured to
seen in Fig. 2. The plate 93 has an irregularly _ a resilient arm | | |, which is secured at one end
| I2 to the frame ofthe cradle.
shaped slotted opening .or guideway 94 which, en
While the record is'held in _place by the linger
30 gages a pin 95 extending thipugh a slotted open
ing 96 in the tube 98 and sec‘ured to the upper 91. the vshaft |84 is oscillated by means hereinafter
end of the rod 89. A linger. 91«is secured to the
described toV lower the cradle into the position
> opposite ‘end of the stem 92 and is adapted to move shown in Fig. l. In’this movement the record is
over the magazinev to push a récord therefrom as prevented from rolling- from the,me'ans the stem 92'is oscillated within the tube 9|. The n of a curved rod ||'3 secured to the deck plate 28 or
rod 88 is normally maintained in contact with the other suitable means. The downward movement
head 88 by means of a compression spring 98A ofthe cradle places the record upon the turn
abutting against a pin 99 carried at the lower end table with its centering hole engaging the ‘center
of said rod and against the undersurface of the ing pin 22 of the table. In this movement the
‘ deck plate 28.
~ ~
In the normal or playing position of the'mech
amsm, the end of the lever 84 rides upon the
lowermost portion |88 of the cam track 82. The
rod 89 is, therefore, pushed upwardly against the
action of the spring 98 into the position shown in
Fig. 2. In this position the pin 95 in the guidewayI
94 operates to maintain the cam plate 93 in the
proper position to hold the arm 91 between the l
ring `|88passes below `the level of the table leav
ing the record resting ythereon in the- normal 40
manner. - At the same time, the centering pin 22
engages the base of the finger ||8, as best seen
in Figs. 1 and 3. The finger is upwardly pressed
to disengage it from -the record and thus prevent ¿5,
frictional engagement with the _record during
When the playing of the record has been com
records of the magazine as shown rin said figure
pleted, the shaft |84 is again oscillated to rai'se ¿
the cradle, thus removing the- record from the
turntable. .Upon reaching the upright position,
viously been removed for playing. During the the cradle is stopped by a lug |88a engaging an
50 and in Fig. 1.- Itwill be seen that the ñnger 91
occupies the space fromwhich a record has pre
rotation of the master cam 58 the lever 84 is en--
gaged by an upwardly inclined portion |8| of thecam track which permits the rod 89 to. be forced
downwardly'by the spring- 98. 'The downward
movement of the pin 95 acting in the guideway
84 oscillates the plate 93 and the finger 91 counter
clockwise (Fig. 2). _At this >time the record which
adjustable stoppin |8|a secured to the deck plate».
28. In this position the record rests againstthe
linger 91 and the retraction of said finger, as 55
previously described, permits the record to roll
back into its place `in the magazine. `
by a cam ||4 carried upon the shaft 48. Said>
60 'has been played is being rolled back into the
cam engagés a roller ||5 carried upon a link ||6
. ‘magazina `as will be hereinafterdescribed and
which has a slotted opening ||1 engagingthe
` said record is gently guided 4into its proper place ‘ shaft 48. The opposite end of the link | I6 is piv
by engagement with the finger 91. The cam
track 82 is so shaped that the linger 91 is moved
clear of the magazine'when the record has finally
been placed therein. ‘_ The magazine is then
moved by mechanism tò be :hereinafter described
to bring another record opposite said finger and
70 thereafter the lever 84 is engaged by theA down
- wardly inclined portion |82 of the cam track> 82. ` ‘
.The consequent -movement of the Llever 84 again
`»pushes the rod. 88 upwardly, -causing the plate 93
' and finger 81 to be rocked in the proper direction '
75 to roll the new _record from themagazine Jalong.
The oscillation of the shaft |84 is controlled
otally connected to a quadrant arm ||8 which is
in .turn pivotally mounted by a pin ||9 upon al
bracket |28 secured t?) the underside of the deck‘ e5.
plate 20. The quadrant arm v| I8 carries a gear
quadrant |2| at its upper end, the teeth of which
mesh with~a gear |22 carried upon the shaft |84. >
AThe cam ||4 is so‘shapedthat it forces the roller
H5., and link | I6 to the right in Fig„`5 at the 70
proper time to raise the cradle |85., vThe cam
carries a guide elementu|23 which has a down-`
wardly extending lip V_|24V positioned to engage
the outer edge of `the roller and force the same 75
to the left in Fig. 5 at the proper time to'lower
the cradle |05 toward the turntable.
selective mechanism
For selecting the record or records to `be played,the magazine is horizontally moved to bring the
I desired record opposite the finger 21.
For this
purpose the member 25 which carries the maga
zine is slidably mounted upon guide bars |25
10 kcarried upon hangers |25 secured to the under
surface of the deck plate 20. 'I'he member 22 is
provided with a tongue |21 to which there is> piv
otally connected a link |22l the opposite end of
which is pivotally secured to an arm |29 freely
15 mounted upon a' pin |20, said pin being in turn
secured to a boss |2|- on the undersurface of the'
‘ deck plate 20 (see Fig. 12) . A pinion |22 is like
wise freely mounted upon the pin |20 and a fric
tion washer`|22 _of cork or other suitable mate
rial is interposed betweenthe pinion |22 and the
arm |29. AA spring washer |24 surrounds the pin
|20 above the pinion |22. Said washer abuts
against the boss |2| and presses the pinion
' , downwardly against the cork washer |22.
is thus produced a frictional engagement .by
means of which the arm |22 is rotated by rota
tion of the pinion |22 unless the movement of
said arm is positively stopped by external means,
whereupon the movement of the pinion |22 con
tinues independently of the'arm |29. 'I'he pinion
|22 meshes with a gear segment |25 carried upon
the underside ofthe gear 52 and said segment
has the proper number of teeth to rotate the pin
ion through one revolution for each revolution
of the gear 52.
_The pinion |22 has' mounted thereonv a pin
|22 which is adapted to engage a notch in the
end of an L-shaped member | 21 (Figs. 6 and 12) .
The member |21 is freely mounted on the shaft ~
40 40 and has its opposite end |22 engaging the
bracket 52 to prevent rotation about the shaft
40. A spring |29 surrounds the shaft 42 beneath
the 'member |21 and normally maintains the
same in an upraised position against the hub of
45 the ,gear 52. In this position, it engages the pin
|22 and prevents rotation of the pinion |22. The
member |21 is formed with an inclined finger |42
projecting into the path of travel of the segment
|25. When engaged by said segment the member
in Fig. 9, the left-hand tip |50 projecting farther
forward than the right-hand tip |5I. The mag
net is so positioned that each of the armatures
|44, when moved by the energizing of its corre
sponding magnet, projects in'to the path of travel
of the left-hand tip |50 of the magnet.
A double arm lever |52 is pivotally mounted
at |52 upon a member |54 extending downwardly
from the member 25 (Fig. 4). The lever |52 has
one arm. |55 extending upwardly between the
legs of the magnet |41 and has its second arm
|52 extending into the path of movement of a
yoke |51 which is pivotally mounted upon the
hangers |22. Said yoke has an extension |58
projecting into the path of travel of the pin 99
(Fig. 6).
In the operation of this portion of Ythe mech
anism a magnet |42 corresponding to any desired
record is momentarily energized by suitable
means, causing' the corresponding armature |44
to be moved into the path of travel of the tip |50
of the magnet. This may be done at any time
during the playing of a record or during the re
turn of a record to the magazine, orduring the
removal of a record therefrom. At the next suc
ceeding operation of the phonograph after the
record Just played has been returned to the mag
azine, the gear segment |25 engages the pinion
|22 and rotates the same through lone revolution
in the counterclockwise direction. 'I‘he rotation 30
of the pinion |22 causes a corresponding rotation
of the arm |29. If none of the solenoids |42 had
been energized the arm |22 would make a com
plete revolution moving the magazine ñrst to the
right to its' extreme position, then to the left to
an extreme position and then again to the right
to its starting position and the same record will
be removed and replayed.
l If. however, one ofthe armatures |44 to the
right of the played record (Fig. 6) has been 40
_moved into the path of the magnet tip |50, the
magazine will be mechanically stopped when said
tip engages said amature. When so stopped,
the magazine is positioned with the record corre
sponding to the' energized solenoid opposite the
finger 21 and in position to be removed by said
finger. Further movement of the arm |22 is, of
course, impossible but the friction drive connec
tion between said arm and the pinion |22 permits
|21 is forced downwardly freeing the pin |25
from its notch and permitting the pinion |22 to . the -pinion to complete its full revolution.
If the new record selected is to the left of the
rotate. When the gear segment |25 has passed
record returned, referring to Fig. 6, the magazine
' and the pinion has made a complete revolution,
the spring |29 again forces the member |21 up .is' moved completely to the right~ and the magnet
` tip |50 engages the amature |44 on the return
55 wardly to lock the pinion ~| 22 in place. _'
'I‘he hangers |26 carry a cross piece |4| _on travel to the left. The rear face of said` tip is
which there are mounted solenoids |42. best seen so shaped that it pushes the armature out of its
in Fig. 6. Said solenoids are equal in number to path and, therefore, does ndt stop the magazine.
the number ofA records in the magazine and the vWhen the tip |50 has passed .the armature, the
horizontal spacing of their center lines is> equal magnetic attraction of magnet |41-again draws
to the spacing of the records in the magazine. the armature outwardly to its former position 60
in the path of travel. Upon completing the left
Each of the‘solenoids v|42 is provided with an
internal shell |42 projecting through the cross hand movement, the magazine again moves to the
right until the tip |50 again encounters the ar
member |4| and each has an armature> |44 slid
ably mounted within said shell. As best seen in mature and is mechanically stopped thereby.
During the removal, the playing and the re 65
Fig. 10, the armatures |44 are formed with ‘a turn
of the record, the armature is held in en
central portion |45 of reduced diameter. There- .
- fore.Av when the solenoids |42 are energized. the
gagement with the- magnet by magnetic'attrac
tion. When the record has been returned to its
arm‘latures tend to move to the left in Fig. 10.V place in the magazine, the lever 24 strikes a notch
70 The travel of said armatures is limited by pins |22 in the cam track |22 which permits the rod
|45 abutting against the ends _of theshell |42. 22 to drop to its lowermost position. Since at 70
_ A permanent magnetl |41 of the usual horse
this time the pin~25 is operating in a substan
Yshoe-form is clamped to the undersurface ofthe tially vertical portion |22. of the guideway 24, no
member> 22 by means of a bar -|42 and screws |42. further movement of jthe finger 21 results but the
The tips of said magnet are formed as best Ishown pin 22 is permittedto'strike the extension |22
of the yoke |51 and to press the same downward
' ' 1y against the lever |52. 'I'he lever |52 is rocked
about its pivotal mounting> and the upper end
the bracket 55 or other suitable stop by the move'
ment of bushing 36 as the pickup arm is swung
clear of the record. During the last portion of
` thereof strikes the armature |44 and returns it e» this pickup movement a leaf spring |1|a secured
to normal position. The lever 34 immediately to the collar |66 strikes the army |64 and holds the
leaves the notch |59. releasing the yoke |51 and Ysamey against the bracket 55 during the subse
permitting the lever |52 to return to its normal quent inwardmovement of the pickup arm-to the
positionunderthe influence of a spring |6|. The starting point of the new record. This eiîectively
magazine is then free to move for the selection
of the next record to be played.
It is obvious that more than one record may be
pre-selected ata given time. If two or more of
the solenoids are actuated, the corresponding rec- ’
ords lwill be played in sequence without further
16 attention from the operator. >`In fact, all of
the solenoids may be actuated simultaneously,
whereupon all of the records will be successively
removed and played. y
-Electrical control switches
prevents a rapid clockwisemovement of the arm
|64 during this part of the pickup movement and 10
thus prevents premature actuation of the con- I
For energizing the solenoid 42 to stop the rec
ord changing movements, there tire provided a
pair of lleaf contactors |13 shown in Figs. 3 and 15
7 but omitted from Figs. 2 and 6 for the sake of
showing other parts more clearly. Said con
tactors are mounted on a block |14A in turn
mounted on a bracket |15 secured tothe bracket
55 and are suitably insulated from each other. 20
For energizing the magnet 4| to start the rec Freely
mounted upon the stud 62 (Fig. 7) there
ord changing operations there is provided a 'pair . is
a V-shaped member |16 having one arm pro-'of leaf contactors |62‘mounted on a base |63 se
vided with a notch |11 engaging the pin 11 and
cured to the deck plate »26 and suitably insulated `having
a second arm |16 extending above the
from each other. An arm |64 is freely mounted
lupon the sleeve 36 and has engaging the upper contact 'members |13 when the stylus _is- in' posi 25
tion-.above the starting point of the record. In
surface thereof a friction washer |65 preferably -Fig.;7
said arm is shown in the position it as
formed of cork._ A> collar v|66 is‘secured to the sumes at
the completion of playing of a' record.
sleeve 36 above the washer |65 and is properly
positioned to press the washer against the arm . When the stylus has- been returned to starting
position, the arm has been moved counterclock 30.
|54 with sutiicient pressure to cause the arm-nor
to bring the same over the contact members
mally to move with the movement ofthe sleeve. wise
When the stylus is lowered to engage the
However, said pressure‘ls not sumcient to pre
vent the arm l|64 from being mechanically moved record, the arm |13 is simultaneously lowered to
engage the uppermost of _the contact members `
relative to said sleeve. The arm |64 has a'nnger .|13
and press the same against the lowermost of 35
|61 movable through a slot |66 lin the deck plate
20 and adapted to strike’one of the contact mem , said members. A circuit is completed thereby
for energizing the solenoid 42 to stop the record
bers. |62 to make contact between said members. changing
The arm |64. also has a finger |69 extending be
neath the deckplate 20 to a position opposite a `
pin |16 carried upon the undersurface pf the sub ergized it is desirable that their circuits be im 40
mediately broken. In the case of solenoid 4|
|1| oi' the turntable.
this prevents chattering of the solenoid due to
By means of this arrangement, as the stylus _repeated actuation thereof when the eccentric
moves inwardly over th‘e surface oi’ the record,
of terminal groove is used on the record,
"(45 the arm |64 is frictionally moved to approach ytype
since with this type of \groove the finger |61
the contact members |62. However, as long as strikes the contact members | 62 each time the
the stylus is travelling in the reproducingÍ groove, record revolves until the record changing mech
the inward movement is very slight `for each rota
anism ‘has progressed suiiiciently to remove the .
tion of the' turntable. As the >finger v|51 ap
from the record. In the case of solenoid
proaches the position of the contact members -stylus
42, the immediate breaking of the circuit prevents
Y |62, the finger |69 reaches the path of travel of overheating of the solenoid. The breaking of
the pin |10. At each revolution ofthe turntable, these circuits is accomplished by means of a
therefore, the pin |16 strikes the finger |63 and snap switch g|19 mounted upon a bracket |90 be
moves the arm |64 backwardly against the fric
neath the clutch lever 39,- (shown in Fig..1-i``
tion ofthe washer |654 a suilicient distance to
omitted from Fig. 2 flor sake of clearne'ss)._
i prevent engagement with the contact members Said switch has a trigger |6| [extending >into
|62. When the stylus reaches the terminal the >path of travel of the pin 49 which is extended
groove |12 of the record, thearm |64 is quickly beneath the lever 39 for this purpose.Í .As the `
Vmoved inward a much larger distance than on lever 39 islmoved in one direction, the switch |19
to any previous revolution. The finger |61, there is snapped> to one position and as the lever is
fore, strikes the contactor |62 before the finger moved in the opposite direction the switch is
|69 can be struck by the pin |10 and a momen
snapped to the opposite position. . The switch
tary contact is made between said contact 'mem
l|19§inclutles two pairs'of contact members |62
' "bers |62. This contact will be made whether the , and |63 which are shown in a purely diagram
65 record isvprovided with the spiral terminal groove . , matic manner in Fig. 13. As the lever 39 is moved
shown in Fig. 1 or the oscillating eccentric ter
to the right, contactors |83 are’closed and con- `
minal groove used with other types of records, tactors |62 are opened. vAs the lever 39 is moved
since each moves the stylus rapidly inward dur- ` to the left, crontaotors |62 are closed and the c_on
ing onerevolution of the turntable. The momen
tactors |63 are opened,
lo tary contact of themembers |62 energizes the
For relay control of the motor, Ithere is. pro-`
`solenoid 4| by a circuit vto be hereinafter de
-vided a control box |64 (Fig. 13) which'may be
scribed and thus initiates the record changing
located at any convenient point on the machine v
and which includes a. pair of contact members
During the record changing operation the arm
Il |64 is frictionally moved counterclockwise against
|35 and a pair of solenoids |96 and |81.
shown diagrammaticallyin Fig. 13, the contact 75
members |85 are closed when solenoid |86 is
energized and are opened when solenoid |81 is
energized. For energizing the solenoid .'88 there
is provided a switch |88 which may be placed
5 at any desired position. For energizing the sole
noid |81, there is provided a switch |89 which is
carried upon a bracket |98 supported upon the
changing operation incomplete, the cycle of op
eration is started at the point at which it was
previously discontinued since the clutch gears 88
and 81 will still be locked in mesh. As soon as
bracket 58 'and which has a trigger |9„| extending
a new record is placed on the turntable and the
stylus is lowered to commence playing, the arm
|18 strikes the contact member |18, completing 10
from the figures). ' The trigger is provided with a-
the following circuit,-|98, 288, |82, 285, |18, 42,
L switch design but is shown in a purely diagramf
matic manner in Fig. 13. The pin |92 may be
placed upon the master cam 58 in position to
20 strike the switch |89 at any desired point in the
cycle of operation, but preferably operates after
the stylus has been‘lifted but before the actual
movement of the record is begun.
Wiring diagram and summary of electrical
Referring now to Fig. 13, the electrical ele
ments previously described are shown diagram
matically. In addition there are shown a trans
30 former |98 and a plurality of push button switches
28|, each of which is» connected to one of the
selector solenoids |42. Power mains |94 and |95
may be connected to any suitable source of al
temating current, preferably the usual 110 volts
and 60 cycles commercial supply, by a plug y|98.v
The power main |94 is directly connected to one
terminal of the motor 2| and to one of the pri
- mary terminals of the transformer |98. The
second power main |95 is connected to one of the
,40 contact members |85 and to the second terminal
of the primary winding of the transformer |98.
The second of the contact members |85 is con
nected by a- conductor |99 to the second terminal
of the motor 2|. Thus, when the contact mem
45 bers | 85 are in contact the motor 2| is directly
connected across the power mains and the ma
If, as is usual, the. previous operation of the
phonograph lhas been stopped with a record
into the path of travel of a pin |92 carried upon
the master cam 58 (shown in Fig. 7 and omitted
spring |98 which returns the same to initial pov
sition after engagement -of the pin |92. The pas
sage of the pin, therefore, makes only a momen
tary contact for energizing the solenoid |83.4 The>
switch |89 is preferably of the standard snap
is as follows,-|98, 288, 28|, 289, |42, 282, |88.
chine is in operation. When the |85 contact is
broken the motor stops and the machine ceases
to operate. The transformer |98 however is con
nected across the power mains independently of
the |85 contact and therefore is energized as
long as the plug |98 is in place.
'I‘he transformer |98 has one terminal of its
secondary winding connected to a distributory
55 conductor 288, branches of which lead to one of
282, |98. This circuit is complete since the clutch
lever 89» will be in the operating position in which
the |82 contact is closed. l'Said circuit energizes
solenoid 42 to withdraw the gear 88 from the 15
pinion 81 andA stop' the <record changing appa-`
At the same time, lever 88 breaks the
|82 contact and makes the |88 contact,- thus de- _, .
energizing solenoid 42.
When the playing of a record is complete, the 20
|82 contact is momentarily closed, completing
the> following circ`uit,-'-|98, 288, |82, 288,- |88, 4|,
282, |98. This circuit energizes solenoid 4| to
place the gear 38. in engagement' with the pinion
81 and start ‘the record changingy operation. At
the same time, the lever 89 makes the |82 con- '_
tact and breaks the |88 contact, thus> deenergiz
ing solenoid 4|.
Successive record changing cycles take place
'automatically as long as the control switch |88 30
is closed since the solenoid |81 is not strong
enough to pull the switch |85 to open position
against the continued pull of the solenoid |88.
During the successive cycles of operation all of
the r__selected records will be played in sequence
and> if the playing is continued thereafter, the l
last selected record will be repeated indefinitely
until the machine is stopped or another selection
. When it is desired to stop the machine the
switch .|88"is"opened, deenergizing solenoid |88.
This does not immediately stop the -'operation
since the- |85 switch remains in closed position
until solenoid |81 is energized by switch |89
when struck‘by the pin |92 at the proper time
inthe record changing cycle.
A While the foregoing specification describes a
continuous operation of the phonograph under
control of the switch |88 it is obvious that any
well known form of coin control may be sub 50
stituted. For this purpose the multiple coin con
trol shown in my ca_-pending application Serial
No. 13,387 _ñled March 28, 1935, is preferred.
Other modifications may obviously be made by
those skilled in the art without departing from
the |82 contactors, to the |89 switch, to one of
the scope of the invention as defined by the
the |82 contactors, to the |85 switch and to each
vof the push buttòns 28|. The second terminal of
appended claims.
the secondary winding of the transformer has
80 connected thereto a distributory conductor v282,
branches of which lead to each of the solenolds
|88, |81, |82, 42 and 4|_. Other conductors shown
in the diagram will be referred'to by number only
in tracing out the individual control circuits.
85 ~When it is desired to operate the machine, the
plug |98 is connected to the power source to
Yenergize the transformer and the control switch
The invention claimed is:
' 1_. In a record changing phonograph, the com
bination of a playing turntable, a record storage
magazine adapted to contain a plurality of rec
ords on edge, a. record carriermovable between
a vertical and a horizontal- position, a movable
finger adapted to roll a record from the maga
zine to the carrier when the latter is in the
vertical position and serving to prevent the rec
ord from rolling from the carrier while in that
>|88 is closed, completing the followingesecondary position, and a stationary guide member mount
circuit,---|88, 288, |88, 281, |88, 282,188. The
70 solenoid |88 is energized thereby, `closing the |85
contact and starting the motor. Before or after
the closing of switch '|88' as many of the push
buttons 28| as' desired are pressed to energize
the corresponding solenoids |42 to select the rec
75 ords to be played. This circuit for each solenoid
ed on the phonograph adjacent the line of move
ment of said carrier forv preventing- the record 70.
from rolling from the carrier during its move
lment from the vertical to the horizontal position
to deposit the record on the turntable.
2. In a record changing phonograph, the com-,
binationof a playing turntable, a record storage 75
magazine adapted to contain a plurality of rec
ords on edge,- a record carrier movable between
a vertical and a horizontal position, means for
i moving a record from the magazine to the car
rier when the latter is in4 the vertical position,
yielding means mounted upon said carrier for
engaging a surface of the record to guide the
same into positionl on the carrier and to retain
the same ‘thereon during movement' of the car
rier to the horizontal position to place the record
4 on the turntable, and means on said turntable
a vertical and a horizontal position, an inclined
trackway leading from the magazine to the car
rier, a movable ñnger adapted to roll a record
from the magazine to the carrier when the latter
is inthe vertical position and serving to prevent
the record from rolling from the carrier while
in that-position, means operable thereafter to
move the carrier to place the record on the turn
table for playing and to remove the same there
from after playing, astationary guide member 10
mounted on thephonograph adjacent the line of _
for disengaging said yielding means from the rec
movement of said carrier for preventing the rec
ord when the latter has reached the -turntable._ ord from rolling from the carrier during said
3. In a record changing phonograph, the com
movement, and means operating after said
bination of a playing turntable having a center
movement to retract the ringer to permit the rec
ing pin, a record storage magazine, a record car
ord to roll down the trackway to the magazine.
rier adapted to place` a record from the maga
7. In a record changing phonograph, the lcom
zine upon the turntable, and a yielding member ` bination of a playing turntable, a record storage
mounted upon said carrier for engaging a surface magazine adapted to contain a plurality of rec
'20 of a record while on the carrier to retain the same ` ords, a, record carrier adapted to receive a record 20
for transmitting it to the turntable. and return
thereon, said yielding member engaging the -,cen
lng it to the magazine after reproduction, means
tering pin when the record has reached the turn
table and being disengaged thereby from the
for moving the magazine with respect to the car- .
`rier upon the return of the record thereto and "
‘4. In a record changing phonograph, the com
rated therein a record storage magazine, a series
before transmitting the next record therefrom, 25
selective members adapted to be projected into
the path of movement of the magazine to arrest
of stop members movable into and out of the path
it at a predetermined position for transmission .
bination of a movable structure having incorpo
of movement of a projecting part o! said struc
30 ture, said part being shaped to move said stop
members out of its path when moving in one
direction but to be mechanically stopped there
_ by when moving in the other direction, and mag
netic means for again drawing said _stop mem
35 bers into said path when said projecting part has
passed the same moving in said ñrst mentioned
5. In a record changing phonograph, the com
bination of a movable structure having incorpo
of a selected record therefrom to the carrier, and '
means carried by said magazine and operable‘in 30
termediate the movements of the magazine for
retracting the operative member after it has 'once
acted to position the magazine.
8. In a record changing phonograph, the com
bination of a playing turntable, a record storage
magazine adapted to contain a plurality of rec
ords, said magazine being provided with com
partments for receiving the respective records,
a record .carrier positioned in the plane of one
of said compartments for receiving a record
net carried by said structure, and a series of stop therefrom. transferring it to the turntable and
members normally positioned outside the ‘range returning it to the magazine, means for normal
of attraction of said magnet but. movable into , ly reciprocating said magazine back and i’orth to
the path> of travel thereof, said magnet being carry the records and compartments past the car
45 shaped to mechanically stop the movement of rier, said means being adapted to-move the maga
said structure when it encounters one oi' said zine from one extreme position to the other`
stop members while moving in one direction, but through substantially a complete cycle, Va series
when moving in the opposite direction -acting of selective members adapted to be moved in the
40 rated therein a record storage magazine. a mag
ii'rst to movethe stop member out of said path
path of travel of the magazine for engagement
to permit passage or the magnet and then re
- thereby to arrest and position the .magazine with
turn the same by magnetic attraction to its posi
a selected record in the plane of the carrier for
transfer thereto, and means carried by said mag
azine for retracting the arresting member after
tion in said path.
6. In a record changing phonograph, the com
bination of a playing turntable, a record storage -the magazine has been' selectively positioned
55 magazine adapted to contain a plurality oi' rec thereby.
ords on edge, a record carrier movable between
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