US1279245A - Remote control for phonographs and the like. - Google Patents

Description

1; w. BRYCE. REMOTE CONT-ROL FOR PHONOGRAPHS AND THE LIKE.

APPLICATION FILED DEC-22.` I9l6.

Patentedsept 17, 1918.

www 1 i y. i specically for Tao i ythereof in appendedv claims.

ment to be controlled sound chamber. 12 is scribe the same in JAMES warms Baron, or'BLooMFrELD, NEW Jansma asesinaronv 'ro THE- nomen comm, A vconronnrrron orcontracte'IcU'ny Y REMOTE cominci. ron' rnonoennrns im 'um man Specification of Letters Patent. i Patented Sept. 1.7, 1918s Application led December 22, 1916. Serial No.'13v8 ,46v3'.y .Y

o (z w/wm t may concern.'

Be it known that I, JAMES Warns Baron, u. citizen of-the United States of America, and a resident of Bloomfield, Essex county, and State of New Jersey, have invented certain new and useful VImprovements in Remote Controls for Phonographs and the` like, of which the following is a specification, ref-j erence being had to the accompanying drawing, forming a part thereof.

My invention relates to improvements in remote control for phonographs or other motor driven musical instruments. and more electrically actuatedv means the driving motors and' eX- pression devices for such instruments, such, for example, as a valve for varying the volume of sound produced by a phonograph.

Its 'object is to providea simple, efiicient and sensitive mechanism for starting the driving motor of a phonograph and for actuating an expression device therefor, with a manually operablev remote control device by means of which a person at any desired distance fromV such an 'instrument may start and stopthe' instrument and may also' control the expression device therefor, at will. f

yIn order that my inventionmay be thoroughly understood I will now proceed to dethe' following specificaand then point out the novel features for controlling tion,

Referring tothe drawings:

Figure 1 tion, of certain parts of a phonograph or the like, with its driving motorand witho actuating and control "devices embodying my invention applied thereto, the latter being shown diagrammatically.

Fig.- 2 isa sectional elevation ot a preferred form of aI manual control device.

l Fig. 3 is an elevation'of certain parts of a phonograph driven by aspring motor with Acertain -parts of the presentfinventionv applied thereto.this` figure showing certain modifications in construction which are mad-e tov adapt the invention to this type of motor drive. K i

responding parts in all the figures.

10 designates the tone. arm of the-instru and 11 apart'of its the expression device,

' solenoids 21-22, a

electro-responsive actuating;v

1s a side elevatlpn partly 1n secized ,magnet 51.V The relayalso comprises two magnet windings 55-56 of an equal number Like characters of reference designate cor-,-v

v arranged to be moved by a rod 13 toward 'or away from its -seat,to thereby produce in this case a valve more or less restrictionto *the size of the sound passage and to thereby vary the volume of sound emitted from the A instrument.

14 is the'revoluble platen upon which the producing records are supported 'and 15 is a shaft connected .by suitable gearing with said platen. 16 is .an electric motor connected byl means of abelt 17 and suitable sheaves Withthe shaft 15..' v

An electro-responsive,control motor is designatd gtmerally bythe reference numeral 20. hi

dash pot 24 connected with thev core. 25 is s motor comprises a `pair of'similarcommon core 23,: and a,-

one arm of a bell crank lever pivoted at 26 which is connected witlrthe core 23 by a .link 27. Another arm 2 8 'of thislever is connected with the valve rod 13 by means ofa rod18 and a small bell crank lever 19. 29 is a rod extendingrigidly from the bell crank lever and carrying a weight 30 by means of which thebell crank vlever and the different elements which are connected therewith may be counter-balanced to a desired extent. 32 is anl arm which forms a partof the lever and this carries at its outer end an electrical contact 33 which is supported thereon but insulated from it. This contact is adapted to be moved onto and to slide over and make electrical connection with various points on rheostat 34 as the position df the vbell crank lever 25 is changed.

40 is a manually operable current varying or control device which comprises a rheostat 41 similar inl resistance to the lresistance 34,

a movable contact 42 which isv adapted to be Y of oonvolutions wound in' opposite directions. 57 and 58 arestationary contacts between which is almovable contact carried by the pivoted armature53. Plus and minus A sensitive relay 50. is interposed between designate' mains from a suitable source of the lever arm electrical supply. From the plus main a wire leads through a resistance 60 and by means of a branch wire through the magnet winding 56. 61 is a wire which leads from this magnet winding to one end of the rheostat 41. 62 is a wire connected with the movable contact 42 and with the minus main.

Another branch of the wire from-the resistance 60 leads through the magnet winding 55, and 63 is a wire leading fromthe other side of this magnet winding to one end of rheostat 34. 64 is a wire leading from the contact 33 back to the minus main. 65 is a wire leading from plus main to the 'pivoted armature 53.

A wire 66 is connected with stationary contact 57 and with one end of the winding of solenoid 21. The other end of this solenoid winding is connected by wires 67 and 68 with the minus main. f y

69 is a wire from stationary contact 58 to one end of solenoid winding 22, the other end of which is connected through wires 67 and 68 with the minus main.

From the plus main a wire 70 is led to a spring contact 71. A similar spring contact 72 is connected by means o a wire 73 with one end of the winding of a control.

magnet 74, the other end of which is connected by a wire 77 with wire 68 and thus back to the negative main.

The spring contacts 71 and 72 are held apart by an insulated knob projection from 28 when the apparatus is not -in use.

The supply mains for the actuating motor 16 are designated by 80 and 81. The Wire 80 is connected directly with one of the terminals of motor 16. The other terminal of the motor isconnectcd by a wire 82 with a manually operated switch 83 by means of which the motor may be connected with the main 81. The wire 82 is also connected with a stationary contact 84. 85 is a movable contact on a pivoted arm 86 which is connected with the main 81. This arm carries the armature of magnet 74 which is .so arranged that when energized it will move the arm 86 in such a manner as to close the movable contact 85 against the stationary contact 84 and thus complete the motor circuit. Before specifically describing the structures shown in the other figures of the drawing, I will describe the operation of this device. When the manual control device 40 is in the position shown the sensitive relay 50, the control motor 20 and the valve 12,

will be in the positions in which they are shown and the apparatus will be at rest,- now, when the operator moves contact 42 onto rheostat 41 the circuit is thereby established through relay winding56. This will cause the pivoted arm 53 to be moved to the right to close a circuit through solenoid 21,

lwhiehthe 'contact 42 has been moved. As

soon as this occurs a circuit will be closed through relay winding 55 and the current through the latter will be equal and opposite to that flowing through relay magnet 56,

thereby neutralizing the mechanism in magnet 51.v The pivoted arm 53 will then be brought back by some suitable centralizing device (not shown) to its position between the stationary contacts 57 and 58 to break cause the core 23 and the parts connected therewith to come to rest.

The effect of the first movement of the core 23 will be to move the lever arm 28 to the right and this will move the insulated knob 78 away from spring contact 7 2, thereby closing a circuit through control magnet 74. This, when thus energized, will close the circuit of motor 16 at the contacts 84 and 85 causing the motor to rotate and to drive'the platen 14. -v

It is obvious that if the operator moves contact 42'of`f of rheostat 41 the operation just described will be reversed as this will cut ofi' the current flowing through `relay magnet 56 and because the current which still flows through relay winding 55 will cause the polarized armature 53 to move away from the pole piece 52 and to complete at 58 a circuit through solenoid winding 22. The core 23 will be pulleddownwardly thereby, until the contact 33 runs off of rheostat 34, thus breaking the circuit through relay winding 55. At such a time the insulated knob 78 will be in contact with spring contacts 72 and in such a position as to break the contact between 71 and 72, thus denergizing control magnet 74 and breaking the circuit through motor 16. between the contacts 84 and 85.

It is obvious that the motor 16 may be started or stopped at Will by manipulating the switch 83 if kthe remote control apparatus which I have invented is not used.

Let us assume that the manually controlled contact 42 is restin upon rheostat 41 and the solenoid control ed contact 33 is on rheostat 34,- if the operator desires now to vary the position of the lexpression control valve 12, he may move cont-act 42 over -rheostat 41 to include more or less of its resistance in relay winding 56 in the ,same

manner as that already described. The solenoids 21k and 22 will cause the movable contact 33 which they control to be moved over the rheostat 34 until it includes in relay winding 55 a resistance equal in amount to that part of rheostat 41 which is in circuit with the relay winding 56. This part of the circuit through solenoid 21 and this will,

the operation is `more fullyy describedin my copending. applleation for Patent Serial No.

:sel i wardly it'will v rheostat 11a thereofbefore the contact 42a runs off of Athe rheostat coils 41a.

138,465 filed herewith. y

In the form of the invention which 1s illustrated in Fig. 3, the shaft 15 is shown gear 'connectedl with a shaft 90 which is arranged to be driven by a-spring motor (not shown).4 On shaft-15 is a brake Iwheel 91 on which rests a brake shoe 92. This is connected with the core 93 of a solenoid 94, thewindings ofvwhich are connected to the wires 73 and 77 of the circuits previously described. 4

It Vmay be seen that when solenoid 94 is energized it will cause the brake shoe 92 to be lifted away from the brake Wheel 91 to allow thev sprlng motor driven shaft 90 -to rotate shaft 15 and the platen 14, and that when the circuit through solenoid 94 is broken the brake shoe 92 will come down onto the brake wheel91 to arrestrotation of these parts.

95 is a pivoted lever by means of which a pin 96 may be moved manually in a slotted yoke 97 which is connected with the solenoid core 93. These parts are provided so that the rotating mechanism may bev Started' and stopped at .will when Vmy device is'not used.

Referring now to Fig. 2, the device therein shown is one form of a remote manualcontrol device 40a; In this specific instance the wires 61 and 62 are led through a flexi- 0ble cable to the device. One of these is connected as shown in the diagraImFig. 1, with the rheostat 41a, and the other is connected With the movable contactlQf. This rests, when-the parts are in the position in which they are shown in Fig. 2, Vupon a collar of insulating material 100. An actuating handle 43 is in this case the end of ay plunger 101 slidable in acylindrical casing 102 and the parts are so arranged thatthe contact 42a may be moved onto thecoils of and over any desired part thereof.

103 is a latch pivoted at' 104 to the casing 102 and provided with a fingerpiece 105 by means of which it'may be released. This latch is spring-pressed intothe osition shown and has `to be released be ore the plunger 101 can be vwithdrawn from the casing 102, a sufficient amount to close the circuit between contact 12a and the coils of the rheostat 41a. 'After the catch has 'beenthus released and the plunger drawnoutresume its initial position in which it will arrest the inward movement plunger 101 by engaging the inner end This arrangement is provided so that` an operator manipulating the plunger 101 to Vvary the position of the control valve 12, willnot inadvertently force the plunger in cause the driving motor of the phonograph to stop, but he may of course force it in a suiiicient amount" to stop the motor by I have illustrated severalmodifications of certain parts of the apparatus to'show that I do. not limit myself to any specific form or construction, and in fact intend no limitations other than those, imposed by the appended claims. While AI have Vshown the invention as applied to the control of a phonograph, it is obvious that it is equally applicable to any motor drivensound producing instrument.

What I claim is:

l. In combination with a sound producing instrument 4having a driving motor and a movable expression varying member, means for starting and stopping said driving motor, a control motor connected with said starting and stoppin means, and with said movable member, an a remote control dev-ice connected with said control motor whereby said control motor may be made to actuate said starting and stopping means and to move said expression varying member to an amount and in a direction desired.

2. In combination with a sound producing instrument having a driving motor and a movable expression vvarying member, means for starting and lstopping said driving motor, a control motor connected with said starting and stopping means and with said movable member, and a remote control device electrically connected with saidcontrol vmotor whereby said control motor may be made to actuate said starting and stopping means and said movable member.

3. In combination with a sound producing instrument having a driving motor and a movable expression varying member, means for starting and stopping said driving motor, a controlmotor connected with said startingand stopping means and with said movable member, a remote control device electrically connected 'with said control motor whereby said control motor may be made to actuate said startingand stopping means and said movable member, and a twowire circuit for said manual control device.

4. In combination with a sound producing instrument havingy a driving motor and a 1 movableexpression varying member, meansA trol magnet to 'thereby actuate `said starting and stopping'means and may be' made to move said expression varying member to an amount and in a direction desired.

5. In combination with a sound producingv instrument having an electric driving motor and a movable expression varying member, means for starting and stopping said dr1ving motor comprising an electromagnetic relay. an electric control motor connectedpwith said relav and with said movable member, and a remote control device electrically connected with said control motor whereby said control motor may be made to actuate said start-ing and stopping relay and said movable member.

6. In combination with a sound producing instrument having a driving motor and a movable expression varying member, means for starting and stopping said driving motor, a control in otor connected with said starting and stopping means, and with said movable member, and 'a remote controldevice connected with said control motor wlierebv said control motor may be made to actuatev said starting and stopping means and to move saide-Xpression varying member to an amount and in a direction desired, said remote control device having a manually movable element arranged to be moved from a stop position to a driving .motor starting position and [over a plurality of positions for ad]usting the expression varying member. Y

7 In combination with a sound producing instrument having a driving motor and a movable expression varying ineuiber, means for starting and stopping said driving motor, a control motor connected with said starting and stopping means, and with said movable member, and a remote control device connected with said control motor whereby said control. motor may be lnadeto actuate said starting and stopping means and to move said expression varying member to an amount and in a direction desired, said remote control device having a manually movable element arranged to be moved from a stop position to a, driving motor starting position and over a. plurality of positions for adjusting the expression varying member, and a releasable latch for preventing the movement of said element from such adjusting positions to its stop position.

8. In combination with a. sound producing instrument having a driving motor and a lnovable expression varying member, means for starting' and stopping said driving motor. an electromagnetic control motor connected with said starting and stopping means and with said movable member,l a remote manual control device for the control motor comprising a circuit maker and an adjustable current varying element, a sensitive relay having opposed magnet windings and motor control contacts; a motor controlled .circuit maker and adj ustable current varying element, said manually con- -trolled 'circuit maker and curi'ent varying element being in one of the relay magnet windings and the motor lcontrolled circuit make' and current varying element being in the other relay magnet winding.

In witness whereof have hereunto set my hand this 20th day of December, 1916.

' JAMES WARES BRYCE. Y

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