US1115383A - Automatic musical instrument. - Google Patents

Automatic musical instrument. Download PDF

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US1115383A
US1115383A US55553410A US1910555534A US1115383A US 1115383 A US1115383 A US 1115383A US 55553410 A US55553410 A US 55553410A US 1910555534 A US1910555534 A US 1910555534A US 1115383 A US1115383 A US 1115383A
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instrument
chamber
valve
pneumatic
tube
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US55553410A
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Ernst Boecker
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Ernst Boecker
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10FAUTOMATIC MUSICAL INSTRUMENTS
    • G10F1/00Automatic musical instruments
    • G10F1/02Pianofortes with keyboard

Description

RBCKBR.

AUTOMATIC MUSICAL INSTRUMENT.

APPLIGATION FILED APR. 14, 1910.

Patented 0011.27, 1914.

3 SHEETS-SHEET 1.

WIT/VESSES BY @www Mfg A TTOR/VEYS THE MORRIS PETERS C01. PHUTU-LITHO WASHINCIUN n l:

E. BGKBR.

AUTOMATIC MUSICAL INSTRUMENT.

APPLICATION FILED APR.14, 1910.

1,1 15,883. Patented 0015. 27, 1914.

N11-E 11H-5- l/V VEN TOI? wc Wale/Gf WITNESSES: l

THE NOF-1R15 PETERS C0., PHorU 1.ITHO..WA5HINGION. D. r.'v

E. BGKER.

AUTOMATIC MUSICAL INSTRUMENT.

APPLICATION FILED APR. 14, 1910.

1,1 15,883. Patented 00u. 27, 1914.

W/TNESSES INI/ENTOR WMM By l1/MMF mmf/47%# ERNST BCKER, on NEW Yoan, N. Y.

AUTOMATIC MUSICAL INSTRUMENT.

Specification of Letters Patent.

Patented Oct. 27, 1914.

Application filed April 14, 1910. Serial No. 555,534.

To all whom t may concern:

Be it known that I, ERNST Bonnn, a citizen of the United States, and resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Automatic Musical Instruments7 of which the following is a specification.

My invention relates to automatic musical instruments and has for its object to provide a structure comprising a major instrument in which the main operating mechanism is located and in which certain musical elfects are produced and a seconda-ry instrument located at a distance from thev main instru-v ment and controlled by the mechanism in said main instrument, for producing certain other musical effects as for instance that of an echo, or of another instrument playing at a. distance.

To this end my invention consists in certain combinations and constructions of parts which will be hereinafter fully described and the novel features of which will be pointed out in the appended claims.

Reference is to be had to the accompanying drawings in which- Figure l is a diagrammatic view illustrating my invention; Fig. 2 is a. front elevation of the major or main instrument; Fig. 3 is a rear view thereof; Fig. 4 is a front elevation of the auxiliary or secondary instrument; Fig. 5 is av rear view thereof; Fig. 6 is an enlarged detail section on the line 6 6 of Fig. 3 and Fig. 7 is a similar view in the line 7-7 of Fig. 4.

In the drawings l represents the major or main instrument in which is located the motori? which as shown may be an electric motor although a spring motor or a motor of any other k ind suitable for the purpose may be employed if desired. The drive shaft of this motor is connected by means of a chain or belt3with a drive wheel l secured on a shaft 5 journaled in suitable stationary bearings (i.

A pinion 7 is carried by the drive wheel shaft 5 and is connected by means of a chain or belt S with a sprocket wheel or pulley 9 which serves to operate the usual perforated music sheet 10. The said belt or sprocket chain 8 passes over a tension pulley 1l joun naled in a suitable stationary portion of the instrument which pulley may be adjusted to take up any slack in said chain or belt in the well known manner. The music sheet l0 travels from a roller l2 carried by a shaft 13 journaled in suitable bearings over a series of levers il to a take up roller l5 secured to a shaft 16 which is mounted in stationary bearings on a suitable portion of the `instrument and is driven in the customary levers il are connected with downwardly depending rods Q2 the lower ends of which are secured to valves 23 controlling channels 24 located in said support 19. T he said valves 23 close the said channels against the admission of air and are normally maintained in position to close the ends of channels 2st against the tension of leaf springs 25 by means of the note sheet which prevents the said springs from actuating said valves and levers as clearly shown in Fig. l. The channels Ql are connected by means of tubes 30 with channels 31 located in the lower wall of an exhaust chamber 33 and each having one end located beneath a diaphragm 35. rThe exhaust chamber 33 communicates, through the medium of tubes 36 and 3621 with exhaust bellows 3T and 37a which are operated to produce a vacuum or suction in said chamber 33 by oppositely extending rods 38 and 38a. These rods 38 and 38a are connected with the shaft 5 of the drive wheel Ll and are reciprocated to actuate the bellows 37 and 3Ta as the said wheel 4 is rotated by the motor. In other words, as the wheel l rotates the bellows 3T is collapsed and the bellows 37 is expanded and then the bellows 3Ta is collapsed and the bellows 37 is expanded so as to produce a continuous and not an intermittent suction in said chamber 33.

The diaphragm 35 carries an upwardly extending rod 39 near the free end of which is located a valve 4l() controlling' passages /ll and which communicate respectively with the chamber 33 and the atmosphere. These passages 41 and 42 are each in communication with channels 43 located in the upper wall of said chamber 33, a certain number of said channels being connected with pneumatics 44. The movable member of each pneumatic 44 is provided with an extension 45 carrying a rod 46 suitably guided in its vertical movement in a guide 47 and having its free end in engagement with the levers forming part of a piano action a portion of which is shown in Fig. l the remainder being omitted for the sake of clearness as the same forms no part of the present invention. Certain other channels 43 instead of communicating with the pneumatics 44 are connected with a bellows 48 which in turn communicates through the medium otra tube 49 with a chamber 50. rlhis suction chamber 50 is also in communication in the well known manner with a number of devices 5l for producing the effects of various musical instruments preferably located in the upper portion of the instrument l. Thus as the music sheet 10, which as before stated is of the usual perforated kind, is operated or caused to travel over the levers 14, the ends 2O of said levers will drop into the apertures oi said music sheet in the usual way, the roller 21 being grooved to make this possible. As the said ends 2O of the levers 14 thusenter the said recesses or perforations of the music sheet resistance to the action of the springs 25 will be removed so that said springs will cause the opposite ends of said levers to be depressed and the respective valves 23 to be moved away from the ends of the channels 24. The said channels are by this operation of the valves opened to the atmosphere which raises diaphragm 35. As the respective diaphragm 35 is raised in this manner it causes the corresponding valve 40 to be lifted and establishes communication between either the particular pneumatic 44 and the chamber 33 to cause the said pneumatic to collapse and operate the piano action or between the said chamber 33 and the bellows 48 to cause said bellows to operate either or any of the devices 51. 1n other words as long as the valves 23 close the channels 24 the diaphragme 35 will not be raised, but the moment the valve 23 is moved away from its channel 24 the corresponding diaphragm will therefore be raised as described. 1t is to be understood that any number oi' these devices and the piano action may be operated simultaneously to give various orchestral effects, the same depending only upon the number oi perforations in the music sheet which register with the various levers 14 at the same time. So far the devices described may be of any well known character and form no part of my invention.

The channels 43 in addition to communieating either with the pneumatics 44 or bellows 48 are further each in communication with a pneumatic 52 through the medium of a tube 53. The movable member of each pneumatic 52 is provided with an extension 54 having its tree end connected with a vertically movable stem 55 on which the valves 56, and 57 are mounted. These valves 56 and 57 control a passage 58 connected with a pressure chamber 59 and an exhaust or suction chamber 60, the compressed air being forced into the chamber 59 through a tube 6l by means of the pressure bellows 28 while the air is exhausted from and suction produced in the chamber 60 through a tube 62 by means of the suction bellows 37. The pneumatics 52 and the structure forming the chambers 59 and 60 are preferably located on the portion of the main instrument although if desired the said elements may form part of the secondary instrument. Each passage 58 connects with a channel 63 located in the partition wall separating the chambers 59 and 60. Each of the said channels 63 communicates with a tube 64 which extends beneath a diaphragm 65 in the lower wall oi a suction chamber 66. Each diaphragm 65 carries an upwardly eX- tending stem 68 to which is secured the valve 69 located in the valve chamber 70 and controlling the passages 71 and 72 communicating respectively with the suction chamber 66 and the atmosphere. The valve chambers are each connected by means of a tube 73 with a channel 74 formed in a block 7 5 and communicating with a pneumatic 76 a series of which is secured to the lower face of said block. The movable member of each of the pneumatics 76 is provided with an eX- tension 77 to the free end of which is secured an upwardly extending valve stem 78 which carries the two valves 79 and 80. Each pair of these valves 7 9 and 8O controls a passage 8l in the lower wall of a pressure chamber 82, said passages 8l each communicating with said chamber 82 and also with the atmosphere. Channels 83 are located in the walls of said chamber 82 and establish communication between passages 8l and organ pipes 84 as clearly shown in Fig. 1.

The suction chamber 66 is connected with a suction bellows 85 by means of a tube 86, while the pressure chamber 82 communicates with a pressure bellows 87 through the medium of a pipe 88. Both. of these bellows 85 and 87 are operatively connected with a drive wheel 89 which in turn is connected with a motor 90 of any suitable kind by a driving belt or chain 91. rl'husv as the motor 90 is actuated, it will rotate the drive wheel 89 which in turn will operate the bellows 85 to produce suction in the chamber 66 and the bellows 87 to produce pressure in the chamber 82.

The chambers 66 and 82, pipes 84 and their relative parts together with the bellows .85 and 87 and the motor 90 and connected levers.

parts are mounted in a case 92 and form the secondary or auxiliary instrument. This secondary instrument is located at a distance from the main instrument and is preferably concealed so that its presence and the effects caused by said instrument are not easily located.

It is to be understood that a part of the series of levers 14 controls the operation of the musical 'devices in the main instrument, while the remainder of said series of levers 14 controlsthe operation of the 'secondary instrument and that the music sheet used in connection with my invention is perforated correspondingly. It isto be further understood that preferably only one instrument is in operation at any given time, or in other words when the main instrument is playing the secondary instrument is inoperative and vice versa. In order to automatically cut off one or the other instrument I provide tubes 92, 92a and 92b which extend from passages in the support 19 (similar to the channels 24) to and beneath diaphragms 93, 94 and located in the lower wall of a suction chamber 96. Valves 23-andl levers 14a, 1.4b and 14c similar to the levers 14 and operated by the music sheet in the same way control saidpassages in the same manner as hereinbefore described. Each diaphragm 93, 94 and 95 is provided with a stem 97 which stems carry respectively valves 98, 99 and 100 each located in a separate valve chamber v101, 102 and 103 communicating with the suction chamber 96 through the medium of apertures 104, the said chambers 101 and 102 also communicating with the atmosphere through the medium of apertures 105. The chamber 103, it is to be understood, is closed against the admission of atmospheric air and is not provided with an aperture corresponding to the apertures 105. The valve chamber 101 is connected by means of a tube 106 with a pneumatic 107 located on a stationary support 108 and the chamber 102 communicates by means of a tube 109a with a similar pneumatic 109, also carried by said support 108. The movable member' of the pneumatic 109 carries a valve stem 110 to which issecured a valve 111 which controls a normally open chamber 112 connected with the valve chamber 103 through the medium of a tube 113. The chamber 112 is further connected by means of a tube'114 with a pneumatic 114 secured to a/stationary support 115 and having its movable member provided with a rod 116 extending through a guide 117 on the support 115. The free end of this rod is located in close proximity to a plate 118 hinged at 119 to a stationary support 120 and of a width corresponding to the distance between extreme end levers 121 forming part of the piano action so as to be co-extensive with the entire series of said This plate 118 is maintained in an inoperative position by means of a spring 122 and is capable of being swung to a position over all of the levers 121 to render same inoperative as will be more fully described hereinafter. `The pneumatic 109 is maintained in an expanded condition by means of a spring 123 and has its movable member provided with an extension or lip 124 adapted to coperate with the hooked end 125 of a bell crank lever 126 pivoted at 127 on the support 108. The said bell crank lever 126 is controlled by a spring 128 and engages a projection 129 secured to the movable member of the pneumatic 107 as clearly shown in Fig. 1.

The tube 106 is connected by means of a branch tube 130 with a pneumatic 131 located on a stationary support 132 and the tube 109a is connected thro-ugh the medium of a similar branch tube 133 with a similar pneumatic 134 also secured to the support 132. A spring pressed latch 135 is pivoted at 136 on the support 132 and is provided with a hook 137 arranged to coperate with a projection 138 on the movable member ofv the pneumatic 134 and further is controlled by a projection 139 on the movable member of the pneumatic 131. The movable member of the pneumatic 134 further carries an extension 140 to the free end of which is secured a rod 141 extending through the wall of a valve chamber 142 and having its free end pivotally secured to a flap valve 143.` The said valve 143 is pivoted at 144 and is normally maintained against its seat 145 by means of a spring 146. The Said seat 145 divides the chamber 142 into two parts, said chamber forming part of the pipe or tube 61 'which is connected with the compression chamber 59.

The branch tube 130 is connected by means of a tube 147 with a pneumatic 148 secured to a stationary support 149 and having its movable member provided with an apertured extension 150 through which a vertically movable rod 151 extends. This rod 151 carries at its upper end an enlargement 153 and at its lower end a switch member 154 and is guided in its vertical movement in guides 155 on the support 149. The said rod is maintained in its'raised position by means of a latch lever 156 coperating with a projection 157 on said rod and pivoted at 158 on the support 149, said lever being held in engagement with said projection 157 by means of aspring 159. The said latch lever is connected by means of a link 160 with the movable member of a pneumatic 161 also located on the support 149 and connected through the medium of a tube 162 with the branch tube 133. The switch `memberu154 which as shown forms part of a nected by means of wires 164 with the motor 90 which drives the Wind device of the secondary instrument.

In operation the motor 2 is started by manually throwing in a suitable switch to operate the different bellows for producing suction and pressure in the various chambers in the main instrument. As soon as this has been done the music sheet 10 begins to travel over the series of levers 14 which are operated as the different perforations of said music sheet are brought into registry with the ends 20 thereof. As long as the perforations in said music sheet are such as to operate only those levers which control the devices in the main instrument only these devices will be actuated andthe effect will be that of the instrument playing close by. During this playing of the main instrument the valve 143 is closed so that the secondary instrument is cut olf, that is no compressed air can be forced into the chamber 59 and consequently even if the pneumatics 52 should be operated this would have no eifect y to operate the musical devices in the secondary instriunent. However, as soon as the secondary instrument is to be thrown in and the main instrument discontinued a properly located aperture in the music sheet will be brought into alinement with the end of the lever 14bwhich will accordingly drop into said opening and will permit the particular spring 25 to remove the cooperating' valve 23 from the mouth of the channel 24 with which the tube 92a is connected. The said tube being thus opened to the atmosphere the diaphragm 94 will be raised and the valve 99 operated to close the valve chamber 102 against the 'atmosphere and open it to communication with the suction chamber 96. The tube 109a will through this operation be connected with the said suction chamber 96 and the pneumatic 109l will accordingly be collapsed against the tension of its spring '123 and will be locked in this position by means of the latch 125 which vill snap into engagement with the projection 124. In this positionk of the pneumatic 109 the valve 111 closes the chamber 112 against the admission of atmospheric air so as to practically connect the tubes 113 and 114. Simultaneously with or at about the same time as the end of the lever 14b drops into the tune sheet aperture the end ofthe lever 14C drops into a similar aperture in said tune sheet and operates its connected valve 25 in the same way to open the tube 92b to the atmosphere to raise the diaphragm 95 and with it the valve 100. This causes lthe valve chamber 103 to be thrown into connection with said suction chamber 96 and also connects said tube 113 with said suction chamber and through the medium of the chamber 112 and tube 114 collapses the pneumatic 114% As the said pneumatic that all the other musical devices inthe main instrument are cut out in a similar manner at the same time. As the valve 99 is raised in the manner described and the tube 1092L is connected with the suction chamber 96, the branch tube 133 and the tube 162 which communicate therewith will also be connected with said suction chamber 96 so `that the pneumatics 134 and 161 will also be collapsed and pneumatic 134 will be locked vin this condition by the latch 137. As the pneumatic 134 isy thus collapsed the valve 143 will through the connection 141 be opened to permit compressed air to be forced into the chamber 59. At the same time the collapsing of the pneumatic 161 will swing the latch 156 on its pivot and thus release 'the projection 157 to permit the rod 151 and switch member 154 to drop by gravity into engagement with the switch member 163 to close the electrical circuit and start the motor 90 and consequently the various bellows in the secondary instrument to produce suction and compression in the several chambers in said secondary instrument.

As the music sheet now continues to travel the perforations therein will operate the levers 14 to control the secondary instrument in the following manner: As the end 20 of a lever 14 drops into an aperture in the music sheet, the connected valve 23 will `be lowered as before described, it being `understood that each spring 25 tends to ldraw the corresponding valve downwardly. 'As soon as a valve 23 has been moved as above described air will be admitted to channel 31 and will raise a diaphragm 35' andv with it a connected valve 40 and will bring a pneumatic 52 into communication with the exhaust chamber 33 through the medium of a tube 53 and channel 43. As this takes place the said pneumatic 52 will be collapsed and will raise the valve stem 55 and with it the valves 56 and 57 so as to cut oft communication between the suction chamber 60 and a channel 63., and establish communication between said channel 63 and the pressure chamber 59. Compressed air will rush through said channel 63 and connecting tube 64 under the diaphragm 65 and will raise the diaphragm and with it the stem 63 and valve 69. This will bring n a bellows 7 6 into connection with the suction chamber 66 through the medium of a tube 73 so that said bellows 76 will be collapsed. As the bellows 7 6 is thus collapsed the stem 78 and with it the valves 7 9 and 80 will be raised so as to close the passage 81 against communication with the air and nel and the tube 53 and will expand the to open it to communication with the pressure chamber 82. The compressed air contained in this chamber, or some of it will rush into said passage 81 and through the channel 83 to the corresponding pipe 84 which will accordingly be sounded. During this operation some of the suction has a tendency to operate the pneumatics 44 and piano action and other musical devices in the main instrument. These musical devices in the main instrument however being held against operation or cut olf this tendency has no effect. As soon as the end 20 of the lever l14 leaves the perforation in the note sheet the corresponding valve 23 will close the passage 24 against communication with the atmosphere. As soon as the valve 23 again closes 'the channel 24 which it governs the weight of the coperating valve 40 will cause it and its diaphragm 35 to resume their initial positions and will cut off the connection between the channel 43 and the suction chamber 33 and will open said channel to the atmosphere. Atmospheric air will rush into said chanpneumatic 52 so as to lower the valve stem 55 and with it the valves 56 and 57. Communication between the pressure chamber 59 and the diaphragm 65, through the tube 64 and channel 63 will thus be cut off and the said diaphragm will be brought under the influence of the suction chamber 60 owing to the fact that the valve 57 has been moved away from'one end of the passage 58 while the valve 56 has been moved to close the opposite end of said passage. The diaphragm 65 will now be returned to normal position owing to the suction and the valve 69 will close the passage 71 and open the passage 72. This will permit atmospheric air to enter the tube 73 and channel 74A and will expand the pneumatic 76 to its normal position so as to lower the valves 79 and 80 and close the passage 81 and channel 83 thus shutting off the compressed air from the corresponding pipe 84 which is accordingly silenced. These pipes it will readily be seen may be operated in different combinations so as to produce `various effects as for instance that of a quartet, which owing to the location of this secondary instrument will appear to be singing at a distance. Suction may be produced continuously in the chamber 60 if desired even when the secondary instrument is otherwise cut off as this would have no effect owing to the fact that the compression chamber 59 is cut o, or suction may be produced in said chamber only after the motor 90 has been started. A portion of a selection may therefore be rendered in the main instrument and the remainder, as for instance the chorus, may be played on the secondary instrument or a complete selection may be successively played on each instrument. Further, first one instrument may be operated and then the other at various points throughout a single selection as desired the intention being to produce one musical effect close by or near at hand and another musical effect in the distance or far away. At the point where it is desired to discontinue the secondary instrument and again throw in the main instrument the tune sheet is provided with an aperture into which the end of the lever 14a is arranged to project. As soon as said aperture registers with the end of said lever 14a the connected valve 23 will be lowered to open the tube 92 to the atmosphere and thus raise the valve 98. This will connect the tube 106 with said suction chamber 96 and will collapse the pneumatic 107 and swing the lever 126 on its pivot and the latch 125 out of engagement with or away from the projection 124 and permit the spring 123 to return the pneumatic 109 to its expanded condition. This will raise the valve 111 and disconnect the tube 113 and 114 and permit atmospheric air to enter the tube 114 to restore the pneumatic 114a to its normal or expanded condition so as to withdraw the rod 116 from engagement with the plate 118. The spring 122 as soon as this happens will swing said plate away from the levers 121 which are therefore again free to be operated it being understood that simultaneously therewith all the other musical devices in the main instrument are again thrown in by similar means.

At the same time that the pneumatic 114 is operated as just described the pneumatic 131 will also be collapsed through the medium of the tube 130 and its connection with the tube 106 and will swing the latch 137 away from the projection 138 and release the pneumatic 134 which will close the valve 143, the spring 146 serving to return said valve 143 to its closed position and the pneumatic 134 to its expanded condition. Simultaneously with this operation or practically so the pneumatic 148 will be collapsed owing to the fact that it is connected with the branch tube 130 through the medium of the tube 147 and will raise the switch member 154 away from the switch member 163 to break the electrical circuit and stop the motor 90. As the switch member 154 is thus actuated the projection 157 will also be raised and the latch 156 will snap thereunder to maintain it n its raised position until again released by the operation of the pneumatic 161 as herein before described. The opening in the note sheet which operates the lever 14b need only be of small dimension as the said lever 14b need only be operated for a space of time long enough to collapse the various pnuematics 109 and 134 which will be maintained in their collapsed condition by 'means ofthe respective latches 125 and 137. The pneumatic 114a remains collapsed as long as the pneumatic 109 is collapsed during which time the valve 111 seals the chamber 112 and prevents atmospheric air from entering the tube 114 and expanding said pneumatic 11452 The aperture which operates the lever 1&1c need also only be a small one as it is only necessary to raise the valve 100 long enough to collapse the pneumatic 1111-a after the valve 111 has been lowered to seal the chamber 112. Likewise the opening` controlling the operation of the lever 14a is ofsimilar size to cause the collapsing of the pneumatics 131 and 148 which may almost immediately -be permitted to resumektheir normal condition. The necessity for extremely long perforations or apertures with the consequent weakening of the tune sheet is thus done away with. 1f desired the chamber 66 and its coperating parts may be omitted, in which case the tubes 64 would be connected directly with the pneumatics 76 and the pressure in the chamber 59 would be changed to exhaust. 1n this instance, therefore, the chamber 59 would become an exhaust chamber as well as the chamber 60 and the valve 56 would be left off. Thus the pneumatics 52 would be operated as hereinbefore described and the valve 57 would be raised to subject the pneumatics 76 directly to the suction in said chambers 59 and 60. therwise the device would operate trie same as before.

An operating device similar to that which operates the switch 154i, 168 and with similar connections may be provided for operating the switch which controls the motor 2 to break the circuit and thus stop the instrument entirely, it being understood that an aperture or perforation is provided in the tune sheet at the end of a selection for this purpose. instead of operating both instruments pneumatically the same may be operated electrically by substituting wires for the various tubes and providing magnets for collapsing the various bellows or pneumatics or similar devices it being understood of course that the wires are connected with a suitable source of electricity and that the levers 14, 14a, 14th and 14C would in this case periodically close and open the circuits. With my construction it is possible to operatev each instrument successively to produce various efects for instance that of an 0rchestra playing'close by and then an echo thereof at a distance or of a different musical effect in the distance as for instance the singing of a quartet.

Changes in the specic construction shown and described may be made within the scope of the claims without departing from the spirit of my invention.

I claim:

1. In an automatic musical instrument,

the combination of a main musical instrument, a secondary musical instrument, separate independent driving means for operating each instrument and means controlling the -operation of the sounding devices of both instruments and operated by the driving means in one instrument and adapted to also control the operation of the driving' means in the other instrument.

2. ln automatic musical instruments, the

combination of a main musical instrument, a secondary musical instrument, separate independent motors for independently operating each instrument, and 'means operated by the motor in said main instrument for start-l note sheet, separate driving means for thesecondary instrument and devices on said note sheet for controlling the operation `of the driving means of said secondary instrument. I

e. In automatic musical instruments, the combination of a main musical instrument provided with sounding devices, a secondary musical instrument provided with soimding devices and located at a distance from the main instrument, separate means for actuating said sounding devices in each instrument, means located in one instrument for controlling the operation of the sounding devices in both instruments and means for rendering the sounding devices in one instrument inoperative and for simultaneously rendering the sounding devices in the other instrument operative.

5. ln automatic musical instruments, the combination of a main musical instrument, a secondary musical instrument located at a distance therefrom, means for operating said instruments, means for throwing one of said instruments out of operation, a valve controlling the other instrument and means for bringing about the operation of said means and said valve simultaneously.

6. In automatic musical instruments, the combination of a main musical instrument, driving means for said main instrument, a secondary musical instrument located at a distance from said main instrument, driving means for said secondary instrument, a connection between said instruments, a note sheet operated by one of said driving means and adapted to control `either lof said instruments and devices on said note sheet for bringing about an `operative relation between either of the said instruments and said note sheet.v

7. In automatic musical instruments, the combination of a main musical instrument, a note sheet, means for actuating said note sheet, devices controlled by said note sheet for normally operating the sound producing devices in said main instrument, av secondary musical instrument, independent driving means therefor, means controlled by said note sheet for concurrently bringing the sound producing devices in the secondary instrument under the control of said note sheet and for starting the driving mechanism of said secondary instrument, additional means controlled by said note sheet for rendering the sound producing devices in the main instrument inoperative and means controlled by the note sheet for returning the parts to their normal condition.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. n

ERNST BOCKER. Witnesses:

JOHN A. KEHLENBECK, M. H. LocKWooD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318480A (en) * 1965-06-07 1967-05-09 Robert C H Simpson Printer ticket scanning apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318480A (en) * 1965-06-07 1967-05-09 Robert C H Simpson Printer ticket scanning apparatus

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