US817856A - Mechanical musical instrument. - Google Patents

Description

PATENTED APR. 17, 1906.

APPLICATION FILED JAN. 16, 1905.

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,1 Rm w WW ,IM W nwwm w 4 9 W 1 i No. 817,856. PATENTED APR. 17, 1906.

0. A. KUSTER.

MECHANICAL MUSICAL INSTRUMENT.

APPLIOA'I'ION FILED JAN. 16; 1905.

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GM Q Q /M No. 817,856. PATENTED APR. 17, 1906.

v 0. A. KUST'BR. MECHANICAL MUSICAL INSTRUMENT.

APPLICATION FILED JAN. 16, 1905.

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i J 55 I I .58 I W .msi: lumen/Z07- PATENTED APR..17, 1906. 0. A. KUSTER.

L MUSICAL INST APPLICATION FILED JAN. 16,

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0. A. KUSTER. MECHANICAL MUSICAL INSTRUMEN APPLICATION FILED JAN. 16, 1905.

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No. 817,856. PATENTED APR-.17, 1906.

' A. KUSTBR.

MECHANICAL MUSICAL INSTRUMENT.

APPLICATION FILED JAN. 16. 1905 's SHEETS-SHEET 7,

W Fig. J5. 55 47/ 30 5] 1%; 39 1 JJ II III/ll Uz /2665i: jmzigizi'iwi' PATENTED APR 17, 1906.

. A, KUSTER. MECHANICAL MUSICAL INSTRUMENT.

APPLIOATION FILED JAN. 10, 1905.

8 SHEETS-SHEET 8.

UNITED STATES PATENT OFFICE.

- CHARLES A. KUSTER, OF RUTHERFORD, NElV JERSEY, ASSIGNOR TO 7 JOHN A. VVESER, OF NEW YORK, N. Y.

MECHANICAL MUSICAL INSTRUMENT.

Specification of Letters Patent.

Patented April 17, 190

Application filed January 16,1905. Serial No. 241,188-

ments, such as pianos or organs, in which provision is made for the automatic playing of the instrument by suitable mechanism controlled by the movements of a specially prepared music-sheet.

'lheimprovements in which the invention is embodied as described hereinafter are de- I signed with especial reference to their application to a piano in which the automatic or mechanical playing devices are operated through the medium -of air-currents and are inclosed within thecasing of the piano, so that the instrument is in appearance like any ordinary piano and is capable of being played upon by hand in the same manner as an ordinary piano. It will nevertheless be observed that the several features of improvement or many of them are capable'of embodiment in a mechanical piano player independent of the piano to be played upon, as well as in organs and in pianos of other types than that shown.

The object of the invention is generally to improve the construction, arrangement,-and operation of piano-playing mechanism, and especially to improve the action of such. mechanisms; to render all parts of the mechanism; as well as the mechanism of the piano itself, readily accessible for inspection and repair; to simplify the mechanism as far as possible; to improve the action of the air-e hausting devices and of the individual pneumatics which are directly involved in the playing of the Instrument with especial reference to loud and soft playing and to variations in tempo; to provide for the location of the individual pneumatics above the keyboard and in close proximity to the piano-acwill be more particularly referred to hereinafter.

In the accompanying drawings, in which for purposes of explanation of the nature of the invention it is illustrated as embodied in a piano of the upright type, Figure 1 is a view in front elevation of the upper portion of a piano embodying the invention above the line 1 2 of Fig. 3, with the front casing partly broken away to show parts behind the same.

Fig. 2 is a view in front elevation of the lower portion of the piano below the line 1 2 of "Fig; 3, with the front casing removed. Fig. 3 is a transverse vertical section on the irregular plane indicated by the line 3 3 of Figs. 1 and 2 looking toward theright. Fig. 4 is a trans verse vertical section on the plane mdlcated by the line 4 4 of Figs. 1 and 2 looking toward the left. Fig. 5 is a detail view, partly in vertical section and on an enlarged scale, of

the pneumatic which operates the damperrod. Fig. 6 is a view in end elevation and on an enlarged scale of the mechanism for winding and rewinding the musicsheet and parts associated therewith. Fig. 7 is a detail view, in horizontal section, on the plane indicated .by the line 7 7 of Fig. 6, showing particularly the rewinding-clutch and the brake. Flgs. 8 and 9 are detail views in vertical central section of the rewinding and winding clutches, respectively. Fig. 10 is a detail view, partly in section, on the same scale as Fig. 6, showing the means for controlling the winding and rewinding clutches, the direction of view being opposite to that of Fig. 6. Fig. 11 is a detail view showing particularly one of the buttons and its connections for controlling the loudness of-the tone of the instrument. Fig. 12 isa view in elevation showing the supporting-boards of the bellows-pumps and 1 the valve-chests supported therewith, the covers of such valve-chests being removed, together with the equalizing -bellows. Fig. 13 is a horizontal section on the plane indicated by the line 13 13 of Fig. 12. Figs. 14, 15, 16, and 17 are vertical sections on. the planes indicated by the lines 14 14, 15 15, 16 18 is a detail plan view of a group of.pneu- 16, and 17 17,'resp ectively, of Fig. 12. Fig. matics, showing the common wind-trunk. Fig. 19 is a detail view in elevation of the devices shown in Fig. 18. Fig. 20 is a view in longitudinal vertical section through one of As shown in Figs. 3 and 4-, each finger-key 1 is pivoted, as usual, at a oint between its ends and'acts through an a stract 2 and the usual devices, not necessary to be described in detail herein, upon the hammer 3, while the usual dampers, one of which is shown at 4, are arranged to be thrown away from the strings 5 by a bar 6. The latter is arranged to be swung upon its pivot through the medium of an arm 7 and a rod 8, which is operated through an arm 9 of 'a rock-shaft 10, mounted in suitable bearings from a pedal 11. The pedal is projected as usual'through the base-board 12 of the front casing of the piano and is located near the middle'line of the piano, as usual. The soft pedal 13 (shown in Fig. 2) is likewise located near the middle line, as usual, and is connected, as usual, with devices whereby the blow of each hammer is modified. The pedals 11 and 13, as will be noted upon reference to Fig. 2, are located as usual in ordinary upright pianos and are not displaced nor is their usual action interfered with in any manner by the mechanical playing devices hereinafter described.

The usual pedals 14 and 15 for the application of foot-power in the operation of the mechanical playing devices are located, as clearly shown in Figs. 2 and 3, at one side of the usual loud and soft pedals l1 and 13 in order that there may be no interference with the action of such loud and soft pedals and in order that the appearance of the piano when closed. may not differ from that of an ordinary piano. The pump- pedals 14 and 15 are arranged to be folded intothe casing of the piano when it is not being used for mechanical playing and for this purpose are hinge-1i or pivoted, as at 15, to a panelboard 16, carried by arms 17 pivoted,as at 13, within the casing of the piano and in such position that when the pedals are folded in the panel-board 16 stands flush with the front of the casing and forms a part thereof. The pivots 18,, as shown in Figs. 2 and 3, are

.carried by links 19, which are pivoted at their lower ends, as at 20, in a suitable frame 21, generally rectangular in outline, which is i secured within the casing of the piano, being provided with lugs 22 for the purpose. The upper member of the frame 21 at each end is slot-ted horizontally, as at 23, to receive the pivot-bolt 18 of the panel-board 16,'so as to ermit horizontal adjustment of the pivot for the purpose of bringing the panel-board exactly flush with the front casing when closed. Each pedal 14 and 1-5 is connected by a link 24 with an arm 25, which is secured to the movable board of the bellows-pump hereinafter referred to, so that upon the usual motion of the pedals the bellowspumps are actuated.- The arrangement of the links 24 and arms 25 permits the folding of the pedals upon the panel-board when the latter is swung up to form a part of the casing. It will also be observed that by withdrawing the bolts 18 from the frame 21 and disconnecting the links 24' from the arms 25 the whole pedal mechanism may be removed in its entirety.

The bellows mechanism (shown particularly in Figs. 3 and 12 to 17)-'comprises, as usual, two pump-bellows having each a stationary frame 30, a movable board 31, and a f I I returning-spring 31, and two equalizingbellows 32 and 33, connected therewith, to-

gether with other parts to be referred to hereinafter. All of these parts are carried by a stationary board 39, which is common to both pump-bellows, while each frame 30 is supported at its lower end, as shown in Fig.

3, by lugs 30 having pins 34 arranged to enter open notches 26, formed in the upper members of the frame 21. At the upper end the stationary board 39 rests against stops 35, secured to the piano-keyboard base or to i the frame of the piano or to some other part of the piano, as may be convenient. Therefore when certain air-ducts and levers are disconnected, as hereinafter described, and the holding-screws are withdrawn from the lugs 35 the whole bellows mechanism can be withdrawn as an entirety for purposes of inspection and repair.

The pump-bellows are of usual construction and need not be further described herein. The equalizing-bellows 32 and. 33, however, are unequal in capacity, as clearly indicated in Fig. 13. Each, however, comprises, as usual, a stationary board 36, a movable board 37, and inflatin or expanding springs 38. As clearly shown in Fig. 13, the main equalizing- -bellows 32 is provided with a greater number of expanding-springs 38 than is the auxiliary or soft bellows 33, so that as the degree of exhaustion of air from the pneumatics is dependent upon the expanding power of the equalizing-bellows the action of such pneumatics, and therefore the force of the h ammerblows,will be greater when produced by the action of the main or loud bellows 32 than when produced by the action of the auxiliary or soft bellows 3. The provisions whereby one or the other of the compensating or equalizing bellows is brought into action will be fully explained hereinafter.

Secured to or forming part of the stationary frame 30 of the twov pump-bellows is the supporting-board 39, having secured to its front face a strip 40, extending about its margin, and a second strip 41 a short distance below and parallel with the upper strip 40. The

emcee 3 stationary board 36 of both of the equalizingbellows is secured to the strips'eO and 11, whereby there is formed between the two pump-bellows and the two equalizing-bellows a common chamber 12, which communicates with the pump-bellows through valved ports 43, as usual, and with the main compensating bellows 32 through an open port 44, and with the auxiliary or low-pressure compensating bellows 33 through an open port 45. The movable board 37 of the auxiliary bellows 33 carries on its inner face avalve-dislr 46 to close the port when the bellows 33 is collapsed. The strip 41 forms with the upper strip 410 an air-duct 47, which communicates with the bellows 32 through a port 48 and with the bellows 33 through a port 19. At one end the duct 17 communicates with the pneumatics, as hereinafter described. In the duct 17 is mounted a slide-valve consisting, preferably, of two members and 51, which are connected together and are normallydrawn by a spring 52 to close the port 419 and to openthe port 1-8, so that under normal conditions the high-pressure bellows 32 is in communication with the pneumatics, as hereinafter described, and the low-pressure bel lows is cut on, whil if the valve be moved a ains-t thetensicn of the sprin the ort 48 is closed and the port 49 is opened to bring the low pressure bellows 33 into action,

I withgthe result that the for e of the blows of "the piano hammer 3 is reduced. For the movement or the-valve 50 51 a rod 53 18 provided, the same bein connected by a link 54,

as clearl shown in *ig. 2, with the movable board o a pneumatic 55. usual construction, such as that represented in Fig. 5, which is intend ed more particularly to show another pneumatic hereinafter referred to, the controlling-tube 56 thereof be ing connected, as shown in Fig. 11, with a vent 57 in the keyboard-base beneath the keys 1. In the retaining-strip 58 is mounted a button 59, whic lever 60, pivoted beneath the keys and protitled with a valve-disk 61 to cooperate with the vent '57. t will now be clear that if the button 59 be depressed the valve-disk 61 will be lifted from the vent 57 the pneumatic will be collapsed, and the slide-valve 50 51 will be moved against the tension of the spring52 to close the port 48 and open the port 49-. When the button 59 is released, the pneumatic 55 will be expanded and the valves-50 51 restored to their normal position by the spring 52, thereby again bringing the high-pressure bellows into action. The pneumatic 55 is connected by a duct 55 to the chamber 42, as shown in Figs. 2, 12, and 13, so that the pneumatic 55 will be collapsed as soon as permitted through the venting of the tube 56 in theusual manner, which need not be described in detail herein.

The button 62 (shown in Fig .1) by mech- The-latter is of l h controls a spring-pressed anism precisely similar to that shown in Fig. 11 controls the vent-tube 63 to a pneumatic 64, which is connected by an air-duct 65 with the chamber 42. The movable member of the pneumatic 64 is provided with an arm 66 in operative engagement with the damperrod 8, as clearly shown in Figs. 4 and 5, and upon pressing the button 62 the pneumatic 6a is collapsed and the damper-rod 8 is raised to throw the dampers away from the strings, as hereinbefore described, to permit a freer vibration of the strings.

v For the operation of the individual hammer-pneumatics the air-duct 47 is connected through aport 70 with a valve-box 71 The port is controlled by a slide-valve 72, which is operated through a rod 73, arm 74, rockshaft 75, arm 76, and link 77 fromv a lever 7 8, mounted in the key-block at one end of the keyboard, these parts being shown more particularly in Figsi, 2, 3, 10, 12, and 1d. The valve-box 71 is connected by horizontal duct 79 with a box 80, (see Figs. 2 and 4,) secured to the end of the piano frame or casing. The box 80 is preferably connected by a tube 81 with. a box 82 above the keyboard, and the latter is connected by a pipe 83 with the vertical header 8%, (see Fig. 1,) which is common to the several wind-trunks 8.5 of the several tiers of individual hammer-pneumatits 86, the construction and arrangement oi which will be more fully described hereinafter. The controlling-tubes 37 of the pneumatics 86 lead, as usual, to the perforated tracker with which the perforated music-sheet 89 cooperates in the usual and well-known manner. Thus when a perforation of the music-sheet in predetermined position passes over a perforation of the tracker 88 the corresponding pneumatic is vented and.

collapses, actuating, through. its movable member and the corresponding abstract 2, in the-usual manner the corresponding hammer 3. lapsed by the exhaustion of air through the wind-trunks 85, header 34, tubes and boxes 83, 82, 81, 80, and 79, valve-box 71, port 70, and exhaust-air duct 47. The movement of the lever 78 to cut off the communication between the hamnier-pneumatics and the airexhausting devices also operates to shift the connections of the music-sheet motor in such manner as to rewind the music-sheet upon its spool, the instrument being mute during the rewind'ing by reason of the cutting off of the air connections to the hammer-pneumatics. The connections for effecting the winding or rewinding of the music-sheet will be more particularly described hereinafter but reference will be had first to the connections for controlling the motor. As shown in Fi s. 12 and 15, tere is provided alongside tie valve-box 71, but independent thereof, a valve-box 90, which communicates through a. port 91 with the duct .47, such port being ICC The several pneumatics are 001-" vided with an arm 96, arranged to be oper-' I ated by the movement of the valve 72, as by a cam 97, mounted thereon, so that when the valve 72 is moved to close the. port.70 for the purpose of cutting off the hammer-pneumatics the valve 92 is also opened to establish a direct connection from the duct 47 through .the valveboX 90 and a duct 98 (shown in Figs. 1, 2, and to the motor 99, which.

may be of usual construction and may be connected to the spools of the music-sheet, as" hereinafter described. As will-be noted, the

valve 92 is opened to its full extent and is also openedwhen the nammer-pneumatics are cut off and the rewinding-clutch, as hereinafter described, is in engagement. Conse- -quently the motor is driven through the port 91. at a high speed, depending upon the de gree of exhaustion, for the purpose of rewinding the music-sheet upon its original spool. For the purpose of winding the music-sheet during the playing of the instrument, from its original spool to the winding-spool connection is also established between the exhausting devices (reprssented by the common chamber 42 and the motor) through the valve-box 90. For this purpose the chamher 42' is connected through a channel 100 (shown in Figs. 12 and 15) and a safety-pneumatic 101, the movable member of which carriesa valve-disk 102, adapted to close the channel 100 when the and a channel 103 wit a port 104 in the valve-box 90. The ort is'controlledby a slide-valve 105, whicli is connected by a-rod or link 106 with an arm 107 of a rock-shaft 108, (see Fig. 10,) an arm 109 of whioh is conneoted by. a link 110 witha lever 111, mountedadjacent to the lever 78. Movement of the lever 111 to a greater or less extent varies the opening of the port 104, and therefore regulates the exhaust-pressure upon the motor, so that the speed thereof is increased.

or diminished, as required. The motor 99 may be of ordinary construction and need not be described herein.

As shown in Figs. 1, 3, and 6, its frame 112 is' mounted upon the frame or case. 113, which supports the music-rolls, and the latter is secured, throu h suitablebrackets 114, upon the bar 115, forming apart of the structure which comprises the hammer-pneumatics 86, This structure has secured at each end thereof a blobk116, which rests upon an adjustable block 11.7, to which it may be secured by a screw at 1 18. A guide-block 119 is secured upon the block 117 and fixes the endwise position of the structure 115. The blocks 117 receive bolts 120, which are fixed in the main frame or case of the piano andare threaded neumaticcollapses,

to receive nuts 121 above and below the blocks 117. When the blocks 117 have.been properly adjusted as to height, the structure 1 15, with its hammer-pneumatics, the musicroll case 113, and the motor 99, can be withdrawn for purposes of inspection -or repair and replaced without requiring anyfurther adjustment of any of the parts. more, all that is reuired to permit'the re= moval of the severe parts named as an en- Further- The shaft of the motoris mounted in suitable bearingsoarried by the frame 112 and has secured thereon two sprocket- wheels 122 and 123. The sprocket-wheel 1.22 is connected 'by a chain 124with a sprocket-wheel 125 on a short shaft 126, mounted in suitable bear. ings carried by the frame or case 113 and having a pinion 127 secured thereto. The latter meshes with a gear 128, mounted loosely on the shaft 129, which carries the winding-on spool or roll 130. The hub of the gear 128 is grooved circumferentially, as at 131,fo engagement by a gear-shifting device he 'terreferred to and is also formed as one memoer of a clutch to engage another member 132, which is fast on the shaft 129.' As shown iii-the drawings, the gear 128 may be provided with holes 133 to engage pins 134, carried by the fast member 132. suitable bearings carried by the frame or casing 113 is also mounted a vertical rock-shaft 135, which has fast thereon, near its lower end, a fiat spring 136. Loosely mounted on theshaft 135 above the spring is an arm 137,

having a pin 138 to engage the roo've 131 in the hub of the gear 128. Sai arm is also provided with pins 139 and 140, which stand on opposite sides of the spring 136. It will now beunderstloold that if theshaft 135 be rocked in one direction the spring 136, hearing against the pin 140,will throw the arm 137 in the same direction to disengage the gear 128 or loose member of the clutch from the fast member 132. If the shaft be rocked in the opposite directidn, the spring 136 will be put under tension, so that as soon as the 'holes 133 of the gear 128 register with the pins 134 the engagement thereof will be effected.

The sprocket-wheel 123' of the motor shaft is connected by a chain 141with a sprocketwheel 142, which is mounted loosely on the shaft 143, which carries the rewinding spool pr roller 144. It will be understood that the spool or roller 144 is couplcd detachably .to

the ehaft 143 in any usuai manner, not necessaryto be explained herein. The hub of the sprocket-Wheel 142 is grooved circumferentially, as shown at 145 in Fig. 8, and is likew se provided With holes 145 to engage a pm 147, carried by a disk 148, which is fast on the shaft 143, the sprocket and disk thus con- I loosely mounted on the shaft 135 an arm 150,

provided With a pin 151 to engage the groove 145 in the hub of the sprocket 142 and with pins 152 and 153, which stand on opposite sides of the spring 149. Oscillation of the shaft 135.111 a direction to open the clutch v128 1'32 therefore puts the spring 149 under tension, so that the clutch 142 148 is closed as soon as the pin 147 registers with: one of the holes 146, Oscillation of the shaft 135 in the opposite direction to close the clutch 128 132 opens the clutch 142 148.

Upon the upper end of the shaft 35 is se cured, a cam 154, arranged to act upon a spring-arm 155, which carries a brake 156, normally resting upon. a disk 157, to give propcrtension to the music-sheet, the roll 130 beingat the same time driven somewhat slowly through the described gearing. Vfhen, however, the shaft 135 is oscillated to open the clutch of the roll 130 and to close the clutch of the roll 144 for the purpose of re-' Winding the music-sheet upon the roll 144, the brake 156 is lifted from the disk 157 by the cam 154 and the roll is driven at the full speed. of the motor, so that the reWindin g of the music-sheet takes place rapidly. It will be borne in mind that at this time the hammer-pneumatics are cut off from the exhausting devices, so that the instrument remains mute and the music-sheet runs loosely over the tracker 88.

For the operation of the clutches above referred to the shaft 135 is provided at its lower end with an arm 158, which is connected by a link 159 with a lever 160. "The lever 160 may be pivoted to the main frame or casing of the piano, as at 162, and at its 1 wer end is connected by a link 163 with the link 77, so that as the lever 78 is operated to I close the port for the purpose of cutting off the for the purpose of connecting the motor 99 with the exhausting devices at full exhaustpressure to rewind the music-sheet the shaft 135 is oscillated to open the clutch of the Winding-on roll 130 and to close the clutch of the reWinding-roll 144. 'As in all lever con nections of the instrument Which are re quired to be uncoupled occasionally, the connection between the link 163 and the lever 160 is maintained by a spring .161, Whichis secured to the link 17 3 and holds the same on the end of the lever 160. When the spring 'tionary members 172 of the pneumatics and to open the port 91 as by means of a projecting The staseveral pneumatics are likewise independen t of each 0 tner, each being formed with por 1723 and with the lower portion of the corre onding primary air-chamber 4 and of the corresponding secondary airw To unite all of the pneumatics a tier or series into one structure, so that they can be c handled and held firmly in position, While at the same time the parts of each pneumatic rear accessible for repairs, the, Without requiring the dismembering of adjacent pneuniatics, the board 1'76, to which the several bellows members 172 are secured, is extended from end to end of the series, being common to all. This board 176 has formed in its under side the upper portions of the separate primary air-chambers 174 and. the separate secondary air-oharnbers 175, there being no direct connection between adjacent primary chambers or adjacent secondary chambers. Each pneumatic is con:- pleted by an independent top board 177, it being understood that each pneumatic is provided with ports, valves, and interconnecting channels, substantially a usual and as shown in Figs. 18 and 20, but not necessary to ,be described in detail herein. Outside of the board 176 is formed the W1l1Cltrunk 85, which communicates with each secondary chamber 17 5 though independent port-178 and at its end or at both ends with the vertical. header or headers 84, so that each pneumatic is placed in (:OmHlllIliCit tion with the ah-exhausting devices. Y

The operation of the mechanical playing the corresponding abst act 2.

devices herein described is, in general the same as that of other mechanical devices of like nature, ept so far as has been fully explained he in. No further 8X: planation of the operation of sur h dev'ces is therefore necessary."

It may be noted, in addition to the advantages which have already been called to at playing tention, that the'location of the buttons 59 and (-32 in the key-strip 58 isnot only con veinient for the performer, but prevents the from being tampered with when the piano is closed, since they are then protected by the cover. Furthermore, it should be noted that onvenien tly the location of the tracker-box or music-roll case 113 upon the pneumatic structure 115.

- makes it unnecessary to employ tracker-tubes 87 of great length, while the securing of the music-roll case upon the pneumatic-case makes it possibleto remove the-two together without requiring joints in. such tubes. Again,:tl1'e location of the motor upon the music-roll case makes it possible to employ comparatively short chains 124 and 141, and therefore to avoid the irregularity in movement which is conse uent upon the vibration or swinging which is equ ent in the operaton of long chains.

It will be observed that the various improvements herein described tend to the per fection of the operation OI the mechanism, to the simplifying of the structure consequent to thereduction in cost of manufacture, and

increased facility in effecting repairs, while reducing the liability of the various parts of 1. In a mechanical musicalinstrumefit having a horizontal keyboard, keys and play ing devices operated by said keys, the combinatlon of power-Pneumatics in operative relation with said playing devices respectively,

tone-regulating pedals in operative relation with said playing devices and located centrally and pump-bellows, bellows-pedals and connections located to one side of said toneregulating pedals, substantially as described.

2. The'combination of a series of pneumatics, a frame or case supporting the same, a tracker-box mounted upon said frame or case, and a motor mounted upon saidtrackerboX, said pneumatics, frameand tracker-box being removable together, substantially as described.

3. The combination of a main frame or case, bolts secured therein, brackets mounted adjustably on said bolts, a series of powerpneumatics and a frame or case supporting said pneumatics and arranged to'rest upon ,said adjustable brackets, substantially as described.

4.1 The combination of playing devices, power-pneumatics in operative relation therewith, air-pumps connected with said pneu- 'matics, pump-o crating pedals, links ornnecting said, peda s with said pumps, a board upon which said pedals are hinged or pivoted, arms carrying said board, and adjustable swinging'arms upon which the first-named arms are pivotal y supported su'bstantially as described.

5. The combination of a main casing, play pump-bellows,..a board upon which said pedals are hingedor pivoted, arms secured to ,said board, and adjustable swinging arms re pivotupon which the first-named arms ally supported, substantially as described.

6. The combination of playing I devices, power-pneumatics in operative relation therewith, air-exhausting devices, music-sheetwinding devices, a motor therefor, connections between said air-exhausting devices and said pneumatics including a valve-box and slide-valve, connections betweensaid air-eX- hausting devices and said motor including a valve-box and valve, means to operate said slide-valve, and devices whereby said lastnamed valve is operated by the slide-valve when the latter moves, substantially as described.

7.. The combination of playing devices, power-pneumatics in operative relation therewith, air exhausting devices, music sheetwinding devices, amotor therefor, connections between said air-exhausting devices and said neumatics including a valve-box and slide-valve, connections between said air-exhausting devices and said motor including a valve-box and valv means to operate said slide-valve, and an rm disposed 1n the path of movement of the slide-valve and operatively connected with the last-named valve whereby said last-named valve is operated as the slide-valve moves, substantially as deslide-valve, connections between said air-exhausting devices and said motor including a -valvebox and a hinged valve, means to operate said slide-valve, and a shaft ha'v'ing an arm connected to said hinged valve and a second arm in the path of movement of the slide-valve, substantially as described.

9. The combination of a tracker-box, music-sheet winding and rewinding rolls mounted therein, a motor mounted upon said tracker-box and, removable therewith, and transmission-gearing between said motor and said rolls, said transmission-gearing including clutches, substantially as described.

10. A series of pneumatics, comprising separate bellows members for each pneumatic, a board common to the series and having air-chambers formed therein, and separate top boards, substantially as described.

11. A series of pneumatic's, comprising separate bellows members, a board common to all of the pneumatics of the series and having formed therein separate air chanibers, pneuniatics and ha: independent connec- 10 and separate top boards, substantially as detions with the air-chi riders of the series, subscribed. stantially as described.

1.2. The coinbinationwithaseries of pneu- This specification signed and witnessedniatic-s, comprising separate bellows n1en1- this 27th day of December, A. D. 1904. bers, a board common to all of the pneu- CHAS. A. KUSTER. natics of the series and having formed there- In presence ef in separate air-chambers, top beards, and a W. L. STRAUB,

Wind-trunk formed independently of said HENRY FOSKEL.

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