US552796A

US552796A - And robert w

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Publication number: US552796A
Authority: US
Publication date: 1896-01-07
Anticipated expiration: 1913-01-07

Description

(No Model.) 2 Sheets- S heet 1. W. B. TREMAINE 8; R. W. PAIN. MECHANICAL MUSICAL INSTRUMENT. No. 552,796. Patented Jan. 7,, 1896.

\ \l w & 8 \x if Q U AN DREW EORAMAM. PHOTGUTMQWASHINGTDN. 0.0

(No Model.) 2 Sheets-Sheet 2. W. B, TEE-MAINE & R. W.'PAIN.

MECHANICAL MUSICAL INSTRUMENT.

No. 552,796. Patented Jan. 7, 1896.

AN DREW RBI-"MAM. PHOTD-UTHQWASNINGTOKEC.

UNiTEn STATES PATENT OFFICE.

\VILLLUI ll. TREMAINE AND ROBERT lV. PAIN, OF NElV YORK, N. Y.

MECHANICAL MUSICAL INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 552,796, dated January 7, 1896.

Application filed June 21,1895. Serial No. 553,590. (No model.)

To all, whom, it may concern:

Be it known that we, XVILLIAM B. TRE- MAINE and ROBERT V. PAIN, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Mechanical Musical Instruments, of which the following is a full, clear, and exact description. 7

This invention relates to mechanical musical instruments in which perforated sheets of paper are used in combination with a series of air ducts or passages leading to musical reeds, pipes or other sounding devices, or to mechanism for operating the sounding devices, which are caused to sound by the exhaustion or pressure of air, all of which musical instruments are well known.

lleretofore it has been very difficult if not impossible to run two perforated musicsheets, each operating a separate and independent musical instrument, synchronously or together for the two musical instruments controlled by the two perforated music-sheets to play together in unison, the difficulty being caused by the tendency of one of the 1n usicsheets in traveling over the air-ducts for the operation of the sounding devices to get ahead orin advance of the other, by which the perforations in such advanced music-sheet would cause its sounding devices to sound before these in the other music-sheet. This occurs from a variety of causes well understood and needing no particular description herein, and the object of the present invention is to combine mechanism in such manner with the travel of two or more perforated music-sheets, each controlling a separate or independent organ, or bank-organ, or other musical instrument, that the two or more music-sheets will run or travel synchronously or together, in such manner that the music played on the several organs, or bank-organs, or other musical instruments controlled by the perforated music-sheets will be rendered synchronously or together in point of time, enabling, for instance, on one organ, or bank-organ, or other musical instrument the accompaniment to be played and a solo or the melody or other part to be played 011 another organ orbank-organ, so that the musical piece being played by the several instruments would be performed together or in the same time, and the invention consists in the combination of two or more organs, or bank-organs, or other musical instruments, each operated or controlled by a separate or independent perforated music-sheet, and means for controlling the movements of each of said perforated music-sheets, so that the two or more perforated music-sheets will travel together, or in the same time, for the playing of the two or more organs or other musical instruments synchronously or together, all substantially as hereinafter fully described; and the invention also consists of the construction and arrangement of the various parts of the apparatus for carrying out this invention, all substantially as hereinafter fully described, reference being had to the accompanying sheets of drawings, in which is illustrated the present invention as arranged to operate the sounding devices of two separate and independent musical organs, or bankorgans, or other musical instruments by two separate perforated music-sheets, the musical instruments not being shown.

The drawings represent two perforated music-sheets, each being arranged to operate in connection with all the necessary parts for running the same fora separate organ, in connection with the parts of the present invention, the parts of one being the duplicate of the other, and arranged one above the other, the upper one representing one set or system, and the lower one the other set or system, and both substantially lettered alike, the description of one answering fully for both, there being also shown parts which connect the two systems together for each to be governed by the movements of the other, to cause the travel of the perforated music-sheets over the raceways or tracker ranges to be synchronous orsimultaneous, so that the music of both organs or other musical instruments will be played together for the proper performance of the music arranged thereon.

I11 the drawings, Figure 1 is a central vertical section of the operating parts of this invention, in connection with two perforated musicsheets and their operating mechanism, with parts broken out and in side view, for the operation of two perforated music-sheets in accordance with this invention. Fig. 2 is an end view. Fig. 3 is a partial vertical section of the upper set or system and a front view of the lower set or system, showing some of the parts in different positions from that shown in Fig. 1.

In the drawings, A represents a perforated music-sheet in the upper set or system, and A the perforated musicsheet in the lower set or system, each secured to a separate music or delivery roll 13, and adapted to travel over a separate tracker range or raceway O and to be wound upon a separate take-up roll I) in the operation of the instrument, each raceway C having a row or series of air ducts or passages E, the passage of air through which,

when connected to the musical part of the instrument, causes the reeds, pipes or other sounding devices to sound by the exhaustion of air, all substantially as usual in mechanical musical instruments and needing no par ticular description herein.

In the drawings the music-sheets, the music and take-up rolls and raceway are shown as broken off, the parts not being shown atone end, but constructed and arranged as usual in such instruments.

The journal a of the music-roll is detachably secured at its end to a short shaft F, adapted to turn in bearings in arms 6 of a bracket G, secured to the main board or support H, and having on its end a pulley J, the turning of which shaft turns the music-roll with it.

The take-up roll D is arranged by its journal d to turn in a bearing of a bracket K of the support II, and secured on the end of the roll is a gear L, which is arranged to engage with a small gear or pinion M on the end of a short shaft N, arranged to turn in bearings in arms 6 of a bracket P, secured to the supporting-board and having secured to its other end a friction clutch or disk Q.

R is a shaft axially in the same line as the shaft N and arranged to turn in hearings in arms f secured to the support and to move longitudinally back and forth therein within certain limits. On the end of this shaft R is a friction clutch or disk S which is opposite the other clutch Q on the shaft N and is arranged to bear again st the clutch and be held to such engagement by a flat spring T secured at g to the support and bearing by its free end It against the outer end of the shaft R.

The shaft R of the lower system has two pulleys U V secured to it, one, V, of which is the driving-pulley and is to be connected by a belt to any suitable motive power, and the other pulley, U, is connected by a belt (not shown) to another pulley \V secured to the shaft R in the upper system, by which motion is communicated from the lower-shaft R to the upper shaft R,,so that through the gear connections with their respective take-up rolls D these rolls are turned to wind their respective perforated music-sheets thereon and to cause the music-sheets to travel over their respective raceways or tracker-ranges C.

The outer end of each perforated musicsheet is arranged for its convenient attachment to and detachment from its take-up roll in the usual manner, as is well known in these mechanical musical instruments, and which it is not deemed necessary to more particularly describe or show in this application.

The music-sheet is first wound upon the music-roll and its outer end secured to the take-up roll, and in the operation of the instrument the musicsheet travels over the raceway and is wound upon the take-up roll, and when all wound thereon it is unwound therefrom back onto the music-roll and its end detached from the take-up roll, when the music-roll with the music-sheet is removed from the instrument and another placed thereon for the playing of another tune, as usual.

The rewinding of the music-sheet upon the 1nusicroll is accomplished by mechanism arranged on the shaft R, the moving of which puts the shaft in position to be turned in the opposite direction, for the turning of the music-roll in the right direction to reverse the movement of the music-sheet, the shaft 1* connected to the music-roll being operated by a belt (not shown) which runs over a-pulley Y on the shaft R and another pulley J on the shaft F, and when the music-sheet is entirely rewound upon the music-roll the shaft R is put in proper connection again to turn the take-up roll as before, all of which is as usual in these musical instruments and needs no particular description herein, as it is no part of the present invention.

B is a box secured to the support and having a chamber C from which the air is exhausted through a pipe I) by any suitable air-exhaust mechanism, and such as is generally employed in these musical instruments. In this chamber C is secured by one of its sides a small pneumatic bellows E, its other side or board on being free to move to and from it, as usual, and on the end of this board m is secured a strip a, to the outer end of which is secured a stem or rod E, which extends outward through an air passage or opening G in the side or wall II of the box and arranged to be guided in its movements in a bearing in an arm J secured to the box side H, the rod extending beyond the arm J having a shoulder or head 1'' with a spiral spring t on the stem between the arm J and the head 7' to hold by its tension the rod outward, and thus the pneumatic bellows E closed, as shown in Fig. 1. are secured two disks or valves K L, one, K, within the chamber 0, and the other, L, outside thereof, to respectively close or open the passage G to air passing into the chamber as the one, K, or the other, L, respectively bears or rests close upon and over the opening G in the movements of the pneumatic bellows E.

M is an air-passage through the side ll of the box into the pneumatic bellows E, in which is inserted a small tube "a, which projects outwardly therefrom.

On this stem F N ear the end of the raceway or trackerrange 0 beyond the line of air-passages E is an air-passage N extending inward a short distance and then longitudinally outward to the end of the raceway, in which is inserted a tube t, which projects outward, its end being connected to the outer end of the short tube 10 in the passage M to pneumatic bellows by a short piece of preferably flexible tubing 10.

From the middle of the passage G is a passage P extending through the side H and lower end of the box B, and opens through the other side of the box into a large bellows Q, which is secured by one, y, of its leaves to the outside of the box.

To the block a secured to the movable leaf R of this bellows Q is pivoted at Z) by one end a link S, its other end being pivoted at (7 to a vertical lever T pivoted at c to an arm U of the support, the lower end of this lever being forked, as at f, Fig. 2, and freely straddling the shaft R, and arranged to bear at such end against the side of a collar V secured to the shaft R by a set-screw g.

To a block 7L secured to the movable leaf R of the bellows Q" in the upper system is pivoted at m one end of a link q pivoted by its other end at n to the upper end of a ver tical lever lV, which is centrally pivoted at r to the support, its lower end being pivoted at t to one end of a link A pivoted by its other end at u to a block '0 to the movable leaf R of the bellows Q in the lower system, as shown.

In each perforated sheet near its edge w and extending along the length of the same at any desired regular intervals, and preferably in the same relative positions in relation to the perforations representing the music in the sheets, are perforations B and in each sheet these perforations B are arranged in such a line longitudinally on the sheet that in its travel over the raceway or tracker-range they will in succession pass over the opening or passage N in the raceway or tracker-range. in locating these perforations on the musicsheet it is preferable to have one at the beginning of each measure of the music, but such locations must be the same in all the music-sheets used.

With the parts in the positions shown in Fig. 1, with the air-exhaust mechanism of the musical instruments in operation, if the two music-sheets are then caused to travel from their music-rolls to their take-up rolls, as their perforations 0 pass over their respective airduets in the raceway, the music represented by the perforations in both music-sheets will be played synchronously or together; but if, for instance, the upper music-sheet should get somewhat ahead or in advance of the lower music-sheet, so that one of its marginal perforations B would arrive at and be over its air-duct N in its raceway before the same located marginal perforation B in the lower music-sheet would reach its corresponding air-duct N, immediately air will pass down the air-duct N in the upper raceway through its connecting-tubes o to into the pneumatic bellows E, opening the same and moving the valves K and L to open the passage G to the air-chamber C and close such opening to the outside, as shown in Fig. 3, in the upper system, and in such operation of these two valves air would be exhausted from the bellows Q through the passage P into the exhaust-chamber 0, closing the bellows Q, which would swing the lever T connected thereto and cause its forked end to press against the collar V on the shaft R and move the shaft longitudinally outward against its spring T, and with it its clutch S away from its opposite clutch Q, disconnecting the two clutches, when i11- stantly clutch Q and its shaft N would cease revolving, causing the take-up roll B in connection therewith by its gear and musicsheet A to stop. At the same time the bellows Q would move the lever \V for it to open the lower bellows Q, operating the lever T, attached to it, for its forked arm to be moved back from the collar V on its shaft R, leaving this lower shaft free for the pressure on it of its spring to hold its clutch S in contact with the clutch Q on its gear-shaft N, and thus keep the lower take-up roll in motion until its music-sheet moves sufficiently for its marginal perforation B to come over the air-duct N in its raceway, when immediately air passes down through such air-duct through its tubes 4; a into the pneumatic bellows E, and opening it moves the valves K L to respectively open the passage G to the exhaust-chamber O and the passage P leading to the bellows Q, closing the bellows by the exhaustion of air therefrom, swinging its lever T for its forked arm f to move and press upon the shaft-collar V. At the same time the lower arm of the lever \V is swung inward, moving its upper arm outward and opening the upper bellows Q, causing its lever T to swing for its forked arm f to move back and from the collar V on its shaft, allowing the spring T to move the shaft inward, and thus its clutch S against and in. contact with the other clutch Q, communicating motion to its shaft and gear, turning the musie-roll and moving the upper music-sheet, which motion will then be in unison with the lower music-sheet, and so continuing until either one or the other gets in advance again, when the same movement of the pneumatic bellows and levers takes place, and disengagement of the clutches, stopping whichever music-sheet is in advance until the other catches up with it, as described, when through the movement of the lever XV an equilibrium is again established between the two systems, when they continue in unison as before, and so on.

In Fig. 3 the clutches in the upper system are shown as disconnected, and the clutches in the lower system as connected, indicating that the music-sheet in the uppersystem is at rest and the music-sheet in the lower system in motion, and that as soon as the music-sheet in the lower system has moved into its position of unison with the upper music-sheet, causing its pneumatic bellows and lovers to operate as above described, the parts will re sume their same relative positions as shown in Fig. 1, when the two music-sheets will ravel again in unison as before.

Just below the passage N in the upper raceway is a passage D which extends inward and then longitudinally outward to the end of the raceway alongside of the passage N, and has a small tube 3 in its outer end, to which is secured a tube a preferably flexible, which extends downwardly therefrom, its other end being secured to a short tube b which is inserted in a passage (Z in the side E of the lower exhaust-chamber box 3,which passage d extends therein and then turns and opens into a pneumatic bellows F secured in the exhaust-chamber C to its side opposite to the pneumatic bellows E and in such position as to bear, as it is opened, against the pneumatic bellows E to close it. Also just below the passage N in the lower raceway is a similar passage D which extends inward, then outward toward the end, having a tube 1 to which is secured a tube a preferably flexible, which extends upward, its other end being secured to a short tube b in a passage (Pin the side 15 0f the upper exhaust-chamber box 13 and communicating with a pneumatic bellows F secured in its exhaust-chamber to its side opposite to its pneumatic bellows E and in position to bear, as it is opened, against the pneumatic bellows E to close it. The object of this part of the invention is to insure the operation of the pneumatic bellows E in each system in restoring the equilibrium of the two systems by the travel in unison of the two music-sheets, if one or the other should be in. advance. If the marginal perforations '3 in the advanced music-sheet come over the passage I) in its raceway, air enters such passage and passes along through it and its connecting-tultms to the pneumatic bellows I in the opposite system, and opening the same it presses against its opposite pneumatic bellows E and assists in closing it. This insures the operation of the pneumatic bellows E in either system, to cause the disconnection of its clutches when the music-sheet in the system opposite thereto is in advance, and also insures such operation of the parts in case the marginal. perforation 13 should by any reason become enlarged, which enlargement would interfere with action of the pneumatic-bellows E.

This invention is applicable as well to control the travel synchronously of two or more sheets of flexible material for any purpose other than mechanical musical instruments, and therefore the invention is not to be limited to its application to mechanical musical instruments.

This invention is shown in the present instance to be used in connection with musical instruments operated by the exhaustion of air,

preferably by the main exhaust-bellows of the musical instruments, but it is not intended to limit the invention to its operation by the ex haustion of air, as it can be operated as well by air-pressure or force-bellows, in such case the parts being changed for such force-bellows in ways that are well known by makers of such musical instruments and needing no particular description herein.

The clutches S and Q in the present instance are frictional clutches, which are preferable for obvious reasons for the instruments to which this invention is specially to be applied, although as is obvious any suitable clutch can be used to communicate motion from one shaft to the other.

The operation of this invention as described for two or more perforated music-sheets operating two or more musical instruments is so quick and responsive in its action that even if any one of the perforated music-sheets does get in advance the perforated music-sheets practically travel together or as one, so that the musical composition played by the musical instruments applied thereto or connected therewith is played synchronously and accurately in reference to its time.

Having thus described our invention, what we claim is- 1. In a mechanical musical instrument, in combination, two or more perforated music sheets, mechanism for operating each music sheet independent of the other in connection with an independent an (1 separate organ,bank organ, or other musical instrument, and mech anism controlled by each music sheet to regulate and control the movement of the other music sheet or sheets, so that they all will travel together, to perform the music represented by each. sheet synchronously or together.

2. In a mechanical musical. instrument, in combination, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one to each music sheet, air ducts or passages in each raceway or tracker range, arranged to communicate with an independent or separate set or series of sounding devices for the sounding of the same, and mechanism controlled and caused to be operated by each perforated music sheet, to regulate an d control the travel of the other music sheet or sheets, for all the music sheets to travel together so that the music performed on the several musical instruments in connection therewith will be performed syl'ichronously or together.

3. In combination, two or more sheets of flexible material,raceways or rests over which said sheets are arranged to travel, one raceway to each sheet, and mechanism controlled and caused to be operated by each sheet, to regulate and control the travel of the other sheet or sheets, for said sheets to travel synchronously or together, over said raceways or rests.

4:. In combination, asheet of flexible material, a raceway or rest over which said sheet is arranged to travel, an air duct or passage in such raceway, a perforation in said sheet in line with said air duct, an air chamber, a pneumatic bellows in said air chamber in communication with said air d not or passage, a passage into said chamber from the outside, abellows outside of said chamber, a passage forming communication with said passage leading to said chamber and said bellows, a valve connected to said pneumatic bellows adapted to close and open said air chamber passage, a lever connected by one arm to said outside bellows, a rotating shaft adapted to move back and forth longitudinally in its bearings and to be moved in one direction by the other arm of said lever, a spring bearing on said shaft, a disk or clutch on the end of said shaft arranged and adapted to be engaged with another clutch or anysuitable operating device.

In combination, in a mechanical musical instrument, a perforated music sheet, a raceway or tracker range over which said perforated music sheet is arranged to travel, air ducts or passages in said raceway or tracker range arranged to communicate with soundin g devices for the sounding of the same, an air duct or passage in said raceway, a separate perforation in the music sheet for such air duct or passage, an air chamber, a pneumatic bellows in said air chamber in communication with said'air duct or passage, a passage into said air chamber from the outside, a bellows outside of said chamber, an air passage forming communication with said passage and said bellows outside of said air chamber, avalve connected to said pneumatic bellows adapted to close and open said air passage leading to the air chamber, a lever connected by one arm to said outside bellows, a rotating shaft adapted to engage with the other arm of said lever, and to move back and forth longitudinally in its bearings, a spring bearing on said shaft, a disk or clutch on the end of said shaft, another rotating shaft, a disk or clutch on the end of said latter shaft, adapted to engage with said first disk or clutch, a gear on said latter shaft, a roll on which said music sheet is adapted to be wound, and a gear on said roll arranged to engage with said shaft gear.

6. In a mechai'iicalmusical instrument, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one raceway to each music sheet, air ducts or passages in each raceway to each music sheet arranged to communicate with. sounding devices for the sounding of the same by the passage of air through the perforations in said sheets and air ducts, in combination with two sets or systems for the controlling by each perforated music sheet in its travel over its respective raceway of the other perforated music sheet or sheets for the purposes described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct, a passage communicating with said air chamber from the outside, means for opening and closing said air passage leading to the air chamber by the movements of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows outside of said air chamber a lever connected by one arm to said outside bellows, a rotating shaft arranged to move back and forth longitudinally in its bearings, and to be acted upon in one of its movements by said lever, a spring bearing on said shaft, a gear secured to said shaft, another rotating shaft adapted to engage and disengage with said former shaft, a roll on which said music sheet is adapted to be wound, and a gear on said roll arranged to engage with said shaft gear, and a pivoted lever connected by its ends respectively to the outside of said bellows in each system, connectingv the systems together for the purpose described.

7. Ina mechanical musical instrument, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one race way to each music sheet, air ducts or passages in each raceway or tracker range, arranged to communicate with sounding devices for the sounding of the same by the passage of air through the perforations in said sheets and air ducts, in combination with two or more sets or systems for the controlling by each perforated music sheet in its travel over its respective raceway of the other perforated music sheet or sheets for the purposes described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct, a passage communicating with said air chamber from the outside, a valve connected to said pneumatic bellows adapted to-open and close said air passage leading to the air chamber by the movements of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows outside of said air chamber, alever connected by one arm to said outside bellows, a rotating shaft arranged to move back and forth longitudinally in its bearings and to be acted upon in one of its movements by said lever, a spring bearing on said shaft, a gear secured to said shaft, a disk or clutch on the end of said shaft, another rotating shaft, a disk or clutch on the end of said latter shaft adapted to engage with the other disk or clutch, a gear on said latter shaft, a roll on which said music sheet is adapted to be wound, and a gear ITS on said roll arranged to engage with said shaft gear; and a pivoted lever connected by its ends respectively to the outside of said bellows in each system connecting the two or more systems together for the purpose described.

8. In a mechanical musical instrument, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one raceway to each music sheet, air ducts or passages in each raceway or tracker range arranged to communicate with sounding devices for the sounding of the same by the passage of air through the perforations in said sheets and air ducts, in combination with two or more sets or systems for the controlling by each perforated music sheet in its travel over its respective raceway of the other perforated music sheet or sheets for the purposes described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct, a passage communicating with said air chamber from the outside, means for opening and closing said air passage leading to the air chamber by the movements of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows outside of said air chamber, a lever connected by one arm to said outside bellows, a rotating shaft arranged to move back and forth longitudinally in its bearings and to be acted upon in one of its movements by said lever, a spring bearing on said shaft, a gear secured to said shaft, another rotating shaft adapted to engage and disengage with said former shaft, a roll on which said music sheet is adapted to be Wound, and a gear on said roll arranged to engage with said shaft gear, a second air duct in said raceway in the line, in which the music sheet travels with the former air duct, and a tube or air conductor forming communication with said second air duct and the outside bellows in the other set or system; and a pivoted lever connected by its ends respectively to the outside of said bellows in each system connecting the two or more systems together for the purpose described,

9. In a mechanicalmusicalinstrument, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one raceway to each music sheet, air ducts or passages in each raceway or tracker range arranged to communicate with sounding devices for the sounding of the same by the passage of air through the perforations in said sheets and air ducts, in combination with two sets or systems for the controlling by each perforated music sheet in its travel over its respective raceway, of the other perforated music sheet or sheets for the purpose described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct, a passage communicating with said air chamber from the outside, a valve connected to said pn eumatic bellows adapted to open and close said air passage leading to the air chamber by the movements of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows outside of said air chamber, a lever connected by one arm to said outside bellows, a rotating shaft arranged to move back and forth longitudinally in its bearings, and to be acted upon in one of its movements by said lever, a spring bearing on said shaft, a gear secured to said shaft, a disk or clutch on the end of said shaft, another rotating shaft, a disk or clutch 011 the end of said latter shaft, adapted to engage with the other disk or clutch, a gear on said latter shaft, a roll on which said music sheet is adapted to be wound, and a gear on said roll arranged to engage with said shaft gear, a second air duct in said raceway in the line in which the music sheet travels with the former air duct, and a tube or air conductor forming communication with said second air duct and the outside bellows in the other set or system, and a pivoted lever connected by its ends respectively to the outside of said bellows in each system. connecting the systems together for the purpose described.

10. In combination, a sheet of flexible material, a raceway or rest over which said sheet is arranged to travel, an air duct or passage in such raceway, a perforation in said sheet in line with said air duct, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct or passage, a passage into said chamber from the outside, a bellows outside of said chamber, a passage forming communication with said passage leading to said chamber and said bellows, a valve connected to said pneumatic bellows adapted to close and open said air chamber passage, a rotating shaft adapted to move back and forth longitudinally in its bearings and connected to said bellows to move said shaft in one direction, a spring bearing on said shaft, and another rotating shaft, said shafts being arranged to engage and disengage with each other.

11. In combination, a sheet of flexible material, a raceway or rest over which said sheet is arranged to travel, an air duct or passage in such raceway, a perforation in said sheet in line with said air duct, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct or passage, a passage intosaid chamber from the outside, a bellows outside of said chamber, a passage forming communication with said passage leading to said chamber and said bellows, a

valve connected to said pneumatic bellows adapted to close and open said air chamber passage,a rotating shaft adapted to move back and forth longitudinally in its bearings and connected to said bellows to move said shaft in one direction, a spring bearing on said shaft, a disk or clutch on the end of said shaft arranged and adapted to be engaged with another clutch or any suitable operating de vice.

12. In combination,in a mechanical musical instrument a perforated music sheet, a raceway or tracker range over which said perforated music sheet is arranged to travel, air ducts or passages in said raceway or tracker range arranged to communicate with sounding devices for the sounding of the same, an air duct or passage in said raceway, a separate perforation in the music sheet for such air duct or passage, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct or passage, a passage into said air chamber from the outside, a bellows outside of said chamber, an air passage forming communication with said passage and said bellows outside of said air chamber,a valve connected to said pneumatic bellows adapted to close and open said air passage leading to the air chamber, a rotating shaft arranged to move back and forth longitudinally in its bearings and connected to said bellows to move said shaft in one direction, a spring bearing on said shaft, a disk or clutch on the end of said shaft, another rotatin shaft, a disk or clutch on the end of said latter shaft, adapted to engage with said first disk or clutch, a gear on said latter shaft, a roll on which a music sheet is adapted to be wound, and a gear on said roll arranged to engage with said shaft gear.

13. In a mechanical musical instrument, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one raceway to each music sheet, air ducts or passages in each raceway to each music sheet, arranged to communicate with sounding de vices for the sounding of the same by the pas sage of air through the perforations in said sheets and air ducts, in combination with two sets or systems for the controlling by each perforated music sheet in its travel over its respective raceway of the other perforated music sheet or sheets for the purposes described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said air 'duct, a passage communicating with said air chamber from the outside, means for opening and closing said air passage leading to the air chamber by the movements of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows out-side of said air chamber, a rotating shaft together for the purpose described.

14:. In a mechanical musical instrument, two or more perforated music sheets, raceways or tracker ranges over which said perforated music sheets are arranged to travel, one raceway to each music sheet, air ducts or passages in each raceway to each music sheet arranged to communicate with sounding devices for the sounding of the same by the passage of air through the perforations in said sheets and air ducts, in combination with two sets or systems for the controlling by each perforated music sheet in its travel over its respective raceway of the other perforated music sheet or sheets for the purposes described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said air duct, a passage communicating with said air chamber from the outside, means for opening and closing said air passage leading to the air chamber by the 1n ovements of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows outside of said air chamber, a lever connected by one arm to said outside bellows, a rotating shaft arranged to move back and forth longitudinally in its bearings, and to be acted upon in. one of its movements by said lever, a spring bearing on said shaft, a gear secured to said shaft, another rotating shaft, adapted to engage and disengage with said former shaft, a roll on which a music sheet is adapted to be wound, and mechanism connecting the outside bellows of the systems together for the purpose described.

15. In a mechanical musical instrument, two or more perforated music sheets, raceways or tracker ranges over which the perforated music sheets are arranged to travel, one raceway to each music sheet, air ducts or passages in each raceway or tracker range, arranged to communicate with sounding devices for the sounding of the same by the passage of air through the perforations in said sheets and air ducts, in combination with two sets or systems for the controlling by each perforated music sheet in its travel-over its respective raceway of the other perforated music sheet or sheets for the purpose described, each set or system consisting of the following instrumentalities: a separate perforation in the music sheet, an air duct or passage in its raceway for such perforation, an air chamber, a pneumatic bellows in said air chamber in communication with said duct, a passage communicating with said air chamber from the outside, a valve connected to said pneumatic bellows adapted to open and close said air passage leading to the air chamber by the move- -ments of the pneumatic bellows, an air passage communicating with said latter air passage and a bellows outside of said air chamber, a rotating shaft arranged to move back and forth longitudinally in its bearings connected to said bellows to move said shaft in one direction, a spring bearing on said shaft, a gear secured to said shaft, a disk or clutch on the end of said shaft, another rotating shaft said shafts being arranged to engage and disengage with each other, a roll on which said.

music sheet is adapted to be wound, and connected to said latter shaft for operation