US614886A

US614886A - Musical instrument

Info

Publication number: US614886A
Authority: US
Publication date: 1898-11-29
Anticipated expiration: 1915-11-29

Description

No.'6l4,886. Patented Nov. 29. I898.

R. W. PAIN.

MUSICAL INSTRUMENT.

(Application filed Oct. 15, 1897.)

(No Model.) 2 Sheets-Sheet l.

- I I i" WITNESSES: INVENTOR 2 72oz? Mfaz'w m ///.s' ATTORNEY m: Nomns PETERS co. wnoro umou wxsummou. n. c.

No. 6l4,886. Patented'N'ov. 29, I898.

12. W. PAIN. MUSICAL INSTRUMENT.

(Application filed Oct. 15, 1897.)

2 Sheats-S heet 2.

(No Model.)

WITNESSES: I

UNITED STATES PATENT OFFICE.

ROBERT IV. PAIN, OF NEI/V YORK, N. Y., ASSIGNOR TO THE AEOLIAN COMPANY, OF CONNECTICUT. I

M USICAL INSTRUIVI ENT.

SPECIFICATION forming part of Letters Patent No. 614,886, dated November 29, 1898.

Application filed October 15, 1897. Serial No. 655,305. (No od l.)

To all whom it may concern:

Be it known that I, ROBERT W. PAIN, of New York, in the county and State of New York, have invented a certain new and useful Improvement in Musical Instruments, of which the following is a specification.

I will describe my invention in detail and then point out the novel features in the claims.

In the accompanying drawings, Figure 1 is a sectional elevation of portions of an organ embodying my improvement. Fig. 2 is a sectional elevation of the same upon a larger scale and in a plane at right angles to that of Fig. 1, as indicated by the dotted line 2 2, Fig. 1, the View being taken as indicated by the arrows at the ends of said dotted line. Fig. 3 is a sectional elevation upon the same scale as Fig. 2, the plane of the section being indicated by the dotted line 3 3, Fig. 1, and

the view being taken as indicated by the arrows at the ends of said dottedline.

Similar letters of reference designate corresponding parts in all figures.

I will premise that my invention has been illustrated in connection with parts intended for use with a suction-bellows and with reeds for the sound-producing devices and a traveling music-sheet for controlling the operation of the parts.

A designates reed-cells opening at one end to the atmosphere and having near the other end an opening into chambers B. In these cells are reeds C of ordinary construction. The chambers B are controlled by valves D as to their communication with an exhaust-chamber E. Any suitable system of exhaust-bellows and equalizers may be combined with the chamber E.. As here shown, the chamber E is provided with an opening 6, whereby it may be connected with such devices.

The valves D are shown as connected to a bar F, and the latter is pivotally connected with radius-bars F these radius-bars bein pivotally connected by pins or screws f to any suitable support in the exhaust-chamber E-as, for example, to an upright bar F. Owing to this method of supporting the bar F, any upward movement will cause a movement of the valves D away from the ends of the chambers B, and any downward movement will cause a movement of the valves in the reverse direction. As theradius-bars are of such length that they will not descend to a horizontal position when the valves close the chambers, a downward movement of the bar F will cause the radius-bars to operate with a toggle-like action to effect a forcible closure of the valves.

Preferably the valves will not be connected rigidly with the bar F, but flexibly by some suitable meansas, for instance, by a piece f of flexible material glued to the opposite faces of the bar and the valves. Soft leather or analogous material will be found serviceable for this purpose. The direction in which the power is applied through the bar F to move the valves D toward and from their seats also adds to the efficiency with which the valves may be operated.

The bar F is moved up and down by means of pneumatic motors G G which, as here shown, are made in the form of small bellows and have their movable boards connected with a rod G, that extends to the bar F. As here shown, the rod G is screw-threaded adjacent the movable boards of the motors G G and fitted with pieces of leather g, that engage the screw-threads, so as to have the function of nuts. A pair of these nuts is arranged on opposite sides of a toe orprojection of the movable boards of the motors G G At the upper end the rod G is screw-threaded and provided with a similar pair of nuts for engaging it with a yoke g, that is pivotally c011- nected to the bar F, preferably about mid way between its ends, by means of pins or screws g A pivotal connection intermediate the bar F and the motors G G is desirable, because of the movement of these parts in arcs of a circle.

A chamber II is arranged intermediate the motors G G and is in communication with the exhausting devices. A simple way of providing for this communication is to connect such chamber by means of a pipe h with the exhaust-chamber E.

It will of course have been understood that the exhaust-chamber E may be common to a number of sets of reeds, and it is equally true that the chamber I-I may be common to a number of motors G 13. Of course there 7' but extends down to a motor K.

will for every set of reeds be a corresponding set of valves D, bar F, motors G G", and eonnecting parts.

For each motor G there will be a passage I, suitable for establishing communication between the interior of such motor and the chamber II. There will be a similar passage I intermediate the chamber H and each motor G As here shown, a board 7 is arranged upon one side of the chamber H, and a board i is arranged upon the other side, and the passages I l are formed by suitably channeling such boards.

In the chamber II for every pair of motors G G and channels I 1 there will be a pair of valves J J the valve J being for the purpose of controlling the communication of the chamber II with the passage 1 and motor G and the valve J for controlling communication between the motor G and channel I with the chamber 11. It will be observed that the valves J J 2 are so spaced that when one is closed the other will be open. The channel I has an opening '5, by which it may communicate with the atmosphere, and the channel l has a similar opening '6" for the same purpose. Adjacent to the openings 1' i are valves J J. All the valves J J J J" must operate in unison, because when the valve J opens communication between the chamber II and the channel I belonging to the motor G it is necessary that the valve J 3 belonging to the same channel and motor shall be closed, and vice versa. These statements apply equally to the valves J J, which cooperate with the channel I belonging to the motor G A convenient way of securing the proper relative operation of the valves is to mount them all upon one rod J. These valves may be made of disks of leather engaging with screwthreads on the rod J. The rod J may be secured in bars j 7' attached to the boards 2" 2' and recessed suitably to accommodate the valves J 3 J As here shown, the rod J does not merely pass through holes in the bars j This motor K consists of a chamber 7.1, across which is arranged a flexible diaphragm From this diaphragm a rod k extends upwardly from the chamber 71:. Outside the chamber it is shown as provided with a disk or head If. Preferably the rod M will be screwthreaded for engagement with the disk or head 70 and the latter will be made of leather to adjustably engage such screw-thread.

In the present example of my invention the rod J is screw-threaded at its lower end and provided with a disk or knob j", of leather, which contacts with the disk or head 7& of the motor K. It must be understood that there will be a motor K for each pair of motors G G and consequently for each set of valves D and reeds.

The motor K has a by-pass or equalizingpassage 70, communicating with the chamber 7|), upon opposite sides of the diaphragm 75. Its upper portion communicates by means of a pipe 70 with the chamber II. Preferably this by-pass may be adjusted as to capacity by means of a screw kiextendin g transversely into it. The lower part of the chamber 7; communicates by means of a pipe or passagel with one of the ducts m of a tracker-board M, over which a perforated music-sheet travels. According to whether an imperforate or a perforate portion of the music-sheet happens to be passing over any particular duct m of the tracker-board M the diaphragm 7V" of the mo tor K will occupy one or another of its two positions, and consequently the valves J J 2 J 3 J will be differently positioned to cause a different operation of the motors G G and valves D. In Fig. 1 the various parts are illustrated in the position which they will occupy while an imperforate portion of the music-sheet is traveling over the ducts m of the tracker-board M. At such time communication between the lower part of the chamber 7c of the motor K and the atmosphere will be cut off or stopped. The by-pass 70 will permit the diaphragm 7a to descend by its gravity and that of its appurtenant parts.

The incidental shifting of the valves J J 2 J 3 J will establish communication, as shown in Fig. 1, between the channel I of the motor G and the atmosphere, the communication of such motor with the chamber II being simultaneously cut off. Thus this motor will be put in condition to be expanded as the internal and external pressures balance each other. The motor G will pull down the rod G and cause the expansion of the motor G because the shifting of its valves J J established communication between it and the chamber 11 and cut off its communication with the atmosphere, leaving, of course, the full force of atmospheric pressure upon the outside of the movable board as against the reduced pressure of the exhaust-chamber E upon the inside. Thus it will be seen that the valves D will be forced against the ends of the chambers B with the full force of the motor G, and also with that additional elliciency due to the application of the force of the motors through the radius-bars F.

lVhenever a perforation of the music-sheet passes over the duct m of the tracker-board M, air will flow through said duct to the passage l and thence into the chamber 7; of the motor K beneath the diaphragm 70. As the upper portion of this chamber is in constant communication with the chamber II, and consequently with the exhaust-chamber E, the diaphragm 70 will be moved upwardly, and will thus serve to shift the valves J J 2 J 3 J into their reversed positions. This change in the position of these valves will cut oil": communication between the interior of the motor G and the atmosphere and establish a communication between it and the chamber H. Simultaneously the communication of the motor G with the chamber II will be cut off and it will be put into communication with the atmosphere.

An upward movement ICC of the rod G will result, and that will cause the valves D to be opened.

My reference to parts as arranged one above another or as moving in any particular directions is not material, because the combination of parts is such that they may be operated in any desired positions.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a musical instrument, the combination with an exhaust-chamber, a sound-producing device connected therewith, a valve for controlling the soundproducing device, a pneumatic motor positively operated in two directions and having a connection with said valve for positively controlling its movement, means for operating said motor and a perforated sheet for controlling said means, substantially as described.

2. In a musical instrument, the combination with an exhaust-chamber, a sound-producing device connected therewith, a valve for controlling said device, said valve being located in said exhaust-chamber and hinged to one end of a pivoted and normally-inclined lever, a pneumatic motor outside of the exhaust-chamber positively acting in two directions, and a rod connection between said lever carrying the valve and motor, said rod having a hinge connection with the lever whereby when the motor is operated to close the valve a firm seating can be secured for the valve, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT W. PAIN.

\Vitnesses:

M. WILSON, GEORGE H. RAYMOND.