US951276A - Piano. - Google Patents

Piano. Download PDF

Info

Publication number
US951276A
US951276A US54046710A US1910540467A US951276A US 951276 A US951276 A US 951276A US 54046710 A US54046710 A US 54046710A US 1910540467 A US1910540467 A US 1910540467A US 951276 A US951276 A US 951276A
Authority
US
United States
Prior art keywords
bellows
hammers
valve
rest rail
piano
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US54046710A
Inventor
Henry S Hornbeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEORGE M NEWCOMER
Original Assignee
GEORGE M NEWCOMER
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEORGE M NEWCOMER filed Critical GEORGE M NEWCOMER
Priority to US54046710A priority Critical patent/US951276A/en
Application granted granted Critical
Publication of US951276A publication Critical patent/US951276A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10FAUTOMATIC MUSICAL INSTRUMENTS
    • G10F1/00Automatic musical instruments
    • G10F1/02Pianofortes with keyboard

Description

H. S. HORNBEGK.
PIANO.
APPLICATION FILED DEC. 24, 190B. RENEWED JAN. 27, 1910. 95 1 ,276, Patented Mar. 8,- 1910.
5 SHEETSSHEET 1.
s r q/vikmmoeo v R Qyvuamtoz H. s. HORNBEGK.
PIANO.
APPLIOATIDN FILED DBO. 24, 1908. RENEWED JAN. 27, 1910.
Patented Mar. 8
, 5 SHEBTB+SHEET 3.
A qmiimgpoef H. S. HORNBEGK.
PIANO.
APPLICATION FILED D120. 24, 1908. RENEWED JAN. 27, 1910.
Patented Mar. 8, 1910.
5 SHEETS-SHEET 4.
Wane/noes Wig H. S. HORNBEGK.
PIANO. APPLIGATION FILED D20. 24, 19 08. RENEWED JAN. 27, 1910.
Patented Mar. 8, 1910.
5 SHEETS-SHEET 5 wit/newer Jersey,
UNITED srarps PATENT OFFICE.
HENRY S. HORNBECK, OF ELIZABETH, NEV/ JERSEY, ASSIGNOR OF ONiii-HALF TO GEORGE M. NEWCOMER, OF NEW YORK, N. Y.
PIANO.
Application filea December 24, 1908, Serial No. 469,082.
To all whom it may concern:
, Be it known that I, HENRY S. HonNnEcn, a citizen. of the United States, residing in the city of Elizabeth, in the State of New have invented certain new and useful Improvementsin Pianos, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.
It is the object of this invention to provide means whereby, in the operation of auto-..
matic pianos, it shall be possible to give prominence to any note or succession of notes other notes, sounded simultaneously, are modulated or softened in tone. Tones softer than the normal are usually produced by lessening the throw of the hammers, the hammer rest rail being moved bodily toward the strings ofthe instrument so that the throw of all of the hammers shall be diminished. It has also been proposed to provide supplemental rest rails, movable independently of each other and-by inclependent operating means to diminish the throw of the hammers of the upper portion of the scale or of the lower portion of the scale. This permits the tone of notes in one portion of the scale to be modulated while all notes in the other portion of the scale are struck with normal force. This, however, is insufficient for the artistic rendition of many musical compositions in which the successive notes which carry the theme or air or melody should receive prominence over notes which though sounded simultaneously may be both higher and lower in the scale than the corresponding note or notes of the theme. It. is, therefore, the special purpose in view in the present invention to enable such superior artistic results to be producedv and any note or any succession of notes anywhere in the scale, to receive prominence over notes sounded simultaneously in any other part of'the scale. To this end the hammer rest rail is divided in short sections and the several sections are so controlled from a single operat ing device as to permit the performer to retire instantly any of such sections while all other sections are in position, to shorten the throw of the hammers, so that the strings corresponding to such sectionshall be struck by their hammers with normal force or with such force as to give the corresptmding notes the desired prominence.
Specification of Letters Patent.
instrument whileparts being mal position by dotted lines.
Patented Mai-.6, 1910. Renewed January 27, 1910. Serial No. 540.467.
The invention will he more fully explained hereinafter with reference to the accompanying drawings in which it is illustrated and in which- Figure 1 is a view in front elevation of so much of an automatic or equipped with the improved devicesas in necessary to enable the invention to be understood, the front casing being removed.
F 2 and 3 are respectively a detail view in end elevation and a' detail view n1 rear elevation of the deviceswith\vhiclfthc improvement is particularly concerned, the represented in the position whiclrthey occupy when the throw of all of the hammers is diminished. Figs. l and 5 are views respectively similar to Figs. 2 and 3 but illustrating the positions of the parts when a single section of the hammer rest rail is retired while all other sections are thrown forward to diminish the throw of the hammers. Figs. 6 and 7 are also views similar respectively to Figs. 2 and 3 but showing the parts in the position which they occupy when all sections of the hammer rest rail are retired to permit all of the hammers to have their full normal thrc w. Fig. 8 is a detail view of some of the parts shown in Figs. 2 and '3 as seen from the top. Fig. 9
is a detail view in section on the plane indiscale, the normal position of the hammer rest rail being shown by full lines and its abnor- Fig. 10 is a detail view in elevation, seen from the right in Fig. 1, of a portion of the valve mechanism which controls the sections of the hammer rest rail. Fig. 11 is a view of the same in elevation as seen from the right in F ig. '10. Fig. 12 is anend view of the same with the guide and brackets removed. Figs. 13, 14 and 15 are detall views in side,
front and end elevation respectively of the slide valve and the mechanism for actuating the indicator. Figs. 16 and 17 are detail views of the outer shell of the indicator. Figs. 18,19 and 20 are detail views of the indicator. F 21 is a partial view, similar to the corresponding portion of Fig. l and illustrating a slightly different embodiment of thc'invention. Fi is a partial view of some of the parts shown in Fig. 2i, as seen from the top. ig. 23 is a detail view of one of the indicating or signaling devices shown in position in Fig. 21. Fi.
player piano upon pivots are detail views showing the controlling lever and the devices operated therewith.
In the embodiment of the invention illustrated in the drawings the frame a of the piano supports in usual manner the key board 7), the tracker box 0, bellows mechanism (Z, wind-box d and hammers e, which are operated in the usual manner either from the finger keys or from the tracker box mechanism.
The hammer rest rail against which the hammers rest when they fall back from the strings comprises a main rail or support f and a. series of independently movable sectional rails g, each of which'is independently operated by means mounted on the main rail and is preferably carried by the movable member of a corresponding sectional bellows g and is adapted to cooperate with a relatively small number of hammers e. The main rail the tubes f which lead to the several bellows and the flexible connecting tubes f by which the tubes f are connected to the wind box as hereinafter described. The main rail 7 is movably supported so that all of the sectional rails 9 may be advanced toward or retired from -the hammers e to vary the throw thereof, the main rail being shown as hung f and having an arm 7 connected by a rod with the movable member of a bellows f, which, in the construction shown, is the operating means for the main rail. The latter, being normally expanded, as shown in Figs. 6 and 7, to hold the rest rail in normal retired position away from the strings, is arranged to be collapsed, at the will of the performer, to throw the rest rail toward the strings, as shown in Figs. 2 and t and by dotted lines in Fig. 9, and for this purpose is connected with the usual double pneumatic or controlling pneumatic the operation of which is in turn controlled, at the will of the operator, preferably through the valve mechanism described.
The several flexible connections f lead from the tubes f to a valve chest 71. in the ports 71. of which they terminate. Independent of the series of ports h in the valve chest 71, is port 7&2 which is connected by a tube h with the controlling pneumatic 7, which is constructed and operates in the usual manner for the purpose of establishing connection between the bellows f and the wind box through the tube fl. Cooperating with the valve chest 71 is a slide valve 7r: which adapted to control, in the first place, the admission of atmospheric pressure to the controlling pneumatic 7" through the port 71. and tube It, to collapse bellows f and, in the second place, to control the cminection of the several rest rail bellows g with the wind box Z so that one or another or more of such bellows may he f also supports hereinafter l l l l l l l l 1 collapsed at the will of the performer. The slide valve has a projection which, in the normal position of the parts, covers the ort 72, and thereforeshuts off atmospheric pressure from the pneumatic f and permits the bellows f to remain extended so as to hold the rest rail in normal, retired position away from the strings. The first movement of the slide valve is from its normal' position uncovers the port 7L2 and, through the pneumatic 7", causes the bellows f to be collapsed and all sections of the hammer rest rail to be thrown into the abnormal or pianissimo osition. The slide valve 70 has in its worliing surface an L- shaped slot 76 the short arm of which is adapted to register with one or more (as shown clearly in Fig. 10) of the valve ports h in thevalve chest h, while the long arm thereof is always in registration with a port 7L which 'is connected by a pipe it either directly or indirectly with the wind box cl, so that some one or more of the sectional rest rail bellows 9 shall be collapsed and the corresponding section of the sectional rest rail 9 be drawn away from the strings according to the osition which the slide valve 70 occupies with respect to the series of ports-72,.
The movement of the slide valve 7; is controlled and effected by the performer through any suitable means. As shown in the drawings, there is suitably mounted in convenient position near the key-board a controlling lever Z which, in the arrangement shown, is connected by a rod Z with one arm of a bell crank lever Z the other arm of which is connected by a rod Z with the slide valve 71:. Shifting of the lever in one direction or the other effects the desired movement of the slide valve.
In order that the performer may be guided by the evidence of his eyes in the movement of the slide valve and consequently in the collapsing of the bellows g, it is desirable that an indicator of some sort should be provided. A suitable indicator is shown in Figs. 1 and 16-20 of the drawings, a portion of the controlling mechanism being also shown .in Figs. 2, t, (3, 13 and 14. This indicator comprises a sleeve m, suitably mounted for observation by the performer, preferably in the front of the tracker box. It is provided with a longitudinal series of apertures m. \Vithin the sleeve is mounted a rotatable rod or shaft or which has a longitudinal series of black dots n. or, it might be, a black line, corresponding to the series of openings m in the sleeve m. The rod n has also a spirally stepped series of black dots n Therefore, when the rod 7/, is in its normal posit ion within the sleeve m all of the holes m. will. show black, while if the rod be turned from its normal position one or a few of the made to indicate which of the sectional bel-' lows g" are collapsed, it is connected with the devices for controlling the collapsing of such bellows. Such connection may be accomplished in any convenient manner. As shown in the figures of the drawings referred to, the rod n is secured to a shaft 0 which carries a pinion 0 in mesh with a rack on the slide valve is. The extent of rotation of the rod n will,-theref are, depend upon the extent of movement of the slide valve 70 and therefore upon the location of the sectional bellows g which is collapsed.
In the embodiment of the invention illustrated in Figs. 21-27 provision is made not only for indicating the position of the sec tional bellows which may be collapsed, but for indicating whether the devices are in opera ti ve condition for solo playing,or fol-piano or for pianissilno playing throughout the scale, and also for permitting the solo playing to be instantly discontinued at any time without requiring the controlling lever to be moved all the way back to itsinitial or normal position. y
The general features of construction of the piano itself and of the solo devices, in eluding the sectional hammer rest rail and the operating bellows, are arranged substantially as already described with respect to Fig; 1. The slide valve k is in this'instance shown as arranged in a horizontal position, together, with the valve chest h which is connected, as before, withthe sectional bellows. The short arm of the controlling lever Z is connected by a rod l with an arm Z on a vertical shaft Z Another arm Z on the shaft is connected by a rod 1 with the slide valve 70 and still another arm Z is connected byv a rod Z with a lever 0 the free end ofwhich is connected by a link 0 with a sliding indicator-rod n". The latteris bent or stepped, as atn, to show upon a series of spots m on a bar m the position of the slide valve and therefore the location ofthe sectional bellows which may be collapsed. The pneumatic f controls the connection of the main rest rail bellows f, throughthe tube 7, with thewind box d as before. The main rest rail bellows f, if placed so that itmay be seen by the performer, may be utilized, as in the construction shown in Fig. 1., to show that the parts are in the position for playing piano, that is, with the rest rail. thrown toward the strings to reduce the throw of the hannners. v In Fig. 21, however, there is shown a separate small signaling bellows P, the connection of which with the wind box is controlled As shown the small by the pneumatic benmvg 9 s directly connected by ,a pipe f with the main rest rail bellows f so that the bellows is collapsed whenever the bellows f is collapsed. The bellows f carries an indicator marked piano which is normally concealed but is exhibited when the bellows is collapsed.
In the construction shown in F 1 the valve chest It is always under suction, being permanently connected with. the'wind box (1 through --the pneumatic and'pipe [1.5, so that, whenever the slide valve Zrtherein is moved from its normal position, some one at least of the sectional bellows is also connected with the wind boxand is collapsed. In the construction shown in Fig. 21, however, the tube if is so connected to the wind box d, through an independent pneumatic f, as to establish or not to establish communication between the channel 70 of the slide valveln and'the wind box, according to the operation of the pneumatic f at the will of the performer," who is therefore enabled to cut the solo devices out of operation or throw them into operation regardless of the positionof the slide valve and without quiring the controlling lever Z to be moved back to its normal position. matics f and f might be controlled by the usual separate controlling devices, but in order to avoid a multiplicity of controlling devices to receive the attention of the performer, provision is made whereby both of the pneumatics and f are controlled by movement of the controlling lever Z which, as already described, controls the position of the slide valve and determines which of the sectional rest rail bellows g shall, be collapsed. Such means'are shown in detail in Figs. 2227, wherein it will be seen that the shaft p upon which the controlling lever Z is mounted, is not only capable of a movement of rotation upon its own axis but also capable of a movement downward (or itmight be in any other direction trzinsverse to its axis) and of movement in a longilu dinal direction, either toward or from the performer. 7
As will-be seen by reference to Figs-Qt and 25', the-shaft p is capable of movement downwardly, against the upward pressure of a supporting spring 1'), in an open bearing 72 formed in a block 72 A tube 77* es,- tablishes connection between the pneumatic .7" and a port 71 in the block 7)", which port is closed by the shaft y) when it is in its upper or normal position. Pressure downward upon the lever Z moves the shaft paway from the port and permits atinosplu-ric pres-- sure to reach the pneumatic through the tube g) and, through the connection of the pneumatic, establishes connection of the bel- The two pneu lows f with the wind box d and causes the collapsing of the bellows to throw the en! l1! hammer rest rail toward the strings. he
shaft 7), being also movablelongitmlinally in its bearing, has acollar p, as shown in Figs. 26 and 27, which bears against a flat spring valve p". The latter normally closes a port 7, in a block 79 which port is connected through a tu e 72 with-the pneumatic f, so that when the lever Z is pulled toward the performer the port 8 is opened, atmospheric pressure is admitted to the pneumatic f and communication from the tube 71, to the wind box cl is at once established. Whenever the lever Z is permitted to move backto its normal position, away from the performer, the port 7" is at once closed and the pneumatic f operates in the usual manner to cut off communicationbetween the tube 71,5 and the wind box d. Thisconnection may, therefore, be established or cut Off 'at will regardless of the position of oscillationfof the controlling lever Z about its axis and therefore regardless of the position of the slide Valve is.
The slide valve 70 is provided in its working face before with a long L-shaped channel le the long arm of which always overlies the port 71. with which the tube h is connected. The short arm of the channel k is adapted to establish communication with at least some one or another ofthe ports h of the valve chest h, so as to establish connection between the sectional rest rail bellows and the wind box. For the pur.- pose of signaling to the performer that the parts are in operative condition for solo playing there is also formed in the valve chest and adapted to be covered always by the long arm of the channel k of the slide valve is a port it which is connected through a tube k with a signaling or indicating bellows h located in convenient position for observation by the performer, as shown in Fig. 21. The bellows h carries amindicator marked piano which is normally concealed but is exhibited when the bellows is collapsed.
The operation of the solo device will now be readily understood, both as to the embodiment of the invention shown in Fig.1 and as to the embodiment of the invention shown in Fig. 21. Referring first to the embodiment shown in Fig. 1, it will be understood that the lever Z is grasped by the performer and is moved slightly to the right, thereby causing the slide valve is to uncover the port if. This, through the pneumatic 7, causes the bellows f to collapse and the entire hammer rest rail to be moved toward the strings into position to limit the bacle ward throw of the hammers. In this posi tion of the parts the playing of the instrumcnt will be piano throughout the range of the instrument. Should it then be desired to produce the effect of a solo and accompaniment the lever l is moved "further to the right to effect connection between the vvind box and that one of the sectional bellows g l l l l l which comes within the range of the ham mers which shouldhave their full throw, the movement of the lever and therefore of the slide valve being continued in one direction or the other with the shifting of the solo notes up or down the scale. In this embodiment of the invention the hammer rest rail can be restored to its normal position only by moving the lever back to its left hand position so as to cover up again the port h and permit the bellows f to expand.
In the operation of the embodiment of the invention shown in Fig. 21 the mere oscillation of the controlling lever Z upon 1ts axis produces no eflect upon the playing of the instrument. A pressure downward upon the lever, however, causes, through the pneumatic 7, the collapsing of the-bellows f and the throwing of the hammer rest rail. into position for playing piano, at thesame time'operating the piano signal f. A nulling of the lever toward the performer then. through the pneumatic f, establishes connection between the wind box and the channel in the slide valve, at the same time operating the solo signal 72., and therefore movement of oscillation of the lever Z upon its axis establishes connection between such channel and some one or another of the sectional rest rail bellows so that such bellows is collapsed and the corresponding section of the rest rail thrown away from the strings gives the corresponding hammer or hammers full throw.
It will be understood that various other changes in details of construction and arrangement may be made without departing from the spirit of the invemion which is notlimited to the construction shown and described herein.
I claim as my invention:-
1. In a piano, the combination with the hammers, of a main rest rail, a sectional rest rail, means for moving; the main rest rail toward or from the hammers to limit the throw thereof and independent means mounted upon the main rest rail and moving therewith for moving one or another of the several sections toward or from the hammers.
2. In a piano, the combination with the hammers, of amain rest rail, means for moving the same toward or from the hammers, a series of bellows carried by the main rest rail, a sectional rest rail carried as to its several sections; by the several bellows and means to control the expanding and collapsing of said bellows severally.
3. In a piano, tie combination with the hammers, of a main rest rail, a sectional res iail, means for moving the mam rest rail toward or from the hammers to limit the throw thereof, independent means mounted upon the main rest rail and moving there with for moving one or anol her of the several sections toward or from the hammers and an indicator operatively connectedilwith the last named means to show which of the hammers, of a main. rest rail, means for moving the same toward or fromthe' hammers, a series of bellows carried byth'e'jrest rail, a sectional rest frail carried asto' its several sections by the several bellows, means to control the expandmg and collapsing of said bellows severally and an indicatoroperatively connected with such'meansto show which sections of the sectional rest rail are moved toward or from the hammers.
5. In a piano, the combinationwith the hammers, of a series of bellows, a sectionalrest rail carried as to its several sections by the several bellows, a valve chest having separate connections to the several bellows, a wind box'connectedwith the valve chest,
valve to' control connection from the valve chest to the several bellows and means to operate the valve.
6. In a piano, the combination with the hammers, of a series ofbellows, a sectional rest rail carried as to itsseveralsectionsby the several bellows, a valve chest having sep" arate connections to the several, bellows a wind box connected with the valvechest, a slide valve and means to operate'thesame to control the connectionirom the valve chest to the several bellows, and an. indicator operatively connected with the slidevalverto be moved in accordance with the m'ovcement thereof. 1 v H K 7. In a piano, the eqmhinationwith the hammers, of a mainrest rail, a bellows and connections for moving the main rest rail toward or from the hammers, a series ofbellows carried by the main rest rail,a sectional rest rail carried as to itsseveral sections by the several bellows, and means to control the expanding and collapsing of all of said bellows severally.
8. In a piano, the combination with the hammers, of a maimnest rail, a bellows and connections for mov'ing the main restrail toward or from the hammers, a' series ofbellows carried by the main rest rall, a sectional rest rail carried as to its several sections by the several bellows, a. pneumatic for controlling the first named bellows, a valve chest having separate connections to the several sectional rest rail'bellowsand having a connection to said pneumatic and a shde valve and means to operate the same to control said pneumatic'and to control the connections from the valve chest to the sectional rest rail bellows severally.
9. In a piano, the combination with the hammers, of a main rest rail, means for moxing the same toward or from the hammers, a series of bellows carried by the main lrest rail, a sectional rest rail carried as to its several sections 'by the several bellows, a valve chest having separate connections to said bellows severally, 'a. valve to control said connections, a wind box and connections to the valve chest and means to control said connections from the wind box to the valve chest.
10. In a piano, the combination with the hammers, of a series of bellows, a sectional rest rail carried as to its several sections by the several bellows, a wind .box, a valve chest connected with the wind box and with which the several bellows communicate, a controlling device, means operated by the controlling device which control communication from the wind box to the valve chest and independent means also operated by the controlling device to control the connections from the valve chest to the several bellows.
11.. In a piano, the combination with the hammers, of a series of bellows, a sectional rest rail carried as to its several sections by the several bellows, a wind box, a ,valve chest connected with the wind box and with "which the several bellows communicate, a slgnallng device connected to the wind box,
a controlling device, means operated by the controlling device for controlling the connections from the valve chest to the several bellows, independent means operated by the controlling device for controlling the connection from the wind box to the valve chest, and independent means operated by the controlling device for controlling the connection from the wind box to the signaling device.
12. In a piano, the combination with the hammers, of a series of bellows, a sectional rest rail carried as to its several sections by the several bellows, a wind box, a valve chest'connected to the wind box and having separate connections to the several bellows, a valve to control said separate connections, a. pneumatic to control the connection from the wind box to the valve chest, an oscillatin r lever operatively connected with the Va ve, a shaft upon which said lever is mounted, said shaft being movable longitudinally in its bearing, a connection having a port adjacent to said shaft and a valve normally closing said port when the shaft is in its normal position and moved by the longitudinal movement of the shaft to open the port.
13.-In-'a' piano'ftlie combination with the hammers, of a series of bellows, a sectional rest rail carried as to its several sections by the several bellows, a wind box, a valve 'chest connected to the wind box and having separate connections to the several bellows, a valve to control said separate connections, a signaling device 'connectedjto the wind box, a pneumatic to control thecon: ncction of the signaling device tothe wind ion box, an oscillating lever operatively connected with the valve, a shaft upon Which said lever is mounted, said shaft being movable longitudinally in its bearing, a valve controlled by the longitudinal movement of said shaft and an air connection from said pneumatic to said valve.
14:. A controlling device for pneumatic piano players, comprising an oscillating lever having a mechanical connection,a shaft upon which said lever is mounted, a bearing block having a slotted bearing in which said shaft is laterally movable and having an air port normally closed by the shaft and a spring holding said shaft yieldinglyin its normal position. ,4
15. A controlling device for pneumatic the shaft in the longitudinal movementv of the shaft.
This specification signed and witnessed this 21st day of December, All, 1908.
HENRY S. HORNBECK. Signed in the presence of- W; B. GREELEY, AMBROSE L. OSHEA.
US54046710A 1910-01-27 1910-01-27 Piano. Expired - Lifetime US951276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US54046710A US951276A (en) 1910-01-27 1910-01-27 Piano.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54046710A US951276A (en) 1910-01-27 1910-01-27 Piano.

Publications (1)

Publication Number Publication Date
US951276A true US951276A (en) 1910-03-08

Family

ID=3019687

Family Applications (1)

Application Number Title Priority Date Filing Date
US54046710A Expired - Lifetime US951276A (en) 1910-01-27 1910-01-27 Piano.

Country Status (1)

Country Link
US (1) US951276A (en)

Similar Documents

Publication Publication Date Title
US951276A (en) Piano.
US848207A (en) Automatic piano.
US1115383A (en) Automatic musical instrument.
US709962A (en) Automatic player for keyed instruments.
US1325294A (en) By cecil
US1265792A (en) Expression device for automatic musical instruments.
US744990A (en) Mechanical musical instrument.
US1224693A (en) Automatic music-playing instrument.
US1186975A (en) Self-playing piano.
US869678A (en) Mechanically-controlled solo-accent device for mechanical musical instruments.
US768414A (en) Automatic musical instrument.
US1304344A (en) Reed attachment for piano-player devices
US1325523A (en) Playes-piano
US833026A (en) Mechanical musical instrument.
US470323A (en) Fourths to edward ii
US1190893A (en) Pneumatically-operated piano.
US1264164A (en) Musical instrument.
US608252A (en) Self-playing organ
US587270A (en) Pstcrs
US754886A (en) Means for regulating the expression of mechanical musical instruments.
US995766A (en) Player-piano.
US901323A (en) Automatic piano.
US1723513A (en) Musical apparatus
US729260A (en) Key-actuated musical instrument.
US901929A (en) Automatic piano.