US1103582A - Expression device for player-pianos and the like. - Google Patents

Description

C. P. HIDDEN.

EXPRESSION DEVICE FOR PLAYER PIANOS AND THE LIKE.

APPLICATION rILnn nuns, 1910.

1,103,582. Patented Ju1y14,1914.

2 SHEETS-SHEET 1.

mg. /5 am, n-foz tn: NORIIS rsrzls cm. \nsmycvmv. n. c.

C. P. HIDDEN. EXPRESSION DEVICE FOR PLAYER PIANOS AND THE LIKE. APPLICATION FILED MAR.8, 1910.

1,103,582. Patented July 1419M 2 SHEETS-SHEET 2.

Ill/717177)) 52 awn/mama o: H

"4: Mann; rnsns ca" wunmcran, 0. cv

CHARLES P. HIDDEN, OF NEW YORK, N. Y.

EXPRESSION DEVICE FOR PLAYER-PIANOS AND THE LIKE.

Specification of Letters Patent.

Patented July 14,1914.

Application filed March 8, 1910. Serial No. 548,039. 7

To all cclr o'ffi' it may concern 1 =-Be it"lmownthat I, CHARLES P. Hlbonma citizen of the' UnitedStates,- residing at New "York cit g' iii'tlie boifoiigh'o f Manhattan and State of "New Yorkghave invented certain "new a nd useful Improvements in Expression 'Devi'ces for Plzij r -Pia'nos andthe lik'e fof a full, clear, and. e X- which the following is "iict description;'-"

1 Tlii's" invention "relates to"an xpression" de'- 3 for player pianos and like: instruments, 1 *andihas for it'sobjecfithe provision of means 1 demerits {whereby -'a' performer tng'th relnaindemf he'neteeassetay o'r loudly as desiid. -'-"The: accen tilig'firieail is thaniiz'illy' controllable, if desired," and a ffifrthhr ebjce3a my= invention is the pro visidn 'of {automatic means for efi'ecting the ame'"res'ultf, "should the operator not desire to control the selec'ti n-ibf*thenotesto be djmu z ioriuo 5:1 :i: 1; i

inventior'i'fl'lrthei" comprises novel inn'ie'aii's for showir'i} what' portions of the scalehre at ny given moment-acmt bl Jhijljl'h i 1. 5:; "11 The invention further contemplates "the p'rovisibn of-two relatively independent vac; uum systems and comprises' r'i1'ean's for reducih'gth pressure in one of "si1cli "systems for" modulating the intensity of "tone-of note "whi'ch it is desired not to'accent," instantaneously'fsubduing the same to the dc sired extent 'despite the fact that at the preceding instantthe" entire mechanism may have been operatedtothe limit of its power. The invention involves nianv other novel and useful features,-which will be hereinafter described and set forth in the specification andmore particularly pointed outin the claims appended hereto. 1

Referring therefore to the accompanying drawings which form a part hereof and in which like characters of reference designate like parts throughout the several views: Figure 1 is asom'ewha't" diagrammatic section takenthroughdhe bodjr of the piano,

centrally "thereof in the lower part of said secticn mnd somewhat to one side of the center in the upper part of said section as per the indicated line of section I'I as. in Fig.2; showingto'ne producing means and accent controlling devices for operating'said tone producing means with anyde'si'red in tensity;- Fig. 2 is'aplan'of the "expression controlling device, which Ifpreferto sup} port fronithe' i under "portion of I the :piano front) F ig.'3 is'a-f'ront elevationfpartly in section; ofs'ai'd devicefthe s'ectiorisi of "the respective sectioned 'parts'heing taken on line" III-III of 'Fig. 2. Z 4 is an en'- --larged"detail of a; valve stei ii, "showingf*the valves in p'lace thereon; 5 is "a "Section taken onlin'e v v of-Figi'n. Figt'tiis a t'ion' withthe'manuall'y operated'shaft: my: 7 a perspective" 'view' 01 designed-. 3 1; inder.ffFig. s :is'ema'r'geawiw "of rrag enc ef t e'sarneg'shqwing tlf disposi ftion 'o'f thf'hipplestheroii'Fig:F9' is an erilaiged'transversiseetion ;;tlieY'ii'1diaZtiiig device? g? 10' is" a frag'inefitary'felev'atibn of, said ffd vi 'ce; 1' 1 is -a saga-enter section 01a valvechaiiibei-I" -ig; 12

side elevation, showirig'the pedal' parts ed 'back in to the piano b zisinglf F 1g; diagram illustrating the relative movements of the low and high vacuum hellows vvhen the pedal has" traversfed' one quarter of its perspective'l-view of "a' sleeve used in 'connecstroke. Fig. 14is-a correspondingdiag'ram when the 'pedal' has traversed three-quarters of its stroke? Fi gf 1 5"is a side view of ar Portionfki'f uie" brake mechanism; sho'iv s 'a fragin'eiitifi the ndbffa trackerboardwith apiece o'f rollir'fpositidn thereupon, the paper being torn away- 'toishow the" position of" the expression ,device" con trolling 'vents."" Fig. 17 show's' 'a modifica' tion of the valve cylinder; and Fig'. 18 isa partial longitudinal vertical median section of the ferre'dto. '1

Referring to Fig. 1, the usual roll box 1 carries reels 2 and 3 therein, the usual paper strip 4 passing-over the tracker 5'and the small tubes 6 leading downwardfroin' the said tracker to diaphragmedrecesses 7-, in

valve chest hereinafter re;

theusual manner. The operation of the dia-- phragm 8'b y 'the admission of air to chamber 7 displaces'a valve 9 and throws pneumatic 10 into communication with the exhaust. Pneumatic 10 operates 'the tone producing device 11,' which in this instance is ahanimer and string. "The diaphragined chamher is provided with the usual bleed hole 12. Normallyt-h'e pneumatic 10 is*1n communi cation withtheouter atmosphere through the port 10, but when the valve 9 is driven to theleft; as vievvd in- Fi 1', said valve 7 engages the small annular oss 9" at the month of the port or passage 10' and closes the latter to prevent waste of air. \Vhen said valve 9 returns to the position in which it is shown in Fig.1 said port lO' is of course again opened. In so far aswe have gone, nothing particularly novel has been pre seritd- In my "device; howeverfthe valve chest 13 is divided longitudinally thereof into two compartments 14 and 15; compartment-t m n o ee ei i b he h I m eve-le d C partm t 1 w h. the -.lev e.q m ibe lav here ft rt referred: e-iAfi ri sao -ev lve-shamb s .1 r posed preferably dyetween compartments 14 and,15 ,In this exemplificatiomoflmy invenhan -I have showninlFi .111 therespective} ii a a set h ,eqn mll ng heesheu -f qm fazgroup of, threg ggiote {sounding pneumatics three 3 dj ini peeam tias exha s n t @0111- 11.1011 v lra-wqhem eaka es 19 -i sall tis ae a velv t-s xt ndas b nand. such; ;tube is plugged at 20 prefera ly at a point between va ve-18 -:and the upper end of ,the stem. A .comparatively minute perforation 21 is provided above the plugz 20 and sec ond perforation 22 is providednear the of 'thesaid stem,,.: ;The stem is carried brackets,23 and. 2 t, as best shown in'Fig. 1; such brackets being respectively secured-to the-upper and lower portions of the valve chest. A collar 25 secured tovalvestem17, limits the upward movement :thereof .by impinging against the underside of bracket..23,,and .the said collar has, seeu red thereto the diaphragm, 26, the periphery. of-which is made fast to the edges of an aperture 27 provided in the upper portion .o f. the. valve chestcorresponding collar 28 and diaphragm 29 are positioned 3v iiearthe ,lower portion of .the stem, and are correspondingly secured thereto; diaphragm 29- clos ng aperturelw in the lower-portion of. the fcasirig;in cor-responding fashion to the man er. aperture 27liszclosed .by

meter of whicha prefeiably tapers gradu ally tpward. its upper: end, shown in Fig.

t ns Pe r-id a .i' r

1,bears against the lower surface of valve 19, the lower end of said spring being seated against the bottom of the valve chest. Spring 31 hence normally tends to maintain valve 19 against its seat, leaving valve chamber 16 in communication with the high vacuum conduit. Below the valve chest-13 are a series of pockets, in the lower portion of each of which is formed a diaphragmed chamber 32. Each of said pockets is closed by a diaphragm 33, and the space above .said diaphragm is incommunieation with the atmosphere by reason of an aperture 34 in the side of said pocket. .The "alve stems 17 extend downwardly into said pockets and. the

lowermost extremity of each of said stems is respectively. secured to .one' of said diaphragms 33. As the stem ishollow and as a smallaperture 35 -.is provided approxi mately at the center thereof, it isobvious that when either .a high or low Va u as been produced,,.the dia-phragiu -,.3 3 held in depressed position, since the hollow stem opens into the champer: 32, therebe'lqw and thisaction is sufiicientlystrong to over.-

.come 'theten'dency of spring .31 ,to retain stem 17 in its upward position.

The diameters'of diaphragms aresiibstantially equal to each other, and-are also substantially equal to the -di an1eters .of thevalves 1S and 19, as a result of which in so far as the relative degrees of vacuum in the conduits 14 and 15 is concerned, the sev;

eral .valve stems will be uninfluenced thereby to any material degree, and hence each will respond only to the actions; of its dia; phragm 33 and spring 31. From the above, it will be seen that when air is admittedto diaphragmed chamber 32, spring .311isal lowed to perform its normal function of throwing the. respective pneumatic into communication with the hi h vacuum conduit; whereas the moment that atmospheric communication is cut-off from said chamber 32, the air-will be exhausted there-from through'tne interior of stem 17, and the stem will be correspondingly lowered, throwing pneumatic 10 into communication with the low vacuum system. struction of valves 18 and 19 is somewhat peculiar in that it will be observed that each of said valves is provided with a. thin or shallow flange 35', and the cylindrical body of each of said valves is notched, as at 36. for the passage of air. As the said body 37 is somewhat deeper than the depth of the seat 38, which engages flange 35, the lowermost edge of the body 37 ofthe upper valve 18 will engage the edge 39 of its valve seat before the lower valve 19 has clearedits corresponding edge, and hence communication between the high and low vacuum conous impairment of the vacuum in the high The conthe upper guide bracket? 23 is preferablylined (with chamois or the like; so" as to afford a proper closure to. the vent 22 when the stem 17 is in its;lowermost position, and a light spring arm 40,.whichdssecured -to theninterior ofthehigh vacuum conduit, normally tendsito 'closezap'erture 21 when the latter-is' in its elevated position bycov- .ering-the same with the end 41 of said arm. Such ,end; may be stippedwith= ichamoisf if desired, in order-to afford a .proper closure. A-tubfei 42 :connects the upper extremity -of stem 17 with.' a! nippler4:3;jwhichvlezids into; a quite small, diaphragmed pocket :44 a: seriesc-of. such pockets being: formed: byi-bormg, holes in -abar-4E5 of woodnor the like,

-which is positioned upon the bOttOmiOfithe roll box, as indicated in Fig. :.l.' A diaphrag'ni .46 :closes each :of said :pockets, said diaphragm having secured in 'the center thereofia small diSkzZtTfOfjCflIdbOfll'd or the like, .to .which is hinged a light link, 48 which may: also; of cardboard ;i=said dink being 'icorrespondingly hinged to flapi49. Flaps {la-areqareferablyi'zwhite, and a portion ofi'such-wfiaps is adapted-to be exposed through aFslOt o 50- which -is-.=formed' in the front of acasing- V51 swhichincloses the said flaps, diaphrag1ns,-and connecting parts.

the-interior of each of diaphragmed pockets-445$ a hair springi-52,'- which normally distends its corresponding diaphragm 4:6 and thereby holds the white flap 49 which is securedthereto up against the innerside of the slotted easing.- When-the valve stem 17, is in its-uppermost position-,-'the aperture 21 being closed, and the vent-22 being opened, air is admitted to the pocket 44 and the-spring is enabled to exerciseits-function in the manner-abovedescribed; but when valve stem l7.is depressed aperture 22 is closed and aperture- '21' correspondingly opened so that the minute quantity of air contained in the said pocket is exhausted therefrom; as .a result of which, that particular flap 49iis pulled back away from slot 50. As theinterior of casing 51 is quite dark, when flaps 49 are not so exposed through. said slot, and hence, an efficient means 1s provided for indicating-Which lpfneumatics are in; communication with-the high vacuum system.-

Considering now the method of operat- 1-7 and aperture 35 tothe' .that=' articular valve stem the slot appears black,

ing the stems 17 aforesaid, it will be seen that a series of tubes 53 connect diaphragmed chambers 32 with their respective nipples 54, upon the nippled cylinder 55. These nipples are preferably outwardly directed in staggered relationship as shown in Figs. 7 and 8, and have their inner-ends substantially .in alinement as shown by:the apertures 56 in cylinder '55, into which said nipples are inserted.I The staggering of the nipples permits a closer assembling of the same, so-that the diameter of'cylinderi:-55

may be made as small as possible. In this instance, as the respective pneumatics "have been grouped into groups of three, there will be .substantiallythirty nipples 54: The interior of cylinder 55 is preferably lined with ehamois or leather or-some other suitable :andedurable material 57, such material being :cor'respondingly: aperturedv with a series of holes-'correspondingto apertures"56 in cylinder 55. .It is'zevident that when any one of these apertures in lining 57 is closed, the air-will be-immediately exhausted from corresponding chamber 32 through the stem exhaust, so 'that 17 will bef corre= spon ingly depressed; In order-to control the uncovering of these apertures, I-have provided a cylinder "58 whichfimay be of pressed glass, or metal, or other suitable materiali Cylinder 58 is carriedupon -a suitable spider 59, which-maybe integrally formed therewith, *and the hub "of 'which spideris :secured to a spindle or shaft 60;

such shaft being axially disposed-with respect' to cylinder55. Cylinder 58 actually constitutes a-cylindrica-l valve,'and'it is providd with: a 'series of three rectangular apertures 61, 62' and 63. As shown in'Fig. 2, the said apertures -are all substantially the same width, andthe right hand edge of oneis in alinement with the left hand edge of the next. The width of each of these apertures is of justsufficient size to uncover one of the small ports in the lining 57 above described; As viewed in Fig; '2, the outerlnost side'of aperture 63 is open, and adjoins a slot or. recess 64, which is of substantially the same depth as each of slots 61, 62 and 63,;but the arcuate width thereof is considerably greater, so that when slot 64 is disposed opposite the apertures in the said lining 57'," a number of the apertures in lining 57 will be uncovered instead of one, such number in this instance, four. A correspondingly wider slot 65 adjoins slot 64 and is adapted to uncover seven of the ports aforesaid, .while the outermost'slotted or cut-away portion 66 is adapted to uncover fifteen of the said ports. It will hence be observed' that this outermost slot will permit the .accenting ofsubstantially one-half of the register of the instrument. If now the cylinder 58- be given a certain axial dis- 'positionf-such forexample asto opposeaperture. 63 to' the individual-ports in the circularline of the same in lining 57, one

after another of said .ports .may be uncov ofgthree results; ini-p racticallyaenabling the operator to select at will any. desired note in a piece to accent thezsame. Jilf now the slot 6 tsbe-dis'posed;adjacnt. tothe said ports any notes Iwhich .cflome iwithin the? group of-itwel-ve notes so coveredgmay; iOfiLCOIiT$BGi accented.

Inf correspondingsfashionfiwheiiizslot 65: -is so 3 positioned; the? group of- 'accentable notes.- at

the "adi'spositionv of, tllixOPGlIfltOIf 5 correspondingly; -enlarged,=-. and such-group comprises a still'fgreater nurnbergpf notes Lwhen slot 66' auseds lfvnow-i cylinder; i 5 8l ibe ro; ta'ted, .it gap'pairentthatithe. igro'up will not change substantially [in shumbnabutn willi he shifted up or1dowf1i theiregister-aecordingto the direction of rotation-10f the; said cylinder.

- Le'tius e'now consider,- .the;;means for -con-' trolling cylinder 587k) ,r'thef-a'ction' of-which the desiredresults 'a oresaid area-attained. The spindle,- 60 is" rrevolubly; niounted in brackets! .67,- 68, the --.positions 0faz'FSu0h brackets -being' :diagrammaticallyi indicated in Fig. 2.-;11To=jthe rear: of cylinder-58 is a small pulley; 69 which=is keyed or otherwise properly secured to shaft-.60. .,The helical Spring 70, whichis preferabl'y of consider- .ablellength and quite fiexibleihas one end 71 thereof secured to shaft :60 -or to pulley 69, and the other end is correspondingly secured to bracket 68. This spring normally tends to push the shaft outwardly-toward the front ofJthe piano,.and:- also normally tends to rotate cylinder 58 clockwisez-as; viewed from the front. The spring therefore performs-a double function} and serves to in variably; return cylinder; 58E to a predetermined and-definite position when permitted so to do..:;?-A suitable'chain or .eord 72 has the end; thereof secured to the. periphery of pulley 69, and passing around the said pulley goes-from: thence over to a pivotally mounted segment 73. Segment 73 is pivoted to a pawl or stud-174 which is carried by a suitable-bracket 75. I prefer to provide -a sleeve 76 in said segment,-such sleeve being made of metal and the segment 'of wood.

Upwardly extending from the face of segment 73 are two parallel lugs 77 through which extends a pin 78, said pin-bearing pivotally mounted thereon a member 78,

the upper face of which as shown in Fig. 2

carries a pin 79, to which is secured the end of a link 80. The other end of link 80 is in turn somewhat loosely pivoted to apin 81 carried by the arm 8-2.0f a bracket'83. Arm 82 is bifurcated at the end thereof'for the reception of the end of said link and suitable leather or flannel washers 8 are provided uponthe respective sides of the end of rod 80, permitting said rod to swing or oscillate. laterally in all directions to some extent. The plurality of pivoted connections to the member 78 at the other end of said rod perform a similar function to accommodate the lateral play of said rod when the same. is moved to and fro. Rod 80 is reciprocated by the movement of a :shaft- 85 j which carries the bracket 83 thereon, shaft 85.zbeing grooved as at'SG forengagement with av pin 87 carried by the-said bracket. Groovei86 opens into an annular recess 88, which extends around shaft 85'and the walls of said groove, where it opens into said recess, are outwardly flared as at 89 so that when rod 85 is pushed inwardly, the pin 87 will be disengaged from slot 86 and will be free to move in recess 88; while 'the flaring walls 89 of the slot willufacilitate the reengagement of the pin with the same whenshaftSfi is retracted.- The 'bracket 83 i's iprevented from moving longitudinally with said rod by a bracket 90 which engages the respective sides thereof. The bracket 90, which has been merely diagrammatically-indicated in Fig. 2, in order to avoid-confusion, carries the innermost end of rod 85 while the outer end of said rod is supported by a bracket 91; bracket 91 having a larger bore'than the sa-id'shaft in orderto accommodate a sleeve 92, which may have a force fit with said bracket. This sleeve is groovedat 93 in the manner illustrated in Fig. (3, so that a pin 9* carried'by the said shaft will engage the said groove and force the shaft to rotate in'a predetermined manner when said shaft is reciprocated. The outer end of shaft'85 carries a shaft bracket 95 suitably secured thereto, said bracket having pivoted there upon a handle 96 which is provided with a pair of wing-like lugs 97, the face of which is flat for the most part but somewhat out wardly flared at the ends as shown. The outward movement of handle-96-may be limited by means of a set screw 98, carried by shaft bracket 95. The general arrangement of this portion of the device'issubstantially siniilarto that shown in'my com'- Feb. 8, 1910, and the appurtenances'to the handle therein described are equally applicable to this form of the device. The oscillation of lever 96 effects a corresponding rotation of shaft 85 and through the instrumentality of bracket 83 and arm 82, link 80, segment 73, chain or'cord 72 and pulley 69, a corresponding movement of spindle or shaft 60. It will be observed that the movement, however, will be considerably magnified'so that a relatively small lateral movement of lever "96 willetfect a considerable rotation of'cylinder 58; The fiat sfa ce of the Wings 97 is -ada pted to bear "against a small roller 99, which is carried'in the fork 100, which is provided intermediate'the ends of alever 101. A 'lev'er 1011is piv0ted to the under-side of the piano front" at 102, and carries upon-the free end thereof a piV-' oted finger 103 whichis rrecessed at its free end 10a for the reception of the 'reduced end 105 :of shaft'or spindle I60."HStop pins106- limit the lateral motior'irzof finger :103, .suchlmembersbeing 'merelyi provided zto 5 prevent/1 lateral thrust u'pbn shaft 60 when i lever 101* is: oscillatedrto translatevsaid -shaftal 1). i l are;

1t-isobvious theiefore thatwhen: lever 96 is "pressed zin'wardlyi about the pivo'tal -laxis indicated by the "dottedvl-ine shown-justba'ck of the lugs 97ninoFiga 2, V such .:lever Ibemg in operative position asishowh .iri Figs. 1'

and 2, translation ofl'sha ft. 85--is prevented by reason of the engagement: of pin-'94 there; orr' with 13116:" arcuate portion cof- :slot 93,?

while through the? engagement} dfirollen- 99 withlthe flat. surface alfordedbyg: wings*97,- lthe'- cylinder T 8zrnivill be drivenuinwardly through the action :of lever 101 upon the spindle: 60 result-ingin the :compression of spring and the shifting of variousislotsi 61, 62,-etc., into/successive apposition with the controlling ports in the lining of the nippled cylinders" :We ha-ve hence a -means. of rotatingcylinder 58 into anygdesiredpo sition and of also translating the same; as

a result of whieh'double' action, it is obviously possible to'accent any desired .note or notes in the register, by merely manipu-- lating arsingle lever. This lever is not-dissimilar to that in my aforesaid application, as has been hereinbefore stated, 'although the selective. means herein set forth is quite different. I now present, however, means for not only controlling the accenting device manually, but for also controlling the same automatically, and one form of the mechanism which may be employedto' this end will be now described. r

When it is desired to no longer exercise manual control, the handle'or lever 96 is rotated so that the pin 94 follows slot- 93- down around through the arcuate portion permitting the shaft- 35 =to-be translatedunder the piano front and owing to the upward trend of the innerend 107 of slot 93, the lever 96 will be rotated up closely under the front of the piano; Bracket 83 bearing arm 82 will be"disengaged from shaft 85, and the inner-most end 108 of shaft will'impinge against the extremity 109 ofa lever 1'10. Said-lever is pivotally mounted at 111 'upon an arm car'ried'by bracket and isnormally restrained'into 'thejposition shown in Fig. 1 by the action off a'spring l12,-one'end ofwvhich is'secured to" thede'ver 110, and'theotheryto the'said arm 'ofbracket 90; When le've'r 1'10 'is'actuated through the actionof'shaft"85,' -the'link 1'13 Ewhichis SQCUI'6d-CO t-l1e"Ollllel end Of'Said lever, pushes'a slide valve 111 into val've boy-11.5, and thereby throws an' 'eXhaust"? pipe-116 1 into communication with E'pipes" 117 and 118,'air then passing freely through ports of the va-lve" box "and aperture 114- of thcivalve. "'I he eiihai'istpipeTIGi's ponnected to the highf-vacuum 'system, and it' is evident thati-it is only in communica T85 tioh' w'it-h saidpipe's 117and'118 Whiifhtlft;

05' is 'in its ihn'e'i r'no'st position owing to the action bf'spriii'g 1 12. Of course' any 'si'lit able val've'migh t be operated bytheactio'n" pf shaft-85' the broad idea being that when the m anua lly" controlled accentingmeans are thrown out of-use, automatically"operating' devices a re" thereby thrown: "into "-actlio'n' through thedisplacement of one'of the parts afor'esaid.'- Pipes 117 and 118" respectively communicate 1 with exhaust chambers ll-9 sucli chambers beiiig"formed in blocks120, which are'adapted to'besecured bysuitable hrackets 121 to the underside of the Pi'andfront. The'entire interior'of each of th se blocks-"is substantially hollow to'fo'rrn'chain" bers 119, one of said bloc-ks being shown in 'scction"'at tl1e right hand side of FigflB Pipe 118' is-there shown as'communicating' with said cham'berg'the chamber being also provided with two nipples 121;122, which"? extend downwardly therefromi Block 5 is' preferably of wood, and is faced upon either side thereof with metallic plates 123 and 124'. A washer or liner of leather 125 is provided between plate 123' and block 120 and correspondingly betweenplate 12st and said bloclo The outer portion of block 120 is substantially similar in= construction to that of the block 126 shown in section in Fig. 5, and such construction may be here described. The endof the wooden'block 126 is recessed as at 127 to form a cup- T shaped depression. This depression is-cov-'* ered by a block 128 which has a corresponding recess 129 therein; the edges of blocks 1:20 and 128, clamping between them the diaphragm 129;said diaphragm-being provided-withva plurality'of apertures 130 as" shown in Tig.-5.- 125 To the outer side of diaphragm 129 is se cured a disk 131 of' suitable lightmaterial such'for instance as papier mach; and the said disk has-secured thereto a stem- 132,-:

which projects outwardly therefrom and-5 carries gupon its outer: end ,a smaller-disk 133. g;Disl ,1 33 is.secured to the inner face e. d a h a m shift-5415 911; di phra being amp a end i rer bhe a api r irons beszue a'-ble k .2. nd asp a 1 .11 whi h S: e ur d-:1 tea th remity- Qf. ,i the: d Y Pl e 1. car ies he es au lea p lw 2r en agement-Walla tube-1. 6: 5 1 9.

idet iiplatej l3i san ehed1at ne p t .2 lov h re i-a ar itsiperiphem'a atal zi ld a r p n ing n ch vor ac ess as p o ded hemppo ii iasfii:b ockal28,ra at 1 l h diaphmgm: is. ea e fi m yi n oi -z a e d hasaani perti re orm dfth w 16 5 set P nt whishl s: sommu ai iei iiwith-fi h v p cesbe w en -;the dmewh t ase-diaphra m 1 am {sa rs plate 35, ndsth apas age i r eble ah le 39." which, leeils cthmllghf ipprt qni Qt; block 1 2o s ndmm ueai i at iwi hi h fixh ustipas ge 4 lfig gyvhichv lea s'ni om kthe qhamberw &1 rmed tw enathesdi nhragmrwsmnd the: aph m slgi -o-fi ih it-[serves 18 M 1; rva r 'tc' 1.919 (t xeipert-ib tw emch en 12.7 (z fiddlf lirfi iii-mire being! eihausted m e a lizrfir mabothvsidesi 10 diap tagm i134, pqsi i iwfigiv ll Q-i :kag inst: I ts seat .1 quite. firmlyzjbylea's n ofithe tme ph ie pr ssu e? n ehaa b z 112 I wheny howeyery-airi is ads: qmitted; through tube, ,136; 1the diaphragm 134 i lz'b be li endiby ma io tsac paratigglyplargei cream-ill; open -valvei 131 ndunefimi l ir-1 tieibe; xhaustedtf om por 1 12, wh ch isiinsco n u ic i n withkcham. -;l2 i BOLT @M2it z ay-ibezfherei" not d,

le d -i t -apneumatiq the Q QWSmf-Which reishow-n. etilfiwi in (um Reierring now to, Fig.- fig-it will; be:- iseen that '1neans have hcennshown whereby the ipneugnatic 1 141, oommunioates..-with the chamjher 119, thrpughi thelg olldu t Mcfiiin similar. fashion.-.

that vin tvhich; pneumatic 113 conununicates ewith conduit 140.1; nipple 140} j leading eonduiti l kO corre's pondingly communicates; with, the: nipple-1121 leading to:chamber- 119 by r-meansaof reflexible tube;{lfifishow a inidotted lines in 2, and, in fulL-lines to-zthe left of Fig. 3. A block" ,l fl similarly. provides means %for throwing. a pneumatioilii into communica tion with chan1ber--1-1-9,--through theins'tru mentality ofa similartube-l wf; The-pneumaties 1451, 143 and;l{18,: have arelative-dis-; placement proportional "respectively to units 1,..2, 3;;-;that is, the movement which pneumatic 143 'is adaptedto effect is twice that of pn'eumatic Meg-and pneumatic 148 is correspondinglyadapted' to effectuate a movementequal to three times that ica-usable e: by a full movement of pneumatic"}144.:;As all of the ;bloelgs'and;ipneumatics are secured to each other succession, in the' man'ner shown, it is apparent that whe-n the @ainis exhaustedpfrom zone of the three: a acorrer plate or member 150 which is secured to the farthest side of pneumatic 1618. Plate 150 ,carries upon the upper portion thereof a laterally extending lug 151,fron1 which lug a pin 152 extends upwardly-a suflicient distance to engage a bent rod 153 which is se cured by screws, or in any other suitable manner, to' segment 73-;shown upon the right hand side of Fig-:2; Where the segment isoflarger radius as shown at 73 upon the left hand side, pin 152 engages the end of a-slot 154 on the underside of said seg-. ment; the action, howeveiylin both cases is substantiallythe same, it-being merely desiredthat eachflzpin 152 shall.have no fixed connection .witlr-its-g'espective segment, in prder th'at thepneumatics .maynot be operatedtby the movement of lever 96.; -The. rod 153- -issomewhatirL-shaped, the long arm thereofibeingcurved intozarcuate form and the -extremity of 'suchirod being provided kvith'la cup-shaped leather washer 155,:Which isise'cured5 to the end thereof by means of a metallic backing washer and screw .in the hSual-manner in :which such parts are assembled-in dash po'ts. A'similar construction is shown at the left hand side of Fig. 2; rod 153 being-there shown-as engaging-an arcu 7 ate tube 156, the innermost end 1-57; whereofd isfclosed; Rod'-'153,extends into a similar tube in corresponding fashionl Thefunc tion of-this' part of the apparatus is to oper-p ate' as a' dashpotso that-the parts may not return-.toYo-quicl'rly "to their normal positions under thefinfluen'ce of spring the dash pots: being in each-case adjusted to the end that such movement may be rapid, but'free front-jolt? 7 h 1 :The apparatus'shown on the right and left hand sides oLFig. 2 are substantially the105 same except for. the difference in the size. of segments-employed and the particularduty ormfunction of such segments; and thus a description of one will suflice for both. The arcuate rod 153 is adapted to begripped between the jaws 158 and 159 of the brake mechanism shown in' Fig. 15; said jaws being pivotedtogcther at 160, and such pivot being supported by means of a suitable bracket. (not shown) which-may be secured to the under side of the piano front. Jaw

158 is integrally united with an arm 161; and jaw 159 is ,zcorrespondingly joined to an arm 162; so that when the said arms 161 and 162 --are' spread apart, the jaws clamp togather upon rod 153'. Such action is effected by-means of a slotted block 163, the slots l whereof form an interior wedgeshaped portion 161, which engages the ends of-arms 161162.- Block 163 is normallydriven into engagement with the said arms,

asiabove described, through the action of a spring 165', which-bears against the said blockand a bracket 166, through 1 which passesa rod 167, which carries the said -;block 163 againsttheaction of spring 165,

and when such retraction occurs, the lugs 169 and 170 of block 163, respectively engage arms 161 and l62-forcjing the'jaws 158 and 159 open. The evidentresult of thisbraking. the rod f 153 in anygiven the neumatics, above described -;are =.not adapted for operation since the exhaust is shut 0H therefrom and; hence, the respective groups of pneumatics are;distended-,to-the= limits of their-movements, :being opened out accordion; fashion under the..--. action of springs .171, which respectively engage the,

1 plates;;1-50, the, other; ends ;of said-,springs being,sec ured to the .piano casing, -,,-When,

the manual operating means aredisengaged the pins 152 will :come into engagementqwithl, p r h n e ywm one, case the. rod 153, yand the -,o.ther, the;

the respective engaging outer-end Qf -S10 t]l54,- so that-zany action of;

the said pneumatics in a givengroup of the same willresultin a corresponding actuation of. the, proper segment. When i'the fpneu Z-matiCSiOf the group iupon the left hand side? are operated, they; 5 rotate -.the, shaft 60, and,

hence the cylinder 5,8;3:while whenfthose upon the right hand-,side. are. actuated, they. move alink end of wh ich is connectedto v a bell-crank-173 which .is ;pivoted at 1,7,4: gto -the underside. of

the piano casing The remaining- 5 arm 3 of. said bell-crank is correspondingly connected to a link 175 which inturn is pivoted atf176 to the lever, 101, segment 73 l -S in translatio t cylinder ;58, 1

The pneumatics l ig, ree spectivelyicontrolled through, thefa'dmission 1 of air through tubes 177, 136, hereinbefore referred to, and tube 178, there being of course a right hand group of three such tubes, and a corresponding left hand group; The left hand'group communicates respectivelywithapertures 179, 180 and 181 which are located at the left hand extremity of the tracker182. These apertures are preferably positioned in alinement and are located just beyond the end of the ,line of apertures 183, in the tracker, which serve to control the,. -note sounding. spondi group of three apertures or ports is provi respective tubes with of expression-control neumatics; gA;section of,.a sheet of perforated music is? indicated at .1 84 in Fig. 3, and in '88 note nusic there is usually; a certain space along either edge 172;. one .=of which is ,pivotr, sally conneeted t'o egment {-73 andsithe other 1 and; hence, movement of pneumatics. .A corre-;.

ed at the other end. of the tracker, and such ports communicate through their the right hand group i thereof which is free from perforations; the overall length of the group of ports 183 be ing somewhat less, approximately one inch and aihalf, than the Width of the paper roll. There i hence ample space'for the provision of ;additional apertures 185 alongytherespective edges, such apertures being adapted toluncover orts .179, 180 and-181, as desired. Should, for example, a port 179 be uncovered by;.an aperture passing thereover, a corresponding pneumatic lat-will be iactue'r. atedQ;- Similarly if port 180 vbe;uncovered pneumatic .143; will act, and in 'similarv fashion pneumatic 1 18 iscontrolled from port.1 81; the ports upon the left hand'side of gthefitracker controlling the left hand groups-of pneumatics, and-theapertures on theyright hand-side controlling the right handgroup .;of pneumatics. As the said. Pneumatics are all secured to eachctherljitbecomes -possible to;rnoveplate 150 of eitherjj one-ofthe groups into anyoneiofFsevjenS positions ;;sin ce when all i of; thegpO EtSjjarQ-j. closedthe plate will be'in the position shown in Fig. ,2. 5 If; port-A79 be opened and -;th'e-- other gtworemain closed, the plate'150 will, angularly-,-. advance g one step.: -Simil arly-, if ,w port 180- be;uncovered, and ports.l79.and 181*;

remain closed, it a; will; I advance; two-steps, 4 5. e;, etwice the advance previously. aceom .g;

pli hedml k n rif port-1.81 baa- .1111

covered, .lZSLand 180 remaining closed, ithei plate M L-a v ncethre st p :NQYV :ifi po t 178 ;aud, 181 .be simultaneously uncovered-,

the.plat,.- will advance through four stepsa and through five; steps,

If 180 ..and 181, be, uncovered, it ,willlmove 5 finally-1 if ,all three i ports be uncovered at one time, it'will boi moved through its equivalent to six-steps; It therefore follows;

any oneof seven positions, and in likezmangentire travel, which isi thatthe cylinder 158 ,may .be rotated Into;-

ner, it maybe: correspondingly .translated Intoany one ,of seven positions by meanS ofthe right hzfnd neumatics, x, As has hereinbefore been statedholes 61,

(Band 63 dominate ordinarilyone port in the valve cylinder 64, 65 ,and 66 correspondingly;larger num-' bers of ports. As the cylinder is adapted to be moved axially into any one of seven posiat one time, and the holes tions, the ,first .position will normally place apertures-61 in alinement with the ports, the; second, aperture 63; the third, aperture 64:; the fourth, slot ,65;. thesixth, slot 66; and

the seventh will. uncover all; of theportsp thereby placing all g'of; the notet sounding.- pneumatics in -conmunication with the high vacuu111 system.-: If nowg the steps in rotation beso arranged that a single step of'the pneumatics in.the lefthand group will rotateia given aperture; as for example .62, i cylinder; ing 57 ofzcylinder 55, and correspondingly advance ,three; more for each successivegstep,

58, past three apertures in the. lini so" of its travel, it'is evident that the central note of the group of three controlled by each of saidlining apertures, will be spaced ten notes distant from the central note of the 51; group 'dominated by the next step? Inother wordsjtheg notes -can be accented in groups of three and such :groups ca'n -be moved at will up (ii -flown the registerskipping six inter-mediate notes ;at -a"-'time. iks ifow the edges-of: apertures 1-61, 62mrd w are im= alinement as hreinbefore de'scriliedg 'iif aperi ture62=controlh the traveling gro'upin ques" tiori, 'it' is evident that if the cylinder 'be' not rotated; but be translated inwardly]; or out'-" wardly i one step, the {intervening groups of three notes each will-also be controlledr' hi this 1way"throirgh the cooperatiom of-;the b 2&a0thbr wpr sythe"alteration'bfjthe diasitf of air in suqh pdnsefiettethe actuation drake cdntroilin'gfelements or;the expiessienfi' de vice; the: constituent portsof sush -group 0f six' 1port's"'being= adapted for perm tations;

In erdewto save air andcoris'eq'uent' wantuptn ute part of ithe prferformerf'bf Maireing? stiumentg 'assmning the iifirby' pedals, 1 'iovide the brake meclianism hereinbforefdeslcribdv n wiu" be observed that immediately above po'rts 179; 180and 181*, are t reepdrts186'j18 7 and- 188."-1jhse* ports may be" made continuous "if desired; ithat is, all in'one, butinZ order j to prevent Grinnin r themes-r of 16'011184, it tsp-ref erablethat they made asin'dividual ports," such ports, however; opening into a' cornmo'n tube 189, and suchtube controllingthebrake Fpneuniatic 168. For "simplic'ityof illii stration, the right hand b corresponding tube 189- havebeen ornit't'ed irrFigs. '2 and 3,"'bi1tit willbeunderstoodthat, as has hereinbeforeebeenstated,the ar 0 rang'ement of these particularports issubstantiallythe same upon the rightandl'eft hand sidesof the selecting; mechanism. It follows therefore'that'asi' any given aperture 185 approaches its corresponding port 179, 180, -or 181, it first uncoversfa brakeport 186, 187, or 188 and as-the space between ports 1% and 179, and in corresponding fashion the/remaining ports ofthegroup, is very small; the fbridge being' preferably .0; merely of sufiicientwidth 'to prevent air leaking through under the paper roll ,the brake' pressure will be removed' from rod 153? or 153',"just-'an instant before the respective". group of pneurnatics is operated Iandaper tures 185 may hence be quite short, since the rake 'p'neumatig; and its 1 brake willbe set again immediately after the pneumatics have assumed their proper positions, locking the same in such positions, and the exhaust being thereafter cut-oil :from said pneumatics; the tendency to re- {turn tot-heir initial positions shown in Fig. Q under the action of spring 171 being overicome through the friction of the brake jaws.

(Ihe' quantityof air consumed by myselecvfive-mechanism is hence very small, and this ll-re'gard as a most valuable feature, and one which I believe is broadly new and novel.

l "-We may now consider the operation of the rnechanismfor controlling the relative inftensiti'es'of vacuum inconduits 14: and 15.

Conduit 1 1 communicates with a bellows 200 -means==of a port 201 conveniently located his base block 202, said port being in cominunication"with a large dialnetered tube 203.; @orrespondingly) conduit 15 communiates-by means of tu e 20 1 and a port 205 n said block-202, with a bellows 206. It

the usual description should be inserted into the system where needed, together with the 3 twill be understood of course that suitable reservoir or auxiliary vacuum chambers of iisual check valves, indicated by dotted lines 'at-203.' The pair of bellows 200 and 206 showniin Fig. 1 are positioned toward the right hand end of the piano in the interior thereof and a corresponding sct of bellows is provided in'the other end, and 1 prefer to-provide in like manner two sets of tubes 203 and 20 1, so thatt'he conduits 14 and 15 are in communication with their respective bellows from the respective ends of said-conduits. The blocks 202 are rigidly supported in any suitable manner in the interior of the offsaid casing 1 provide a U-shapcd bracket 07' one-half of which is shown in Fig. 1. A shaft 208 extends between the upper ends of the arms of the said bracket; and such shaft, lwhich is preferably fixed, has pivotally inounte d thereon two bell-cranks 209. Coniano casin and substantially at the center- P w .v

sidering new the action of one of these eranks, the one shown in Fig. 1, the lower endof one arm 210 on said crank, is pivotally connected to a link 211, which in turn is hinged-to the free end of a pedal 2-12 This pedal is pivotally mounted at -213 upon a frame 214, which frame is of sufiicient width to properly support both the right and left handpedals. The frame 214 is pivoted to a bracket 215,- the base of which extends along thebottom of the piano casing, said bracket being also somewhat U -shaped.*

Frame 214: is preferably a casting and is I quite rigid; the sides thereof being connected by crossmembers or bars 215 and 216.

This frameand the pedals carried thereby are adapted to be rotated around into the in terior of the :piano casing in the manner" shown in Fig. 12, so that thefusual slide may cover the aperture in the frontof the piano through which they have passed. The bellows 200 and 206 are each substantially of the usual construction, being each provided with the usual spring 217, which normally tends to maintain its bellows closed. The upper arm 209 of the bell-crank is connected to an operating arm of bellows 206 by a link 218, and the lower armof said'crank is correspondingly connected by link 219 to'the operating arm 220 of bellows 200. As these bellows-normally tend to remain closed under the action of their respective springs, it follows that the bell-crankin question normally tends to return to the position shown in Fig. 1, which obviously throws the pedal 212 to its outermost position. As stated, the

pedal mechanism is in duplicate, there being of eoursetwo sets of links 211, 218 and 219. The points of connection of the several parts ba foresaid bear""-"suh"relationship to each othei that as the pedals desc nd; toggle actions' 'o'ccur, link 2 18 and the upper arm" of the bell crankforming one 'toggl'e and link 219 and the j'lower'arm of'saidfcrank forming the other toggle; thisflatter toggle being straight when the parts are positioned as showniri Fig. l, a nd"broken; when'the pedal-212is depressed. As' the result" of this, and my. '{pe'c'uliar disposition of pivotal connections, as the; pedal 212 is moved downward-through {theffi'rst quarter of its stroke? the low? pressure 5 bellows 206 i's' distended practicallyto its' limit'; its operating arm' having butflittle 'fa'rther jdistance to travel before *it reaches I ,the end? of its movement; While 'this "has 'been taking place, bellows 200 has been"distended'through about onethird of its movement -'The above action is diagrammatically indicated in Fig'L 13, where the initial-position of the'point of connection between link-219 and arm 220 of the bellows is indicated at 22l,"'its final position being indicated at 222, and its position when approximately one-third "of its travel has been accomplished, being indicated at 223. Correspondingly the point of conn'ection'to bellows 206 at the beginning of its "stroke is indicated at 224, and its position after the pedal has descended one-quarter of its stroke is shown at 225, the distance between points 224 and 225 being very nearly the entire travel of such point, the limit of movement being indicated at 226. In corresponding fashion,when' one-half of the stroke of the pedal has been accomplished, the high vacuum bellows has distended about twothirds of the full amount of which it is capable, while the low vacuum bellows 206 has not materially altered its volume.

At the end of the third quarter of the stroke'of the pedal, 'th'e'high vacuum bellows has reached approximately tl1ree-quar tersiof its possible distention, while the'low' vacuum bellows 206 has actually begun to 'retrogress, the vacuum-therein being very :slightly reduced; Finally in the fourthvquarter of the stroke of the pedal, the high vacuum bellows is distended to its fullest ;extent, while the low vacuum has been re v -duced approximately thirtyf'per cent. As a resultof'thisaction, it becomes possible to nicely adjust the degree of vacuum in Eth e respective conduits, since if thefpedalsf gbe -operated' only through the first: quarter oftheir stroke, the conduit 15 may actually ihav'e the higher vacuum, while by pedalingv Ethrough the half stroke, the degree of ivacuum in conduit 14 is correspondingly lincreased,and finally by pushing the pedal down sharply through three-quarters of its throw, or if 'needtberitsentire stroke, the idegree ot'the 'highlvacuum may be made irelatively' very high asv comparedftojthat of the low vacuum? This permits" one imore notes .wl1ich' may havebeenl lected, by either" the nianually controlled, maths-f E i-e r j f flii e eiaee eted; with great vigoi faifeatur'e wliichdia sbe'e'nj ghithe'rto substantially una' :coinplish'able12. gMy novel 'Va'cmim Zprod uc ing "means and selective mechanisms hence cotiperatejtofa' ;ford practically'absolute control oftlieiiieg l iister, and it becomes possible. thereby; to eithermanually or automatically select ggiven' note'--'or notes in thejr'egister and "to laccent the same with"'any desired idegreeff ;:o f intensity, as compared to the remaining fno'tes of a'chordr Thus a chord mayfc'on- Zsist of ten notes, 'and;it may-be desiredt'o' Efa'ccent one, two, threeor more of said.notes', gand'such notes may be ac( :e nted eitherat" the will of the pe'rformeror, themechanisnif" fwill automatically select them with out 'th e iperformer, who then'has means at his dis ;posal for making the' notes stand outfro'm the back ground formedby the remaining fnotes of the chord as sharplyas he"may jdesire. Furthermore, such degree offad' 'cen tuation can bevaried through'as great ian extent as if the keys of the instrument had actually been played by hand. This" I- believe marks a most "decided advance over any expression device which has heretofore been produced, inasmuch as in devices for this purpose as heretofore constructed, the notes to be accented have been accented with a substantially invariable proportional degree of intensity of tone over the remaining ,notes simultaneously; struck. For example, if i a chord of six notes he struck and one note be accented, the force with which such note will be sounded will be, let us say, twice that of any of ,the'remaining tones; but it'cannot be 'made three times 'or four times such amount at will, as candon'e by inea ns' Iofj' mechanism constructed in accordance with my invention. p ,5 It is obvious of course that my invention, readily adapts itself to extension. For'ex lib H n aratelyacoented anywhere onthe piano, 1n-

apertures properly,

' as seven steps instead of s'ix,' :and this-together with the liiiitial position affords a total of .eight distinct positions into which the, cylinder 5.8Jiiiiaybe rotatedFand eightinto which @it -:r'n'ay. ibe translated, 7 :If I now the 5 note sounding pneumatic's Elie, arranged in groups *o'f'two instead zof'iii' groups of three, and the stepdf;,r,0tation; advance eight [notes at .aftime,,';-instead,,bf ten, ,as above described, the; cylinder 58 be; r sp di elle 'e t n le port apertures insteadfdfgthree the entire range the", eighty-.ight jf tiots l: of. ,a ,piano canfbgdo'm'iiiated rasps .Yo'f two, and; heilit fi afii fil x"i sr s b -.j 9ui s y; U enemas PH%W w teases-spas s, QWEQll aF E L-fQFL ve aQt a -a'pi St l permit'fc'if the nt" operated; from .the 'liig yacuuin the a .;.-Q isnesin h si e e;newss an sa e-et eas ss i e di s at 's may: beltaceented addition .to the I notes, S ab octaves being idoiriinatelhkfliirs r,

a-s e art i ots.

semsi-fhe Wiese i Is i I P aPe weeti e- 'sa ds W m b s rd m net it sl-lnh ali s s a r ip "ii i9, illev li aadd tign chr m ir -ilisr ete s ets i as s egfl y and a ter-(t n ssz-i esi s fi x ly e1-.-- deyoting ifour of the translation movements ordsteps to th e disp osition of the octave, apertures jusbdescribed, ,qctayes be sep- 3 termediate .notes Qbetweeng the .octave-spaoed notes not being accented. yalye cylinder Of this de s i n has a e: he-re n F i fle-g fi ap u es ei ade si nated QQLLthe .octave spaced,,p0rts .228 the siirteen note ,slot 229;,and the corresponding 5 thirty "and forty-four note slots being merged into .a sloping sided aperture, the oblique walls of which areshown:at 230, the number of thirtyports, for examplebeing uncovered' when the cylinder has been translated vto 1a positiomavhere the line of ports coincides with the line indicated 1 at .231. This sided arrangement of slot "possesses certain advantages over the slot formation shown in F igPZ, especially when the device .is being manually operated,.since then the :chromatic groups may comprise any number of notesiinstead ofcertain pre- "determined numbers If fivecontrol pneumatics be used upon each side, namely of units 1, 2, 3, 5 and 7, the control automatically exercisable over the instrumentjs practically perfect, as the summation limit is 'in this-case, 18, which with the initial position, or position in which no pneumatics are or vhave have been in use, makes the total of 19 steps of translation and correspondingly 19 of rotation. V

I wish to state here that itis not essential that one valve member be stationary, the ;other being both translatable and rotatable; since in some cases it may be desirableto rotate one member and translate theother; and in fact rotation of a given member may be dispensed with and a secondtranslation movement substituted therefor.

Having now disclosed the particular construction of the above embodiments of my iinvention, what I desire to particularly jpoint out is the-results which may be obitained by the use thereof. In the firstplace,

@by varying the relative degrees of vacuum iin. two independent systems, throwing such lsystems either at will or j automatically into icpminunicationwith the exhaust'frcm note itomary to modulate the intensity of tone in.

pianos by employing a felt strip or curtain Ewhich is made capable of being depressed :and interposed between the hammers and lthe strings. The use of such a curtain pro- Educes a peculiar tangy quality'in the notes struck and the timbrekis materially altered.

'YVhen this device hasnot been employed it lhas been customary particularly in the" iplayer piano art, to employ some device for llifting forward the hammer rest rail, or a section thereof, or the hammers themselves, so that such hammers traverse a consider- !able less are when actuated, and thereby :produce softer tones. This expedient is, however, also objectionable, although probably not so much so as the other, in that the tone action is impaired and the timbre materially changed. This may be clearly demonstrated by still further shortening the stroke of the hammers, when even to the most unpractised ear, the thud-like quality of the tone :50 produced will become apparent. By permitting the hammers to traverse the entire length of their stroke and merely altering the intensity of the blow delivered to them by the pneumatic, it becomes possible to maintain the timbre unimpaired while altering the weight or intensity of the tone. -Y

My invention permits of notes being accented individually, picking out one note at the time no matter; where it may occur, or a group of notes may be similarly accented,

ually, when he so wishes, by manipulating a single lever or handle, preferably by the left hand, and when he desires to allow every tone struck to stand out in equal degree, it is merely necessary to press inward upon said handle to the full extent of the throw.

My companion application sets forth means for operating a loud pedal pneu matic from saidhandle, or such pedal may be operated from theusual leveror. button, or it may. be.,operated by proper perforations in, the. rolls, adapted for cooperation with a port in the tracker which may con trol the loud pedal'pneumatic through the usual valved appliances. My-invention enables a quite inexperiencedtperformer -.to play a piece of music -fwithproper expression. r flIn the arrangement ofparts as .hereinset forth,. the accented notes may bein number; approizimatelyone half ofv the ,whole number for which the player is adapted. j Thus; if; an, eighty-eight note. player; he .used, the: de-

vice may be made to accent forty-five motes consecutively keyboard. p By increasing the controllingdiaphragms from, thirty to eighty-eight. in number .andcorrespondingly increasing the number. of cooperating parts, where; necessary, .it is pos:

sible to, compass the entire register individually. instead of in groups ofthree.;; iFurther the configuration- -o theslottedflvalve controlling pylinder and ,the-number of operating ,pneumaticsmherefonmay be altered to, attain any 'grouptarrangement,desired. I find h wever that-gthedevice as; shown affords sufiicient control for. all practical purposes and ,having relatively. but few: and, inexpensive parts is not costly of manufacture.

In certain of theappendedgclaims Ihave sought to broadly set forth the-novel construction employed to attain the varied control over the note sounding parts, whereby not alone may they be accented substantially scriatz'm; but a number of notes may be accented, practically wherever. desired, and this number may be widely varied.

In the particular construction herein described, this is largely due to the manner in which the cylinder 58 may be moved. It is obviously rotatable about its longitudinal axis and, further, is mounted for movement of translation in that it may be shifted bodily non-rotarily, as it happens in this particular case, in the direction of said axis. These movementsmay be combined so that a screw-like movement is imparted to the cylinder; this movement being either right or left hand as desired.

I do not wish to be limited however to a construction such .as that shown in the drawing wherein one and the same part has both rotary and .translatory movements imparted disposed anywhere along the thematic effects to be to it; nor indeed to these particular movemoved in diverse directions, since the word diverse-impliesbeing essentially dissimilar, and simple reciprocation in one line does not involve essentially dissimilar movements or directions of movement. I

What I claim, is: s '1. In an automatic musical instrument, a

plurality of note sounding.parts,forceapply-- 'lng elements-cooperating with said parts, the

intensity of the forcekwhich: said elements vices for varying said: intensity of force, to permitsolo. or thematic effects to be prodnced, and automatically operating means,

for controlling said devices, said means com-- prising a ported member anda port controlling member one of-said' members being movable-in one direction and one of-said members being movable in a direction di verse to that just referredto, and means for effecting said movements.

V 2. In a musical instrument, a plurality of note sounding parts, force applying elements cooperating with said-parts, the intensity of force which said elements arecapable of exerting being variable, .devices-;f0r varying said-intensity of force, to permit solo and cally operating means for controlling-said devices, automatic indicating means for in-- produced, automati-v are capable of exerting being variable,yde 5 dicating the notes selected for accentuation- I by said operating means, and connections between said two means for actuating said indicating means in correspondence with said means for controlling said devices.

3. In a musical instrument, a note sounding parts, force applying elements cooperating with said parts, the intensity of force which said elements are capable of exerting being variable, devices for varying said intensity of force, to permit solo and thematic effects to be produced, automatically operating means for controlling said devices, automatic indicating means for indicating the notes selected for accentuation, connections between said two means for actuating said indicating means in correspondence with said means for controlling said devices, a manually controlled part adapted to co-act with portions of said automatically operating means for manually controlling accentuation when desired, said connections between said means being operative for both the automatic and manual control of accentuation.

plurality ling the aceentuation=of'notes, -said device- 4. :Inamusical instrument, a plurality of note sounding parts, force applying elements cotiperating :with said parts, the intensity of force which said'elements are capable of exerting being variable,-=devices for varying'said intensityof torcef to permit solo and thematic eifects to be produced, and' means for :controlling said -f devices, said, means comprising a member the disposition of which-determines thei i otes selected for accentuation, means'- .cWactingQWv ithK said member for 'selecting said 'not'esfia group of co-acting, independently controlled instrumentalities for positioning "said membe'r in any one of a plurality of positiorig and a second group of co a ,tin'g,= independently controlled instrumentalities {tor positioning said member in any eraser faiplurality of -po- '1 sitions substantially difi'ernv'from thepos 'i ti'ons above feferred as. f 1 i=f5. ln a musical iii-stamens;plural ty/er note sounding parts;"force a piyin "-elei-l ments cooperating with said parts", t e "-intensity of -force yvhich said eieaints are;-ca'- pable'of exer' ting fbe'ing variabl'e, pneumatici devices for varying -smd intensity {6f f itorce, tblpermit 'solo and thematic'efieets to 'pro duced'; and sele'ctive mechanism for control ling said devices comprising a portd'ineing ber adapted for cooperationwvith aipe rfo rated mu; said portedv'mei'r'iber lh'aving a groupgof ports eurrespo dingqa the: number of force applying=eleme1its aindmaving also auxiliary ports the {num rdffw liichfis relatively small as eom ared 'to saidi group 6J 'In mus1cal, instruments, aseries of note sounding parts, "-'aotuating mea "f id;- 1

parts,- and 'an 'eXp'ression-device for controlcomprising a rotatable and translatable membem and mechanism-for rotating and translating such member. f n

7. In an expression device for automatic and semi-automatic instruments, accenting means comprising a series of movable 'elements," a selective appliance cooperating therewith, said appliance -having means for effecting a sequentialdisplacement'of elements in said series, means for'varying the number of said elements simultaneously displaced,- and mechanism 'for controlling the aforesaid two means of said appliances, said mechanism having tWo parts," -one of which eontrolsone' of said means and theot-her of which'controls'the other of saidn1eans,*saidparts being separately as well as jointly movable, a separate movement of only one ofsaid parts substantially affecting only the disposition of the means controlled by such part.

8. In musical instruments, a series of note zsounding parts actuating means for said parts, and an expression device for control ling the 'accentuation of notes, said device comprising -two co-acting members, one of said members being rotatable, one of said members being translatably mounted, and

imechanisin-for rotating said rotatable member and for imparting a movement of trans- .lation to sai d translatably mounted member. 9. In musical instruments, a series of note sounding parts, actuating means for said parts,and an expression device for controlling the accentuation of notes, comprising a lrotatable and translatable member, and imechanism for rotating and translating such gmember', said mechanism comprising eleiments -whereby the member may be conitrolled eithermanually or automatically.

; r 10; In musica1' instruments, a series of lnote sounding "parts, actuating means for \said parts, and an expression device for con @trolling the accentuation of notes, comprisling -'a-member having an aperture therein lmovable both longitudinally and laterally iinto'apposition with any portion of a predetermined area, and means for shifting" isaid aperture both longitudinally of said larea and'laterally 'With respect to the-line of suchlongitudinalmovement. 11; musical instruments, :1 series'f'ot mote sounding parts, actuating means 'for said parts, and'an expression device for conitrolling the aceentuation of'notes, comprisiing a valve member and a cociperating ported gmember, one of said members being movable with respect to the other in a plurality'of different and divergent directions, and mech- 'anism for moving; said member in said diflferent and divergent directions.

.'12. In musical instruments, a series of :note sounding parts, actuating means for such parts, and an expression device comprising a ported structure having a plurality of ports therein, an element having an aperture therein adapted to co-act with said ports, said structure and element being mounted for relative movement t-iicrebetween in at least four different ways or directions to permit said aperture to be variously positioned with respect to said ports, means for effecting said relative movement whereby to variously position said aperture with'respect to said ports, and means whereby't-he relative disposition of said aperture with respect'to said ports controls the relative tone values produceable by said note sounding parts.

13. in musical instruments, an expression device comprising a member mounted for oscillatory *movement, a member mounted for rotation and also for translation in the direction of its axis of rotation, and means mounted upon the instrument for effecting theengagement and disengagement of said members.

14. In musical instruments, the combination of an expression device having means for selecting for accent-uation various numbers of notes at one time, a tracker, music roll holding means,-'devices for' indicating the relativepositions of notes which are accented, pneumaticj means for operating said devices, andeonnections between said pneumatic'nieans and said selecting means.

15. A pneumatically operated musical instrument comprising material disposed to form a series of'cells, a" plurality of conduits having ported connections'with said cells,

and pneumatically opera'tedmechanism 'for placing variable numbers of said cells into and out ofcommunication with Zone of said oa U, 0 o i l conduits, said mechanism-comprising a port leontrolling device and means I for mounting said device for-movement in"a"plurality of di 'y y =1: 2 to -,'::.-i3 csan.:. 16; In pneumatically operated musical in struments having tone'soufnd'il'ig mechanisms controlled by a perforatedfm'usic roll, an e2;- pression device comprising aseriesof valve parts, and acont'rolling devicetherefo'r having aselementstherepf a ported structure and ia single 'coijperating- Tnei nber',- both-of which are distinct" from said perforated roll a Ild: oneof which partsfs movable wit-h' 'resp'ectto the other, a determinably variable number of said walve'parts being displaced andset apart "from thef rmaining parts of said &series in accordance-with such movement, means contr'olled by said niovable'part for displacing va'rie'iblenumbers of s'.aid valve parts in manner aforesaid,"saidvariable number being of any desired size and being displaced whenevendesired in said series in accordance with there'lative disposition of said member to saidstructure, and means for automatically effectingthe desired relative disposition of said'membe'r to said structure. i I i 17. A pneuniatically operated musical instrument comprising material arranged 'to form a series of cells, a plurality of conduits having ported connections with said cells, and pneumatically operated mechanism for placing variable numbers of said cells into and'out of communication with one of said conduits, said mechanism including a port controlling device movable in a plurality of diverse ways and meansfor moving said device in said diverse ways;

18. In musical instruments, means for sounding a chord the tone values of the respective notes of which are of varying intensity, comprising note sounding devices, operating means therefor, and means for regulating the intensity of action of said note sounding devices, said last mentioned means including material disposed to form air ports, a plurality of controlling members for said airports, and automatic mechanism for displacing said members with respect to one another in a plurality of div'erse directions.

' 19.In musical instruments, means for sounding a 'chord the tonevalues of the re spective" notes of which are of varying in-' tensity, comprising notfe sounding devices, operating means therefor,' "and"means for regulatingf the intensity 'of-a'etidn of said note sounding device's," said last "mentioned means involving aplurality of cooperating members, and means for displacingo'ne of said members with respect to another of the 'samef'one" of said 'members being provided with a 'series of ports and "an'o'therrof said members having means for opening an intermediate number of said ports in fsaid series-while ports' 'uponfboth sides of said intermediate Illlll'lb l re cl'o's'ed; said means for'i'e'gulatin'g' fth'intensity!bf action oe' said new sounding devices I further comprising provisions for autom";a,ticall'y 'var'ying said iiit'rmediatenumbei ofpartsi; i 2051a musical instruments; means ""196: sounding a chord the' t'o'ne yalues' fof therespecti've notes of which'are"of"varying intensity, comprising note. sounding) devices,

operating means' there'fofland means for regulating the intensity of action "of said 'ifote' "sounding de'vices, said last mentio'n'ed means including plurality o f'coeperating members, means' for d-ispl in'g one I of isaid meshes with respect tojan'other 'of i the same; one of} said members 'being"provided with 'a' Z series of ports and {another o'f'fsaid memberslia'ving means for opening an intermediate "niimber'of said ports ins'aid series 'whileports upon bothsides offsaid intermediate'number are closed, and unitary means for varying said'interme'diate number while lnainta'ining' -the' substantially central port of "such intermediate 'number in its "previous position with respect tothe remaining ports of the series when said last en'tioned means alone isactuated.

""21. In' musicalinstruments,thee mbination of-jtone sounding devices with an expression device including a series of valves, automatic valve controlling mechanism comprising a structure positionable for selecting for actuation, within predetermined limits, an intermediate number of said valves, said number being variable as desired, said variablenumber to' include' as an element thereof any desired or'indicated valve; in saidseries of valves, said mechanism 'further'including automatic means for moving said structure, and'means for actuating the selected valves.

22; In musical instruments, a plurality of noteisounding parts, operating mechanism therefor, tone intensifying"means comprising elements ,cotiperatingrwith saidh mechagreaterthan two, said automatiomeehanism including 5 a perf ora tedg roll and a trac ker a ete ieeen geei elia itesa sl salt-a x: 1ers; mi me eallyd nemble amiss-tempt):

s t atlase -to of id; elemen s-m y one o f a nmnber-of positions said ni mber a s b i gsere tr hemtnnfinhee des r d, a d-m n ,ier s dn e rg em aut i gsseha i by a flaw-m: m n y no m ted' -en at gipe meansqm-u-mf 1 flee es, naeeme e aprliapee fen-a tuatin a-id-tderiseaw ja rsexhe sting me n .tie i esr ai ssaii apnl aep seaidt a rais ng aqniueali y [9 ineenaadeem wum ystsmsaeaqh hsv egt twmaieierarefy a means, aera ngseen s idvrsslat ssimi a es 'rifl g aasrrare y ea srmmp s egc-Antenna -im tat d;t at port-ions -of tlit t sfie ta greatenemamee effieee-e rrr re ye am resathav atlea aef aane he nstasaid me esrwtu w -her ep eizsa dvstnet will iefi etmwhaege in theirs" re ember neve e ntsat resaas aedise gtee me hangsentowp eplng ald meemeee epnhwess asi eiem teifiaav emthaoneilar fillifllfilq 9t:@ d) l-%W[ y ems" [out an pm ti it-il mneannnslawnen is not swirl ng Aeneas, rnel ma e npham aiipr uat n saisizderi esie l-sainssl aust smeansfor pe ti gvse d app nsefi sa i mea 9 prisii eiasrlu a yt fee .eeendgn vacuum sys e r e ha i g; i enaia er r eaesfla p t-ani imsehaeisieiwhe y t me em nt E 2 a pes1 qW lL= e fect: th a atiwwfii lie; hetmesne ire y ems eiere ii de ai ee-Lee amlzse: lective mechanism for p lage ngglsaid tpneu: ma e-appl an iee m nie tmm w th one 0. ?enethen,otsa dfyscwmsy s 7' 25. In musical instruments note sound e idet eesirneemat i rp ieeees for a ating ,said gdevfices,, and air; exhausting: means fgrqgperating said appliances, said means comprising a pluralityofl independent. yacu; um systems, eagh haning itsown air-raretym ans, :a pedata te eatin m hanism whereby-the movement pedal willefiect the rarefication oat ain-(inthe re p c -i es s m ei iJei ifieF Q and se ectiv z e w r r e ng eaidip w etie epelianee ini m i with one or, another of said yacuumsystems. 2 -,ele aaneeum eelly; op rat d me iwl instrigment, a lseries' of, ,no te .gsoundin d nices, a series of appliances; for, directly. ac ea e-sai d ise aeirfeesi n d vi a said aux li y:

een giensnhstvee a rQ lsqisfiaidwpfii'tsaand means for k wafinseiiing lzwill comprising azseries of movable elements substantially corresponding to said series of note ,sounding devices, selectively acting means for effecting the movement of certain of said elements whereby the corresponding notes may be accented, foot pedals for actuating said instrument and means controlled by saidpedals forvaccenting said notes in -\farying legree$ ascompared to the remain :ingi sypohrqnouslygsoundednotes'of a chord.

21:; An expression device for musical instruments comprising a plurality of movable .eleme'nts a qported cylinder, and a nippled cylinder-:cooperating therewith to control said.el ements,,said cylinders being disposed about a common axis, and one being revolui- 1 5 a. .i Y l blewvith'respect-to the other. s ln u ica nstr ments, n misa esi n i ,28. An expression device for musical instru nents comprising a plurality of movable elements, afseries of parts for moving said elements, ;pneumaticz means for actuating 5. m PeEtSna member mounted for rotation and also; for -translation, means cooperating jwitlrgsaidhparts; whereby the rotation and translation of said member controls the acrotating an' ransla i g s 2%,;An, expression device for musical in-. struments' comprising a plurality of movable elements wa seriesfof parts for moving saidelements,-v a substantially fixed member andfa ,membernmovableintwo ways, a point par riedmy saidmember being variously positionableywithimthe limits of a predeter gnined -surfacekmeans whereby the position pipa rtsfofisuch member with-respect to said fixedfmembergdetermines the relative positions of saidf movable elements, and pneumatictmeans controlled by said member for actuating, said parts and thereby said elements in. manner aforesaid. I .Y ;3O.,;,A,n; expression device for musical in struments comprising a plurality of movable elements a series of parts for moving elements, a plurality of members, one ofg said members being relatively I movable withrespect to another of said members, a point carried by one of said members being yariqusly positionable within the limits of a predetermined surface, means whereby the position of parts-of such member with respect to another ofsaid members determines the ,relativehpositions of said movable elements; said means including pneumatic connections eontrolledby said member for actuating saidpartsg and thereby said elements in manner aforesaid.

3 l.l In-an-expression device for automatic instrument-s, means for effecting a relative difi'erencein intensity of tone-between notes sounded byan. instrument, a controlling device ion-saidmeans, said device comprising a plurality, pf,parts relatively movable with respeetg tb each other, means for effecting in one direction or in the reverse of said direction, and means for effecting step by step movement of one of said parts in a manner at variance with that of either of the movements aforesaid.

32. In an expression device for automatic and semi-automatic instruments, means for effecting a relative difference in intensity of tone between notes sounded by an instrument, a controlling device for said means, said device comprising a plurality, of parts relatively movable" With eSpect to ;each other, means for efi'ecting stepby step movement of one of said parts in one.direction, and means for effecting step by step movement of one of said parts in another anddiverse direction.

33. An expression device for automatic instruments comprising a plurality'of pneumatics, an element movable by the actionof said pneumatics in a number of directions, said number being greater -than tww and locking: means disposed, for iengagement with said element, said ,Ineans adaptedio hold said element substantially ;agai nst movement when the latter ,isinany. .one gf a plurality of p tionsat;

34. In musical apparatus, adjustable means for varying the 'accentuation at, ,differentpoints of the musical scale, ga poweractuated device 'having-a plurality 'of, separately-actuable sectionsfor moving-said. gadj usting. means, means foihcontrolling {the actuation, of,.said i sectionsi in; yario is, combinati0ns;:to ,etfect different adjustments of said actuating means, and pneumatically controlled means .for holding saidiadjusting means, against inadvertent di sp lacement when setfor a given accentuation, 35. In musical apparatus,.,.,.adjustable means, parts of which are,,relatively' d isplaceable with respect to. each other in a plurality of diverse ways, forivaifying the accentuation at difi'erent points of Qh em usical scale, a plurality of power actiiated idevices each comprisinga plurality of sepa 'rately-actuable sections for operatively setting said adjusting means, one of saiddevices adapted to displace one of the said parts of the adjustable means in one 'Way and another of said devices adapted to dis place one of said parts in another ofsaid di erse ways, and means for controlling the actuation of said sections in various combinations to effect difi'ere'nt adjustments of said parts with respect to each other. I

36. An e'xpremion device""'for' automatic instruments comprising a pneumatic, anen gageable element movable by the action of said pneumatic, frictional retaining means disposed for engagement with said element and adapted to hold it against inadvertent displacement, and pneumatic means for controlling said frictional retaining means.

37. An expression device for automatic instruments comprising a pneumatic, an engageable element rotatable about an axis by the action of said pneumatic, and clamping means disposed for engagement with said element, said means adapted to operatively-engage said element when the latter is any one of a plurality of positions into which it may-,have been rotated.

38..An expression device for automatic instruments comprising a pneumatic, an engageable pivotallymounted element movable rotarilyby the action of said pneumatic a; brake disposed for engagement with said elenient, and means for releasing said brake prior to the actuationof said p u at c- ,39. .In player-pianos and the like, note sounding'pneumaties, a. tracker having apertures therein adapted for co-action with a perforated music. roll, means connected to said pneumatics for-controlling the respective note, sounding- .pneumatics, auxiliary neumatics including a. brake pneumatic, connections ,between said tracker and said auxiliary pneumatics, accenting means ;controlled by, said auxiliary pneumatics, and means adapted to; 'co-action with said-brake pneumatic; for, ,clamping a part ,of said accenting; means against inadvertent displaceme .40.. Iri musical instruments the playing of which is controlled -by a music roll, a series eia t S undin en saae s means for p'artsrcontrolled. by said musicroll, and an expression device for controlling the accentuationof notes, comprising a rotatable and translatablermember, and automatic mechanism also controlled by said music roll for rotating. and translating said member. o ,musical instruments, note sounding devices, pneumatic appliances for actuatingsaidfievices, means for operating said appliances. comprisinga plurality of substantially Iindependentsystems, each of said systems havingits own air pumping means, a pedal, andconnections between said pedal and parts of said air pumping means Whereby one portion of the stroke of said pedal effects a difte ent o perative.i'elationship between two ofjsaid air pumping means from that efi'ectediby another portion of said stroke, and .se ective means for placing said pneumatic appliances in communication with one 'or another of said systemslf 42. In musical instruments note sounding devices, pneumatic appliances for actuana mia "devices, means for operating said appliances comprising a plurality of substantially independent SXStEmS, each of said systems having its own means for varying the pressure of the air in the parts thereof, a pedal, and mechanism whereby the movement of said pedal will efi'ect a variation in pressure of air in the respective systems aforesaid in difl'erent degrees, and selective are mechanism for placing said-pneumatic appliances in communication with one or'fan'- other of said systems. I a j 43. A pneumatically operated musical'instrument comprising material disposed to form a series of cells, a plurality of conduits having ported'connections withjsaid cells, pneumatically operated Y parts for placing variable numbers "of said cellsinto and out of communication with one of'said conduits, and mechanism l for {controlling said pneumatically operated-parts compris ing a port controlling "device ""aiigil means for mounting said devico' for nrovement in a plurality of diverse ways. 5

44. A pneumatically operatedni siiilinstrument comprising materi'al' dispbsed' to form'- a series of cellsf-a 1 plurality: of conduits -havi'ng ported connections -cells, Y pneumatically l opera't'edpaitsfi'for pla ing variable numbers of sa'id tells into andout d-"communication {with onjm'f said conduits, and me hanismio watmuing said pneumatically o erabeaaparts ine1fiding a port or'itrollingfieviiie' iiiovab'le a plurality of diverse' way's a n'dmeans for moving said device'in said'di-v'ei'se j Ways? -45; In pneumatically-fopeiatd laiiieai iifi struments having tone"Sounding mechanisms controlled by a perforated music roll- 2in e pressi n devi' iiiiipr'i ingai seii 'y valve parts, and eoiitroll'iit'fdvice were for, havinga's'-; element s' iltlleredf ii piiited st'ructjl re and "a 1 single cooperating botli o'f which are distinct from said era)- rated 1 011 and one; at which arts" 1 a blawith respectto the o r ,a""i1et r minably" variable f nn'tiiber Y of said valve parts" being displaced arid set' apart'froni the remaining parts of saidseries in accordance with suchmovement,iiians. con trolled by said movable partfor fdisplacingf' ifariable numbcrsof said val've parts in manner More: said, said variable-numbers be'ing ii f any desired size 'and being displaced"whei'ever desired in said series in -'accordai i'ce witli'the relative disposition of said meniberfQto said structure, and automatic indicating mecha; nism for rendering plainly evident'the ber of valve parts affected at any given time and the disposition of said number"n said 46. In pneumatically operated musical: in struments having tone sounding mechanisms controlled by a perforated music roll, an expression device comprising a series of valve parts, and a controlling device therefor having as elements thereof a ported structure and a single cooperating member, both of which are distinct from said perforated roll and one of which parts is movable with respect'to the other, a determinably variable number of said valve parts being'displaced afid"-'s'et"apart from. the remaining parts of said series in accordance with such movement, *meanscontrolled by' said' movable part' 'fo'r di'splacing variable numbers of said'val've' parts 'in manner aforesaid, said variablenumber'being of any desired size and beingdisplaced Whenever desired in said series in accordance with the relative dispositioni of saidmember' td'said stri1cture, mean s"fo r afi'ecting various dispositionsofj said member with respect to said structure;-' and" separate means-for indicatmg" tHe -humber' of valve members afiected at' -;1iy$"ven"'- time;and the disposition of said r in said series.

LTIQIn pneumatically operated musical inl 'Strumentshavingtone sounding mechanisms controlled by a perforated music roll, an expressibn device comprising a series of valve pa'rtsfafid a controlling device therefor havlementsithereof' a ported structure aidi-a single cooperating memberfboth of W "icll ike: dl SfilIC t from said perforated roll and "o'iie 'of wliichpait's is movable with re- $665" 0 th f o th er, a det errninably variable rimfiber%'f"said "alve parts being displaced and'swapa'rt from the remaining parts of "said 'se'i'ies in accordance with such movement, iiifiiibbntrolled by said movable part for displacing variable numbers of said valve parts i manner aforesaid, said varlable numberbeing of any desired size and being displa'dcifwherever desired in said series in accordance "with the relative disposition of said member to'said structure, and means controlled by isaid music roll for automati- 100 cally effecting the desired relative disposition ofsaidm'ember to said structure.

I'i In witness'whereof, I subscribe my signatrim, in the presence of two witnesses.

- CHARLES P. HIDDEN.

' iWi thes'ses: v

WALDO M. YCHAPIN, JAMES D. ANTONIO.

Copies oi this patent may bee obtained 101' five cents each, by addressing the Commissioner of Patents.

.Washington,

Images