US1060235A

US1060235A - Talking-machine.

Info

Publication number: US1060235A
Application number: US30483606A
Authority: US
Inventors: Wilburn N Dennison
Original assignee: Victor Talking Machine Co
Current assignee: Victor Talking Machine Co
Priority date: 1906-03-08
Filing date: 1906-03-08
Publication date: 1913-04-29
Anticipated expiration: 1930-04-29

Description

W N. DENNISON.

TALKING MAUHNE.

APPLICATION FILED MAR. a, 1906,

Miented A111229, 1913.

3 SHEETS-SHEET l.

3 1 manto/c W. E, BBNNISGN.

TALKING MACHINE.

-APPLIGATQN FILED MAR. 8, 19064 1,(365235@ Patented Apr. 29,1913.

3 SHEETS'HEBT 2. ".3, i? Y W. N. DBNNSON,

TALKING MACHINE.

APPLICATION TILBD MAR. 8, 1906.

Patented Apr. 29, 1913.

3 SHEETS-SHEET 3.

wlrxessss.-

. I rra/ann UNTTED STATES PATENT erstes.

WILBURN N. DENNIBON, OF MERCHANTVILLE, NEW JERSEY, ASSIGNOR TO VICTOE TALKING MACHINE COMPANY, A COBJPOBATION OF NEW JERSEY.

TALKING-MACHINE.

Leanser.

Specification of Letters Patent.

Patented Apr. 29, 1913.

To all 'wlw/n, t may concern.

Be it Vknown that I, WILBURN N. DENNI- sox, a citizen of the United States, and a resident of the borough of Merchantville,

State of New Jersey, have invented certain new and useful Improvements in Talkin Machines, of which the following is a fulgl, clear, and complete disclosure.

This invention relates to talking machines of the type commonly known as pneumatic and in which sound waves are impressed upon a fluid current by means coperating with a sound record.

The main objects of this invention are, to provide an improved pneumatic talking machine, simple and durable in construction and highly efficient in operation; to provide in a pneumatic talkin" machine an improved sound box or sound reproducer, and an improved mounting therefor; to provide in a pneumatic sound box an improved valve and means for balancin the same; to

rovide ina pneumatic sound ox means for delicately and accurately controlling the flow of a fluid current therethrough; and to rovide other improvements as will appear iereinafter.

In the accompanying drawings, Figure 1 is a fraainentary perspective view of a talking mahine constructed in accordance with this invention; Fig. 2 a fragmentary central sectional view of a portion of the same; Fig. 3 a fragmentary end view of an improved sounc box forming part of this invention; Fig. 4 a sectional View taken on the line 4-4 of Fig. 3; Fig. 5 a sectional view taken on linel 5-5 of Fig. 3; Fig. 6 a perspective' view showing parts of the sinne separated from each other; Fig. 7 an end view of a detail of the sound box; Figs. 8 and 9 are perspective views of details of the same; Figs, l() and 11 are elevations of details of a modified form of this invention; and Fig. l2 is an enlarged sectional view of the parte illustrated in Figs. 10 and 11, assembled in operative relation.

liefert-in to the drawings, one embodiment of this invention com )rises a cabinet 20 upon which is mounted tlhe usual or any smta ile turn-table 21, for carrying the usual.

or any suitable sound record 22, the turntable being rotated by the usual driving mechanism (not shown), mounted 1n the cabinet 20.

Pro'ecting rearwardl and upwardly from the ca inet 20 is a brac zet 23, secured to the upper end of which and projecting inwardly therefrom is a horizontal ring or annular snp iort, 23". Depending from the ring 23', is tlie larger end of a tapering hollow sound box arm or tone arm 24, which is mounted to swing in a horizontal plane about a vertical ivot 24', carried by the outer portion of tie bracket 23 and en aging the under portion of the larger en of the tone arm. Projectin upwardly from the ring 23', and carried t ereby, is a sound amplifying horn 25, communicating with the tone arm 24.

For supporting a sound box in communication with the smaller free end of the tone arm 24, and for supplying the sound box with a fluid current, the smaller end of the tone arm terminates in a transverse tubular horizontal connection or support 27 rigidly secured thereto. The free end o the tone arm 24 is open and revisters with an opening provided therefor through the wall of the transverse tubular su port 27. Projecting laterally in opposite nections from the

ends

27 and 27 of the sup ott 27, are two U-shaped oppositely dis ose tubes, 28 and 29, the inner ends of w ich are coaxial with the tubular support 27, and the outer ends of which are coaxial with and firmly attached to the opposite ends respectively of a sound box 30. One, 28, of these U-shaped tubes forms a supply tube for the sound box 30, and the other, 29, U-shaped tube forms a discharge pipe for the sound box. The U-shaped supply tube 28 communicates with a supply pipe 31, which extends rearwardly trom the tubular snport 27 substantially parallel to the sound ox arm 24. The front end of the supply pipe 31 is open and is secured in an opening provided therefor in the wall of the tubular support 27, this end of the pipe Bl being this i with the inner surface of the support 27. The rear portion of the supply pipe 3l yis-rigi'dly secured to the larger end of the tone arm 24, curves downwardly, and termiloo nates in communication with a piece of rub-` ber or other flexible tubing'` 31, secured thereto and by .which itis "connected"` to a suitable fiuid compressor or other source' of duid supply (not shown). ,g For connecting the U-shaped tubes '28 and Q9 rotatably to the tubulary support V27, the inner portion ofthe U-shapedtu e 29, forming the discharge passage between the sound box and the tone arm, is reduced in diame ter and is extended entirely" through the tubular support 27, fitting snugly but ro# tatably therein, and held against longitudinal movement therein by means of a collar 31". threaded over the projecting end of the U-shaped tube Q9 and abutting against the adjacent end of the tubular support 27, and a collar 31 surrounding the reduced portion of the U-shaped tube 29 and engagin upon its outer side against the shoul er between the reduced inner ortion of the U-shaped tube 29 and its main portion, and u on its inner side against the adjacent end3 of the tubular support 27.

rThe inner end of the U-sha ed tube 28 abuts against the inner end of tie U-shaped dischar e tube 29, and is rigidly connected thereto j y means of a short tube, one end, 32, of which is closed and fits snugly withiiit-he end'of the U-shaped discharge tube 29, and the other end of which is o en andl fits snugly in the inner end lof the -shaped supply tube 28. The closed end 32 of this short tube is arranged between the free end of the tone arm 24 and the adjacent end of the supply pipe 31, dividing the interior ofthe tubular support 27vinto two chambers, 32 and y32, one, 32', of which communicates with the adjacent end of the suply pipe 31 through a substantially circuar opening through the cylindrical walls of the short tube 32 and containing tube 29, which registers with' a corres onding opening leadin throu h the tubu ar support 27, when t ie soun box is in operative position. The other, 32"., of these chambers communicates with the open free end of the tone arm 24 through a substantially circular opening provided through the cylindrical wall of the U-shaped tube 29 which registers with the opening in the end of the tone arm 24 when the sound box is in operative position. By this construction the sound box 30 is free to oseillate in a vertical plane-about the longitudinal axis of the tubular support 27, and also may swing laterally across the record about the vertical pivot 24 of the tone arm 24.

One form of pneumatic sound box constructed in accordance with this invention comprises (see Figs. 3 to 9) a cylindrical casingl 33, open at its inner end and closed at its outer end, and provided at"its.closed end with a projecting tubular portion 34,

coaxial therewith and telcscoping tightly within the outer end of the U-shaped supplytube'28 and forming an inlet for the sound box when the sound box 1s 1n operation,A

For spreading and distributing the iiuid current in the sound box, there is arranged ,within the casing33,and coaxial therewith,

a conical deflector 35, the apex of which faces toward the inlet of the sound box formed by the tubular projection 34. This conical deiiector is slight-ly less in diameter than the internal diameter of the casing 33, and is mounted upon a stud 36, coaxial therewith and projecting inwardly therefrom, and the inner end of which is suported by a spider comprising arms 37, projecting radially from the stud 36, and the outer ends of which are integral with or secured to a cylindrical ring 38, which tits snxIigly within the interior of the casing or filtering the fiuid curren'tl as it asses through the sound box, and for equa izing its pressure, there is provided a foraminated diaphragm 40, preferably consisting of a piece of closely woven silk fabric, the margin of which is clamped between the inner cylindrical surface of the ring 38, supportlng the deiiector 35, and the outer cylindrica surface of a second cylindrical ring 39, telescoping therein, the rear edges of the two rings being referably fiush.

The open endp of the casing 33 is reduced externally in diameter and the reduced portion is provided with screw threads 41, which engage corresponding internal threads of a ca or cover 4Q. The ca or cover is provi ed with a cylindrica tubular extension 43, projecting outwardly therefrom, coaxial therewith, and of less diameter than the cap, and which telescopes ti htly within the U-shaped discharge tu e 29, forming an outlet for the sound box.

For impressing sound waves on a tiuid curcent passing through the sound box, there is provided a fiat circular valve seat 44, which 1s arran ed coaxially with and in a plane perpendicular to the longitudinal axis of the sound box, and between the diaphragm 40 and the inner surface of the cover 42. The marginal portion of this valve scat is clamrped in an annular internal groove provide therefor between the sound box casing 33 and its cover 42. The valve seat is held in a predetermined positiony with respect to the cover by means of a positioning pin 45, projecting through and rigidly sccured to the valve scat and engaging in an opening 47 in the inner side of the cover, and the valve seat is thus prevented from rotating with respect to the cover as the cover. is being rotated into position upon, or is being removed from, the casing 33.

The valve seat 44 is provided centrally with one or more openings or ports. Vheii a plurality of ports are used, they may be in the form of a series of parallel narrow slits or openings 5l, which preferabl extend over an area somewhat greater tian the',n

transverse sectional area of the opening through the tubular extension 43- Jforming the outlet of the sound box, for a purpose hereinafter explained. f 1

Coperating with the valve seat 44, and between the valve seat and the adjacent in.- ner surface of the cover 42 of' the sound box casing is a valve 52, which is actuated by a stylus bar 50, actuated by a stylus 50', which engages in the usual socket 62 ef the st vlus bar and which is held in place therein, as usual, by a set-screw 62', and which coperates with a sound record 22, as described hereinafter. The valve 52 is preferably in the form of a thin, flat plate or sheet of metal, preferably flexible, in which is arranged a serie's of slits or o ieninefs 53, similar to the openings 51 in the vave seat 44, and so arranged that when the valve is in operative position the bridges'between the openings of the one register with and normally cover the openings of the other. To provide a suitable space to receive the valve and the stylus bar, the inner surface of the cover 42 is provided with a shallow recess or depressed ortion 42, adapted to receive the valve, an in which is located a recess 48 extending radially with respect to the cover and adapted to receive the inner end of the stylus barO and communicating with a radially extending opening 49 through the cylindrical wall of the cover, and: through which the stylus bar projects. outwardly from the sound box casin For securing the stylusiar 50 to the valve 52, the valve is preferably provided with a lug 54, brazed or otherwise secured thereby, and rovided with an a erture 55, within whie the inner end of tiie stylus bar 50 is snugly fitted and also secured y a set-screw 56 extending through the lug andengaging the .stylus bar.

The stylus bar 50 is mounted to oscillate upon a tension spring 57, which passes transversely through the stylus bar and which is provi ed at its opposite ends with ears 58, which are secured to thc valve seat 44 by means of screws threaded as at 59 into the valve seat, thus securing the spring 57 to the valve seat.

To prevent displacement of the valve in its own plane, there is attached to the valve seat a screw 60, which passes through an opening GO provided therefor in the vulve, and to hold the valve yieldingly against its seatthe screw 60 may be provided with a head and a s ring or rubber washer 61 may be interpose between the head of the screw and theouter surface ofthe valve. When the stylus bar is oscillated by coperation with the sound record, the valve will be flexed between the tension spring 57, upon which itis mounted, and the outer end ot the valve, the flexed portion being slightly lifted from its seat and )erniitting the fluid current to pass through the valve. 'lhc screw 60 and washer 61 may, however, be dispensed with and the valve he permitted to vibrate freely upon the tension spring 57.

In the above described construction the inner surface of the cover 42 is spaced from the opposite outer surface of the valve 52 only a sufiicient distance to permit of the free oscillation of the valve, and to provide a narrow passage for the fluid current between the valve and the wall of the cover. In practice the distance between the valve and the adjacent wall of the cover, when the valve is in contact with its seat, is preterably only about 3/1000 of an inch. The ohject of this construction is to trap air pass` ing between the valve and the cover to form a cushion for the valve, thus obviating the use of springs or other mechanical devices for balancing the valve, the construction of' the valvev seat, valve and other parts of the sound box being identical in other respects with the construction hereinbefore described.

Instead of forming the openings or ports in the valve seat and valve, as hereinbeforc described, concentric openings may be provided in the valve seat and corresponding concentric o enings provided in the valve, so that the bric ges between the openings in one of these members will cover the openings in the other me'iber when the two members are in operative position. (See Figs. 10, 11 and 12.)

In the operation of any of the several forms of this invention hereinbefore described, .air or any other suitable fluid is conducted through the flexible tube 3l', supply pipe 3l, chamber 32 and curved supply tube 28 into the interior of the sound box casing 33,where the air impinffes against the convex surface of the conica deflector 35, by which it is spread and directed toward the cylindrical wall of the sound box casing. The air then passes between the cylindrical wall of the sound box casinar and the outci edge of the defleetor and is delivered radially inwardly against the diaphragm or screen 40, striking the outer portions of the screen first. The air then passes through the screen 40 into the openings or ports 5l in the vulve seat 44. .l`he deflcctor 535 therefore acts in coperntiim with the screen 4-0 to insure u unilorni dis` trihution of the nir through the ports of the vulve seat. It some such provision were not made for spreading or distributing the air in the sound box, the air would inipinge directly upon the inner side of the valve seat and would pass through the various openings in the valve seat and valve :it varying speed, more air passing through the middle of the valve than through tl1e-.outer portions thereof. After passing through however, passing through the space between the valve seat and the valve as the valve is oscillated and flexed, and around the niargin of the valve and between the valve and the inner surface of the cover 42. The portion of the aii which passes through the central portion of the valve will continue directly out through the tubular outlet 43 of the sound box, and the portions of the air which pass around the valve or through the outer openings of the valve will first be deflected by the inner surface of the cover 42 to cushion the valve, and will then pass outthrough the tubular outlet 43 of the sound box, mingling with the air that has passed through the central portion of the valve. From the tubular outlet 43 of the sound box, the air passes through the U-shaped discharge tube 29 and through the circular opening in the inner portion of the tube and into the tone arm 24, from whence it is delivered from the device through the amplifier 25.` It is therefore evident that the amount of air which is permitted to pass throu h the sound box will be constantly varie by the oscillations of the valve, actuated when in operation by the stylus bar and stylus oseil ated in accordance with a sound record, and that vibrations corresponding to the sound waves recorded on t e record will be set up in the air passing through the sound box bv this oscillation of the valve. It is also evident that the sound box may be inverted from an operative position with its stylus in contact with a record, into an inoperative position where it will rest upon the free end of thetone arm l24, and that by thus inverting the sound box,the opening in the-free end of the tone arm 24 and the opening in the corresponding adjacent end of the supply pipe will be closed and the flow of current through the sound box will be stopped. lhis inversion of the sound box therefore effects the double function of moving the sound box into an inoperative osition, and of stopping the flow of the uid current therethrough, or, in other words, when the sound box is inverted into an inoperative position, the flow of the fluid current through the sound box is automatically stopped and a waste of power is preventet.

This invention is not limited in its apilication to the particular construction ioreinbeore described, but may be applied in other ferias to meet various conditions, without departing from the spirit of this invention or the scope of the appended claims.

lluving thus described my invention,

what I claim and desire to protect by Letters Patent of' the United States is:

1. In a sound box, the combination with means for conveying a fluid, of a valve for producing soun waves inl said fluid, and ,means for causing said fluid to balance said valve.

2.; In a sound box, the combination with a vibratory valve, of means for conveying a fluid through said valve, means for vibrating said valve in accordance with sound waves, and means for causing the fluid permit-ted to pass through the valve to balance said valve.

3. The combination in a sound box provided with an inlet opening forming a valve port, and with an outlet opening, and a depression surrounding said outlet opening, of a valve located between said openings and within said depression, covering said inlet ort and having its outlet side in close )roxlmity to the wall of said depression, w 1ereby part of the fluid passing through said port will be deflected to balance said valve.

4. In a sound box, the combination with a cas-ing kroviding means for conveying a fluid anc having an outlet, of a valve havin a plurality of passages for fluid, said va ve being located close to the wall of said casing and over said outlet, and means to actuate said valve in accordance with sound waves, the area of the portion of said valve containing said passages being greater than the area of said outlet.

5. In a sound box, the combination with a 'casingprovided with an outlet, of a valve seat provided with a series of openings located adjacent one side of said easing and in alinement with said openings, a movable valve located between said valve seat and said side of said casing and just out of contact with said side, and means to actuate said valve in accordance with sound waves, t-he construction being such that when the fluid is passed through said openings, some of the fluid will be deflected by the said side of said casing to balance said valve.

6. In a sound box, the combination with a hollow casing for conveying a fluid, of a valve arranged to impress sound waves u ion said fluid, and means for deflecting the fluid toward the inner walls of said casing before permitting the fluid to pass into contact with said valve.

7. In a sound box, the combination with a hollow casing for conveying a fluid, of a valve for impressing sound waves on said fluid, means for actuating said valve in ae cordance with a sound record, and means for deflecting said fluid toward the inner walls of said casing before said fluid is permitted to ass into contact with said valve.

BI.) In a sound box, the combination with a hollow' casing for conveynfr a fluid. of means for impressing soun( wavesl upon ysound waves upon a iiuid `passing through casing for directing a duid against tbe Walls l la hollow casing provided with an inlet and iiector for directing a fluid toward tl e, in-

-tiveen said deiector and said outietfor i1na casing providing a passage for noeosa said Huid, and tapering Ineens arranged to deiect said iuid toward the inner Walls of said easing before said fluid is permitted to pass inno` Contact with the said first nientoned means. l

9. A sound box provided with a passage for atluid, said assage terminating in oppositely dispose openings; means interposed 1n said passage between said openings andsubstantia-lly coaxial with said passage and tapering longitudinally thereof for de' lieeting said fluid, and means to impress, Vsound Waves u pon said fluid.

H10. in a sound box, the combination with a 'casing having an inlet and an outlet and providing a conduit -eonnectingsaid inletand said outlet, ot' means for impressing said conduit, and means for causing said fluid to be deflected `away from the central portion of said conduit,

l1. In a sound box, the combination with a hollow casing provided with an inlet and with an outlet, of a deiector located in said of said casing, and means for impressing sound Waves ori-said duid.

l2. In a sound loon, the combination with with an outlet, of a detiector arranged in said casing and tapering toward said inlet for directing a duid toward the inner walls ot said casing, and means tor impressing sound Waves upon said fluid.

13. ln a sound box, the combination with a hollow casingprovided with an inlet and ivith an outlet and forming Aa conduit connecting said inlet and said outlet of a dcner Walls of said conduit, and a valve bepressing sound Waves onsaid tiuid.

14. ln a sound box', the combination with a casing provided with an inlet'and with an outlet and forming a conduity for a iiuid oonnecting said inlet and said outlet, of a valve 4 adjacent said outlet for impressing' sound waves upon said fluid, and means in said conduit between said valve and said inlet for equalizing the iiovv of said iiuid toward said valve.

15. ln a sound'loox, the combination vvitli a casing providing a passage tor a duid and having an inlet and an outlet, of a valve provided Witli a plurality of openings and arranged in sai-:l passage between said inlet and said outlet for impressing sound waves on said fluid, and'rneans between said valve and said inlet to distribute said fluid equally through said openings.

16. In a sound box, the combination with p 1a duid, said passage having an inlet and an outlet, valve for impressing Asound 'ivavesnpon said fluid, and means bemensaid vave and said yvalve at spaced pom valve between ,impress sound Waves on a tiuid portopposite accordance with. a sound `valve extending beyond 'no uit a inlet for detlecting'said nuidoutvvardly to- Wand tlie inner walls '.oi" tissage, then causingJ-tlie saineto be denver-ed te 'said vaive at 'substantially equal velocities.

17; in a sound box, the combination a casing' including tu'oseparable portions, a valve seat arranged between said portions and dividing the interior of Said casing into a plurality or compartinents7 said bei .f provided with port. a valve arranged witbin said casing to control said gort, and

unen

sound reproducing means mounted said vseat and arranged t vibrate in accordance Witii sound Waves.

18. In asound box, the combination with sound reproducing means, of iiuid deiiectoi and equalizer comprising outer ring, an inner ringna screen leavingl its edges between said rings, and a detiector secured to said outer ring.

S). in a sound bof-1 for 'talking machines, tbe combination with means conveying a duid, of a iiexible valve movablv restricted at spaced points and ari'anged to oscilla-te as a whole about a predetermined axis, 'for irnnressing vibrations corresponding to sound waves upon said fluid, and means to iieX and' to oscillate said 'valve in accordance 'with a sound record.

Q0. sound b@ f for talking machines coinl'n'ising a statin y member, iiexible valve coperating v: ..1 said stationary inembei', yielding' means straining' said flexible V and sound reproducl to ile): said ticxible goints in accornauce with ing means ai'ran a sound record.

`21, Sound reproduc'ng means compri A a felativeljv7 stationary member, a tiexnbie member movably secured to said stationarvmember at spaced points and arranged 'to CTL 'flex between said points, and to oscilnte y a '-.vliole about :1 predetermined axis, and means arranged io beactuated bv record to tien' said flexible member s said .points and to osciliate said niet about said axis in accordance u record.

ln a sound box, a statioi in having; an inlet valve ,ioit, a valve coiw aid port, means for vibrating iid valve to passing through said port, and nieans on the outl side of said valve for dotiecting' srt of duid after it 1nas passed through said port, to balance said Q3. ln a sound a casing provided with L thereof, 'plate pro said port, and means to vili' said butlet into tbe space bet t i ne and .d portpiate, and aimost in contact con trolling;

y with an inlet port opposite said out ing and a fiat valve over said inlet port, and

'a flexible movable member with the inner wall lof said side; whereby when a fluid is forced through the said port, part of the said fluid will be deflected after it has passed through said port to balance the said valve.

24. In a sound bo' the combination with a casing provided with a central outlet 1n one side thereof, of a flat plate provided et openmeans to vibrate said valve in accordance with a sound record, said valve extending beyond the boundary of said outletinto the space between the said side and said 'port plate, and almost in contact with the inner wallof said side, whereby when a fluid is forced through the said casing part of said fluid will be deflectedvto balance the said valve.

sound waves on a fluid, said means comprising a stationary member, and a valve mounted to oscillate about an axis adjacent one end thereof and yieldingly secured adjacent its opposite end to said stationarymember.

2G. In a sound box, means for impressing sound Waves on a fluid, said means comprising a stationary member, and a flexible valve mounted to oscillate about an axis located adjacent one end thereof and yielding-ly secured adjacent-its opposite end to said stationary member.

Q7. In a sound box, means for impressing sound Waves on a fluid. said means comprising a stationary member, avalve mounted upon said stationary member to oscillate about an4 axis located adjacent-one end of vsaid valve, and yielding means connecting the opposite end of said valve to said stationary member.

28. In a sound box, means for impressing sound waves on a fluid, said means comprising a stationary member, a valve, a headed projection passing through said valve and carried by sald'stationary member, and a yielding washer between the head of said projection and said valve for holding salid 'valve'yielf'lingly in position. e

29. In a sound box, means for impressing sound waves 'n1 a fluid, comprising a stationary member and a movable member, secured atl one end and having an adjustable yielding connection at its other end to the saidstationary member.

30. In a sound box, a valve comprising a stationary member, having an aperture, and

adapted to normall, cover said aperture, said flexible mem er being secured on opposite sides to said stationary member, and means mounted upon said stationary member to flex said movable member inf-accordance with a soundy record to impress sound. undulations upon a fluld passlng through said aperture.

31. A sound box for talking machines,

25. In a sound box, means for impressing.`

let, of souri ar 'anged to'coperate with said seat, `and..`

means mounted upon said seat to actuate said valve 1n accordance wlth a sound record, 352. A sound box for talkmg machines,

comprising a casing including two separable port-ions connected together to form an internal groove. a valve seat mounted in said groove and provided with a port, a'valve arranged to control' said port, -and means mounted upon said seat for actuating said valve in accordance with a sound record.

33. A. Vsound-'box for talking machines,

comprising a casing including two separable portions united to form an internal groove, a valve seat mounted in said groove and provided with a port, a valve arranged in said casing to control said port, and means mounted 'to oscillate upon said seat and connected 4tosaid valve to actuate said valve in accordance with a soundrecord. 34. A sound box comprising two directly connected separable portions, provided with an internal groove between said portions, a valve seat. removably secured insaid groove, means forY positioning said valve seat with respect to said groove when the parts are being assembled, and means secured to said valve and projecting outwardly from said sound box for actuating said Valve in accordance with a sound record.

35. A sound box comprising two separable portions provided with an internal groove between said portions, a valve seat, removably secured in said groove, a pin for positioningsaid valve seat with respect to said groove' when the parts are being assembled, and a stylus bar rigidly secured to said valve and projecting outwardly'rom said box for actuating said valve in accordance with a sound record. y

36. In a sound box, the combinata,n with sound reproducing means of an equalizer, comprising an outer ring` an inner ring, and a screen having its edges clamped between said rings. y

37. In a sound b,ox, the combination with a hollow casing, of'sound reproducing means, a deflector arranged in said casing, and radial arms supporting said deflector.

3S. In a sound box, the combination with i a hollow casing rovided with an inlet and with an outlet, o sound reproducing'mea-ns, a deflector arranged in said casing and tapering toward said inlet,y radial arms supporting said deflector, arms and carried by said casing, within sajd first-me tioned ring, screen having its edge? rings. l

39. In a hollow cbsing having. an inlet and an outd reproducing means arranged in a ring and a clamped bet-Ween said airing supporting "said ai sound box, the combination with said casing, a detlector in said casing between said sound reproducing means and said inlet, and a screen between said sound reproducing means and said deilector.

40. In a sound reproducer, the combination of a hollow body provided with an inlet chamber having iiat parallel walls situated close together, a set of ports in one of said walls, a valve for varying 'the extent of opening of said ports, and means for vibrating said valve in accordance with sound waves.

al. In a sound reproducer, the. combination with a hollow body containing chambers communicating through a port, of a stylus bar carried by and mounted to oscillate with respect to said body, and a plate of elastic material carried by said bar and formingl a valve arranged to control said port..

42. ln a sound reproducer, the combination with a casing containing chambers communicating through a port, ot a plate ot' elastic material seated over said port, yielding means restraining said plate at spaced oints,` and means arranged to lex said plate `iietween said points in accordance with sound waves.

f 43. Sound reproducing means comprising ay valve seat provided with a port,l a valve arranged to control said port, and means mounted upon said seat for actuating said valve in accordance with a sound record.

-l-i. Sound reproducing means comprising a plate provided with a port, a valve arranged to control said port, and oscillatory means mounted upon said plate to actuate said valve in accordance with a sound record.

login a sound reproducer, the combination with a hollow body provided with chambers communicating through a port., of a plate of elastic material seated upon said port, yielding means pressing on said plate to torce it toward a closed position, and means for iiexing said plate in accordance with sound waves toy vary the extent of opening of said port.

e6. A sound reproducer comprising a hollow casing.A a valve seat provided with a port andY dividing the interior of said casing into two compartments communicating through said port, a flexible valve arranged in one of said compartments to control said port, and means mounted upon said seat to iictuate. said valve in accordance with a sound record.

et?. ln a sound reproducer, the combination ot a body having a port, a plate of elastic material seatedover said port,- means pressing on said plate, means for varying the pressure of said yielding means, and means for flexing said plate in accordance withssound waves to vary opening of said port.

yielding tige extent 48. .In a sound box, the combination with avalveseat provided with a port, of a flexible 1'alve arrangedito coperate with said seat, yielding means arranged to restrain said valve at two pointsv upon opposite sides respectively of said port, 'and means ar-. ranged to dex said valve between said points in accordance with a sound record.

49., ln a sound box, the combination with a valve seat. provided with a port, 'of a flexible valve arranged tocoperate with said seat, and yielding means arranged to restrain said valve at two points upon opposite sidesI respectively o`- said port, and a stylus bar connected to said valve and arranged to `flex said valve between said first mentioned points in accordance with a sound record.

50. ln a sound box',` the combination with a casing provided with an outlet, of a movable valve mounted in said casing adjacent said outlet. said valve being apert-urcd over an area greater in extent than the transverse sectional area of said out.let,and means Yto actuate said valve in accordance Awith a sound record. Y

5l. ln a sound box, the combination with a casing providetwith an outlet, of a-valve extending in said casing adjacent said outlet. the area bounded by the margin of said valve vbeing greater than the transverse sectional area ot said outlet, and means to act'uate said ralve in accordance with a sound record. -1

52. ln a ,sound box, ther combination with a valve seat. provided with a port, of a valve mounted to oscillate about an axis toward and away from said seatand controlling said port., means arranged to oppose the movement of said valve away from said seat. at a point spaced from said axis, and

means to oscillate said valve in' accorda-nce with sound waves, said port being arranged 4 between said axis and said point. ln a sound box, the combination with a valve seat provided with a port, of a valve mounted to oscillate about an axis toward and away from said seat and controlling said port, yielding means arranged to oppose the movement of said valve away from said seat at a. point. spaced from said axis, and means to oscillate said valve in accordance with sound waves, said port being arranged between said axis and said point.

54. In a sound box, the combination with means providing apassage for a iluid, of a valve coperat-ing therewith for producing sound waves in said fluid, said valve being arrtnged to be balanced in its action by said 55. In a sound box for talking machines,

Athe combination with means for conveying a Huid, of a flexible oscillatoryvalve. coplzreratipgatherewitph, rigid nea ns for oscillating.

said valve-as a whole about anl axis ,in accoi-dance` with a sound record for impressing sound waves upon. said luid.

56'. In a sound box, the combination wit-li a casing providing a passage for a fluid, said passage. having` an inlet and an'outlet, of a valve arranged in said casing close to a` wall otsaid passage and'in alinement with said outlet, the area of said va ve being greater than the area of said outlet, and means to vibrate said valve tol produce sound Waves. 57. In a sound box, the, combination With a casing providing a passage for a iuid and having an inlet and an outlet, of a valve provided With afplurality of openings and located in said casing adjacent ,said outlet and close to a wall of said passage, the area of the portion of said valve containing said openings being greater 'than the area. of said outlet, and means to vibrate said valve' to produce sound Waves.

58. In a sound box, the combination with a casing providing a passage for a fluid and having anfiiilet and anoutlet, of a valve seat provided Witli' a port arranged in said casing, a valve located between said seat and said outlet and close to' but spaced from a wall of said casing, and means to vibrate said valve to produce sound waves, the arrangement being such that when a uid is forced through said valve seat some of saidfluid will be deliected byv said Wall 'to balance said valve.

` 59. Ina sound box, the combination with a casing providing a passage for a Huid, of

`a vibratory valve arranged in said casing for impressing sound waves on'said fluid, means tor vibrating said valve in accord- -ance with a sound record, andineans arranged in said passage for deiecting the uid 'toward the Walls of said passage before permitting the Huid to pass into contact with said valve.

L 60.-' In a sound reproduoei, the combination with a Hexible valve yieldingly restrained atene point and mounted to oscillate as a Whole about an axis spaced from Nsaid point, of means arranged to oscillate said valve vabout said axis by' and in accordance with a sound record. v

61. In a sound reproducerp-thei, combination with a flexible valvejyieldingly restrained at one point and mounted to oscillate as a Whole. about an axisspaced from said point, of means 'arranged to flex' said valve'betvveen said point and said axis and 'to oscillate said valve about' said axis by andviii'accordance with a sound record.` y

6.2,. In a sound box, thecoinbination With l sound reproducing means, of a fluid dciector and equalizer comprisingI an outer ring, an

*inner'ring3 a screen having its edges clainnef'l between said rings, and a conical d'eiector4 secured to sai outer ring.

(33. ln a sou d beni, the combination with in said casing between said a hollow casing, of sound reproducing means,

carried thereby, a ring removably mounted in said casing, a dctiector carried by said ring, and a screen carried by said ring.

65. In a sound b ox, the combination with l a hollow casing'provided with an 'inlet and with an outlet, of sound reproducing means arranged Within said casing, a ring mounted i sound reproducdetlector carried ing means and said inlet, a

and a screen carried by said b v said ring, ring. 1 60. In a sound box, tlie combination with a hollow casing provided with an. inlet and with an outlet. of sound reproducing means arranged within said casing, a ring mounted in said casing between said sound -reproducing means and said inlet, a deflector carried by said ring, and 'a screen carried lby said ring, said deector tapering toward said inlet.

'67. In a sound box, the combination With a hollow casing having an inlet and an outlet,.of soundi'eproduciiigineans in said casing, a detlectoi' in said casing between said sound reproducing means and said inlet and tapering toward said inlet, and a screen between said sound reproducing means and said detlector.

G8. In a sound box, the combination with means providing a passage for a fluid, of a flexible vvalve coperatiiig therewith for producing sound waves in said fluid, said valve arranged to be balanced in its action by said Huid.

(59. In a sound box, the combination with a valve seat-proVide/d with a port, of a flexi' ble valve mounted to oscillate about an axis toward and away trom said seat and controlling said port, vielding means arranged to oppose 'the movement ot' said valve away from' said seat at a point axis, and means to loscillate said valve in accordance with sound Waves, said port bepoint. c

70. A sound box comprising a valve seat provided with a port, a flexible valve arranged. to ,control said port and restrained at points upon opposite sides respectively of said port, 'and means to flex said valve between said points in accordance with a sound record.

7l. A soundbox comprising a valve seat prpvided with a port, a liexible valve mounted to oscillate about an axis and restrained at a point spaced from said axis to produce sound Waves, and means to limit the oseillation of said valve.

ing arranged between said` axis and saidpaced from said 72. A sound box comprising a valve sfea l provided with a port, a fexbl valve m0unt- I my hand this 7th day 0 l ed to oscllate abopt 51s ams to pfoducl l *WILBUEE E. sound Waves, and yleldmg means arrangea 5 t0 'engage said vave at a point spaced from Witnesses:

sai axis to mt the oscillation of said ALSTON B. MOULTOX, Valv'e. ALEXANDER PARK,

n Wtless whereof have hete-Unio .C

March, A. D.. i906.