US859165A - Sound-conveying tube for talking-machines. - Google Patents

Description

PATEN'TED JU R.A. BOSWELL. SOUND CONVEYING TUBE FOR, TALKING MAGHINE APPLICATION FILED 00127.. 19.05.

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PATENTBD JULY 2, 1907.

R. A. BOSWELL. v SOUND CONVEYING TUBE FOR TALKING M AOHINES.

APPLICATION FILED 0OT.7,1905.

3 SHEETS-SHEET 2.

No. 859,165. PATENTED iULY 2, 1907.

v R. AWBOSWELL.

SOUND CONVEYING TUBE FOR TALKING MACHINES. APPLIUATION FILED OUT.7, 1905- 3 SHE'ETSSHEET 3.

ROBERT A. BOSWELL; OF WASHINGTON; nrs'rmor oF ooLUMBia.

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' Specification of Letters Patent:

' -Patented uly 1feo 7.

Application filed octotera sos. $erialllm281fl65, v

To all whom it may concern:

Be it known that ROBERT A. BoswELL, a citizen of the-United States; residing at Washington, in the District of Columbia, have invented a certain new and useiul Sound-Conveying Tube for Talking-Machines, of which the following is a description, reference being. a v had'to the accompanying" drawing and to the .figures of reference markedthereon. p e I I This invention relates to sound conveying tubes for talking machines, particularly talking machines of the disk type, and has for its object toprovide 'a' simple} inexpensive and eflicient: construction of the joint or connection between the reproduc'er arm and the 'delivery or amplifying horn of suc'h;sound conveying tubes, by which the necessary movements of both the reproducer arm and the horn, .both horizontal. and vertical, may all be effected from substantiallythesame point or center. a

. arm and the born by which these parts may have free- A further object of the invention isto provi de a construction ofjointor connection between the reproducer dom of movenent'independent of each other, so that whatever may be the position of the horn the free end 1 of the reproducer arm mayzmovefreely as may here 'quired to permit the stylus to follow the record groove.

A further object of the invention is to provide means bywhi'eh thehorn maybe held in any position in which it may be placed so asto direct the sound in anydesired direction and to provide means by which the free end of the reproducer arm-maybe held in raised position when it is desired to lift itffrom the record toperm'it the record to be removed and a' new one placed in position.

A further object of the invention is to provide means A by which the free end of the reproducer will be preyented from sagging if swung to one side off the record.

*With the above described objects in view'aswellas,

others hereinafter set forth, theinvention consists in the construction and combination of elements herei nafterdescribed and pointed out in the claims.

. Referring to the drawings: Figure 1' is a perspective view of a talking machine having the invention applied thereto; Fig. 2 is a vertical sectional yiew through the joint between the reproducerarm and the horn; Fig. 3

is a Vi w similar to Fig. 2 but showing a slightly mods; fied form of joint; Fig. 4 is a view similar to Fig". ,2 but 7' showing a further modificationj- Fig; 5 is a View similar to Fig. 2 showing a further modification; Fig. 6 isffa 1 detail sectional lview of'the construction shown in Fig. 5, but'showin'g the parts in'position to be assembled; Fig. 7 is a view similar to Fig. 2, showing a construction similar to that shown in Figs. 5 and 6, but with slight modifications; Fig. 8 is a detail perspective view of the joint end ofthe horn shown in Fig. 7; Fig. 9is a detail perspective view of joint endof the reproducer arm.

shownin Figs.- 5, 6 and 7; and Fig. 10 is a horizontal v sectional view on line arr-u: of Fig. 5,

In the drawings, 1 is the casing of a talking machinecontaining the usual mechanism for rotating the table a carrying the record'disk-., I f i I 2 is a bracket secured "to one side ofthe casing for supporting'the reproducer arm and horn.;- V v 5 3 is thereproducer arm carrying -atits free end 'thep usual'sound box 3 and having at its other end the up- Ward curve or elbow 4. j I

',.5 is the horn whi'chis of usual form having at the end PPQSi i s mouth the downward curve or elbow as .'shown."= I

The bracket 2'is provided at its upper end with a ring 25, which in the several forms of the invention f hereinafterdescribed serves to support, through iiitermediate means both the reproduc er arm and the horn. This ring may be integral with the bracket as shownin Figs. 2, 3 and 4, or may be separately constructed and' connected with the bracket as shown in Figs-5,6 and '7. 1'

In the construction shown in Figs. 2, 3 and 4, the ring 2 5.is centrally bored to receive a ball 6 which is held. imposition by anyrconvenient'meansas by screws 7} In the upper and'lower faces of the ring 25am formed recessesB and jj9 respectively. To the end of the horn 5 is secured an extension 10 preferably detachably connectedto the end of the horn as'by a'screw'joint 34 -35, thisex tension being adapted to ball 6. andto be held in place by a ring 11 bearing .upon its, upper face.

Thecurve'd emits elbows of the reproducer arm is provided with a'flange 37, adapted to fit and move readily upon the lower surface of the ball 6 and to be held in place by a ring.12 bearing against its lower surface. The'rings I1 and 12 may beheld in place as shown in'Figs. 2 and 3, by means of thumb screws 13; or'the rings may be screw-threaded as shown at 114, to engage screw threads 15, formed in the recesses 8 and 9. The ball 6 is provided with a central vertical bore 16 which may. be substantially cylindricalas shown in Figs. 2 and ,4, or may-be tapered as shown in Fig. 3, sov as to form withfl the reproducer arm and fit and move readily upon the upper surface of the :the horn a passage of gradually increasing diameter Ifromthe soundbox to the mouth of the horn.

. "lhe flang-37 'on the end of the reproducer armis preferably-of greater-width on the side opposite the free endof the reproduce-r arm as shown atz38' so 'as j to form a'stop adapted to strike the bottom of the re- 'cess 9, when the free end of the reproducer arm is off the, record "disk and thus prevent the free end of the arm from droppin'giar enough to injurethe stylus or spundbox'. 3 i In operation, the ringlZ will be so set as to hold the flange" 37 against the lower surface of the ball 6, but at the same timef't'o permit it to move "freelyin either ahorizontal direction as maybe necessary to screws or by the engagement of the screw threads ].415, so as to hold the horn in any desired position, .it being possible to shift the position of the horn by slightly loosening the thumb screws or by unscrewing the ring.

By the construction above described, a simple, in-

v expensive form of joint is secured which permits the reproducer arm to move freely in any direction and permits the horn to be readily adjusted in any position either horizontally or vertically, and holds it firmly in adjusted position, whatever the movement of the reproducer arm may be, without materially varying the. form or character of the sound passage and without interrupting its continuity.

In the construction shown in Figs. 5 to 10 inclusive, instead of the ball 6 fixedly held in the ring 25 as in Figs. 1 to i inclusive, a hollow ball 32 is provided having a ring 33 thereon provided with screw threads 34 to engage the screw threads 35 of the end of the horn. This 'hollow ball 32 fits and is adapted to move readily in a bowl 31 which is provided at its upper end with screw threads 30 to engage screw threads formed on the inher face of a depending flange 29 of the ring 25. The flange 37 of the'end of the reproducer arm fits and is adapted to move freely on the outer surface of the bowl 331 and is held thereon by a ring 28 screw-threaded at 27 to engage screw- -threads formed on' the inner face of a depending flange 26 of the ring 25, the inner surface of the ring 28 being so shaped as toform between it and the outer surface ofthe bowl 32 a recess in which the flange 37 may move freely.

For the purpose of providing means by which the free end of the reproducer arm may be held in raised position if desired the wider portion 38 of the flange 37 is provided on its outer surface with series of indentations 39 adapted to receive the pointed end of a spring pin 40 carried by the ring 28. For the purpose of holding the horn 5 at any desired angle relative to a horizontal plane, the ring 25 may be provided with a set screw 36 carried in a suitable lug on the upper face of the ring and adapted to bear against the outer face of the hollow ball 32 as shown in Fig. 5 or the hollow ball 32 may be provided on its outer face as shown Figs. 7 and 8 with series of indentations 12 with which the pointed end of a spring pin 41 carried by a lug on the upper face of the ring 25 is adapted to engage.

.In assembling the invention in the form shown .in Figs. 5 to 10 inclusive, the end of the horn 5 is inserted in the ring 25 from the upper side and the hollow ball 32 is inserted from below and the screw threads 34 35 are 2 caused to engage. The bowl 31 is then secured in position by causing the screwthreads 30 to engage the screw- 1 cured in position.

It will be noted that in all of the constructions shown,

one member of the joint, the ball 6, in Figs. 2, 3, 4 and the bowl 31, inv Figs; 5 to 10 inclusive, is fixed, and

forms with the members formed on the ends of the reproducer arm andthe horn, a ball and socket joint, the fixed or stationary member in each case having surfaces on which the members carried at the ends of the reproducer arm and the horn have the free movement in any socket joint.

It will also be noted that in all of the constructions shown, the movements of the reproducer arm and horn on the fixed or stationary member are about a common center both as regards their movements-in horizontal planes as well as in vertical planes. And it will also be noted that in none of the constructions shown is the sound passage obstructed the sound passage in the construction shown in Fig. 3 being tapered regularly from the reproducer arm to the horn.

In the drawings the applicant has illustrated the basic idea of breaking substantially the center of an amplifying horn, with a flexible joint, so as to allow the free ends thereof to have a vertical movement as well as a horizontal movement; in view of which it is to be understood that the construction of the device may be varied if desired without hindering the commercial value thereof; the right being reserved to use said variations and to use, manufacture and vend, eitherthe connection of the horn, or the connection of the arm separately, if desired, without departing from the spirit of the invention, so long as they are embraced within the scope of the appended claims.

Having thus described the invention -what is claimed as new with the protection of Letters Patent is 1. In a talking machine a reproducer arm and horn a ball and socket joint connection therebetween to permit both the reproducer arm and horn to have a universal movement 2. In a talking machine, the combination with the.re--

producer arm and the horn of a joint connecting the reproducer arm and the horn, comprising a stationary member adapted to form spherical bearings for both the reproducer arm and the horn.

a stationary spherical member, a member carried by the reproducer arm cooperating with,the stationary member and a member carried by the horn also cooperating with the stationary member.

' desired direction'which is characteristic of the ball and I 3. In a talking machine, a reproducer arm and horn a ballv and socket joint connection between them, comprising 4. In a talking machine, the combination with the reproducer arm and the'horir of a flexible joint connecting the reproducer arm and the horn, comprising a stationary spherical member having separate bearing surfaces'adapted to form spherical bearings for the reproducer arm and horn respectively.

'5. In a talking machine, the combination with the re producer arm and the horn of a'iolnt connecting the reproducer arm and thehorn comprising a stationary memher having separate spherical bearing surfaces for the re- 3 producer arm and the horn respectively and means for holding the horn against movement/on the stationary member. V 6. Ina talking machine, the combination with the re producer arm and ,the horn of a joint connecting the reproducer arm and the horn comprising a stationary member having separate spherical bearing surfaces for the re- "producerarm and theihorn respectively, a ring supporting -the' stationary member and serving as 'an abutment to limit the vertical movement of the reproducer arm.-

7. In a talking machine, the combination with the reproducer arm and the horn of. a joint connecting the reproducer arm and the horn, comprising a stationary memher "having spherical bearing surfaces, means carried by the horn adapted to fit one of the bearing surfaces, a flange on the end of thereproducer arm adapted to fit the other bearing surface, a ring supporting the stationary member and means carriedby the ring for engaging the flange of the reproducer arm 'to hold the free end of said arm in' raised position.

8. In a talking machine, the combination with the re-' producer arm and the horn of a joint connecting the reproducer arm and the horn, comprising a stationary mem ber having spherical'bearlng surfaces, means carried by/ the horn adapted to fit one ofthe bearing surfaces, a flangeon the endof the reproducer arm adapted'to fit the other bearing surface, a ring supporting the.stationary member consisting of a spring pressed pin, and means car' .ried by the ring for engaging the flange of the reproducer arm to hold the free end ofsaid arm in raised position.

9. In a-talking machine, the combination withthe reproducer arm and the horn, of a joint connecting the reproducer arm and horn comprising a stationary member having spherical bearing surfaces, means carried bythe' horn adapted to fit one ofthe bearing surfaces, a flange" on the end of the reproducerarm adapted to fit the other bearing surface, and having opposite the free end of the reproducer arm an extension, and' a' ring supporting the stationary member adapted to form an abutmentforthe extension of said flange whereby the downwardimovement of the free end of the reproducer armis-iimited. Y T

10. In a talking machine the combination withthe're producer arm and the horn,-of a joint connectingihtiier'eproducer arm and horn, comprising a 1 stationaryball, means carried by the ends of the reproducer arm, and the horn respectively, adapted to fit and move on opposite bearing surfaces" of the ball and means -for holding'the ends of the reproducer arm and horn against said ball.

. 11. In a talking machine, the combination with there- .ical shaped ,member, means carried by the ends of the reproducer arm and the horn adapted to fit opposite hearing surfaces of the spherical shaped member, and means for'holding the ends of-the repro'ducer arm and-horn againstsaid spherical shaped member.

13. In a talking machine, ameproducerarm' and horn,

a joint fiexibly connecting the arm and born about a common center.

14. In a talking machine, a reprodncer arm and horn, and a flexible c'ommoncenter joint connecting between them. said joint having meansto limit-the downward movement of the-horn. 15. In a talking machine, an amplifying-hornand a flexible ball joint breaking at a point between the ends.

16. In a talking machine, .an amplifying horn and a common center joint-breaking at a point between the ends thereof, so' as to allow the freeends to have vertical and horizontal movements.

17. In a talking machine fthe' combination with the reproducer arm and'horn, of a joint. connecting the repro ducer arm and th'e horn comprising a stationary member having separate spherical bearing surfaces for the reproducer arm and the horn respectively and means to prevent downward movement of the, horn. o

18. In a talking machine, a reproducer arm and horn having a joint pivotally 'connecting them about a common center so as to permit "them vertical and horizontal mov'ements' 19. In a talking machinefa reproducer arm and horn, a

' joint pivotally connecting' them about a' common center,v

comprising a stationary member having spherical bearing universally upon the spherical bearing surfaces, said joint the reproducer arm and born. 1 1 2l.'-Inla talking machine, a. reproducer arm and horn, a joint connectingthem together, comprising a stationary spherical bearing member and means carried by the horn to move universally upon said stationary spherical bearing member. o

22.;In a talking machine, a reproducer arm and a born, a joint connecting-them together, comprising astationary spherical bearing member, and means carried by the repro- 'ducer arm to move universally-upon said stationary spherical bearing member I 23. Inla' talking'machine, a reproducerarm and horn, a jointv connecting: them together, comprising a spherical to mbve universally npon said'. spherical, bearing member, and saidfmeinshaving means to limit the downward movement ofthe reproducer arm. 4 "24. 'In'a talking machine, a reprodnc rm and horn, a

bearing member, means carried by the'hornto move univer- -s'ally nponisaid spherical bearing member, and said joint ,having mean's'to limit the downward movement of the -horn. 1

25. Inn talking-machine, a reproducer arm and born, a flexible joint connecting them together, comprising a stationary bearing member, said arm and horn having means ,to mbvenniversally upon :said stationary bearing member. Ina talking machine a reproducer arm and horn, a

jtionarybearing member, said. arm and horn having means ments of the farm and horn.

. 27. In a talking. machine, an amplifying horn having a com'pris'ingla stationary. bearing member and the sections ,of the said-horn on opposite sides 'of saidIbearing member 'having'-meansl to" move universally upon said stationary bearing'member.

' 28. Ina talking machine, ssound conveying tube having a flexible joint breaking at a: point between the ends thereof comprising a stationary bearing member, the sections of the'said sound conveying tube upon opposite sides of said bearing-member havingv means to move universally upon said stationary bearing member and said joint having .means to limit the downward movement of the free ends of the sound conveying tube.

29.v In a talking machine, a sound conveying tube having -a joint breaking'at a point between the ends thereof, comprising a spherical stationary bearing member and the section's ofthesaid sound conveying tube on opposite sides of said hearing member having means to move universally upon sald spherical stationarybearing memberfl 30."Atalking machine comprising a relatively stationary member. having separate bearings and a reproducer arm and horn .operativelyconnected to said bearings, each 'to swing horizontally and vertically thereon.

' 31. A -talking"machine comprising a relatively stationary member having separate bearings and a reproducer armand horn flexibly connected tosaid bearings, each to swing universally' thereon.

o 32. In a flexible amplifying horn, ajoint located at a pointbetween the free ends'thereof comprising a station between the free ends thereof comprising a stationary spherical bearing member operative to allow for universal movements of the free ends of the horn, and means to limit the downward movement of the horn.

34. In a flexible jointed amplifying born, a joint located between the free ends thereof comprising a spherical bearing member so as to allnw for universal movements of the free ends of the horn, and means /for holding the free ends to saidspherical bed'ring member.

.35. A talking machine comprisi'* a relatively stationconnected to said bearing so as? movement.

' flexible joint breaking at a point between the ends thereof ary member having a spherical bea ng, and'a hohanflexibly o have fa universal.

having means to limit the downward movement of both i bearing. member, means .carried by the reproducer arm joint connecting-them together, comprising a spherical flexiblejoint connecting them ,together comprising a statomove'un'iversallyupon-said stationary bearing member and said joint'having means to limit the downw'ardnziove 33. In a flexible jointed amplifying horn, a joint located 36. A talking machine comprising a reproducer arm and horn; an operative connection therebetwee'n; each of said parts having a nniversal movement about said connection.

37. In a talking machine; a horn support; a reproducer arm and horn connected thereto upon a common center to have universal m0vements.-

38. A reproducer arm and horn; comprising'a connection therebetween to permit both the arm and horn 'to move universally about said connection upon a common center. 1 4

39. talking machine comprising a reprodueer arm and horn; an operative co'nnection therebetween; each of said parts having a universal movement about said connection said connection having means to limit the downward movement of the arm and horn.

40. In a talking machine,ai'eproducer arm and horn; and a ball andsocket jointtherebetween.

In witness whereof, the applicants signature is hereunto aifixed inthe presence of two witnesses. i

I ROBERT A. BOSWELL.

Witnesses:

RoBnnT' S. Boswnnn, FRANK A. HARRISON.

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