US896009A

US896009A - Sound-box for talking-machines.

Info

Publication number: US896009A
Application number: US40206007A
Authority: US
Inventors: Edward D Gleason
Original assignee: Victor Talking Machine Co
Current assignee: Victor Talking Machine Co
Priority date: 1907-11-14
Filing date: 1907-11-14
Publication date: 1908-08-11
Anticipated expiration: 1925-08-11

Description

. .n D. GLEAsoN.

ASOUND Box-.Fon TALKING MACHINES,

.LP-PLIOATIO FILED HOV. 14, 1907.

m y W m M.. d. ,y

:Nye-Nros ABY STATES PA CFENT OFFICE#- EDWARD D. GLEAsoN, oF MooREs, PENNSYLVANIA, .isslcxoa To VICTOR TALKING MACHIXE COMPANY,'A CORPORATION QF NE\V JERSEY.

soUND-'B'ox Fon TALKIN'MAGHINES.

ich. 896,009..

Specification of Letters Patent.

ratented Aug. 11, 190s;

Application tiled November 14, 1,1907. ASerial No. 402,060.l

To all 'whom rit may concern:

Be it known that I, EDWARD D. GLEAsoN,

`a citizen of the United States, and a resident I l clear, and complete disclosure.

flphe main objects of this invention are to provide in a sound box an improved stylus ar and .mount-ing, and an improved means of mconnecting the stylus bar to the diav phra m. v f

Ot er objects of this invention will appeal in the following description.

In the a'ccompanving drawings: Figure 1 is a-front elevation of a sound box constructed -in accordance with this invention; Fig. 2 a

longitudinal section of the same upon the line 22 of Fig. 1,- looking the direction of the arrows; Fig. 3 a front elevation of a modied form of this invention; Aand Fig. 4 alongitudinal section upon line 4 4 of Fig. 3,

ooking in the direction of the arrows.

Referring to Figs. 1 and 2 of the drawings, one embodiment of this invention omprises v'a sound box casing 1 Vhaving-a cylindrical bore 2 in the face thereof and an annular V shaped .groove 3 within the bore near the front edge of the box.' The diaphragm 4 lis carried within the bore of the box between hollow annular gaskets 5 and', the outer g. gasket 5 resting 1n the said V-shaped groove v"3 and the inner gasket 6 being retained be- -tween the'cylindrical bore of the box and the x'ear:'v\'all't-hereof, the outer gasket being necessarily of greater diameter than the inner gasket whereby the two gasketsA bear/against -the diaphragm in concentric circles.

p caslng b The stylus bar 7 consists of a' straight, iiat rectan u ar main ortion spaced from the front o the box an terminating in a portion- 8 extending at substantially right angles to the main ortion and longitudinally over the outer su ace of the sound box casin being rigidly secured within a correspon ing recess in the-outer periphery of the sound box means of the screw 9. Between the diap ragm and mainv portion of the stylus bar and axially ott the sound box is arranged a rod 10, which is rigidly connected to the bar and the' inner end of which'is` phonetically connected to the diaphragm.

The lower end of the stylus bar projects outside of the -peripheryfof aperture, a special the sound. fbox- I and is provided with the socket 1l for the reception of the stvlus needle 12, and in order to hold the needle in place, the bar is split longitudinally with a kerf 13 which terminates `itt its upper end in a circular a )erture 1g4 extending transversely through tlie bar. The bar is also provided adj acent` the upper end of theA needle socket with a conical aperture 15 extending transversel through the bar .and in alinement with t 1e sound box A conical pin 16 is secured to the casin soun box casing and converges within the said aperture 15, being normally slightly out of Contact with the sides of the conical aperture `and the upper end of the stylus needle when; the stylusneedle is in operative position but when the stylus bar is pressed toward the` sound box casing, the conical pinA engages against the'sides o? the conical aperture and the end of the stylus needle to spread the ides of the stylus socket and to electthe stylus needle, the ordinaryv `oscillation ,of the stylus bar in the form of vibrations corresponding to sound Waves, not being s ucient to bring the end of the 'needle into contact with the sides of the conical pressure being required for this purpose.

With this construction in mind, it is obvious that the stylus bar is mounted to oscilla-te from its upper end as an axis in apla'ne perpendicular to the diaphragm for the purpose of either` recprding or reproducing sound waves.

In igs and 4 showing a modified forni of thisl invention the stylus bar 17 is similar in shape to that already described but i11- steadof extending across the full front of the sound box casing 18 and being fastened in alineinent with the stylus needle, its inner end terminates at a point between the center of the sound box and the edge thereof and is carried upon lateral extensions constituting a cross bar 19, extending diametrically over the` front of the box and being rigldly secured at its'ends to the sound box casing by.

means'vof the screwsv 2O.v TheA ends of the cross barrare weakened by oppositely disposed lateral kerfs 21 arranged just within and in close proximity to the inner edges of the sound box casino' whereby the cross bar is made sensitive tov the torsional stresses such as would result from the necessary oscillation of the stylus bar corresponding to the sound waves, but remaining substantially rigidwith respectto stresses tendingtdbend the' same,

ifo p i portion of ,The stylusv .bar .is vconnected to the diaphragm from two points .spaced at respectively/equal distances abdve and below' the axial: jline of the soundf box by means of a thread'oi'wire 22 .the ends of which are passed through suitable aperturesv in the stylus bar and terminate' and are held in place beneath the heads'of screws 23' which are arranged adjacent to the said val'iertures the central ortion Aoi' the thread being phonetically con ne'cted by wax 24 lor other the center of the diaphrav'in. I preferably use a thread of nonfmetallicf'material for this pu osethe object vvbeing-to avoid the harsh unp easant vibrations w 'ch are caused when a 'metallic connection is used between vthe dia hragm and the stylus.:

he lower end of the 2 freely over the face of tlfiesound box and projects outside ofthe vperi `hery thereof, in a manner similar to that a read -described for the stylus shown in v,Figsrl an 2. i The lower this bar 17 is identical in form with that already described yfor the previous figures, thebar being split longitudinally by a kerf terminating at Sits, upper end in a circular aperture26 and having a conical i. aperture 27 to receive the conical pin 28 which is rigid with a sound box casing, the lower'surface of the conicalpin being normally just out' of contact with the sides of the conical aperture'and the upper end ofthe stylus needle 29, when the needle is in its operativeposition in its socket. l

In the o eration of latter form of sound box, it is evident that theportion of the stylus bar inalinement with the stylus needle will vibrate in a plane perpendicular to the diaphragm-and about its lateral exten-I sions as an axis, bringing stresses alternately upon the up er and lower ends of the thread connectingy t e stylus bar to the'vdiaphragm and producing corresponding vibrations of the diaphragm. 2 v

Although I have shown and described only -tWo forms in which this invention may be embodied,

Yet'I donot limit myself vto these particular orms as it is' -Levident that various changes might be made in the details ofcon-l struction Within -thescope of the appended claims without departing from the spirit of Having'thus-fully 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 a casing of a diaphragm, to oscillate with respect to `'said casing, and

means connecting a pointin said diaphragm With points in said stylus dbar upon o posite sides ofthe axis of oscillation of sai stylus bar. v i;

2'. In asound box, 'the combinationff'a casing a diaphragm, a stylus bar having a portonextended upon opposite sides of the.

suitable means to tylus I bar projects needle .when the stylus a stylus bar mounted 'from said' ar. l

@thev 'opposite si lon 'tudinal ax'is 'of said-casing mounted to osc late with respect thereto and means connectin points bf said bar upon opposite sides I of the ongitudinal of saidzcasingv to the central point ofv said dphgm- 3. In a sound box, thecoinbination of a casing with a diaphragm, astylu's bar having a portion extended upon opposite sides of thelon 'tudinal of said c asing mounted to osci ate with. respect thereto vand non-metal- :lic thread connecting points of-said bar upon opposite sides of the longitudinal axis of said casi to the'central point of said diaphragm.

4. n a sound box, the combination with a casing of -a s'tylus bar, a stylus needlecarried by said bar, and means actuatedA by the movement of said barwith respect to said casing for ejecting sailneedle therefrom. Y

5. Ina sound box, a stylusl bar having a socket inthe end thereof for the-reception of a stylus needle, said bar being split longitudinally through the .sides of said socket Wherea needle may be yieldingly held in said socket, and means acting laterally of the bar for spreadig the sides of said socket to release a nee e.

6. 'In a sound box, the combination with a casin' of a stylus bar having a socket in the end t ereof to hold a lylus needle, said bar being' split longitudin y through the sides of said socke't and having a transverse a'per-l ture adjacent the upper end of said .soc et,

and a conical pin secured to said casing 'and 4 projecting 'into said a erture to eject the is pressed toward said casin 7. l(in a sound box, the combination with a casing of a stylus bar and a mounting for said' bar comprising a transverse bar extending diametricall of said casing andU formingthe axis of osci ationjof said lstylusbar,l lthe oposite ends "of said transverse bar beingrig-- idly secured to said casing.

8. In a soundbox, the combination with a Y. i

casing of a stylus bar and a muntmg for said bar comprising a transversebar extending. diametrically of said calsin' the op osite ends of said 'transverse bar eing rigiv y secured tol said casing and said transverse bar being weakened at al point adjacentitsend,

to yield readily to torsional A causing said bar stresses, but. to remain substantially rigid with respect to' stresses tending same.

9. In. asound box, the combination with a casing, of a stylus bar having means for holding a needle, and means carried by said c'asing and -ri id' therewith for ejecting a needle to bend the Y 10. In a sound box', the combination with a casing, of a diaphragm, ing .liametricall of thecasing and secured to cured to said cross bar and a cross bar extendes thereof, a stylus harm-seprojecting transf' y versely upon each Side. til-GIO, .fanti wm l n from'sald bar.

i A('A'iitrallyf'thereof, an

`connect" said stylusbat u on o osite "sides of gilngd cross bar vto said dialzhragiilpsaid i 'cross barjorming' the axis ofoscilla'tion of annif-st lus bar.

essi-ng and ngid therewith for ejectin'g a 1 2; a sound box, the combination vwith of a' stylus bar having means flor t e `a needle from said b ar. 13.4 n a s oundox the combination with 'hragm, of 'astylus bar ounted to osfateu on a lyingi a ,plane erpc'ndic arto s adgxliaphrag'm and exten ing trajlly thereof. n 14 a-s'ound box the combination with diaphragm, of a st lus bar mounted to os- 'cillat'ezu'pon an Aaxis ying in agplane per enduIar to "said diaphragm .and exten in means connecting sai ing for'eject' l of a stylus bar having means for 1...holiling a needle and a pin carried by' said the" Sides of the carried by said casing and engaginlin said nee e from transverse aperture toeject a said socket.

22.. In a sound box, the combination with a casing, ofa styglus bar having means for holding a stylus needle, and means carried by said casing and acting. laterally of said bar to eject a needle therefrom.

23. In a sound fbox, a stylus bar having a socket in the end thereof for the rece tion of a stylus needle, said .bar being split ongituby the movement of said bar with respect to 'l T25 bar u on opposite sides of the ofoscilladinally throu h tile sides of said socket, 4and tion ereo -to said diaphragmg;v n means carrie bythe sound box ,a nd-.acting 15, The combination vvuiighlijfigl diaphragm, transversely of said socket for spre "the of 'fa s t lus-bar mounted to-o'scillate with resides of said socket to release a needle lt ere- -spect thereto', and means connecting said bar from. fg. -30 upon opposite sides. ofits of oscillation 24. The combination with a st luslbar 80 a c 50 for hol tosaid diaphr #16: The. com ination '1'vith`a diaghragm, 1'oiastylus bar mounted to oscillate rith respeci:v thereto, and. means connecting said bar'upon opposite sides of its, axis of oscillaortion of said diaphragm.l

. tinn'to thecentral f" 117. In a-sound ox the combination with a diaphragm, of a stylus bar mounted to oseigatejpponafixed axis parallel to said dia- 4;-

a plane `per endic'ular thereto and extendingdiametrical y thereof.

' Q18." In a sound box, the combination with a casingpof a diaphragm, a stylus bar mount- 'ed n-f'said casmgto .oscillate upon an axis 45 ,parallgl ksa'id diaphragm. andl in a plane mounted to oscillate, 'of means fixe re'-, spect to the Qo'f oscillation of said barfor eJect' a-needle therefrom.' f

25. vmounted to oscillate and having a split socket of means fixed with respect to the axis 'oi oscillation of said bar for spreading the sides of said socket to eject a needle therefrom. l .34j

26.Tl1e combination with a stylus bar havin a s lit socket,l of means actlng laterally o sai banand actuated bythe movement of the-said barfor spreading the sides of said socket to ej ectja needle therefrom.

In witness whereof I hereunto set my hand this 13th day offNovember, A. D. 1907.

. EDWARD D. GLEASON. Witnesses:

A. I. GADNER,

A LExANnER Penn.

n n-"hereby @rained that in' Leners' ramt No. 896,009, .August 11,1908,-

he combination with .a .stylus bar i upon the-application of Edward Gleason, of Moores, Pennsylvania, foi an improvement in Sound-Boxes for TalkingMachines, an error appears in the printed specification requiring correction, as follows: On page 2, line 112, after the word casing, `the words and forming the astio-of oscillation of said alg/lua bar should beinserted; andthat 'the laid Letters Patent should be vwith rthis correction therein that the salnemay y conform to the record of the case in tlieV Patent Omce.

Isigned and seared' nazcan day 0f ai. A.. n., isos [am] V I from'sald bar.

i A('A'iitrallyf'thereof, an

a plane `per endic'ular thereto and extendingdiametrical y thereof.

. EDWARD D. GLEASON. Witnesses:

A. I. GADNER,

A LExANnER Penn.

n n-"hereby @rained that in' Leners' ramt No. 896,009, .August 11,1908,-

Isigned and seared' nazcan day 0f ai. A.. n., isos [am] V I orreetonin Letters Patent No. 896,009.

It iP hereby certied that in Letters Patent No. 896,009, granted August 11, 1908, upon the application of Edwarl D. Gleason, of Moores, Pennsylvania, for an improvement in Bound-Boxes for Talking-Machines, an error appears in the printed specilication requiring correction, as follows: On page 2, line 112, after the word casing,

the Words and forming he axis of oscillation of said stylus bar should be inserted; and that the lid Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oce.

Signed and sealed this 20th day of Octoer, A. D., 1908.

[am] G. C. BILLING-S.

Acting Compass-lauw f #rn/f