US951127A

US951127A - Sound-box for talking-machines.

Info

Publication number: US951127A
Application number: US35653007A
Authority: US
Inventors: Eldridge R Johnson
Original assignee: Victor Talking Machine Co
Current assignee: Victor Talking Machine Co
Priority date: 1907-02-09
Filing date: 1907-02-09
Publication date: 1910-03-08
Anticipated expiration: 1927-03-08

Description

I 11.3, JOHNSON.

scum) Box ron TALKING momma.

- LPPLIOL'I'IOI FILED 2213.9, 1907.

951,127}- v Patented Mar. 8, 1910.

INVENTOR adwq ezmm I WITNESSES w ATTORNEY STATES PATENT OFFICE.

EIZDBIDGE R. JOHNSON, F MERTON, PENNSYLVANIA, ASSIGNOR TO VICTOR TALKING Maonm i COMPANY, A CORPORATION 01 NEW JERSEY.

SO'lJ'NDfiBOX FOR TALKING-MACHINES.

Specification of Letters Batent. Application filed February 9, 1907. Serial No, 356,530.

Patented Mar. 8, 1910.

i To all whom it may concern:

Be it known that I, Emmmse R. JOHNSON, a citizen of the United States, and a resident of Merion, county of Montgomery, State of Pennsylvania, have invented certain new and useful Improvements in Sound-Boxes for Talking-Machines, of which the following is a full, clear, and complete disclosure, reterence being had. to the accompanying drawings forming part of this specification,

The main objects'of this invention are; to provide a stylus bar and mounting therefor of: simpleconstruction and of few arts, and

havingno parts subject to wear L as to the oscillation of the bar, or likely. to become loose and to. permit of lost motion of the bar; to provide an improved mounting for a stylus bar. that will permitthe bar to oscillate in a single plane about a substantiall fixed axis but w iich will hold the bar rigidly"against any other movement with respect to its mounting; to providean improved mounting for a st his bar which will counteract a'ny undesira le momentum or I movement of the bar'; to prov de in a sound us ar and mounting' box an improved styl therefor in combination with a diaphragm, of the stylus bar will be in-the plane of the diaphragm, so that the movement of the' end of the stylus bar connected to the diaphragm will be in a direction perpendicular to the diaphragm so as not to exert any oblique stress upon the dia hra intending tobuckle it; and to rovi e 0t ier improvements as will ap ear ereinafter. j v

n the accompanying drawings, F igure 1 is a front' elevation of ,asound box constructed in accordance with this invention; Fig. 2.is a side elevation of the same; Figl 3 a longitudinal section on lines 33 of Figs. 1 and}; and Fig. t a fragmentary bottom planview of the so'iind box.

Referring to the drawings, the improved soundl'box comprises the usual cylindrical casing l supporting the usual diaphragm 2. The stylus bar 3-is connected at its upper end 4 to the diaphragm by any suitable means, and the lower end 5 of the stylus bar is offset and provided with a central socket adapted to receive the stylus 6. The stylus bar is provided with a pair of opposite projectmg rigid lateral extensions 7--' each of which-has at its outer end a slot 8.- The stylus bar mounting, comprises a rigid laminatedsupporting plate 9, which is substan-- tially rectangular in general outline, and is provided upon its edge adjoining the stylus bar with a recess 10 ada ted to receive the oifset portion of the bar, eaving a rigid bifurcated arm 11 projecting rigidly outwardly on each side of the supporting plate. The rigid supporting plate is preferably formed of three thicknesses or laminations,=' the central thickness beingless in width than the width of the other thicknesses and'extending from the inner edge of the recess 10 to the opposite edge of open spaces or slots 12 forming the-said bifurcated arms 11;

The stylus bar is yieldingl connected to the rigid 'supportin plate 9 y means of a pair of spaced yiefii' one of which is fastened at one endin one of the said'slots 8 of the lateral extensions of the stylus bar, by means of a single screw 14, and at its opposite end in thecorrespond ing slot 12 in the arm of the sup orting plate, by means of two screws 14. The yielding members are preferably arranged parallel to each other, to secure strengthand simplicity of construction, but the arrangement might be varied for instance by having the members converge or diverge, and-the members would still perform their functions. These yielding members 13' are preferably made of comparatively thin spring steel, oblon in cross section, and preferably tempere but it is obvious that practically any flexible material may be used instead of steel.- other resilient material is used for the yielding members, the resiliency of the mater-ialac'is to counteract 'the momentum of 9.5

the bar when itoscillates. Steel springs for this puripose can be made as'thin and ield-' ing as esired, and tempered to any egree:

of resiliency preferred, and owing 10 the the. springs-may: 1 0 0 be made cheaply 'in quantities with greatsimplicity of their. design,

uniformity. To restrain the stylus bar to oscillate upon a substantially fixed axis, the

bar and its fixed supporting plate are spacedouly a very short distance apart, the-dis- 105 tance being only suiiicient to 'ermi't of'the necessary oscillation of the ar, without bringing the bar intb contact wi and the yielding members supporting the bar are therefore permitted the plate, leaving" between the outer thicknesses of the'arms ofsaid plate, thus mg members 13, each. v

WVhen steel or-any th the plate,

to hex only movably secured to a lug or sup ort 15 upon about a substantially lixed axis constitutin the axis of oscillation of the bar. a

, From this description it will be apparent that the ends of the steel sprin 13 are entirely inclosed and clamped i etween the laminations of the rigidsu porting late 9 on the sound box cas ng and the rigi lateral extensions 7 of the stylus bar. These clampin means render the entire length of the sa: springs-rigid except that 'a -very minute portion 0 the same which forms the axis of the oscillation of the stylus bar. As has beenpointed out the distance between the clamping) members of the casin and of the sty us to permit the stylus bar to oscillate without efl'ecting any engagement or contact between said clamping-members. By thisconstruction the stylus bar is restrained to oscillate upon a. fixed axis, or in other words the axis of oscillation of the st lus bar is alwavs in the same position wit respectto the casing and to the stylus bar irrespective of the wei ht of the sound box or the ppes sure to whic it may be subjected on account of an; inequalities or irregularities in the recor which isbeing to need.

The supporting p ate 9 is rigidly but rethe casing of the sound box 1, y means-of screws 16, and is arran ed so that the axis of oscillation of the sty us bar and the longitudinal axis of the st Ius socket are substantially in the centra lane of the diaphragm. When the sty us bar' is thus mounted, the movement of the end of the bar connected to the diaphragm will be in a direction perpendicular to the plane of the diaphragm.

Althou h trated on in its preferred form, many changes might be made in the construction shown without departing fyo the s irit of this invention or the scope e the 0 lowing claims.

.Having thus described my invention,what I claim and desire to protect by Letters Pat-' ent of the United States is:

1. The combination with a stylus bar, of

spaced yielding members free to bend but held against torsion, said members extendlug transversely of said bar, forming the so e support thereof, and restraining said bar to oscillate upon a substantially fixed axis.

2. The combination with a stylus bar, of spaced spring members free to bend but held against torsion said springs extending transversely of said bar, ormmg the sole sup ort thcreoi, and restraining said bar to osei late upon a substantially fixed axis.

3. The combination with a stylus bar, of spaced flat spring members free to bend but held a inst torsion said spring members extending transversely of said bar, forming or is preferably only su 'cient socket, an

this invention has been illus-' vrunner:

the sole support thereof, and restraining said bar to oscillate upon a substantially fixed axis.

4. The combination with a stylus bar provided with rigid lateral extensions, of yieldin members connected to said extensions an extendin transversely'of said bar, said yieldin mem rs forming the sole suppout for sai bar, and restraining said bar to oscillate upon a substantially fixed axis.

5. In a sound box, a stylus bar provided with rigid lateral extensions-and yieldin members connected to said extensions an extending transversely of said stylus bar forming the solcsupport for said stylus bar, said bar bein retained to oscillate upon a substantially xed axis.

6. In a sound box, thecombination with a diaphragm, of a stylus bar having a stylus spaced yielding supports for said bar extendin in substantially the same direction there rom' and transversel thereof, the ion 'tudinal axis of said soc 'et being substantially in the plane of the diaphragm.

7. In a sound box, the combinat on with a diaphra of a stylus bar having a stylus socket, an spaced yleldin supports torsaid bar extendin in substantially the same direction there mm, the longitudinal axis of said socket and the axis of oscillation of the said bar being substantially in the plane of the diaphragm.

8. In a sound box, the combination with a diaphragm, of a stylus bar, rigid lateral extensions arranged upon op1 osite sides of said bar and rigid therewit and yielding supports for said bar secured tralw ersely of 'said bar to said extensions and projecting in substantially the same direction therefrom, said bar being restrained to oscillate upon a substantially fixed axis.

9. In a sound box, the combination with a diaphragm, of a stylus bar, rigid lateral extensions arran d upon opposite sides of said bar and rigi therewith, and flat spring supports for said bar secured transversely of said bar to said extensions and projecting in substantially thesame directiontlferefrom, said bar beingrestrained to oscillate upon a substantially fixed axis.

10. In a sound box the combination with a diaphragm, of a stylus bar having a stylus socket, rigid lateral extensions arranged upon opposite'sidesof said bar and rigid therewith, and yielding supports for said bar secured transversely of said bar to said extensions and projecting in the same direction therefrom, the longitudinal axis of said socket bein in a plane perpendicular to the axis of osci lation of said bar, and said axis of oscillation being substantially fixed.

11. In a sound box, the combination with a diaphragm, of a stylus but having a stylus socket, rigid lateral extensions arranged upon opposite sides of said bar and rigid 180 therewith, an d yielding supports for said bar secured transversely of said bar to said extensions and projecting-in the same direction therefrom, the-longitudinal axis of said socket being in the plane of the diaphragm. 12. In a sound -box, the combination with a diaphragm, of a stylus bar having a styupon opposite sides of said bar and rigid 'lus socket, rigid lateral extensions arranged therewith, and yielding supports for said I bar secured transversely of said bar to .said

the same direction therefrom, the longitudisocket and the axis of oscillation of said late f "offset and a stylus socket, and spaced Hat said socket and theaxis of oscillation of the 'bar spaced therefrom and provided with 'a stylus bar, said stylus bar being so arranged a diaphragm, of a fixed member, astylus extensions and projecting in substantially being in the plane of thediaphragm.

14. In a sound bo x,,t'he combination with a diaphra m, of a fixed member, a stylus stylus socket and spaced fiat spring conncctions between the said fixed member and the that the longitudinal axis of'its'outer end and its axis of oscillation are in-the plane of the diaphragm.

15.111 a sound box, the combination with a diaphragm, of a fixed member, a stylus bar spaced therefrom and provided with an springs connecting the said fixed-member and said stylus bar. the longitudinal axis of said bar being in the plane of the diaphragm. 16.' In a sound box, the combination Wllll bar spaced therefrom and provided with an oll'set'and with lateral extensions. and yieldof the diaphragm between on said lateral extensions and the said fixed member, the

0 I an; connections extending toward the plane I axis ofoscillatiou of said stylus baebeing. substantially in the planeof the diaphragm. 17; Ian sound box, the combination with a diaphragm of a fixed member provided with a recessed edge, a stylus bar spaced therefrom and provided with an offset extending within said recess but spaced from said'fixednncmber, said stylus bar being further provided with lateral extensions,

substantially in the plane of the diaphragm.

18. In a sound box, the combination with 'adiaphragm, of a fixed member provided i I i i l and yielding connections between the said i with a recessed edge, a stylus bar spaced 1 therefrom and provided with an offset; extending within said recess but spaced from said fixed member, saidstylus bar being further provided with and resilient connections between the said extensions and the said fixed member, the axis of oscillation of the stylus bar being lateral extensions 1 substantially in the plane of the-dia hragm. 19. In a sound box, the combination with a diaphragm, of a fixed member, astylus bar spaced therefrom and provided with an ptl'set and with lateral extensions, and flatspring connections extending transversely l'of said bar and substantlally perpendicular to the diaphragm between the said lateral extensions and the said fixed member, the

axis of oscillation of said stylus bar being substantially in the plane -with the dia phragm.

20. In a sound box, the combination-with: a diaphragm, of a fixed member, a stylus bar spaced therefrom and provided. with an offset, and with a stylus socket. and lateral extensions, and yielding connections between the said lateral extensions and the said fixed n'lember, the longitudinal axis of said socketand-the axis' of oscillation of said bar being substantially in the plane of the diaphragm.

21. The combination in a sound box of a diaphragm a fixed member-provided with a recessed edge, a stylus bar spac'ed there from and rovided with an offset extended within saicl recess but spaced from said fixed member, said stylus barbeing further proyided-with a stylus socket and lateral ex-- tensions, and'yielding connections betweeh said extensions and the said fixed member.

the longitudinal axis of said socket and the, axis of oscillation ofsaid bar being subs I stantially in the plane of the diaphragm.

22. The combination in a' sound box of a diaphragm, a fixed member provided with a recessed edge, a stylus bar spaced therefrom and providedwith an otl'set extended within said recess but spaced from said fixed mcmber, said stylns bar being further provided. with a stylus socket and lateral extensions, and yielding connections between said extensions and the said fixed member. the longitudipal axis of said socket and the axis of oscillation of said bar being substantially in the plane of the diaphragm; and said springs being arranged .in a plane n'rpendicular to the plane of the diaphrgam. and in a plane of the axis of oscillation ofthe stylus b'ar.

23. In a sound box. the combination of a stylus bar, a fixed nn-mbe'r'constructed of laminations to form spaced slots, and tlat springs secured in said slots and to said stylus bar to form a support for said bar.

24. In a sound box, a'tixed member. a stylus baehaving'extensions formed of laminations arranged to form slots, and spaced flat springs secured in said slots and conbar having one I is to the plane of the said springs,

.and said bar being restraine nected to said fixed member to support said f 26. In a sound box, a'diaphragm, a stylus bar having one end thereof inacoustic contact with saiddia hragm, and spaced springs located "on opposite sides of said stylus bar rojecting in the same direction, upon whic said stylus bar is su ported upon the soundbox casing, the sai stylus bar being'located in aplane at right angles said springs ainst torsion being to'} oscillate free to bend "but held a upon a substantially fixed axis. 27. The combination with a sound box, of a, dia hragm, spaced springs connected with sai casing and projecting in the same direction therefrom, and a stylus bar having one end thereof inacoustic contact with said diaphragm, said.stylus bar having a stylus socket, and being mounted between and upon saidsprings, the longitudinal axis of said socket being at right angles to the axis of oscillation of said bar, 28. In a sound box, a stylus stylus socket, and spaced yielding members forming the sole support of said bar extending transversely oi said. bar, the longitudinal axis of the said socket being perpendicular to the axis ofoscillation of the bar.

29. In a soundbox thccombination with a fixed member of a diaphragm, a stylus bar having a stylus socket, and spaced yielding membersforming the sole support for said bar, the longitudinal axis of said socket being substantially and the axis of oscillation of the stylus bar in the plane of the diaphragm. a

30. In a sound box the combination with a fixed member, of a diaphragm,a stylus bar havin a socket, and spaced yielding members ormin thesole support for said bar, the longitu mal axis of the said socket and the axis of oscillation of the stylus bar being substantially in line with the plane of the diaphragm, and'the longitudinal axis'of the socket being in a'plane perpendicular to the axis of oscillation.

31. In a sound box, a diaphragm, a stylus bar, having. one end thereof in accoustic contact with said diaphragm and having a longitudinal stylus socket, spaced yielding perpendicular to the nected thereto and 'provid bar having a being members projecting in the same direction from said stylus bar between which said stylus bar is lo'cated and upon which it is supported upon contact between the stylus bar and diaphragm and the axis ofsaid socket being in alinement in a plane at right angles .to-the plane of the dia 'hragm', substantially midway between sai sprin 32., In a sound box, t ie combination with a diaphragm, of a stylus bar honetically conwith rigid lateral extensions,,and spaced flat springs oblong in transverse section connected to said extensions and formingthe sole support for saidstylus bar, said bar being movable about a substantially fixed axis only.

33. In a sound box, the combination with a diaphragm, of a stylus bar phonetically secured thereto, and spaced spring members oblong in cross section and holding each other against torsion forming the'sole supor't for said bar, said bar being movable about a substantially fixed axis only.

34. In a soundbox, the combination with a fixed member, of a diaphragm, a stylus bar spaced from said fixedm member and phonetically connected to and spaced yielding members extending transversely of said bar and toward the plane of said diaphragm. connecting said fixed member and said bar, said bar being movablsmbout a substantially fixed axis only.

35. The combination with a rigid member, of a stylus bar, and yielding means connecting said stylus bar to said rigid member, said stylus bar being restrained to oscillate upon a substantially fixed axis.

- 36. The combination with a rigid member, of a stylus bar, and yielding means connecting said rigid member and said bar and forming the sole support for said bar, said bar being restrained to oscillate upon a substantially fixed axis.

' 37. The combination with a stylus bar, of spaced yielding members forming the sole support thereof, said members being free to bend but held against torsion and said bar restrained ,to oscillate upon a substantially fixed axis. I

38. The combination with a stylus bar, of spaced 'yielditig members free to bend but held against torsion forming the sole support of said bar, and restraining su id bar to oscillate upon a substantially fixed axis, each of said yielding members being fixed at one end and free to yield'at its other end and connected at its free 39. The combination with a sound box casing 11nd stylus bar, of yielding meansfor attaching said stylus bar to said casing, means moiinted upon the casing for rendering one end. of saidiyielding means rigid, means carried by. the styalns. bar for rendersaid diaphragm,

end to said stylus bar.-

the sound box, the point of yielding means ing the other end of said ng the ends of rigid, the said means for hol said yielding means rigid bein spaced apart from each other for only a su cient distance 5 as? will 'allowwthe said stylus bar to oscillate without efiecting an actual en agement of 5 said meangfor holding said en s rigid.

40. The combination with a stylus bar provided with rigid lateral extensions, of

"yie1ding -members connected to said extenextensions,-, forming sions and extending transversely of said said stylus bar, said stylus bar being ref, to oscillate upon a substantially 41 The combination with a stylus bar provided with rigid lateral extensions, of

.,,yielding members connected to said exten- ,sions and extending transversely of said flojxtensions, and transversely of said stylus bar formingthe sole support for said stylus bar, said stylus bar bein restrained to oscillate upon a substantial y fixed axis.-

42; The combination with a stylus bar,

of a-fixed memlier constructed of; laminae tions to form space slots, and yielding members secured in said slots and to said stylus bar to form a support for said bar. v

'43. The combination with a stylus bar, of

80:9. 'member constructed of laminations to form a slot, and a yielding member secured in said slot and forming a support for said ar. 44. The combination with a stylus bar of 5 85 spaced yielding members formin the sole supporting member, yielding means, means independent of said attaching means for securing said yielding means to said supportfior rectieiisgin Letters Patent No. 951,12-7. Y

in. the Patent Ofiice.

the sole support for- Signed and sealed this 5th day of April, A. 1)., 1910.

ing member, and a stylus barsecured to said yielding means.

A6., The' combination with a support, of a supporting member, attaching means detachably connecting said support and said supporting member, spaced yielding members, means independent of said attaching means for securing said yielding members to said supporting member and a stylus bar secured to said yielding members.'

47. The combination with a member having a pair of spaced rigid arms rigid therewith, of st lus barprojectin' in the space between said arms. and a yie ding connection between each. of stylus bar.

48. The combination with a stylus bar, of spaced yielding members free to bend but said arms and said held against torsion, each of said members being fixed at one end and free at its opposite end and said members being connected at their free ends to said stylus bar.-

49. The combination with a stylus bar, of spaced yielding members free to bend but held against torsion, each of said members being fixed at one end and free at its opposite end and said members. bein connected at their free ends to said stylus ar forming the sole su port of said bar.

50. The comlimation with a stylus bar, of spaced yielding members free to bend but held against torsion, each of said members being fixed at one end and free at its opposite end and said members bein connected at their free ends to said st lus ar forming the sole support of sai bar and restraining said barto oscillate-upon a substantially fixed axis.

In witness whereof I have hereunto set my hand this seventh day of February, A. 'D. 8

ELDRIDGE R. JOHNSON. \Vitnesses:

ALs'roN B. MoUL'roN, 1 Timmy Conn KENNEDX.

It is hereby certified that in Letters Patent No. 951,127.,granted March 8, 1910, upon the application of Eldridge Johnson, of Merion, Pennsylvania, for an improvement in Sound-Boxes for Talking-Machines, errors appear in the printed specificationrequiring correction as follows: Page 4, line 28, after the word box the word casing should be inserted; same page, line 54, before the word socket" the word stylus should be inserted; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case I c. c. BILLINes, Acting Oomnaissioner of Patents.

yielding means ing the other end of said ng the ends of rigid, the said means for hol said yielding means rigid bein spaced apart from each other for only a su cient distance 5 as? will 'allowwthe said stylus bar to oscillate without efiecting an actual en agement of 5 said meangfor holding said en s rigid.

42; The combination with a stylus bar,

'43. The combination with a stylus bar, of

in. the Patent Ofiice.

the sole support for- Signed and sealed this 5th day of April, A. 1)., 1910.

ing member, and a stylus barsecured to said yielding means.

ELDRIDGE R. JOHNSON. \Vitnesses:

ALs'roN B. MoUL'roN, 1 Timmy Conn KENNEDX.

It is hereby certified that in Letters Patent No. 951,127.,granted March 8, 1910,

upon the 'application of Eldridge Johnson, of Motion, Pennsylvania, for an improvementin Sound-Boxes for Talking-Machines, errors appear in the printed specification requiring correction as follows: Page 4, line 28, after the word box the word casing should be inserted; same page, line 54, before the word socket" the vyord atylm should be inserted; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 5th day of April, A. D., 1910.

: [BELL] C. C. BILLINGS,

" Acting Commissioner of Patents.