US816995A - Talking-machine. - Google Patents

Description

N0.48'16,995'. v PATENTED APR.3,'1906.

B. A. PANGO-AST.

TALKING MACHINE APPLIOATION FILED ARR. 12. 1905.

g1 fit! ATTORNEY rrnrrnn sra'rns r rrrnn'r orinron.

EDWINA. PANGOAST, OF MUNTCLAIR, NEW JEHtillY, ASSIGNOR OF ONE-THIRD TO ELLSWORTH A. MASSACHUSETTS, ONE-THIRD Ti.) HORACE H AWT H 0 li NE, ()F 5% Pill NG FIELD, S H EBB E, (IF PHILA- DELPHIA, PENNSYLVANIA, AND ONE-THIRD TO JOHN O. PRES- COTT, OF MONTCLAIR, NEW JERSEY.

TALKING-MACHINE.

Specification of Letters Patent.

Patented April 3, 1906.

Application filed April 12, 1905. Serial No. 255.123.

heretofore followed faulty reproduction re sults from the failure of the style to freely track in the record. In addition to faulty reproduction this results also in unnecessary friction and wear both upon one side of the style and upon the corresponding side of the groove in which it operates. In overcoming these defects in preexisting structures I so construct and arrange the support for the reproducingstyle (suchas. the sound-box, the tone-arm, or the bracket in which the latter is mounted) as that the same shall operate freely inthc record-groove and freely and faithfully followits sinuosities without the objectionable friction above referred to and with a marked improvement in the quality of the reproduced sounds.

The invention is illustrated in the accompanying drawings, in which- Figure l is a plan view, partly in section, of a portion of a talking-machine, illustrating my invention. Fig. 2 is a lan view of the sound -boX, tone-arm, and? its support as shown in Fig. 1; and Fig. 3 is a diagrammatic view hereinafter referred. to.

Referring to the drawings, in which similar letters denote corresponding parts, A designates. the sup 'orting-bracket for the tonearm and soun -box. This is provided at its upper end 'with an adjustable annulus B, carrying the collar 5, which coacts with the end of the reproducing-horn b.

O designates a tubular elbow having a pinand-socket support in the bracketA and communicating with the interior of the collar 6.

D designates a two-part sleeve, one part (1' whereof 1s of such size as to telescope within the end of the tubular elbow C, where it is pivotally supported by pins or screws (1. The other part if is arranged at an angle to the part d and is preferably slotted at d" to receive a set-screw d, whereby the end of the tone-arm E, telscoped within such part (i, may be detachably secured in position.

The sound-box I may be of any desired construction, and its plane may be parallel with the axis of thetonc-ar1n E, or, as shown in 2, at an angle thereto. The latter is preferred, as it is thereby possible to arrange the style in direct alinement with the center upon which the pull of such style falls. It is provided with the usual rcproducing-stylef, coacting with the groove in the record-diskf.

In Fig. 3 I have illustrated diagrammatically the structure above described in its relation to the record groove. Such groove, comprising lateral undulations, opposes the free movement of the style therein to a degree governed largely by the angles of the lateral undulations, and the point of support of the tubular elbow or other device whereby (indirectly) the reproducing-style carried. Such o pposition besid throwing unnecessary friction and wear on both the style and the recordgroove, precludes thefaithful tracking of the style, and the result is imperfect reproduction. In the construction herein disclosed this is overcome, or at least minimized, by the mounting of the tone-arm at an angle to the tubular elbow by which it is supported. Thus in said figure, in which an exaggerated record-groove is illustrated, a indicates the point of coaction of the style and the groove, and a indicates the pivotal point of the elbow. The line (1 indicates the direction of the pull on the point a in the mechanisms heretofore employed. 'Iheoretically the further movement of the record is blocked. Practically, however, the angles of the undulations not being so pronounced in the ex aggerated diagram, the record continues to move, but great strain. is thrown both on the groove therein and on the style, resulting in destructive wear and im )erfect reproduction. The direction of pull on the point a, where the angular method of mounting heroin disclosed is observed, is represented by the line (1. Here, as will readily be understood,

. and as a direct cunsequence of this'and oftha faithful trackmg of the stylusthe engnaucmm grea raprovgd 1n punt-y and; mda m from foreign sounds.-

Wlmt I claim, and desire to protect by Let;

tel-s Patent, 15-- ataiizing-machine, the csmbinaoiaif with a movabl mounted mbular lsuppof {if a, alls-arm an angumi' slwvs mmneciing th bprmi't movement of the tone-jsAm--re1ative}y s; haiking-machine; the cembinatisn with. a, msvabiy-monmbed fiiibuiar suppm' t a? an angular slew =3 pivozaally coinacted to said support, a tone-arm detacha'bly secured to said sleeve, and a seund bax connected *to said t0ne-s-rm substantia31y as 'descxihed.

In a talking-machine, this combin -flan & mvuvafviymmunfised tubular support, of

PM two-p311; sleeve afiiachoi 0 Said sigpport,

one of 1&2 parts being a: an angle to theother path, '&r 1d an attached spu'nc'i-bbx 8115i time um, sald tone-pun bemg secured to sa1d sleeve, substantlullyasdgsctibd;

4., In a .t-aik l'ngmaohine, the 'combinatioh 'with awmovajblywmoumediubihlar e12; port, of

atwmpart sleeve pivotally attache to said aupggrt, one of its parts being at anangle to the nther part and an attached sound-box landhtqnemrm' said tone-arm being dammi- @351? cnnected with gai fi sleevfa, substantially a sde'scri bed; Y

"5; In a taikizig-machin, the combinationwith a movabij-moimted fiubuiar suppei -t, of

-a"two part sleeve pinata-Hy connected t'q said supparfb, (me of its parts 'bing aqan ang1e to theother part, a sound-box, and a tone-ann connecting'the sound-box and said sleeve;

substantially as described.

This specification slgned aIid--witnessd 6th day-0f April, 1995.

, EDWIN -A. MNGQAST;

' Witnesses-1': V

S. O. EDMONDS, L. N01211:.

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