US914826A - Gramophone. - Google Patents

Description

L. T. HAILE.

GRAMOPHONE. APPLIOATION FILED JULY 8. 1907.

Patented Mar. 9, 1909.

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UNITED snares Parana onnion 'LUTEER T1 HAILE, OF PHILADELPEIA, PENNSYLVANIA, ASSIGNOR, BY; MESNE ASSIGIL MENTS, TO HAWTHORNE & SHEBLE MANUFACTURING COMPANY, 6F PHlLADELPHIA, PENNSYLVANIA,,A CORPORATION OF PENNSYLVANIA.

enanornonn.

fio.914,826.

To all whom it may concern:

Be it known that I, LUTHER 'l. Hume, a,

, citizen of the United States, residing in the the known type of sucli machines, for the performance of that function. Advantages flowing from my in ention, in the perform ance of that function by means distinct from the record-tablet itself are manifold, chief of which are that considerable of the weight of the sound-box mechanism is no longer borne by the record-tablet, resulting in its soundgrooves bein less worn by any given amount of use of t e machine, and also tending largel to com ensate'for inequalities in the recor and tie needle has less, if any,

scratching against the non-vibration producing bottom of the sound-grooves; and last, but of equal if not greater importance, the needle'is kept in closer contact with the s de -walls of the sound grooves, resulting in 1mparting to it stronger vibratory movements and consequentlyeffectmg like vibrations of the sound-box diaphragm and consequent louder and clearer tones therefrom.

" In the accompanying drawings wherein Figure 1 is a side elevation, and'Fig. 2 a section on line '22 of Fig. 1, is shown my invented mechanism as applied to a known type of gramophone, only so much of the latter being shown as is necessary to understand and apply my invention thereto.

Referring now to said drawings: 3 indicates a gramophone cabinet containing, as usual,

the main actuating shaft 4 for the rotating turn-table 5 which operatively supports the record-tablet 6; and 7 indicates a lgnown type of sound-boxmechanism with its stylus or needleS, while 10 indicates a bracket arm" fixedly mounted on the side of thecabinet 3, and supporting the sound-conveying tube 9 which directly, in some types,

andindirectly Specification of Lettexls Patent. Applicationfiled July 8, 1907. Serial No. 382,675.

Patented March 9, icon.

in other types, carries on its smaller and inlet end the diaphragmholderor sound-box 7 and its adjunctive parts. The bracket arm l0v has a yoke or other analogous bearing 12 to enable the sound-conveying tube 9 to freely swin laterally in a short are of a circle,as usua, to enable the. sound-box mechanism to traverse the record radially, from rim to center thereof, and operatively contactwith the spiral sound-grooves therein, w iile such record is being rotated by the main actuating shaft as usual, in'thc operating of the gramophono. My device may be applied to any form of that type of talking machine havim a horizontally disposed rotatable record-tablet.

My added device, I will now describe by reference to the drawing. A supporting; bracket '14 is shown mounted on the lower part of Lheusual bracket 10, though, it preferred, it may be mounted independently thereof and on the side wall of the cabinet 3.

On the free end of the bracket 14 is fixedly supported a small llat plate 15, an essential of which is that it shall. be supported on an incline relatively to the horizontal plane of the turn-table and record-tablet, the incline downward being toward the center of the turn-table, in the direction of the lateral arolihe swing of the sound-box mechanism and the sinind-corweying arm whicl'i carries it, so

1o consl'ilutc an inclined plane relatively thereto. Although i have shown this plate 15 lixedly supported on the free end of the bracket 14, it is obvious that it maybe mounted thereon so as to be adjustable vertically, such asby a pin playing in a slot in the end of thebracket is, and controlled by a set screw or other analogous means so that.

not only the vertical height but the angle of inclination of the plate 15, relatively to the.

tablet, may be regulated if desired. The element, co-acting with the inclined plate, in my device, to accomplish the object sought, is a vertically-sliding rod 16, mounted in a suitable bracket 17 (lependingly supported from tnc sound-conveying tube; the bracket carrying a pair 'of parallel earplates 23, through holes in both of which the rod 16 is free to move vertically, and between which plates a coiled spring 18, encircling the rod,

is supplied to bear against a pin 19 to exert aconstant tendency to depress the rod vertn cally. The lower end of the rod 16 is divided J 8.1120 with a nin zlihetween thel divided ends toefi'ord a bearin yfor asmall friction wheel I trolled rod will then be resting on the face of.

22, preferably ,rubber tired, end which is thus kept in constant contactwith the upper face of the inclined late 15.

The operation of .t e device is as';follows Rotating movement in a horizontal plane being given to the sound-grooved recoxggl-tah:

let, and the point of the stylus or needle brought into operative contact relation thereto, the friction wheel of the spring-conthe inclined late .ctor near the "highest point thereo r The needle, in the o e'ration of. the machine, shouldmove radia ly over the record in a direction from rim to center thereof; the sound-conveying arm which supports and directsit'in such movement, Wlll perform that function by a short arc-like H a certainnnd positive manner by the action ofthe s ring-actuated friction. wheel co-act. ing wit swinging movement in ahoiizontal plane, in

the inclined lane ;so that durin the rotation of the ta let the movement 10 stylus over the tablet is rendered certain and ositive, Without any aid-from the record 1tsel f,as before relied on, and moreover the needle is ke t in close operative contact with the walls 0 the sound-grooves on the tablet;

The distinctive princi is embodied in the device is'the revision 0 means such as by a spring-contro led sliding rod, causing a'friction wheel to bear against an inclined plai'ie,

the wheel being carried by the tubular soundconveying arm (ca ing the sound-box and stylus) causing it to ear in a vertical direction against thezface of the record and also to impart. a swinging lateralniovgnient to such sound-conveying arm and its adjunctive" sound-box and stylus. Hende I-do not wish to confine myself to thespecific mechanism 'described embodying thisprinciple of con-.

struction and operation, but to include any obviously equivalent substitution therefor same result.v w Having thus described my invent1on, l

operating on the same principleto effect the claim as new and .gagement with said inclined I eieesie desire to secure-by Letters Patent:'

. 1. In e talking machine, the combination 56 of e holder for a disk scund-rewrd and devices for rotating the same and the record thereon, a support, reproducing mechanism including. a stylus pivotally mounted thereon, andjmeans independent of the so'und-record and its driving device for yieldingl 'pro' pelling said mechanism in ,.a plane su' stantially parallel withthe surface of the soundrecord so that the st lus thereof may track in and be restrained hy tlle record-groove 60 tln'oughout the several convolutions thereof,

said means consisting of two arts one moving with said mechanism an the other etetionery with respect thereto, one of. said parts hevin an inclined surface and the 85 other of sai arts having a roller enacting; with said inclined surface, substantially as set forth. y 2. in e talking machine, the wornhination 'of s, holder for s disk sennd record and de ,70

vicesior r-otet-ing thesameand the record thereon, a suppert, reproducing mechanism including stylus pivctally mounted there in, and means independent of the sound-tree 0rd and its driving device f0r-yieidingly-propelling said. mechanism inc, plane substantially nereilel with thesnrlejce cf the sound recorc so that the stylus thereof may track,

in and be restrained by the-irecord groove throughout the several ccnvclntiensthereof; said means consisting of. two pertscne heirs ing-a surface inclined relatively vijheg filiif-i 'face of the sound-recorcl end the other 132%)-

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