US650409A

US650409A - Graphophone reproducer and recorder.

Info

Publication number: US650409A
Application number: US73651499A
Authority: US
Inventors: David L Minier
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-11-10
Filing date: 1899-11-10
Publication date: 1900-05-29
Anticipated expiration: 1917-05-29

Description

No. 650,409. Panama may 29, wma.

n. L. valmm.- GBAPHOPMONE REPHGDUGEB WD REGRDEH.

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2 Sheetsheet i,

(No Model.)

' No. 650,409. Paume@ may 2Q, ma.,

v n. L. Mmm; f

GRAPHUPHONE REPRUDUCER AND EEGRDER.

(Applicatiun led N ov. 1.0, 1899.)

l 2 snem-sheea 2 (No Model.)

Wifgzsses v UNITED STATES DAVID MINIER, or

'risica Farrar ITHACA, vNEW YORK.- A

'sPEcIFIcA'rIoN formingipart of Letters :ment No. 650,409, eared may 29,1900.

lApplication filed November 10, 18919. Serial Nol 738|4- (N0 modem the following is a speciiication.

This invention relates to graphophones in general, and more particularly to the reproy ducers thereof; and it has for one object to provide a construction in which the soundbox will be supported in a manner to hold the stylus lightly in engagement with the record p and to permit adjustment of the sound-box to correspondingly move the stylus transversely or peripherally of the record.

f A further object of the invention is to pro- ;vide means for raising and lowering the sou ndbox and also to provide means for varying the tension of the diaphragm.

In the drawings forming a portion of this specification and in which similar numerals of reference designate like and corresponding parts in the several views, Figure l is a side elevation of the sound-box with the horn and the supporting-bracket, portions of the bracket being in section, and showing also the end of a record. Fig. 2 is a section on line 2 2 of Fig. l. Fig. 3 is a bottom plan view of the sound-box. Fig. i is an elevation of the ring by means of which the diaphrag-m is clamped to the sound-box. Fig. 5 is the upper ring, against which the diaphragm is clamped. Fig. G is a top. plan View of the sound-box with thevsound-tube removed and with the diaphragm-clamping ring omitted. Fig. 7 is a partial central section of the soundbox, taken through one of the plugs for holding the tension-cord. Fig. 8 is a perspective view of the collar, which is slidably mounted uponvthe sound-tube.

Referring now t0 the drawings, the present invention comprises a sound-box 10, to the upper face of which is xed an L-shaped sound-tube 11, having a collar 12 fixed thereon and through the medium of which the tube and box are supported.

The collar 12 has two oppositelydisposed pairs of

arms

13 and 14, havingthreaded perforations for the reception of clamping-screws,

The block 16, which is disposed at the under side of the sound-tube, has a conical re-f` cess 17 therein, in which is disposed the conical endof a screw 18, which is passed through a threaded opening in an arm 19 of the boxsupporting bracket. This bracket is mounted on a shift-rod 2O in the usual manner and at its upper end has a second arm 21, to which is fixed the end 22 of the horn. The horn is connected with the sound-tube 11 by means of an elastic tube-section 23, so thatthe soundbox and sound-tube may have movement independently of the horn.

In order to permit movement of the soundbox toward and away from the record and longitudinally thereof, the block 15, which is disposed upon the uppersurface of the soundtube, has a slot 24, which extendslongitudinaliy of the tube and in whichl is disposed the with a ring 26, formed integral with the arm 19 and encircling the sound-tube. The pin 25 is adapted for adjustment in the ring 2G and may beheld against movement bymeans of a set-screw 27.

end of a pin 25, having threaded engagement In order to raise and lower the sound-bor;`

' a lever '29 is mounted upon the rod y20 and.

bears at its opposite end against a finger 30, fixed to a rocker 3l, which is pivoted to the box-supporting bracket, as shown in Fig. 1. Against the rocker 31 lies one end of a .rocklever 32, lying in slidable contact with the end of an arm 33, which is secured to the collar 12. Thus when the linger-piece 29 is depressed the arm 33 will swing upwardly and will raise the stylus from" the record.

Attached tothe block 15 and extending upwardly and rearwardly therefrom is an arm 35,'pivoted to the upper end oi' which is a pendant 36, having a weight 37 at its free end. A threaded rod 38 is pivoted to the pendant 36 and is passed through a perforation in the arm 35, this rod 3S having an encircling heli- -cal spring disposed between the pendant and the arm and having also a thumb-nut 40 upon its free end and which nut is adapted to be screwed upon the rod to impinge the arm 35 and draw the Weight in the direction thereof. Nhen the nut is turned rearwardly, the helical spring is released and the weight swings outwardly. lith this structure it will be which are ad ap ted for en gagement with blocks A15 and 16.

seen that by manipulation of the thumb-nut i0. In a grap-lophorie, the combination with a bracket and ai supportpivotally mounted therein, of aL sound-box mounted. upon `the support and comprising v to the tube; arms carried by the collar and adapted for mijustable connection with the support, a xed tion with the first tube,

'ingfweight adjustebly connected with the tube havingiiexible connecalnd a counterbalenesupport. l

neotedtherewith, a. bridge engaging the diaphragm, a Stylus mounted Aupon the bridge,

a tube, a collar fixedr 1,1. A sound-box having a, diaphragm conv coi-ds engaging the bridge and the box and vmeans fonvztrying thetensionof the cords Lo 1g Vary the 'pressure of the vbridge against the 'diaphragm and alter the tensionof the diaphrngnx.'v 1 v v.

In testimony that I claim the foregoing as my own have hereto affixed my si.',fgfnatureicL eo the presence of two Witnesses.

A v DAVDL. MNER. itnessesz 1 (1E. HELM,

MILDRED vimmunev