US1046414A - Phonograph determining device. - Google Patents

Description

T. A.ABDIS0N. PHONOGBAPH DBTBRMINING DEVICE.

APPLICATION FILED JUNE 2, 1910,.

1,046,414. Patented Ina-@3,1912

n if; ran sanfrnnr orrrcn THOMAS A. EDISON, OF LLEWELLYN PARK, WEST ORANGE, NEW JERSEY, .ASSIGNOR, BY MESNE ASSIGNMENTS, T0 THOMAS A. EDISON, INCORPORATED, 0F WEST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY. l d

PHONOGRAPH DETERMINING DEVICE.

Specification of Letters Patent.

v Patented Dec. 3, 1912.'

@riginal application led November 13, 1903, Serial No. 180,998.' Divided and this application tiled .Tune 2,

1910. Serial No. 564,581.

To fait whom it may concern:

`Be it known that I, THOMAS A. EmsoN, al citizen of the United States, and a resident of Llewellyn Park, West Orange, Essex county, New Jersey, have invented romain new and useful Improvements in Phono a h Determining Devices, of which the fol owing is a description.

. 4My inventlonrelates to determining devices for phonographs or talking machines, this application being a division of my application Serial No. 180,998, filed November .13. 1903 for apparatus for recording sounds.

" tion and the record surface is'revolving.

The supporting device is preferably a ball of sapphire or other jewel. It is to be understood that the weight of the recorder is borne by this ball which rides upon the surface of the rota-ting' record blank, the

depth to which the recording stylus may enter the surface of the blank depending upon the maximum distance the stylus may project below the supporting ball. It is lmportant in recording that the position of the supporting ball or ldetermining device may, be adjusted while the machine is runi. ning, since the depth of cut of the recording stylus may require adjustment during operation to conform to the varying conditions which may be met.

In order that my invention may be better understood, attention is directed to the accompanying drawings forming part of this specification, in which- Figure l is a bottom plan view of a. recorder showing the preferred form of my improved determinin device. Fig. 2 isa sectional view thereo taken on line 2-2 of Fig. 1. Fig. 3 isa sectional view taken on line 3--3 of Fig. 2; and Fig. 4 is a front view* of the body of the recorder.

In 'all of the above views, corresponding parts are represented by the same reference characters.

The hollow tube 1 which is connected to lor is a continuation of the usual horn or funnel is carried by the usual support, not shown, and has ears 2, 2, between which 1s pivoted the head or barrel 3. latter is secured the sound box or body 4 to the lower face of which is connected the dlaphragm 5. Across the lower face of the body and below the diaphragm is the tracking lever 6 which serves as a support for the ball 7, which latter rests upon a record surface shown in Fig. 2 as a section of a cylinder and supports the body, allowing it to oscillate about the' pivot between the ears 2, 2and accommodate itself to all large irregularities in the surface of the blank. Theball 7 is of a comparatively small curvature, but is suiicient to permit universal adjustment and is preferably made of a jewel of which sap hire seems to be the best material, as it oes not have any appreciable eiect upon the record blank; furthermore, it is susceptible to taking a high polish so that its passage over the record will not scratch or .otherwisel injure the same. v

The lever 6 is connected to one end of the body 4 by means of a screw 8 which passes through a slot 9 formed within an elastic extension 10 of the lever, whereby an elastic connection is formed so that the lever, -together with the ball 7, may be adjusted in To the l relation to the center. of the diaphragm in tive osition of the ball 7 and the body may v b e a justed when the-machine is running.

The knife or recording stylus 13 is attached to the diaphragm adjacent to its center and onthe same line of travel as the ball 7 by means of a support or foot 14. The foot 14 is secured to the diaphragm by a suitable cement, such as melted shella'c. The foot 14 may be connected to one end of an elastic reed 15, the other end of which 'is secured to a pillar 16 formed upon a continuation of the body 4. It will be understood that my invention'is not limited to the exact construction shown, but that it comprises all eqtpivalent constructions and 1s only limited y the appended claims.

' Having-now described my invention, what claim and desire to protect by -Letters Pat- .ent is as follows:

l. Inay recording device for recording 'soundlwavea the combination with a body,

fof'a' diaphragm carried thereby, a lever having an elastic extension at one'end, means securingv said elastic extension to said body,

a support carried-by said lever adapted to engage the record, and means for adjusting lthe other end of said lever'relative to said body, 'substantia ly as described.

2..Ina reco ding device "for recording sbund waves, the combination with a body,

of a diaphragm carried thereby, support-ing means having'an elastic connection with said body and adapted to engage th'e record, and

hieans for adjusting the said supporting .means relative to lsaid body, substantially as described.

' 3. In a recording device for recording ysound waves, the combination with a body,

of a Ydi phragm carried thereby, supporting means having an elastic connection withv said body 'and provided with a ball adapted to engage the rec d,'and means for aldjusting the said suppo ting means relative to said` bod-y, substantially as described.

4. In .a recording device for recording sound waves, the combination with a body, .of -a diaphragm carried thereby, a lever hav- 4ing' at one end an elastic connection with said body, la supportlcarried by said Alever y and adapted to engage the record, and. a

screw'mounted' in athreaded opening in said' body, the extremityof said screw engaging the other en d of said lever'for adjusting the position of the latter relative to said body,

' substantially as described.

N 5.2In a recordingl device for, recording sound Waves, ,thel combination with a body,

ofl a diaphragm carriedthereby, a lever hav-v i'ng at one end an adjustable connection with said body, said connection permitting longitudinal adjustment of said lever, a supi port carried-by said leverI and adapted to engage the record, and means for adjusting the other end of said lever relative to said body, substantially as described.

6. In av recording 'device for recording sound waves, the'combination with, a body,

of a diaphragmcarried thereby, a lever having at one end an adjustable elastic connection'with said body, a .support carried by said lever and adapted to engage the record,

and means for adjusting the other end of.

said' lever relative to said body, substantially as described.

'1 In arecording device for recording sound waves, the combination with a body,

of a ,diaphragm carried thereby, a! lever hav' ing an elastic slotted portion at one end, a

screw passing 'through theslot in said lever for securing the latter to said body, a support carried by s'aid lever and adapted to enf g'age the record, and means for adj ust-ing the other end of said lever relative to said body.

8. In a device for recording sound waves,

1 the combination with abody, of a dia-

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