US904884A - Phonograph-reproducer. - Google Patents

Description

I. D. LEWIS. PHONOGRAPH BEPBODUOEB.

rum-non rnmnnn. 1a, 1908.

904,884, Patented Nov. 24, 1908.

423,383, wherein it is proposed to mount to said lugs.

. 1s a description;

'phragm; the other end of the lever 9 is en- =larged anda stylusholder 11 is rotatablyl UNITED sT TEs PATENT OFFICE.

FRANK D. LEWIS, ()F

ELIZABETH, NEW JERSEY, ASSIGNOR TO NE\\' JERSEY PATENT COM- PANY, OF WEST ORANGE, YE JERSEY, A CORPORATION Ol NEW JERSEY.

PHONOGRAPH-REPRODUCER.

Specification of Letters fatent. Application filed April 15, 1908. Serial No. 427,224.

Patented Nov. 24, 1908.

To all whom it may crmcemf I Be it known that I, FRANK D. LEWIS, a i citizen of the United-States, and a resident i of Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Phono- I graph-Reproducers, of which the following 1 My invention relates to phonograph reproducers which are provided with a pair of reproducin Styluses adapted to track records of di erent pitch, as, for example, records of one-hundred and two-hundred threads perinch respectively, said styluses being mounted in a support which may be moved or shifted so as to bring either of said styluses into and out of operative position with respect to the record surface as desired; 'Such a reproducer is disclosed and broadly claimed in an application filed by Peter \Veber, March 26, 1908, Serial No.

Styluses of this character upon separate I levers which are separately pivoted to a support which is rotatably mounted upon the floating weight of the reproducer.

According to the present invention, only one stylus lever is used and the same is pivl oted directly to the floating weight in the usual manner, and a support for both i stylus'es is movably mounted on or carried l by one end of said lever.

| l l l In order that the mvention may be more fully understood, reference is hereby made to .the accompanyin drawing of which Figure 1 is a side elevation, partly in section, of a phonograph reproducer constructed in accordance with my invention; Fig. 2 is a plan view of the stylus lever of 1 Fig. 1, and Figs. 3 and 4 are side elevations of modified forms of stylus lever and stylus 1 sup ort.

T e reproducer shown comprises the usual sound box body 1 and diaphragm 2 clamped E therein by the ring 3, the floating weight 4 g being pivoted at 5 to the block 6 which is 5 supported b the engagement of the screw 7 l with the be y 1. There are one or more lugs 8 depending from the weight 4 and the stylus lever 9 is pivoted at or near its center One end of said lever 0 is conlink 10 to the center of the dim I nected by a l shoulders l holder provided with a lever, said stylus holder bemounted in a circular opening formed there-' in. The lower portion of the holder 11 is formed with a pair of sockets, one of which receives a stylus 12 suitable for operatin upon an ordinary record of one-hundred threads per inch, and the other socket rcceives a stylus 13 adapted to operate upon a record having two-hundred threads per inch.

There is a pin 14 extending transversely through the st 'lus holder to enable the same to be readily turned through an angleof 180, the movement of the holder in each direction being limited by the engagement of a stop pin 15 with the body of the lever, the end of the lever being slotted as shown at 16 to allow a-movement of the stop through an angle of 180. The stylus support is held in each of its operative positions by frictional engagement with the st lus lever which is produced by the action 0 a s ring washer 17 which surrounds the reduce upper end of the stylus holder and bears against the stylus lever and a nut or head 18 secured to the said reduced end.

In the device of Fig. 3, the end of the lever 0 is reduced to form a stud 19 and the stylus holder 11 is rotatable upon said stud, being held in frictional engagement with the shoulder 20 of. the lever 9 by the spring washer 17 and nut 18 threaded on the end of the stud 19.

In Fig. 4, the stylus holder 11 is mounted upon a stud 21 extending transversely with respect to the lever 9 and is rotatable thereon through an angle of 180, its extreme posi-' tions being determined by the engagement of 22, formed 'on the stylus holder, with the stop 23 carriedtby the lever 9.

It will be noted that in all of the structures shown a simple rotary movement of the stylus holder through an angle of 180, will convert the reproducer from an instrument suitable for operating upon records having one-hundred threads per inch to one for o crating upon a recor and vice versa.

Having now-described my invention, what I claim is:

1. In a phonograph reproducer, the combination of the diaphragm and floating weight, a lever pivoted to said weight ant connected to said diaphragm, and a stylus an of styluses and carried by said ing movable so as to bring either of said styluses into and out of operative position with respect to the record surface, substantially its et forth.

:2. In a phonograph l.'Ll)l.'Ul.lllCl the comhinution of the floating weight, diaphragm, stylus lever pivoted to said weight and connected to said diaphragm, and a stylus holder provided With a plurality of styluses and I rotatably mounted upon said lever, substantially as set forth.

3. In a phonograph roproducer, the combination of the floating weight, diaphragm, 1 stylus lever pivoted to said weight and eonnee-ted to said diaphragm, and a stylus holder provided with a plurality of Styluses,

rotatahly gnounted upon said lever and frictionally held thereto, substantially as set l'orth.

4. In a phonograph reproducer, the com l inati0n of the floating weight, cliapl'iragni, stylus lever pivoted to said Weight and oon- .neoted to said diaphragm, a stylus holder provided with a plurality of styulses and rotatahl moun ed upon said stylus, and means for limiting the angular movement of said stvlus holder in both directions, subgiantially as et forth.

f This specification signed and witnessed l this 13th day of April 1908.

FRANK l). LEVIS.

Wit nesses:

Denos HOLDEN AbmA it. Knuth.

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