US985736A - Phonograph-reproducer. - Google Patents

Description

F. L.DYER.- PHONOGRAPH BEPBODUCER.

APPLIGATIQH FILED HABJB, 1909.

Patented Feb. 2s, 1911.

0" wie 02.'

' 'lrntrrED saires FRANK L. OF UPPER MONTCLAIR.

l PATENT COMPANY, OF NEST- ORANGE, NEXV JERSEY, A FORPORATION F NEW A JERSEY.

To all whom 'il'. may concern:

v lie it known that I. Farin .L Dri-suya citizen o the UnitedV States, and a resident ot Upper Montclair, county of Essex, and State or" New Jersey, have made a certain neu' and useful Inycntion in Phonog'raph- Reprodueers, of which the following is a specification. i

Mv invention relates to phonograph rc producers and the object thereof is particularly to improve the construction described and claimed in the application of Louis A.

Chipot, Serial No. 474.843, tor phonograph vreproducer styluses, tiled January 2S, 1909. In the application ot` said Chipot, a phonograph stylus is provided, which is formed with diterent contours'in planes at right angles to each other, or at some different angle to each other, so that the stylus as viewed in one direction is' narrower than when vien-ed in the other direction. The cross section of the stylus in one direction is of suitable size ande-.form for tracking a record groove'having 'certain characteristics, and its cross section in the. other direction is of suitable size and form for tracking a record groove having different characteristics. The stylus was designed particularly for use in tracking record grooves haring respectirely 2Q() threads to the inch and 100 threads to the inch, althoughL 0f course, it is obvious thatv it might be used in connection with record grooves-having diterent pitches or differentcharacteristics by modifyingthe Contours of the stylus above referred to. This stylus was mounted liv the said Chipot in any suitable manner so thatit could be shifted readily through an angle of 90 de- -grees, or through whatever angle iras requisite to permit the stylus to be used-for tracking' the two records of di'erent. characteristics above referred to. The st vlus was thus adapted to be used in a single reproducer comprisingIr a diaphragm. sound box:` floating weight, and a single stylus lever, upon one end of which is preferably mounted a holder for the :f\''lus. In this preferred form. the holder is rotatably mounted upon the lever, so .thathjr rotation ot the holder, either contour ma;Y lieprcscntcd in position fort-racking the desired record. Tn my improvement upon-this construction. l provide arms or projections upon the said holder, which calibe easily manipulated to rotate the holder.

and stops or projections'upon a relatively Specication o Letters Patent, Application filed March 18. 1909. Serial No. 454,298.

raTuur orrron NEW' JERSEY, ASSIGNCR T0 NEVI JERSEY PHONOGRAPH-REPRODUCER.

Patented Feb.. Z8, 1911.

fixed member, as the floating weigl'u adapted to co-act with the arias upon the stylus holder in order to limit. t.. movements of he holder and properly p ition the stylus for tracking the different. records.vr I also preterably provide indicating means to designate the particular record with which the I vl'us is in position to coact- Wiien one ot the arms above described in contact with its approprmtestop. Y f

In order that the invention rac-.y he ,more fullv understood, reference is made to the accompanying drawing: in which- Figure 1 is a side elevation, partly in section, of a. phonograph reproducer constructed in accordance 'with my invention. and Fig. 2 is a bottom plan view showing the stylus lever, stylus helder and stylus, together with the arms u pon or integral with the stylus holder, the' st-fs upon the 'lil-,ating weight cto-acting therewith. and the indient# ing means.

The. reproducer slt-:ara in Fig. l comprises a sound box body 'l of the usual form. and the diaphragm 2 .secured between ,gusl vitets 3 b v a clamping ring l threaded in said body, The floating Weight. 5 is pivoter. at 6 tothe pivotblock 7, which is pivot-2d to the body 1 by the usual sol-ev: S, and the floating weight carries the depending lags 9, in which is mounted the horizontal screw or stud 10 on which the stylus lever 11 is niroted. end of said lever is eonnectedia the cent1-r of the diaphragm 2 by the usual link 1:2 and head 13. The, stylus hoider 14. is pivotallj: connected to the end of the sirius lever distantfrom the link 12in suitable manner. In the construction shown. the stylus holder is rotatably mountt d within :Lrecess or passageway in the st)l lus lever 1t in which it closely fits, the st vus holder 14 haring integrally formed th renith as. an extension thereof the screw l5. spring member or resilient. Washer 16 is slipped over this .threaded stud 15 Wh en tie st vlus holder is in position in its recess in the stylus lever. when,

bore of the o lPreferably. the holder has formed integrally therewith two ai'ins 1S and 19, which, in the ease of a stylus having its two distinctive contours in planes at 90 degrees apart from each other, would preferably be mounted at an angle.of 90 degrees apart. These two arms are adapted to co-act with the Contact with the Stop E21. the stylus is positioned to track a record having 100 threads to the inch, and when rthe ai'in 1S in coiilimit.. the movement, ot the holder in either tact with the stop 20 that the stylus has been en. vAnnA turned so that it is in position to track a record having 00 threads to the inch. It

is` 'of course, obvious that the arms 1S and 19 either contour beingr in position to track a might be located :it different angles. and that the. stops 2O and 21 might be diilereiitly situated, if the relation between the two contours of the stylus and the position thereof when the arms are in Contact with their stops, is observed. It is, of course, also obvious that but. a single arm might be used if the two stops were so positioned as to co-act therewith to properly position the stylus for tracking the two ltypes. oi'irecords. vWith *he cmstfiietm shown, the rms 18 and 19 Q 'Y f. Y 985,736

form convenient means for easy manipulation by the operator. The stylus 22 may be of 'any suitable material such as sapphire,

and is cemented or otherwise secured in a 35 socket formed inthe holder 1L?.

Having now described in v invention` what l claim and desire to secure by Lettei's'Patent is as follows:

ln a phonograph reproducen in eoinhiua 10 movable therewith` and stops on said tloat- 45 ing weight one hundred and eighty degrees apart adapted to eo-act with said arms to direction. and a stylus carried by said holder an ang-le of iinet`r degrees from each other,

certain type of record groove when the 'appi'opi'iate aria is in Contact with its eti-acting top. :substantially as described. h

This specification signed and witnessed this 16th day of March, 1909.

FRANK. L. DYER.

lVitnesses.

Dim SMITH,

i Contes of this patent. may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D.

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