US951781A

US951781A - Phonograph-reproducer.

Info

Publication number: US951781A
Application number: US20?54004A
Authority: US
Inventors: Robert Head
Original assignee: Individual
Current assignee: Individual
Publication date: 1910-03-08
Anticipated expiration: 1927-03-08

Description

TTED STATES ROBERT w. 0I m YGBX. I. Y.'

PEOGMPH-BBPBODUOER.

To allwhmn it may concern;

Be it known that I, Roiinar HEAD, a citizen of the United States, residing at the city of New York, borough of Brookl Yn, county of Kings, and State of New Yor have invented certain new and useful Improvements in Phonograph-Reproducers; and I do hereby declare the following to be u full, clear, and exact description of the same.

My invention relates to improvements in plionoffrapli repi'oducers, wherein I seek to provi( c an ii'ii i'oved construction adapted for the repro( uction'of sounds which aie free from iarsh metallic tones and grating,r noises, the latter serious objections to Ordinar talking mac iines.

AAnot er part of the invention is the provision of a sound box, which is constructed.

and ai'ranfed for use in connection with a disk record ora cylindrical record, such end being. attained without change in the structure of the sound box and by simply changing the position thereof.

Another part of my invention is an imroved reproducer embracing n vibratoi'y isplirugni which is mounted in a novel man ner to secure an increased amp 'tude of "ibration, and

furthermore, to so construct the diaphragm' as to prevent it from splitting. and to :nuke it work steadily under the vibration given thereto.

"Ifhe invention resides. broadly, in a reproducer having a vibratory dia hran'm held or confined in or on u suitable odv, the edges being free or uncontined.- as distinguished from aia ordinary ne reducer wherein the edge portion of the ia liragm is fixed or secured rily to the y.

The invention farther consists of a phonograph reproducei' wherein I use a sound box chambered for the reception of a non-metllic diaphragm.

The invention further consists in the employment of a non-metallic diaphragm liaving a rim which imparts weight to the free edge of the diaphragm. said rim also serving in connection with a mica diaphragm as a means for preventing;r the layers from separating or splitting.

.The invention further consists of a phonogapli reproduccr comprisiiiga sound box ving a plurality of Styli anangcd and adapted for use on dierent classes of recerde of either cylindrim oi: diei: forni,

, hesitation o! Letten latent.

Application lle( Hay 1l, 1904. Serial lo. 20 8,M0.

ter sensitiveness and Patented Hal'. l8, 191.0

either stylus being brought into its working position by a simple ,change in the position ofthesoundbox. Reference is to be had to the accompaning draw' forming a part of this speci cation, in which like characters of reference are used to indicate coriesponding parts in the several figures.

Figure l is a side elevation, artly broken away, and showingr my reprodriicer adapted for usc in connection with a disk record.

Fig. E. is a cross section of thesonnd box `of Fig. i. Fig. 3 is a sectional elevation of the held centrally in the sound chamber ,5. According to one'enibodinient of the invention, the diaphragm 6 is made of mica. or other suitable material. Such a diaphragm. is equipped with a rmi 7 that imparts weight tothe free edge said riin being a apted to embrace the of the mica and prevent the layers from splittiii and separating under the .vibra- This rim may be of s liget metal2 criin folded around the edge of the diaphragm.

The sound box has inclined walls which .converge toward the center so as to conne nr hold the .diaphragm centrally, and u shown byy F i". 2, washers 8 are int between the diaphragm and the walls of the sound box, thus separating the diaggragm from direct contact with said sound a.. A

the washers and the diaphragm to assist in holding the latter firmly in place without 'With this stem is associated a stylus 10 which is outside of the sound box and projects in one direction from the saine. said stvlus extending lateralil or from one si of the sound box. This stylus is preferably of a non-metallic nature, sach as glass, and it is united directlyin a suitable way, as by of non-metallic material and mutmted'ory rtion of the diaphraemg- 8* tions w ich are giften" to tbe diaplira pato,

pin oi: stein i) passes through the sound box,

fastening: its edge or rim in the reproducen' lOl cementing, to the pin tl, thus associating said stylus 10 with the diaphragm for im mrting vibrations thereto. The sound box is tlurthcrmore provided with another stylus holder 11, which is shown as projecting from the edge of said box and in a ditl'ercnt direction from the stylus 1t). This holder 11 is adapted for the reception of u stylus 1Q. in the shape of a pin which is held or confined in said holder by any suitable means, such as the clamp 123 that is represented as a binding screw.

A hollow neck l-l projects beyond one edge of the sound box. as shown. This neck is attached to. or forms a part of the sound box. and it is in communication withsthe chamber i, thereof b an opening 15, the latter beine' provided m one or both walls 0f the sound box, as indicated by full and dotted lines. This neck co )crates with u suitable form of horn B, which may be united to the neck or the latter may he part of the horn.

The two styluses, 10, 1Q, enable the reproducer to be used in connection either with a disk rcord, as C in Fig. 1, or with a cylindrical record, as D in Fig. 3. By adjusting the sound box, A, in the vertical -losition shown in Figs. 1 and 2. the stylus 1Q is imposed on the disk record C to follow the undulations therein, and to he intluenced there by so as to transmit thevibrations to the diaphragm tt. thereby vibrating the latter in the chamber i. and )reducing sound' wares which ttow throu lt the neck 14 into and through thtl horn l. For usiu the reprodta-cr on the cylindrical record g. the sound box i.- turned to a horizontal position, as in Fig/3, thus bringing the glass stylus 1t) into po.-.ition to ride on the record, whereby the vibrations are communicated to the diaphragm for reproducing the sounds.

Another form of construction is shown b v Figs. 4 and 5, wherein an open sound box A.' is employed in connection with a centrally held non-tnetallic diaphragm 6*.: This rcproducer has a bod open on one side and formed with a chant ier 5*, the wall of which has a, bearing face 16 for the rece )tion of a washer S that separates the diaphragm front direct contact with the sound box.

'l`o make the diaphragm 'more sensitive I provide :t .spider 1i' having n )luralitypf arias that engage at a number o points with aid diaphragm.` said arms restingy on or. bcing attached to the diaphragm. Saul spider is shown as lying opposite to the open side it the sound hor. and it is attached centrally ;o the diaphragm hy a piu or stein 1S, tite latter lu'inu equipped with one stylus 1.0'. .Quid .-p'uter ha an arm 1t), the same bein v iron-tl tu a piu ift) ou a lng Q1 of the soun linx, and a ith-this arm is associated another The construction of Figs. 4 and 5 includes the saute elements as the device of Figs. .1. 2 and 3, the same being adapted for use in substantially tite same way.

As another construction of the reproduc 'ing' sound box adapted for centrally clampgather by the screws a. A stem or pin may or ma not be used to fasten the diaphragm secure y to the sound box and the washers, said diaphragm beimy thus lleld centrally in the' chamber of the liox and free to vibrate' throughout the major portion of its area.

Another form ofl construction is represented by Fig. 6, wherein an externally located spider xs combined with a closed sound boa and a diaphragm mounted in said box.

The diaphragm (5 is held centrally in the sound box A in either of the ways heretofore described, and in one side or sectiona of this sound box there are provided openingsI 22 which erxuit thel legs of the spider 17* to play free y in the box, said legs being attached to or associated with the diaphragm for the purpose of imparting vibrationsl thereto. fins spidercarrics a eylindqgrecord stylua 10", and to the spider is pivotcd an arm 10 that also has pivotal connection with the sound box, said arm being combined with a stylus 12 adapted to ride on a disk 'the employment of the s iider .tends to 'increase the sensitiveness of t te diaphragm,

and 'it makes )revision for the use of the sty-loses 10' and 19.", which are adapted for coperationwith the ditlerent kinda ot rec ords by merely shifting or changing the position of the sound box.'

The stylus adapted for co )eration with a curvilinear record, such ast te etylull of Figs. 2 and 3, the stylusrlo og Figa. 4 and 5 and the stylus 10 of FIF. 6, 1s com o rigid material, preferab y ofa non-metallic nature, such as glass. On the other hand, the

stylus which is adapted for coperation with a plane record. auch as the stylus 12 of Fi 1 and 2, 1'2 of Figs. 4 and 5, and the at y us shown in Fig. t3 as extending from the perimeter of thevsound box orbody portion, consists preferably of a liextble needle, as shown in the drawings.'

Although I have shown a reproducen' with a diaphragm held centrally 1n a sound box,

stylus 12 that is suitably fastened to the it is evident that. 'the dia hragm may be stylus holder 11.

fastened at its edges to sai box. Furtherrccord. ,t

iofr

sound-box, and-a diaphragm held or conand throughout the rea.

e. soun n" diaphragm held. centrally aguinst movement therein, and one or more portion, :i diario mgm coperutizig therewith,

more, e.' thin metal diophrcgm may be used in lieu o a mieu. diaphragm.

.Having thus fully described the invention, what I claiiii ais-new and desireto se cure by Letters Fntent in:l l. sound reproducer comprising. a sound-box, andI a 'die hragm held against movement at its mid e or central portion, the 'edge portion of. the diaphragm being.

2. A sound reproduce!" comprising o.

fined against movement at its middle or central portion only. 3. A phonograph reproducen', comprising a sound box, und ai mica diaphragm irionnted et its central portion therein, seid 'diziphragm being free 'to vibrate et its edne mejor portion' o its.

4. A. sound -reproducer having a die# phrugm held centrally from movement und provided with a rim ut its edge'portion.

5. A sound reproducer having e'.- dinpliragm held centrally against movement, and n rim embracing the edge porticn'o :seid diapliregi-"nf 6. A *phonograph ieprodncer, comprising a sound box and e diepliregm fastened et its center thereto, 'the' edge portion or' the A- nonograph reprodueer, coniprinin,l

interposed s :icing devices at the central part of the diaphragm.

8. A phonograph reproducer, com rising n sound box, a diaphragm uncontine et its' edge, and e. tranm-'eree pin erstem penning through the diaphragm.

9. A reproducer compi-innig a body ortion, a diaphragm eubetiintiell inem by said body nortion, and a 'plnru it' of reproducing.; etyliises cdperatmg wit seid di:-

pliragrn, one 'of :mid stylnees extending in one direction from the body ortion eo es t0 cooperate with spinne re-cor` ,und another or' sind stylueee egztenciing in e different direction from the body portion or the por; pme of enabling the zie-cond named stylus to cooperate with e. curvilinear record.

10. in a re irodiicer. n clininbered body und' a ilurnlity of reproducing devices o et'utively related to said diaphragm, seid reproducing devices extending in different directions from the body portion, whereby. in one position of tho body portion one of Suid reproducing devices is nda ted or cooperation with zi lane reco-rtl) and by n partiel rotation oi: the body portion the other of seid rerodiicing devices is brought Y into position for cooperation with n curvi-'l linear record.

11. In a reproducer, a chambered body portion, n diuphra m co ernting therewith, and u' ilurality o repro' ucing styluses 01g erativc said styluses being com: oeed of substantially unyieldiiio-roateria and' adopted for coperation wit e.v curvilinear record, the

other of Suid styliiees being e. substantially.

y related to Suid diaphragm, onooi:v

yielding. or liemble needle adapted for cooperation with a.A lane' record,4

12. Iii a .regir f uecr, u-chamhered body Egtiomn 'diaphragm separate from they rportion and attached thereto, sind e plurnlity of reproducing styluses coperatthe central port of the dianliragm,.and the Ether, projecting from en edge of the Botind ox. i

le. phonogrnph reproducen comprising e sound box, a dinphrafgf :and e. lurnlity of etyluses prog'ecting from the mi die and from the edf-e portions of said box; the sound box being chen cable tohorizontal or vertical positions en for service on a disk or cylinder record.

1 5. In n, reproducer, Yu sound box, adiaplirugmin Contact therewith, and u plurolity 'of reproducing stylus, one of said stylusee mechanically connected tothe perimeter of the sound box, and another of said etyluses being 4,positioned substantially at the centrel laterally thereof.

, 16. iphonogrepli reprodiicer, having' a.'

Portion ofy said :sound box,

arranged 'to bring one or the other of the stylnses into position sound bor., a diiiihraam held against move- 7 ment at its' midd e only, and o spidei-eiignging with said diaphragm.

17. A phonograph reproducer having e sound box, a diaphragm inclosed therein, e spider, V:ind a lurnlity of reproducing sityluses associated, with said s iider, the respective syluses bein'y adopte to cooperate with plone und corvi ineiir records. 1n testimony whereof l have h reuiito signed my neme in the presence of two suhscribing witnesses.

ROBERT HEAD Witnceeee:

dan. H. Gnirrin', Emvizr lli/annee.