US1187119A - Means for making and reproducing phonograph-records. - Google Patents

Description

C. FqWINCH. MEANS FOR MAKING AND REPRODUCLNG PHONOGRAPH RECORDS.

APPLICATION 111511 SEPT-26,1914.

1 ,187, 1 Patented June 13, 1916.

1 IH I a ar/es 31W ARUBA/E113 To all whom it may concern I NITED {STATES PATENT our CHARLES WINC H, NEW YORK, Ni Y.

MEANS FOR artino AND nnrnoiincmo rnonoenar r-nncoara Be it known that 1, CHARL S F.- WINCH, a citizen of the United States,'and a resident of New York,*inthe county of New York and State of NewYorkfhaveinvented certain new and useful Improvements in Means for Makin and'Reproducing Phonograph Records, o which the followlng iis'a specifi cation-j,

My, (invention relates to apparatu's forl use in connection-with" sound recordingjand. re

producing machines andhas to do more par- I ticul'arly with a means? for taking up and transmittin theisoundsto orf-fronrthe sty lus or needle w, ich engages-the record J a principal ob'ect-of he mventi'onqis' a; produce a greaterfamplitudeof movement; of the. stylus in response to'the-vibrations'set.

up by the speaker or singer than is possible by previous constructions and,- at the same: time to secure an; action of, said stylus that shall follow positively and faithfully the-vibrations produced b'y-the speaker or singer whose-volce is tobe'recorded.

.A record produced by apparatusfmade in accordance with my invention -may be used to. reproduce thesounds recorded ;not. only I with great volume .but alsow'lth'pgreatf fidelity in respect to the finer vibrations rep.-' resenting quality in the recorded ,sound'.

Owing .tothe positive action and great-Q. amplitude of'movement ofthe' stylus the;

sound may be" faithfully recorded on la su fact orfin a line of less extent than is rd narily required sinceithe fiher vibrations'willk be distinctly produced onthe record and the recording surface may be run at less speed than is ordinarily re aired in orderto obtain;- a record from ;Whl0

said finer vibrations mag be distinctly reproduced.

her" advantages will also result the use of myinvention and will be QbVlQlIlSi to those skilled in the art.

E lsentially my inventpn consists of liquid holding receptacle having ',a diaf'. v phragm closing one wall or side thereof and of larger-area than the stfyluscarryin' diaphra m/andhavin also a liquid out et by whic ;the body. 0 liquid with which the a diaphragm is in contact may be placed n communication with. the dlaphragmcarry-' ing the recording stylus or need-lgr.

he preferred form of carrying out my invention is shown in the accompanying draw ings wherein a horn like the ordinary sound gathering horn of a phonograph recorder or sp cifi at bfIiettersPaieilt Patented June ii.3,1916;. I Application filed September 26,1914; Serial Nh. 863,616.

reproducer is shown constructed as a liquid tank with a sound receiving or producing diaphragm located in or near the mouth of =the' same, suitable means being also pro;

yide'di for permitting the filling of the tank I 'with'a' vliquid. This particular form of my invention may be conveniently described as g honograph tank horn;

The drawing' shows tl ls form of my in vention in vertical central section.

, '1 isthe-body of the horn and Q is the dia-, 'phragm whlch' is set in the/body of the horn to befre'corded or to produce waves when looting the sounds and causing them to impinge upon the face of the diaphragm 2. Sa1d .;d 1a 'hr'agmf is set into the horn in a' water-tig' t manner and said diaphragm is at such position in the horn or of such ex- 1' tent as to beof greater area than the stylus carrying diaphragmof the particular recorder with which it is to be used i The "horn terminates in anoutlet pipe 4' with which may be employed'suitable means for coupling the hornto the reoorderor reproducer proper and in a liguid-tightmanher. This outlet 4 may be exihle for-com Venience of. attachment. If the recorder or reproducer proper benot 'so'constructedas] to be liquid-tight suitable gaskets or. washers may be used at the edge of thestylus carry ing diaphragm, but as this isa-mechanicaI detail as to which I make no claim of invention, the same need not'be describedwith greater particularity.

' To fill the horn with liquidwhen. it has been placed in position in connec'tionwith the recorder orreproduc'er, a suitable funnel i 5 maybe employed therewith, said funnel ,being provided preferably witha stopper that may be inserted into full contact with the" body of liquid when the tank is filled, 7

so that there maybe no opportunity for movement of the liquid excepting through theoutlet i. 'f-

a The apparatus 1S used in the same Way as the ordinary air horn by directing the sounds to be recorded into. the apparatus, but in my invention the sounds impinge upon the diaphragm 2 and upon well-known hydrostatic principles the vibrations or.

movements of the diaphragm, which is of comparatively large area as compared with the outlet 4, are transmuted owing to the incompressible nature of the liquid into movements of the body or column of liquid in the outlet 4. which are of much larger extent than those of the diaphragm itself, and these movements being transmitted through the body of liquid to the diaphragm carrying the stylus produce an action thereof which is a positive action and faithfully reproduces the movements of the diaphragm 2; but owing to the relative size of the diaphragms the stylus carrying diaphragm moves with larger excursions than the diaphragm 2. Hence, a record will be produced in which each individual depression or excursion will be magnified, and so that sounds reproduced therefrom 'will be of greater volume besides being faithful reproductions of the original sound impinging upon the diaphragm 2.

As an appliance for use in recording soundsmy invention is especially useful but for reproducing sounds my improved tank horn also possesses great advantages since, as will be obvious, the connection 4 may be of any desired length and may therefore be extended from the reproducer itself to any desired point in an auditorium devoted to the reproduction of plays by moving pictures accompanied by the voice of the actor; When so used the voice of the speaker may be re produced without diminution of volume at great distances, owing to the fact that the i sound is conveyed through a liquid which, as is well-known, is a better transmitter of sound than air. I urthermore, owing to the fact that the liquid such as water will convey the sound at a much greater speed than air there results a more perfect synchronism 40 of the sounds with the motions of the picture at all portions of the auditorium in which the tank horns may be located.

\Vhat I claim as my invention is The phonograph tank horn herein d6- scribed, closed at its larger end by :1 dia- )hra 'm for receivin or re )roducin sound wave/sand containing a liquid in direct contact with said diaphragm and connected at its smaller end by a liqi1id-tigl1t passage with the receiving or reproducing instrument, as and for the purpose-set forth.

Signed at New York,- in the county of New York and State of New York, this 25th day of September, A. I). 191-}.

CHARLES F. \VINCH.

\Vitnesses: p i

F. B. Towrzsnnn, I'IENRI A, GENS.

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