US785317A - Sound-record. - Google Patents

Description

110.785.317. PATENTED MAR.21 .1905. G. A. MANWARING, v. H; EMERSON, F. L. GAPPSV & B. 3., NORTON.

SOUND RECORD.

APPLICATION. FILED b014, 1904.

' llllllillll W lill I I. l myh M/ WEEK/2 No. 785,317. Patented March 21, 1905.

GEORGE ABBOTT IWANWABINGQ or BAYONNE. AND; VICTOR I EMERSON, OF NEWARK, NEW JERSEY, ,FR'ANK L. oiirrs, OF LONDON, ENGLAND, AND EUGENE E; NORTON, o NIoHoLs, CONNECTICUT, ASSIGNQRS'TO AMEEIoANeEAPHoPHoNE COMPANY, OF BRIDGEPORT, CONNECTICUT,

A CORPORATION Orv-WEST VIRGINIA. v I

.souND-R'EcoRo;

SPECIFICATION forming part of Letters Patent No. 7 5,317, dated March 21, 1.905. f 7, Original application filed April 14, 190 ,Se1ia1 No. 203,233. Divided and this application filed etcber.,1904. Serial No. 227,170;

T9 71171707771 it m y l'tcerrtk j I siredythe bore of cylinder'A may be slightly Be it known that we, GEOEGEABEOTT MAN- tapered to facilitate subsequent removal of WARING, of Bayonne, Hudson countyQand V1othe electroplate'. The cylinder is caused to re- TOR H. EMERSON, of Newark, Essex county, volve, and the recording device is caused to New Jersey,FRANKL. (JAP1 s,refsidingin Lonprogress longitudinally Within the {cylinder don, England, and EUGEN 'EJNOR'TO of by any suitable mechanism; The mere-pro- 2* Nichols, Fairfield county; Connecticut, all citiduction of an original sound-recordupon-"the Zens of the UnitedStatesg h'ave invented a new internal surface of a hollow cylinder isn'ot'in and useful Improvement i-nso'und-Records, itself-Knew and :may be accomplished by any IO which is fully set forth in the following speci, desirable means. This original sound-record 5 5 fieation. is electroplated (as in a bath 0 in the usual ()ur invention relates to the production of mannerlto secure the electroplate D, depositmetallic cylindrical sound-records which are ed upon the record-surface withinthe bore of primarily intended for use in nurling comthe cylinder A. This electroplateD will pref- I 5 mercial sound-records, but which may be used erably be backed up by a strengthening-core for other purposes. D, which may be of any desirable material The present application is a division of our and may be secured to the cylinder D in any pending application, Serial N 0. 203,233, filed convenient manner. The electroplate,with its April 14:, 1904. In that application we debacking, is then removed from the cylinderA 2 scribed and claimed the method of producing and is ready for use. This electroplated cyl- 5 commercial sound-recordsinquantities, which, inder D is an integral and continuous (seam- -in brief, consists in first making an original less) unitary article, having the sound-record sound-record upon the inner wall or bore of a proper formed in reverse upon its external hollow cylinder, next depositing an electrosurface and having no longitudinal ridge or 5 plate upon this interior surface, and finally fin to mar its record-surface. removing this electroplated cylinder from the We are aware that metallic record-cylinders original record, after which this metal record have been proposed heretofore; but our meis ready for nurling or other use. tallic record differs from them, as will now In the accompanying drawings, Figure l is be pointed out. Such records have some- 3 a longitudinal sectional View representing the times been made by direct mechanical action, formation of the original record upon the inthe recording-stylus operating (in more or terior of a cylinder. Fig. 2 is a similar repless ineffective fashion) to cut or gouge out resentation of the cylinder while in a platingthe material upon the external surface of the bath, and Fig. 3 is a perspective of a metallic metallic cylinder. Owing to the comparative 3 5 sound-record forming the subject-matter of feebleness of the sound-waves and the comthe present application. parative hardness of metal the record proper.

A represents a hollow cylinder composed of 2'. 6., the actual cuts or gouges is shallow suitable material, which for convenience may (where made) and is an inaccurate represenbe designated wax or wax-like, being of tation of the path of the recording-stylus. 4 any substance, suitable for making original In short, such records are impracticable and 5 sound-records. worthless. Our new metallic record differs B represents a recording device which confrom these in that, first, it is of electrodetains a diaphragm and a recording stylus posited metal; second, having the record in acted upon by sound-waves through a tube 6 reverse, and, third, in that it corresponds truly 45 according to well-known principles. If deand accurately with the original sound waves. 9

Metallic record-cylinders have also been formed by electroplating upon the exterior of an original record-cylinder; butin this case the record proper is found upon the interior of the metal cylinder-that is, Within its b0reand sometimes such tubular metal records have been cut through longitudinally and flattened out or even rolled up in such manner as to present the record upon the exterior of the cylinder thus formed; but in the latter case the cylinder will present a seam Where the two edges have been joined. Our new metallic record differs from these articles in presenting the record upon its exterior and in being seamless. The presence of theseam, it is needless to say, renders the record absolutely worthless either for direct audible regroduction or for nurling commercial recor s.

Metallic record-cylinders have also been formed by electroplating with a diflFerent metal .upon the inner surface of the metallic cylinders referred to in the preceding paragraph and then removing the latter by the action of acid. The records thus formed are not in reverse and are therefore 'unfitted for nurling, since the knurled records would have ridges instead of grooves and could not be employed In testimony whereof we have signed this 4 specification in the presence of the subscribing Witnesses.

V GEORGE ABBOTT MANWARING.

VICTOR H. EMERSON. FRANK L. CAPPS.

EUGENE E. NORTON.

Witnesses for Manwaring and Emerson:

DANIEL SULLIVAN, WM. HACKLAND.

Witnesses for Capps:

R. WESTACOTT, A. NUTTING.

Witnesses for Norton:

Jim. R. PETRIE, J. B. BOLLING.

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