US932237A - Sound-record mold. - Google Patents

Description

J. W. AYLSWOBTH. scum) RECORD MOLD.

APPLIUATIOR TILED JAN. 29, 1908. 932,237.

-' g i ii V1 ll Patented Aug". 24, 1909.

i icnown that. l, JONAS W. Arnswoir I of the United States, residing r:

223 Mn end evenne, East Orange, eennty of Essex, {l State cf New; Jersey, here invented "-"im new and nseinl' improvements cord iriolols, of which the foloescription. My invention relates to various new 2121s.). useful improvements in sound record niolris, adapted for nee in the melding of (.lnp nit records by :i spinning process in Wi mold is rotated at a high speed and centei charge of melten materiel which is r? tribntecl ever the record surface by cent ugal force. in actual practice, rliilienity been eneonnterecl in constructing the en for the inohls in such a. Way that-they. be perfectly tight to prevent the molten warlike-material, Well as r prevent the entrance Water, Whi (linarily sprayed ever the inolils to records after the '*.vz1.x-lil e materi l. distributed over the record. surface.- the caps is readily removable so tl the receril is formed. it may be taken to permit the record to be removed ironi inol ti afterhas contraci'e clieinetricell The cther'cap iorins prnetieall perms fixture and considerable i h perieneecl in eennection "therewith, for reasen that when the reaming tool is intro- (iucecl to finish the interior of the record, i liable to injure the em) 03/ the between the cap anti the mold. To everccine these Cliilieulties, 1 make use of the Q01 siruction hereinafter described and eleisn in which a hardened steel esp used, in addition to forming a tight join 1U enC. of the meld, will also as for the reaming tool, lini t-ien not only longit-inlinal y r the record, but also limiting th 1' which the reaming teal shell nri'lre the thickness of the reeerrl enci its it diameter.

In order that the invention may better understood, attention is directed t the a.ccompanying drewin thinning specification, and in Whieh Figure l, i:l01'} i'.l(llii1l 0 the complete mole; and l i spending View of the same witl removed-and showing a recm't. i meld and the 1 amin toel "r.

"'EY, AStSIiENQIS. NEW JERSEY PATENT Aug". 241

0 views, Corresponding parts e t are represented erenee.

The meld l, is of any usual construction, formed on its interior with a negative tetien the desired master. At ene .1111, the meld is girovidexl with e removable p secured in plRCQ by .1. spring ring 3, engagii e shell or recess the mold, whereby the cap .2 {I he remo ed by pulling the same set ('ilCnj by means 03? e suitable tool. cle claim ,he censtruction of this cap 1e present application, and it will be nncleistoecl that any onier suitable arrangeineni; may adopt-ed for the purpose. Freffl erehly, removable cap is provided with annular on its inner face so as elefine the eerrespondingend of the mold.-

recerrl shewn in Fig. 2. Ordinarily the meld l is marl with n. liming of 'cepper with en outer shell 0f brass. It.- is 1 m 7 N ieirnee. Wnn e shoulder 5, 111 which may be en-reved in negative, the name efthe selectiento he pliceteii, and engaging with tl should is a cap 6 held. in position in a; suitable way, as for example, by a ring 7, screwed into the entl of the mold. It will he ebservecl that theshenlder 8 of the cap 6, i

s leeetel slightly Within the plane of the inner ed/ e of the shoulder 5. When the rezmn we 9 .15 therefore introduced Within to thereby limit sneu movement and define the tl ekness of the record, as Well its in-' i'erier diameter. By making e cap of hardened steel, as expl'zned, it cannotbe injured by, the reaming tool, While at the same Y me, it performs the additional function of ecting es :1 te tee reaming tool, both longitudinally and diametrically.

Having now described. my invention, What.

iin new a 1d clesire to secure by Let- Pnteot is :lolloWs:-- i inriricnl sound record IllOlCl proi i r "led wish :1 cap of herd metal :t'ermecl with i shenlrler 0n the inner side therehevine' e c lindrnael bore of a less radius n the inel ne thickness of ihe record JEUTZfi adapted in serve as a gage to 1101 dimensions of the rcord. in n latter, substantially as set forth. i .rica'i sound record mold fgrmed airinr with a tapered shouldr and witiz. cap of hardgmetal formed shoulder which engages the Quid-sir and having a cylindrical or dimensions of the record lie latmr, substantially as set o'r lder h'aving a surthereef adapted to med tightly in engagezne mnnr rule 01 said shoulder, securely but rcmovnbly so 5 substantially set forth.

M less diameter than the ta-J 6w, adapted to serve as a gauge to uni record mold formed the record; and a cap face on ihe inner side thereof adapted to v fern: 0m) end of the'record, and a capof hard metal having an annular shoulder maintained @ightly in engagement. with the outer side of said mold. shoulder, and means for securely but reinovz bly s0 ma'ntaining it, sub'stzintiiilly set forth,

5. A cylindrical sound racc-rd mold formed on its interior with a tapered shoulder, a hardened. steel cap nmintaincd tightly in engagement With said shoulder and 21V Lhreaded ring engaging the cap, substantially asnnd for the purpo'sesset. fOllll.

This specification signed and wiincsse l. this 21 day of Jan. 1908 JONAS 'W. JET. 3W )R'Iil.

wiiiness w v Finn a LEWIS, Grimm :KLEHM.

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