US894824A - Casting apparatus. - Google Patents

Description

o inge-nozzle adaptedto i @NEED STATES EATENT OEEIO.

SAMEE G. FRANKLIN, or NEW YORK, N. Y.,

LF TO HERBERT G. UNDERWOO s. BRIAN, OE MEMPHIS, TENNESSEE.

i MENTS, OF ONE-HA Ehrir To WILLIAM AssleNoR, BY DIRECT AND 4MEsNE ASSIGN- D; OF NEW YORK, N. Y., AND ONE- CASTING APPAnATUs.

No. 94,824. spemtion or Application filed March 28,

To all whom it may concern: Beit .known that I, SAMUEL G. FRANKLIN, a citizen of the limited States, residing in the borough of M nhattam` of the city of New/ 5 York, in the tateof New York,'yl tave in vented certaifn new and useful' Improve-,f ments-in Casting' Apparatus, of/fhich th following isfa specification, reference bei, g had to the accompanying drawing, part hereof. ,/U Various forms `of ap' aratus have beenl devised hitherto for the urpose of facilitating thev rapid castin of; metals underl pressure, such forms o apparatus being concerned mainly -with thelmeans for transferr ring the molten 'metal f om the melting pot or reservoir to the mol and for supporting and manipulating the old. The Oblect of .the presentinventionis to still further im rove such ap aratus and particularly wit Aa view 'to obtaining in creased speed and convenienceinfoper'ation, to the preservation as far as possi e of the metal which is introduced into the `mold at each operation from immediate contact with the atmospherieiair vand gases about the.' melti ypot or reservoir-and its furnace, to the filhn of the mold at each operation with met-al w 'chis 4drawn'from Aa level'b'elow'the I surface'of the metalin the melting pot o r 4reservoir so that it shall be free fromdross, r andto the ra` id operationsof .theentir'e apparams-particu arly the movement of the mold :f-Incordance with' the-invention "there is 3 6"`ldsposed within the melting pot vor reservoir,

. fin vv'rhit'lr'the level of the molten metal/).fis'

preferably 'maintained practically constant the addition ofjfresh metal from time to time, a pressure chamber which, havdelive'r molten metal 'tothe ingate ofthe mold and 'being itself 'sta'- tonary with respect to the reservoi r'is itself 'charged with molten metal drawnffrom a point'below the surface of the metal in the reservoir, and from which the charge of metal- -`lr`is then delivered'to thermold undersuita e fluid presurewhich is preferably `sup ied lwith-in the pressure chamber by th'e adinission of air under- 'ressure The char ing of the pressure cham er is effected by sii merg'- 'ing the nozzle in a portion of the contents of reservoir drawn therefrom at-fa point i the surfaee level. The moldffis sO spaDAi' -ar-rgnged' as to be moved up to- 'Letters rate-nt.

Patented Aug. 4, isos. mor. sgml Naseem.

the `nozzle and to make a tight 'joint tliorc-y 55 yith d ring vthe discharge of the metal/frime e pr ,ssn-re chamber into themold anfl thon /zo beyinoved away in; order that it may bjc f" pened and theiea'sting removed, while during t deretiring movementof the moldthc rechargili%of the pressure chamberfis electerh he inventiknl vill he more/fully described ,"the accompanyereinafter with reference to' jing drawin which, for the urpose of illustration any/'explianationof t' 1e naturejof/ the invention, shows, partly in elevatioii;` and partly/in longitudinal'section, en evfzorin of ap aratus which embodicsfthe invent-ion.

n the apparatus s'hownjfin the drayiing the melting potorlfreservoir a is shown as'fsultably supported," it being assumed that ,s'there is supplied a suitable souree'of heat, notfthown, to maintain the metalin the reservoir in a molten condition and at the desired t ture. Within the r s rvoir (1,; pre` .as to be fully submefiged therein, supplemental pot o pressur completelyyclosed ald nec'tion c toafsoury o yhas an air com resso'I al. suitableva ve may be admitted/f nder c r'oIvto'thepres- Y ,sure chamber` a; throng 'which alsqjtlie pressure in 'tlle'fbhamberf v.csjntbe relieved Awhendesiredfu/Ihe.elli/a1' 'en b is Ialsof'provided-With .a ozzl eferablyjextended from the lower,l '/hhambeil to' a. :point above vel 'f' ef ltenfmetal in the reservoir/gt O i 5b@ on/.fhahillvf Such f. reservoir sotthat the'i gateoffthe mold'may -90 make a tightv oirit t 'erefnith /lfhefniold f, which ma" .he .of 'a suitable construction, is suppo lf y "by a arrier' which conlprises in 'the construction-show, two parts an` g Whiclifnjlay be' connected, y'to form' ingle. .Q structure/Eby anygsjuitlble means, such, s" a f" link g Tliegme/mbisr y supports the/ih of .the niold andthe carrier :as awh mounted to moveto'ward and,fro. 1n=.t holz'- zle e, heingspportd, asshownLupo/n-'a suitableftrajokQ-'or'way'gf Therier'nberfg ofthe carrier is provider/lA with .a geant-and ranki-, -t'he gear meshing with a -ra'ekjkjon .the track T550 that' the `'carrier vcmi-,bewxnoved ',.readily'towardvifand from thgnozzle anl'held f tightly; aaist the nozzle the O themorh` For the4 echa `of this pressiire vis relieved.

v carrier is provided with a rol ber b there is formed in the wall ol`` the reservoir a and considerably below the .surface level of .the molten metal therein, a port. a" elnuuber, the reservoir being adapted to port is arranged a charger l'whichis adapted f In the position of the j charger l shown in the drawing the molten i V v tion ol' a reservoir l'or molten.- metal, a presthrough't'he port (1Q/but when the charger is raised, as hereinafter lescril. ed, t-he port f and outside ol such wall and leoveriug the to 'move vertically.

metal from the reservoir tilts the charge 1s covered by the lip l ol the rlnug'er, so that no more metal shall es 1a pe l'ro'm the reservoir,

and the eXtremit)r ol the nozzle c of the pressure char'nber b Ais subntergerl in the molten metal in the charger so that the pressure chamber l will be recharged from the ehm-ger through the nozzle c the valve (I being then turned so that the pressure in the chamber l) For convenience, the charger Z may be raised and lowered through the n'iovement 'of the mold from and toward thenozzle. For this purpose the member F ol' the mold adapted to cooperate withone end of a lever m t' e other end ol' whichsupports, through a link m, the charger l. As the mold carrier approaches the. rearward limit of. its novement the charger l is raised, through the de scribed connections, -for the pur 'ose of re charging the chamber b with mo ten metal,

and as themold carrier approachesy the nozzle the charger is lowered to 'permit it to. be ref filled with molten metal from the reservoir.

and alsov topermt the "-ing'ate of the mold to be brought'into close contact .with the eX-i tremity of the nozzle.

of the mold is in contact with' the extremity of the nozzle, it can be held in that position 1t. will be understood, also, that various' changes in details ol construction and -arrangement can be made, Vaccording to the conditions oi' use of the apparatus, and that the invention is not tobc restricted to the particular construction and arrangement shown.

I claim as my invention: .1. 1n a castingapparatus, the combination with a reservoir for molten metal, of' a .pressure .chamber provided with means for delivering molten metal to a mold, and a movable charger adapted in one position to receive molten metal fronr the reservoir and in another .position to vdeliver it to'the pres sure chamber. 2'. In a casting apparatus, the` Combination of a rcservolr for molten metal, a pres- `metal in the-reservoir.

.molten metal to the pressure chamber through lsaid nozzle.

"It will be understood thatvwhen the. ingate I liver molten' metal to the mold, and. a ,movable charger tdreceive molten metal lrom the' reservoir and deliver 1t to the pressure d. ln n casting apparatus, the combinasure lrlnuuber located within the reservoir nud having n nozzle above the surl'iue ol' the molten metal und. adapted to deliver molten metal to the mold7 and :t movable charger to receive. molten metal l`rom the reservoir :unl deliver it to thi` pressure elmmber, the reservoir being adapted to communicate with the` molten.

ehm-ger belou" the surlut-,e ol' the .4. ln a casting n-ppnrnlus, the combination oll n reservoir l'or molten metal lm ving in its u'nll'tl port below the `surl'nee ol' the molyten'metnl1 apressure chamberlocated uit-hin the reservoir und having n nozzle projecting outside ol' t he reservoir and above the su/rface ol the molten metal therein and adapted. to deliver molten metnl to themohhand a movable charger outside'ol' the 'reservoir and adapted' to Areceivemolten metal through the portf'in the wallthereoi'and to transfer the 5. In a casting apparatus, th tron wrtha 'vesselfto contant molten' .lli

' and a ressurechamber provided witha nozilyO 4 zle o a Ine-1d carrier movable.toviaid and- I ffr'om he. nozzle, a movable. charging device to receive molten metal l'roni'the vessel and mon means for actuating both the mold fearrterv and .the-.charglng device.

6. In a casting app'aratus,' the c i' nbi'n-a? its lower portion upward beyond the wall of the reservoir abovet-hc surface ol the Vmolten metal, said reservoir havinga port in its wallbelow the surtacc of the molten metal, and a x charger' arranged to'slidevertieall .against sind. wall of the reservoir and to be lled 'wlth -molten metal through the pertain' its lower position and to surround .the nozzle in its upper positron and charge the pressure chainber through said nozzle. v

7. In a casting apparatusI the combination of. arescrvoir for molten'metal, having a port 1n lts wall below the surface of the .mol-

tenm'etal, a pressure chamber having a noz'- zle above the-'surface ofthe molten meta-l outside ofthe reservoir, a charger'. arranged to move vertically against the wall of the reservoir and to communicate with said port 1in its lower position andto surround said noz;A

zle in its higher. position, a mold carrier arranged to nieve toward and fromthe noz'zle,'

. deliverit to .thepressi'rre chamber, and com-f A and siipporting the charger andacted upon by the carrier in its movements to raise and lower tlm charger.

.8. In, a casting apparatus, the combinar tion of afreaervoir for molten metal having a port in its wall below the surface of tile molten mataba pressure chamber having a nozzle above the surface of the. molten outside ofthe reservoir, a eharge.` to move vertically against @he wlll of the reservoir and to communicate with aid port in its lower pusit-ionndlto surround the nozzle in its higherv position,l a moldatriet arr ed to. move toward and from the nozzle;

an a lever to sup rt the char er at one en md having its ot r end acte upon b the carrier in its movements to raise and ower th'e charger.

This specification si this 12th day of March,

. I SAMUEL G. Signed in tlie presence of:

SAHUEL' A. Smrso, Crimine H. Dunn.

ed and witnessed D., 1907.

FRAKLIN.

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