US1289275A - Apparatus for molding. - Google Patents

Description

R. N. SARGENL APPARATUS ,CUR Momma. LPPUCWON m50 June l, w15,

f f (All, j d@ f R. N. SAHGENT.

APPARATUS FOH' MOLDING.

mLzcATloN FlLED iuNE I. 1913.

'Patented Dec. ISI, 1918.

narran erlirns rn'rnn'r onor-iron..

RALFH NBLSUII, SARGEN'I, OF ERTH AMBY, NEW JERSEY, ASSIGNO T0 THEROESS- LER. S: HASSLCHER CHEMICAL CO., .OF NEW YORK, N. Y., A CORP'ORATION 0F NEW YRK.

APPARATU FOR MQLDING.

Specification of Letters Iatent.

Patented Dec. 31, 1918.

Original application filed January 6, 1914. Serial No. 810,544. Divided and this application led J'une 1,

T0 all w71 om. 'it 'may concern.'

Be it known that I, RALPH NELSON SAR- oax'i', a citizen of the United States of America, residing at. Perth Amboy, county of Middlesex, and State of New Jersey, have inventedcertain newand useful Improvements in Apparatusl for Molding, of which the following is a, specification. l

My invention relates to apparatus for molding` and .has particular relation toan apparatus for molding or forming substances which are first caused to assume a liquid, semi-liquid or plastic condition, are @un or forced into the molds in such condi.- itiongare solidified during the course or opl eration and then discharged in solidiied,.

molded form. I have illustrated the invention in connection with the molding ot' chemical substances into .solid forni, the particular object illustrated being. themolding of such chemicals intoffcales or other shape of predetermined form, size and Weight# so that they may be handled A'Without'fbreaking as soon as they leave theinolding apparatus and may be readily utilized iii the arts, especially wherever either torni or weight is a t ported. Said table may be fixed in position desidei'atum. For example, if any given Weight of chemical is to be used ior' a par tiular reaction, a. certain number of cakes of the chemical, each cake having a weight. preferably bearing some multiple or unit relationship to the desired Weight,l may he counted out Without Weighing7 and so utilized. Such method will greatly lessen the time of, operation and hence ehea'pen the process, as the presentelaborate weighing step at the time of use would bedone away with.

In connection with the application of my' inventionto,chemical substances, the chemical must i'irst be fused or otherwise put into a liquid or sutliciently liquid condhionU then fed into the moldingapparatus, d solidilied at or before the timev of di e f distance of travel between the fee and the point of discharge being p:

erably s suliciently great to permit the eenling or' Serial No. 31,362?.

In the following I have described, in connection with the accompanying drawings, one form of apparatus in connection with which my invention may be practised.

In said drawings, Figure 1 is a top plan view of the ap aratus, parts being removed for clearness ol) illustration;

Fig. 2 is a side elevation of the same, parts also being removed in this view;

Fig. 3 is a rear end elevation, parts being removed; l

Fig. 4 is a front view; and

Fig. -5 is a rear View of one form section;

Fig. 6 is an edge view tions, face to face;

Fig. 7 is a top plan view of the, device of mold voi two mold sec- `shown in Figs. 4 and 5; and

Fig. 8 is a cross sectional View of a rality of mold sections similar to t ose shown in Figs. 4 and 5 butvshown adjacent each other so as to form a complete mold'.

Similar numerals of reference indicate In the drawings l indicates the frame or table on .which the other parts arev supor may .be provided with truck Wheels 2, 2, and a guide Wheel 3 for example, by means of Whichthe apparatus may be shifted from place to place as desired. Vertically arlsimilar parts throughout the several views.

ranged supports 4, 4, may be mounted 0n crossebars 5, 5, in turn carried by frame 1,'

thereof (Fig. I3), each of said guide barsbeing shown as provided with a bearing Way or track 7, on its inner edge.

8, 8 indicate horizontally arranged guide bars adjustably mounted on the other series of supports 4, 4, s0 as to have motion toward and away from said supports in a horizon` tal direction, each of said bars 8 being alined with the cmresponding fixed horizontal bar 6 and similarly provided with a bearing Way 13, 13, 13, 13 indicate vertically arranged.

rotatable shatts mounted in any veonvenlent manner (not, shown) at eat-h end of frame l, each shat't earrying a pair of sprocket Wheels 14. llt mounted on said shafts near the top and bottom thereof, eaeh pair of sprocket, wheels being! the same distanee from each otherand tromthe traine 1 and eaeh sety ot sprocket wheels being equidistant;

from the, corresponding set. Vat, the opposite' end ot the trarne. I

The. respective. pairs otsproeket, wheels at the opposite endsiot the frame are ronlneeted together hy a pair of eliains. each ehain eomprising a` pluralitwy of vertieally arranged mold sections 15` 15'. linked t0-k ;ether and arranged longitudinally parallel to eaeh other to rome, into rontaet, duringr l the rotation so as to form a eomplete mold.

as hereinafter' described.` As illustrated (Figs. L8) eaehA ot the mold sections cornprises a haelt yplate. ttt carrying two pairs ot' oppositelrY extending lugs 17. 18 and 19. 20 one set. at. eaeh end of thehaek plate. The front ot eaeh mold seetion is provided with lrecesses or eavities Q1. "21. each recess or eavity forming a. quarter of the eompleted molded t'orm. the reeesses heilig separated `trom eaeh other h v a continuous vertit'al rib lland h v `horizontalfrihs :22%. .22. the horizontal rihsl henney eut away at their outer ends. kasA at 24. to provide a hore i3 eonneeting the tompletedl mt ld forms vertirallyf `trom the sink hole '.tt' at the top to the lowermost mold form ot' the series. 'lhe sinh hole Qt', is formed hy means'I ot' reeesses or yravities '27. 'It'. at 'the tops ot' eaelr see-tion. eat'h reet-ss termine' a quarter ot the sink hole. The, tops ot' the mold sections may he. eut away as at. 2S

to torm a continuous trough 39 when the.

oppositely disposed set-tions are 'lnougrht intory position t'aee to fiiee. 'lhe adjat'ent mold seetions are linked ogether h v pins` or rods 3() passing throun'i lugs 17 and 2t) ot' one, seetion and lugs Ilt 'and 1.5i ot the adjaeent; section. pins 3() also earlving rollers l, t-ilrollers Eil resting on lugs 1i' and lrollers 32 resting on lugs l0-- 'lhe teeth of the sproeltet. wheels lt are ot'sueh dimen sionsl as to receive rodsBO, and thus hy the rotation ot the. driving sproeltet, wheels eause the endless ehain ot mold forms to he moved or pushed forward. The. parts are preterahly so arrangedthat, the. sprot-ket. wheels engage the rods 30' at a pointheneath lugs iti and above rollers 3&2 resting on in 2U.

The, ehain ot' molds in its rotation is partially carried or supported hy rollers Z in turn carried by trame. 1.

In the manner shown in the drawings it rtaplires t'onr mold seetions to make a romplete. form (Fig. 8).'tihe oppositely arranged pairs tit-sections on the respeetive chains registering with and tittingr elosely against, each other. The adjustahly mounted guide hars S. H. -are arranged so that their-trawl(- yways T. 't'. rontaet with rollers Sil. 2K2, on rods 230 thus servin; r to press the one ehain ot' mold seetions against the taees ot' the other l chain ot' mold sertions whieh are held in position by tixed `inde hars t3. t3. the traeltwavs 44T. T; of said fixed gnide hars eontarting with rollers 151. 3;. on rods fit) ot' its chain ot' mold sections. I'-t indicates a hopper or fnn'nelthrough which the substance to he molded may be discharged into trough if or into sink holes 26.

The sproeltet wheels ma v he driven by any suitable means, preterahl)v so as to provide for varia'hlespeeds. l have shown sneh a driving mechanism (Figs.` `143) hert-hv vthe. sprocket wheels at the right hand ot the drawings (Figs. l and-i are utilized as the drivingmeans. rl`he shafts lZ-. i3 ot said sprocketwheels are extended downward and provided with worm l(fear wheels 35( 35. in mesh with worm it' on shaft it?. Shaft 3T carries a bevel gear It at the end opposite worm Siti. said bevel 2ite-.tr Zio' heine' in mesh with bevel gear 39 ou trietion plate iti. Frietion plate t() is driven hy trietion wheel All. on shaft -tl alongr whit-h it is movahle so as to eause triet-imrpiate L0 to t 'avel at a. greater or less rate ot` speed as may he desirable. Shatt- -tzl mayY he driven hy any convenient means. `l' have shown" sueh a means in Fig. wherein 42% indieates an elet'- tiriefinotor havin a g';ear -t4 on vits armature in 'mesh with `ear if ear-ovini;` pinion ttt in mesh with gear lNon shaft l2.

` 'lhomolded material .drops into'a suitahle eonta'in'er (not showni at the forward (let'tl end of the. maehinoas the mold seetions open. the pointed endtt' at. the. hottom ot' 'troughlth detat'hin'g: the siniiheads hy eontart. therewith as the mold seetions open. the sink heads passing down trough fttl to a 'suitable reeeptaele (not. shown).

. `Asstated ahove, one of 'the objects of nir invention is tohrmp: into eertanrtorm suer ehetnleais as aresold -at the usual tempera- 'tm-e, hut melt, when heated to ahigher tem# peinture. rlhe ehemieals"which may rome ehemieal is heated in a suitable ressel, until the whole mass is melted and in proper llqntd state; The, eased sodnnn eynnid then poured into tunnel 2H and Vthe naehine lit) liti

nasceva set in motion at the desired speed, The fused material flows into trough 29 through sini: holes into the molds so as to .ill up the same,`enough surplus of the material remaining in the sink holes to completely fill the molds 'as tthe mass shrinks in cooling.v

The continuous motion of. the chains of mold sections between the respective guide bars and the pressure; exerted by the movable or spring adjustableguide bars against said chains, causes the molds to come togetherin proper registry and very closely and tightly against leachv other just before 'the funnel is reached and to continue in such condition for a' distance of travel sufficient to permit the molten material to solidify before the point of discharge or point of opening of the molds is reached. The apparatus is preferably of such length and the speed of travel is usually so adjusted that the fused chemical. will have time to cool off and solidify before the point of dis- A charge is reached but l may accelerate the cooling and solidifying' in any desirable manner consistent with the nature of the chemical vworked with. For example l may blow cold air over the accessible surfaces of the molds or, if the chemical is not hygroscopic or not too hygroscopic, I may sprinkle Water over the backs ofthe molds. Cooling; means all may of course be utilized to cool oii' the hot molds after giving up their contents, so that the molds will be of a sulliciently low temperature to solidify another charge of material which otherwise, owing to retained heat, might be prevented from radiatingr enough heat to assume the solid state before leaving?,` the molds.

In practical operation of the apparatus certaindmportant points have become evident in, order to insure successful use of the same and successful practice of the process. For example, .itis of importance that thel chains of mold sections be rather pushed than. pulled through. the apparatus, each section in turn being engaged and immediately roleascd'again by the driving means which in turn engages and releases the ad- Jaccnt section, the sections being thus lined up oner after the other, each section pushing against the one ahead of it. As the sections are oi preciso worlnnanship, cach section being as the mirror imago of its opposite section, and they lit tightly against each other face to farle as well as edge to edge in the respmctivc chains, a perfect and complete mold is formed so that the form cast will not be distorted.

Another important point relates to the forni the chemical. is intended to be brought into. lt is ay significant fact that, up to the present. ehen'iicals, such as those named above, have been manufactured only in tlio `form ol short sticks made manually in small tilting molds. ln research work on nanue factoring chemicals on a largel scale in or having special forms, l have observed that the form itself into which said chemicals must be brought is of considerable importance.'

For example, it might appear desirable to forni the Ychemicals intoaV prismatic body having six or eight sharp .corners7 formed by the intersection of three or more planes, the lines of intersection convening at a point common to any of said planes. By many experiments I have found that a prismatic body having asl many corners as stated above is not a suitable form for the purposes of my invention, but that a Sphere, ellipsoid, cylinder or a body formed by the intersection of the bounding lines of either of them with one of the others or a body formed by the intersection of the bounding lines of l either of said forms with prismatic bodies and variations obtained by the combinations of such intersecting lines will all give suitable forms. There are some forms with sharp corners which may be easily producedby the practice of .my method and use of my apparatus, such as those obtained by laying planes through the ends of the aires of a sphere, ellipsoid7 etc., but these are unsuitable for commercial purposes as far as chemicals areconcerned, although they may be Well suited for the manufacture of metallic bodies, for example.

The reason Why molds for forming prismatic bodies, especially those having unequal axes,l having six or eight sharp corners, are not suitable, is that, When opening,

a moldufor making such forms., in the actoi. discharging the molded body, scratches the product and breaks oif the corners so as to .maire the same unsuitable for the market.

'lhcre are moreover considerable advantages which make my apparatus, as Well as tho product formed, a great improvement over the present state of the art of finishing solid chemicals for the market. The present method involves too much manuallabor to permitcthe supplying of low priced chemi# vals in special'forms; by my invention however, lean supply chemicals 1nv any desired `form or weight in commercial quantities and at slight expense. The same remarks apply to those 'bodies of metal which lend themselves to treatment by my invention. The

made in the forni and proportion of parts and in the details of construction asherein shown and described` without departing from the spirit or sacrificing any ofthe advantages of the invention and I therefore reserve the right to make such-changes as lall within the scope of the appended claims. As'iiisl'aiices of ypossible changes I cite as examples the niaking of the apparatus as a whole either portable or fixed; the substituting' of molds of other `form `and type; the use of various means for actuating f the apparatus, and for varying the speedthcreof; substitutingother means for breaky ity of the adjoining element of either chain ing oi' the sink heads, etc.

This application is a division of my ap-` plication Serial No. 810,544, iled January Vhat I claini and desire to secure by Let? ters Patent is l y y 1. In a. molding machine an element havs ing,` pairs of horizontzilly arranged quarter mold cavities adapted to be alined in each of two movable, longitudinally parallel endless chains having the cavities of the inner elements register with each other, one

quarter of a inoldcavity forming with the horizontally adjacent cavity of the adjoiningelement of either chain one half of a mold, two of such correspondingly formed but opposite halves (af-.a mold forming a complete mold.

2. In a molding machine an elementhaving a plurality. of pairs of horizontally arranged quarter mold sections communicating with each other in vertical series adapted to be alined in each of two movahle,.longitudinally parallel endless chains having the cavities of the inner elements register vwith each other one quarter of a mold cavity forming with the horizontally adjacent cavone half of a inold', two of such correspondingly formed but opposite halves of a mold forming a complete mold having a single sink-hole at its top.

In ytestimony whereof I have signed this specification in the presence of two subscribing Witnesses. y'

RALPH NELsoN SARGENT.

' Witnesses:

OTro K. ZWINGENBEBGER,' ARTHUR L. GARDNER.

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