US1585845A - Multiple mold - Google Patents

Description

May 25 1926. 1,585,845

s. FLAM MULTIPLE MOLD Filed April 7, 1924 2 Sheets-Sheet 1 24 umm /f uw@ 'A y May 25 1926. 1,585,845 s. FLAM l MULTIPLE MOLD Filed April 7, 1924 2 Sheets-Sheet 2 I n Ilim! l ingu' plurality of mol Patented May 25, 192,6'.

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nal and weight whileyetg maintaining the block of 'Y tile suicisntly resistent to all stressesjimposed thereon. Insuch 'molds it has beencustomary to provide cores for each V of the mold compartments', which4 remain associated vwith the'iiiold 4until the rodfigt 4u' r 'is treatment is especially necessary where free flowing material such as' wet concrete is used forcastin tlieblock, This type of construction there ore requires is entirelremoved from, the `mol as many cores as arev necessary to Vsu'ppl laborious task to assemble all of all the molds in use. Since the core itsef is usually one of the most expensive arts of the mold, itis evident that the tota of 4the molding equipment is greatly inL creased by the provision of these numerous cores. It is one of the objectsof my invention to obviate the necessity of using more than a relatively few cores. This accom lishby using 'a mixture for molding that is suiciently self-supporting to permit removal of the-cores soon 'after before the vblocks 'are 'cured in otherwise. VI n this manner, the same Acores can be used repeatedly even while the blocks are setting.

In the 'rior referred toV it is a e-'cores in a multiple mol since each of them must be handl Vindivi ually. It is another ob- 'ject of my invention to save a large portion of the time formerlyrequired to acco lish this result. I obtain this e'ectby providing for a 'simultaneous insertion and with# drawal ofl all the cores used in one `complete ncSt of molds.

It is another object of my invention to improve in general the construction of multi e molds. 4

t is still another object of my invention to maire it possible to expose a very large eur- Vface oflthe block duringthe process of setting, "to the action of the curing medium, such as steun, whereby a quicker velet ma -be obtained. This increased area 4ie secured 1'by the aid of core holes,- so 4as to save ,mateL tiring d P0 l. hinutxir preceding views.

rthey extend beyond the edY the pulling of the core before cur-ingewhich,

pulling exposes the sides of the cored holes to the curi-.ug medium. v

vantagesx, which will become apparent ,as the description proceeds, The novel features of construction and operation gupon which the ad appended claims.

may be best understood tems-detailed devantages restare eet forth in' they e invention,1however,`

scription of one embodiment of my -invenings. Although. but one `embodim'entis specifically described, it is evident that man other forms .ofiiiy invention may be devise since the sco of the invention as define in the claims is suficient to cover-many other fom v l Referring to the drawings: Figure l is an end elevation of a mold embodying my invention, shown with the cores in roper` position for pouring, and a ltion, illustrated in the accompanying drawfew of t e partsin section,"so as to expose the construction of the arts I, Fig. 2 is a side elevat on of the moldof Fig. Y1, with some of the parts broken away,4

so as tol permit -the use of a large scale;

Fig'. 3 is a top plan view of the apparatus, but with the cores and their supports omitted 4 is a detail sectional view, illustratin 4e arly the construction of the cores;

Fig. 5 isn representation of a bloei: that is produced bythe apparatus shown in the The molding apparatus table 11, shown most clearly in Fig. 2. table forms. the bottom of a (plurality. of mold spaces 12, and is supporte in 'any Aa propriete fashion at a convenient heig t to permit ready handling. Since the blocks supported on element 11 must be cured, the arran ment is such that a hydraulic truck may E usedto lift the entire mold audits `contents and to transport them to a suitable s t or kiln. To effect this result, a plurality olioupright supports or legs 13 are mechanically connected to the plate 11, as by the aid of the channels 14, extendi across and fastened to the ends of the p ate 11. The supports 13 in the form of angleV irons, are fastened to the rear ofthese channels, where of plate 11. This is shown most clearly in Figs. 1 and 8.

includes" a dat lot as struts 1B the end channelsl In order to reinforce theplate 11, one or morel stiifening channels may be rovded, Three are showninthe present 'ee, exlongi dinally of the plate 11, and the Y oneebeingalsoconnectedtothelegs 18. Furthermore, additional'brwing such 2)l between legsl and may be provided.

The foregoingd one the supportingmeans for thev te' llisofcourse merely illustrative o a' form that the support may take.V The 4important feature 1s that a considerable Yis provided m mediately underneath the plate 11, for aceommodatng a plural Acore structure, as

well as the truck that is used for transfer.

the mold 'from place to place. l'u'lpon the plate 11 there rest-.a number o aral'ng plates 17, which. assist in fo the mold 4 12. In Fig. :3 the plurality of spaces isshownjasa in a double column, each extending longitudinally of plate 11, but; of course other arrangements may also be used.- V'iosup port these plates 17 in proer position, a central partition 18 is provi a pair o longitudinal spaced plates 19, and fastened to the plate 11. These plates'have slots 20 which'accommodate rejections or tabs 21 formed at the sides of e separa plates 17. In order to retain 'the tabs in place and prevent removal of the plates, rods or wires 22 are provided, extending through the series of ta s 21 and withinthe partition 18. The lseparating plates 17, being once assembled with respect to partition 18, need not be at any time dismantled or withdrawn from position; this is due to the fact that onl two columns of molds are rovided, an therefore it is entirely feasible to slide the roducto' atthe lo 'tudinal edges of wh: e lates 17 are in place. The remain-A ing si es of the mold spaces12 are formed by the aid of the longitudinal plates 23 one on each side of the bottom plate 11. l ese plates also have slots into whichitabs or projections 24 extend, formed on the separating plates 17. Theselongitudinal plates 23 are purposely made long enou h to provide space for some formV of tig tenersto keep t ese plates in position. In the present instance I show hooks 25 forl accomplishing this result, which hooks extend tween the partition plates 194 and the lon 'tudinal plates 23. This manner of hol ing the plates 17 is not only simple, but also conveniently and quickly detachable. For permitting cores of appropriate form to enter the mold spaces 12 from below, one or more apertures 26 are provided for each space, in the plate 11. In the present instance two apertures and therefore two cores for each moldspace, are shown.

As many of the tab e structures justde` vyvith d In ','iginoids of operating In therefor are most 'clearly shown in Figs. 1 and.2; and in Fi vare in pro ed, .formed of Vnear the bottom, as shown at 31.

e plate 11 even' scribed are used as desired,the number be-v lng dependent u n the ea of the plant. On the ot er hand, only atf'ew nests of coresneed ber provided. foi-the entire plant since the cores arel Y to bc drawn from the molds soon after pourused again for a succeeding series rBhe nest of cores and one form 4v the construction-of one of the cores 1s clearly indicated. 'Ihe individual cores 27 r place for mol l'in Fig. 1, while in Aig. 2 the are with awn Vfrom the mold spaces. T e cores 27 are preferabl madehollow, either cast ir-stamped, an have'a configuration that corresponds )vith thesha e of the a rtules 26.; in this instance, a rustrum o va square pyramid with rounded edges.

In order to sup rt these cores 27 in' proper spaced relatlon so that .all of them can be moved simultaneously into and out of the mold spaces 12, I provide a vertically'mova'ble structure, includi a series of horizontally7 extending channe irons 28. VFour of these irons are shown inthe pres ent instance, corresponding to the four longitudinal rows of apertures 26 in plate 11,

ting and each supporting a row of cores 27. To

facilitate the manipulation of the fastening bolts or rivets 29 fSFig. 4) which pass through the internal anges 30 of the cores, I leave a portion of each core wall open Furthermore, the taper-of the cores is made gradual, s0 that a suiiciently tight iit can easily be secured between these cores' and the apen tures 26.

The channels 28 are rigidly fastened at their ends tothe horizontal legs of an le irons 32. The vertical legs extend Aupvvar y and cover thet ends of the channels. These irons and the channels 28 form a gridiron likestructure. This structure is made vertically movable in any appropriate fashion, so as to project the cores 27 at will into the s ces 12, or to withdraw them as r uired.

function may be accomplished, or example, by fastening other angles 33 tothe horizontal leg of angle 32, and sup citing the vertically apertured uides 34 tiereon. These guides may be in s idin engagement with the stationary vertical ro 35. Grease cups 36 may if desired be provided for reducing the friction between rods and guides 34. In the present instance I show our rods 35-one near each corner of the gridiron-like structure.

ion

1,665,848 Q shapes are narrow `enough to permit them vertict'llly4 on guide rods 35.l lorder to to pass between the upright egs 13, as keep thecores 27in the u per position of clearly shown in Fi 1; and the horizontal Fig, 1 a pawlv 52 is "rovide whiche a portions 38 are hig enou'gh to permit the oneof the pinions 4 referably'tha-t which entry underneath it of a wheeled truck isadjacent.: 4theghandie end o f' shaft 48. 1D body, the sides of which are diagrammnt'- This ggwlis showin` as pivoted on the angle ioaly indicated at 39. After the molds ironY and; weighted so asto `urgejthe and cores are. all assembled and the molds paw] into e agement'with the teeth of the filled, this truck is used to lift the entire pinion 47. i

mold oi the ground 40h e the Thelstructural vfeatures of my invention 75 lower surface of the horizontal rtion 38, havejnow been described. Its mod eof and urging these portions u war l Then operation', although elucidated in connecby permitting the truck bo 'y to rop, and tion with the description of structure, may

-in addition lowering the cores, as described appropriately be summarized Vat, this point.

hereinafter, the nest of cores ma be vvitl1-V First', of all, the separating plates 17 are 8 drawn by the truck from beneat late 11 properly assembled with, respect to the 811.11 reinserted under an unfill mold partition 18; then the longitudinal plates 23 s structure; the operation of filling and regre put in position and held by the aid 'of horntontal portions 38 o supports 37 are position of Fi 1, the 'guide 3 4rs1i'dingover the vertical (ortions of supports 37 .are new be positioned for filling. After this .held rigidly in proper spaced relation by ground, since up to t mein4 for raising and lowering t e cores, cores27 may moval of theco'res may thus be repeated ooks25y hen" a-trnck carrying a nest of again and again, using the same nestof cores 27-in loweredfposition, lis passed under 85' cores. the' table 11, and positioned so as tolaline Continuing with the description ofthe the' coresf 27 with the apeitures 26.4 The supports for the vertical ide rods 35, the 'shaft 4B is rotated to raise the cores to the joined by a rectangular frame 41, formed the rods 35. en vthe cores arein raised of channel sections and provided if necesposition, Athe pawl 52 holds the channel sa with horizontal stays 42. Also stay gridiron frame in its upper position. The nog 43 running crosswise and connecting truck, with its loadof mold and cores may preferably a ed, to lend rigidit to the is accomplished the truck is Wheeled to a n structure. Near the corners of rame 41, drying kiln or other \loc`a`lity, the cores the rods 35 are securely anchored therein. lowered to the position f Fig. 2; this move- The tops of the rods 35 are furthermore ment also permits thel gs 13'to rest on the is point these legs theuse cfa fiat late 44 that is fastened aswere'lifted by the movement of cores 27 b bolts 45 to t e rods 35. These plates into the apertures'26. `YVhen thesel 1'3 serve to protect the operat' mechaagainv rest onthe floor, the truck'wit the lbe taken out froln'undeiV the fromvthe drip from the molds or the mixer. plate 11, and reinserted under an empty For this pur se the plates 44 have `fornest-of molds The mixture for molding ivardlyjcurve portions that serve readily is= of course such that the blocks are to" ed` the liquid or `semiliquid matter suiciently self-supportin to permit the falling fhereoncore removal. The pr uct is shown in mechanism for raisin'g and lowe Fi 5. ,m the cores 27 may take any of sevle lie to the fact that the cores are withmechanical devices. 1j`or illustration, I drawn right after casting, the curing is have chosen one that is simple and inexhastened, there being a large ex area pensive to manufacture. It comprises a for thecuring mdium @Act 011- he blk pair of stationary racks 46, one su ported Only two or nestsf 00res'27 need be l" at each end of the frame 41, and se held provided, for they can beiised over and over rigid n place by the aid ofthe top plate again with 4ln Vnum'ber 'ci multiple molds.'

44. ngag'ingl with each of the racks 46 After the b loc are suic'iently cured, it is there is a pinion f4?, fastened to a shaft; 48 a very-'simple matter to remove them. For supported rotatably from the core struc` this puposeonly the plates 23 need be ,20 ture; fonthis purpose the straps 49, fasttaken `o the vh lc'icls can then be slid ofiened'npprogriately to the central channels sidewse from theV molds. The reassembly of 28 ca e bearing blocks, 50 in which the molds is therefore ve uickly accom, `th 48 is jou Allyn e rnaled. This shaft is of plished especially since the cores are course lon cnou h to extend entirely from inserted simultaneously and as quickly with- |25 eng to en oi ed core frame, and at one drawn All of these eatlurea feist very en ,itis rovi e with a uared rtion materiali inspeed' upt emo in proc- 51 rmccoriimodate a wrench(I or craipih; It ess, as well as redliigcing the cost o mold is eTit that by rotating the shaft 48 in construction. Furthermore, since the cores the proper direction, the channel fra e are ulled out of the cast blocks downward |30 carrying the cores 27 may be made to mora? ly, ere is no tendency when pulling these cores to distort the block in any way. This feature rendersA it practicable to remove the cores very shortly after the blocks are cast.

I claim:

1. In a mold for' casting material, means forming a plurality of molding spaces, each having apertures in the bottom, a plurality of cores arranged to be projected through the apertures, a common, vertically movable support for the cores, and means whereby said cores serve as a. sole support for all of the molds.

2. In a mold for casting material, a flat horizontal plate having apertures, means cooperating with said plate to form a pluralityI of mold spaces, a supporting structure for the late, and means forming cores for the mold) spaces, comprising a verticallymovable support, and cores carried thereby, said support and cores being movable to a position beneath the late.

3. In a multip e mold for casting material, a bottom plate, a stationary partition fastened to the plate, separating plates an chored to the partition plate, said separating plates extending on each side of the partition, and a pair of removable plates, one on each side of the partition, with which the separating plates cooperate to form the `mold Spaces, there being only two rows of mold spaces, one on each side of the stationary plartition. y

4. n a multiple mold for casting material, a plate forming the bottom of the mold, a partition fastened to the plate for forming the common wall between the two rows ot mold spaces, ysaid two rows being the only rows in the mold, se A arating plates arranged at right angles to t e partition and having projections entering into slots formed in the partition, means foranchoring said separatmg plates against withdrawal, and a pair ol removable plates parallel to but spaced from the partition, cooperating with the separating plates to forin the two rows of mold spaces.

5. In a multiple mold for casting material, a pair of independent supporting struc tures, means for a plurality of mold spaces supported by one of said structures, said mold spaces having apertured bottoms, and a plurality of cores arranged to be projected through the a ertures into the, spaces, and supported on t e other of said structures.

6. In a multiple mold for castingmaterial, a fiat platehaving a plurality of apertures, a plurality of spaced legs for slipporting said plate at a distance above the ground, a movable support arranged to be placed beneath the plate, a frame vertically movable and carried by said support, and a plurality of cores supported by said frame and arranged to' be projected through the apertures of the plate.

7. In a process for manufacturing molded articles havin'g cored apertures, by the aid of a mold having a bottom apertured late, and cores arranged to be passed throiigi the apertures, which comprises filling the mold with the cores in active position, transporting both the mold and the cores to a curing space, lowering the cores so as to permit the mold to rest on appropriate supports, and removing the core structure from the curing space.

8. In combination, a portable mold structurc, an independently portable core structure, said mold structure having apertures in the bottom through which the cores can extend vertically, and means for raising and lowering the core structure, said core structure serving as a temporary support for the mold structure during molding.

In testimony whereof, I have hereunto `set v my hand.

STEPHEN FLAM.

cores to distort the block in any way. This feature renders it practicable to remove the l cores very shortly after the blocks are cast.

I claim:

1. In a mold for-castin material, means forming a plurality of mo ding spaces, each having apertures in the bottom, a plural'it of cores arranged to be projected throug i the apertures, a common, vertically movable sup ort for 'the cores, and means whereby sai cores serve as a sole support for all of the molds.

2. In a mold for casting material, a flat horizontal plate having apertures, means cooperating with said plate to form a plurality of mold spaces, a supporting structure for the ilate, and means forming cores for the mol spaces, comprising a verticall movable support, and coi'es carried there y, said support and cores being movable'to a position beneath the late.

3. In a multip e mold for casting matei rial, a bottom plate, a stationary partition fastened to the plate, separating lates anchored to the partition plate, sai separating plates extending on each side of the partition, and a pair of removable plates, one on each side ofthe partition, with which the separating plates cooperate to form the `mold spaces, there being only two rows of the partition, cooperating with the separating plates to form the two rows of mold spaces.

5. In a multiple mold for casting material, a pair of independent sup orting structures, means fora plurality ol) mold spaces supported by one of said structures, said mold s aces having apertured bottoms, and a plura ity of cores arranged to be projected through the a ertures into the spaces, and supported on t e other of said structures.

6. 1n a multi le mold for casting material, a flat plate aving a plurality of aper tures, a plurality of spaced legs for su portinir said plate at a distance above t e ground, a movable support arranged to be placed beneath the late, a frame, vertically movable and carried) by said support, and a plurality of cores supported by said frame and arranged to' be projected through the apertures of the plate.

7. In a process for manufacturing molded articles havin'ir cored apertures, by the aid of a mold having a bottom apertured late, and cores arranged to be passed thro'ug i the apertures, which comprises filling the mold with tlier cores in active position, transporting both the mold and the cores to a curing ,y

space, lowering the cores so as to permit the mold to rest on appropriate supports, and removing the core structure from 'the curing space. i p

8. In combination, a portable mold structure, an independently portable core structure, said mold structure having apertures in the bottom through which the cores can extend vertically, and means for raising and lowering the core structure, said core structure serving as a temporary support for the mold structure during molding.

In testimony whereof, I have hereunto set my hand.

STEPHEN FLAM.

l sername o; correction. Y Y It is herab certilied that in Letters Patent No. 1,585,845, granted-May 25, 1926,

upon the a merit in ultilple Molds," v Y correction' as fo ws: VPage 1, line 19,4.for

ication'of Stephen Flam, of Walnut Park, California, for an mproveerrors appear 1iln the4 rinted specification requiriiigg t e -Woy block read blocks; page line 2, after the word provided strike out the comme `and insert a period; page 4, line 36, claim 4, after the word between strike out the article the same page, line 49, claim 5, for the word for read fami/im); and that` the said Letters Patent should be read with these corrections there record of the case in the Patent Oiiice.

Signed and sealed this 29th day of June, a n. 192e.

in' that `the jmay conform to the i ai. J. MOORE,

Acting Gommssom of Patents.

Certificate of Correction.

It is herab certified that in Letters Patent` No. 1,585,845, granted May 25, 1926, upon the a ication of Stephen Flam, of Walnut Park. California, for an improvement in ulti 1e Molds, errors appear in the printed specification requiring correctionv as fo ws: Page l, line 19, for the Word block read blocks; page 2, line 2, after the word provided strike out the comma and insert a period; page 4, line 36, claim 4, after the Word between strike out the articie the same page, line 49, claim 5, for the word for read formnq;'and that the said Letters Patent should be read with these corrections therein that the seme may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of June, A. D. 1926.

[SEAL] M. J. MOORE,

Acting Commissioner of Patents.

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