US1525000A - Multiple-pipe mold - Google Patents

Description

Feb. 3. 1925 1,525,000

T. SCHUSTER MULTI PLE P I PE MOLD Filed Feb. 18, 1924| 5 Sheets-Sheet 1 Feb. 3. 1925.

T sCHUsTER MULT I PLE PI PE MOLD 5 Sheet-Sheet 2 Filed Feb; 18, 1924 31 SQ SZ'kuSkr Feb. 3. 1925. 1,525,000

T. SCHUSTER MULTIPLE PIPE MOLD Filed Feb. 18, 1924 5 Sheets-Sheet 5 QWW ' III-51.121-

fiamma 5620245? Feb 3. 1925 T. SCHUSTER MULT I PLE PI PE MOLD Filed Feb. 18, 1924 Sheets-Sheet 4 Feb. 3. l 925.

T. SCHUSTER MULTIPLE PIPE MOLD 5 Sheets-Sheet 5 Filed Feb. 18, 1924 Patented Feb. 3, 1925.

' THOMASASGI'LUS'DEB, F TPHQENIZX, .ARIZONA.

To allwl om it may concern vBe it known thatfl, T -io iAs Soiius'rn i, a citizen of the United States, residing at Phoenix, in the county I of jlvlaiicopa and State of Arizona have invented certain new and useful Improvements inl lultiple ipe Molds and Ido declare the following to be a.full, clear, and exact description of the inventiomsuohas will enable others skilled in the art to Wliicliit appertainsto make and use the same.

My invention relates to in provements in cement IDOlClS ZtIlCl the present disclosure is directed primarily to a mold adapted .for thesi miltaiieous casting of aplurality of ceineiit pipes or tiles.

Qne object of the invention is to ,provide a inultiple nold. which may ,be easily and rapidly operated to simultaneously produce a plurality of pipe sections or therlikeflof uniform sizeand quality.

In the-preferred form of construction, each mold is provided with an QXpttHSiblE; and contractible core and-a further object is to provide a novel construction and. association of parts for moving a core expander into and outof the lower end of the core, contraction of said core for removal being permitted when said expander is disengaged there from, while insertion of said expandei; places the core in condition for use.

In the construction disclosed,.a plurality of the core expanders are carried by aiho'riontal vertically movable bar and another object of the invention is to provide unique means for raising andlowering this bar or a similar bar which might possibly be used for other purposes onianalogous molds.

Yet another object is to provide unique means for holdingthc mold'sin spaced relation for use, said means however being removable to permit the moldsto be removed from the completed pipes or the like.

;A still further'aiin is to provide unique sectional bell-forms for the pipe sections, the sections of said forms being connected with each other'in a novel manner.

Yet another object is to provide an improved form of conti'actible core provided at its upper end with novel meansfor limiting its expansion when an expander isiinted into such end.

' Further objects are to provide novel means for filling the molds and to produce unique centering means for their cores.

"With the forcgoi g and ininoi-objects in view, the invention resides .in the novel subect matter hereinafter described and claimed, the 1 description being supplemented by the accompanying drawings."

Figure 1 isfa longitudinal sectional view partly in elevationdshowing ainultiple mold constructed in accordance with my invent1on.

F gure. 1 is a plan viewof the mold filling trough. and core centering means carried thereby.

igure 2 is a fragmentary View similar to Figul, but illustrating the core e ipanders moved toa lowered inoperative position.

Figure 3 is a horizontalsectional view on line. 33 of Fig. 2.

ItiguieS is an enlarged sectional view of the mold fastener shown more particularly in Fig. 3. I I

Figure 4. is a vertical transverse sectional view as indicatedby lines li of Fig; 1.

Figure 5 is a perspective view of portions of the mold shown in the preceding-figures.

E1g L116 6 is a perspective view or a numloer 01' the coreeXpa-nders and their carry- 111g and operating means.

Figui e 1 is a peispective viewof the core shown in certain of the preceding figures. said corev be ng in its contracted position.

F igure 8 s afragmentary view siinilarto Fig. I, but illustrating themanner in which the core ISQYPdIldGCl at its upper end.

F gure. 9 1s a perspect ve vicw showing a noldwhich. maybe used in place of those illustrated in the preceding figures.

Figure 9 1s a fragmentary perspective view of theopposite side ofthe mold shown llli'Elgr 9.

"F1g-Ul:6 l() is a. perspective view illustrat- 111g adiiiereiit form of core.

1 Figure 11 is a fragmentary plan view Sl1O \Vl11g a fO111l of mold positioning means 'lllCli differs fromthe corresponding means shown in views above described. V

Figui'e 12 is a perspective view showing a still further; form of mold positioning means.

-F1gure is aperspect ve view llustrating yet another var ation of the mold pos tioii. ing means. V

{Figure 1s is a fragmentary view similar to F g.- 1 illustrating molds of a different com struction. i

Figure '15 is a transverse sectional view on line 1515 of-Fig. 14:.

=Figure16 is a horizontal sectional view on line .6-4.6 of F g- 1 i Figure 17 is a disassembled perspective view of portions of the molds shown in Figs. 14, 15 and 16.

In the drawings above briefly described, the numerals l designate a plurality of parallel transverse sills from whose ends, posts 2 rise rigidly, the upper ends of said posts being connected by horizontal bars 3 wh1le similar bars 4 connect said posts at lower points. A plurality of parallel longitudinal stringers 5 are secured upon the sills 1 in spaced relation, to support a plurality of rows of pipe molds 6. Each row of these molds may well be formed of two units as shown in Fig. 5, said units being of stamped metal in most instances with slots 7, through which appropriate releasable fasteners S are passed to secure them together. Each fastener 8 is preferably of the construction detailed in Fig. 3, in which a bolt is shown formed of two telescopic sections 8" and 8" one of which is squared or otherwise shaped to pass through a correspondingly shaped opening in the other section. The two bolt sections are secured together by threading a nut 8 on the inner section, and the outer ends of each section is formed with a flat head 8. The bolts pass rotatably through openings 7 in one unit or section of the molds and are insertible through slots 7 in the other section or unit, and by turning the bolts by grasping either head 8, they may be disposed for connecting or disconnecting the two mold sections or units. The edges of the slots 7 are preferably reinforced as The lower ends of the molds 6 are shown provided with bell forms 9 to co-operate with suitably shaped bottom plates 10 in forming bells at the lowerends of the pipes being cast. The bottom plates 10 are formed with central openings 11 into which the lower ends of tubular, eXpansible cores 12, are insertible. For the purpose of expanding these tubular cores 12, suitable core expanders 18 are used, for reception in their lower ends. lVhile the cores may be of any desired form, I have shown them in most views as formed of sheet metal, bent into the form of a tube with slidable overlapping edges 14 (see Figs. 7 and 8). hen these cores are in place and the expanders 13 are disposed in their lower ends, such ends are expanded to their proper diameter and so held. Additional expanders 15 are insertible into the upper ends of the cores 12 to expand them to the proper extent and each of these expanders, may well be of sleeve-like form, with a handle 15. In order to limit the expansion of the upper ends of the core, I prefer to provide said upper ends with rings 16 which surround them, each ring being secured at at least one point to its respective core. If desired, a chain or the like 17 may connect dian'ietrically opposite portions of the core 13 and extend across the interior of such core as shown in Fig. 8, so that when the expander 15 is removed, said chain or the like may be pulled inwardly thus contracting the core and withdrawing it from the completed pipe.

For simultaneously filling the molds 6 of} any row, I have proi ided a trough 6 to rest: on rails 6 supported by the posts 2, said trough having mold receiving openings 6 in its bottom, whose walls are inwardly de c-lined as shown. Cement or the like poured in the trough 6 will run readily into the numerous molds 6 around the cores 12 which are centered by novel means carried by the trough. In the present showing, this means comprises transverse arms 6 hinged at 6' to one side of the trough and having pins 6 receivable in openings 6 in the ha11- dles 15.

In Fig. 10, a form of core has been illustrated, comprising two sections 18 and 19 each of slightly more than semi-circular form, with their edge portions in overlapping relation. This form of core may be used with the expanders above described,

and I have illustrated a ring 20 thereon to limit its expansion.

For the purpose of holding the numerous molds 6 in proper position, I have shown upper and lower mold-positioning means. In the form of construction shown in most views, these positioning means comprise. horizontal bars 21 disposed at opposite sides;

of the several rows of molds and having inner edges of segmental formation to engage the molds. The bars, 21 rest upon the bars 3 and 4 above described and in order to hold them in proper engagement with the molds, longitudinal wedge bars 23 are preferably provided between the bars of adjacent rows of molds.

In Fig. 12, a different form of mold-positioning means has been shown, as coinprising a pair of parallel angle bars 24am] cross plates 25 extending between them with their adjacent edges of segmental form. as indicated at 26. This construction is intended primarily for use when, instead of using the molds 6 above described, separate one-piece molds such as the one indicated at 27 in Fig. 9, are employed. In this last named figure, the mold 27 is provided with a. suitable arrangement of interfitting flanges or the like 28 on its edges and a suitable clasp or fastener 29 is provided to hold the mold in contracted position and to permit expansion thereof when it is to be removed from the finished product. To allow expanding and contracting movement of the bell 2. of mold 27, it is split at 27" Fig. 9 and the split is covered by a thin plate 2T loosely connected with the bell for instance by rivets or the like 27 passing through slots 2". i

llfi

molds ct any character, such asthe molds 27 or 6. p

The core expanders 13, above described are carried by longitudinal, horizontal bars 32 disposed between the sills 5 and normally flush with the upper sides of the latter, to assist in supporting the molds. In the construction shown, the bars 32 are of channel form with their side flanges 33 turned downwardly. For supporting these bars, parallel' links 34 and hand levers 35 have been shown. said links and levers being pivoted tothe flanges 33 and having their lower ends pivoted to longitudinally sliid'able bars 36 which are positioned under the bars 32-. In the present showing, the bars 36 are of channel form and may rest slidably-upon' the sills 1, the links and levers being-pivoted, to the upstanding side flanges of saidbars. These flanges are formed withlongitudinal slots 37, and transverse straps 38 secured: to the sills 1, pass across the bars and through said slots to properly guide the latter and retain them in, place. The *bars 32, are guided in their vertical movement, by ver tical belts or the like 39 whoselower ends may slidably rest upon the bars36., Be-

tween their ends, the leviers '35 are tulc rum ed.

at 40 to the ends of the bars32 iand it will'be seen that by grasping'these levers and operating them, the ba'rs'3G'maybe slirhlongitudinally, thus causing the linksi3t ro aise or lower the bars 32 as occasionmay'require. Thus, the core expander-s 12-may be-raisedto operative positions, or lowered to permit contraction and removaliof the cores. Also, attention may be directedltothe fact-that in some instances, the vertically movable bars 32 might perform functions other than carriers for the expanders 13. For instance; in casting any objects which do not'require the use of cores, these cores may be removed "from the bars 32 and the latter would then -o-operate with the stringers 5' in supporting the molds and might possibly carry shaping devices or the like, for the objects being-cast.

In Figs. 14c to 17; I have showna different mold construction, in which the'body portions of the molds 42 are truly cylindrical and are longitudinally split, said body. portions being provided with appropriateclasps or fasteners 43 for normally holding.- them in proper position, but for permitting ex.- pansion' thereof for removal; "Ilie lower ends of these molds co-operate' with-sectional bell forms 44 which are pi'efer'ably of cast metal, each form 44 being divided on a. line extending longitudinally of its row of molds, into two halves 45. The halveseatreach side of any row of-molds,v are carried by an angle iron bar a6 and a fiat bar 4-? which are secured to sui tablebosses 48. with. which said halves are provided. The *inner 'en'dso l these halves-are formed with fi'ztllgGS 9' parallel with the dividing line of the tori-us 44-: and in abuttingrelation. with each other when the halves are assembled for use. To hold these halves'in assembled relation, I have shown hookson the bar elfi of one row of't'he halves 45 to engage the flanges 49' on the other- TOW'Of suclr halves. At their upper portions, the forms la-are preferably flared to tightly receive the low'ei-"ends of the molds 42.

Front the "foregoing, taken in connection with the accompanying drawings, the constructionl'and' operation or? the mold will be readily understood and it will be seen that it'vvill be very advantageous for performing numerous kinds otwork, but primarily for the formation-of pipe or tile sections, either With. or Without bells.

As excellent results may be obtained firom the details disclosechthey may be followed if desired, but Withinthe scope of the invention." as claimed;numerous changes may be made. i

I claim:

1. In a moldhaving' avertically movable member at its lower end; a second member below the first named. member, 111 eans slid ably. mountingsaid' second member for horizontal: n'iove-n'ient, and means interposed? between the two members and controlled by the slidingmovement .of said second memberfor effecting vertical"movement of the first named i'nei'nber.

'2: Ina mold having a: vertically movable member' at its lower end" adapted to be lowered to remove the product; a. h'orizontah ly. movable slide under said-L vertically movablemember, and: parallel linkage connecting saidin'iember and? slide, whereby sliding movement, of thenlatter. will; vertically move the former.

3. In; a: multiple m'oldi having a horizontally elongated: vertically inova ble bar at the'lower 'eirds'of; its" molds; second horizontally elongated bar under said; first named bar,;-1neans: mounting said second bars-for longitudinal: sliding, and parallel bar. will. effect vertical movement of the: first named bar.

4. 'rhstructure assp eeified in claim; 21; to

'gether, with a handi lever tulcrumedto sa i d vertically movable member and: pivoted to said slide for effecting slidingof the-latter and; alsoexertingpressure directly on said nio'varble:member 111 aventmal direction.

In. a. multiple mold having a. vertically movablebar at thelower ends of its-molds, and! a? base undersaid 'bar:. a channel bar resting-slidably on: said; base and having longitudinal slots in its side flanges, straps Lil passing across said bar and through said slots, parallel links pivoted to said vertically movable bar and to the side flanges of said channel bar, and a hand lever fulcrumed to one end of said vertically movable bar and pivoted to said channel bar.

6. A device of the class described comprising a. pair of horizontally spaced hori zontal mold supports, a horizontal member normally disposed between and flush with the upper sides of said supports, a mold supported jointly by said supports and member and having an expansible core, a core expander rising from said member into said core, and means for lowering said member and expander to permit contraction of said core.

7. A device of the class described comprising mold supporting means, a mold supported thereby and having an expansible core, a vertically movable member under said core having on its upper side a core expander received in said core, and means for raising and lowering said member.

8. A device of the class described comprising a frame structure having; mold-supporting means and including additional spaced horizontal supports above said supporting means, vertical molds resting on said supporting means, and horizontally disposed segmental mold-positioning means engaged with said molds and resting on said space-d horizontal supports.

9. A device of the class described comprising a frame structure having mold supporting means and including additional spaced horizontal supports above said supporting means, vertical molds resting on said supporting means and disposed in parallel rows, horizontally disposed segment bars resting on said spaced supports, and engaging opposite sides of said rows of molds, and wedging means between the segment bars of adjacent rows.

10. A device of the class described comprising a pair of spaced parallel sills spaced parallel pairs of stringers extending between and secured to said sills, posts rising from the ends of said sills, horizontal bars over said sills secured to said posts, parallel rows of vertical molds supported by said pairs of stringers and having expansible cores, vertically movable horizontal bars between said stringers having core expanders receivable in said cores, and segmental mold positioning means engaging opposite sides of said rows of molds and resting on said first named horizontal bars.

11. A device of the class described comprising mold supporting means, a vertical mold resting thereon and rising therefrom, said mold having an expansible core, a vertically movable core expander insertible upwardly into the lower end of said core, and

prising mold supporting means, a vertical mold supported thereby and including an expansible tubular core and a bottom plate, having an opening through which the one is insertible, and a core expander insertible upwardly into said core.

13. A device of the class described comprising a mold having an expansible core and an expander in the upper end of said core, a filling trough communicating with said mold, and core-centering means carried by said trough and engageable with said expander.

1a. A device of the class described comprising a mold having a core provided at its upper end with an opening, a filling trough communicating with said mold, and a pivoted arm carried by said trough and having a downwardly extending pin receivable in the aforesaid opening to center the core within the mold.

15. A structure as specified in claim .13; said expander having an opening in its upper end, said centering means comprising a pivoted arm having a downwardly extending pin receivable in said opening.

16. A multiple pipe mold comprising a row' of spaced bell forms, each divided longitudinally of the row into two separable halves having abutting flanges parallel with the line of division of said forms, a pair of longitudinal bars secured to said halves respectively for holding them in fixedly spaced relation, and hooks pivoted to the bar of one row of halves and engageable with. the flanges of the other row of halves to hold the forms together.

17. An elongated mold having a bell at one end and having a split throughout its length, said bell having another split, and a loosely held plate extending across the last named split.

18. A device of the class described comprising a tubular expausible and contractible mold member, means for expanding the same, and a ring surrounding said mold member to limit its expansion, said ring being attached to said mold member at at least one point.

19. In combination with a two-part mold having a slot in one part and a smaller opening in the other part; a bolt swiveled in said opening and receivable in said slot, said bolt consisting of two telescopic sections relatively non-rotatable and having operating heads at their outer ends, one'of which may either pass through or extend across said slot.

In testimony whereof I have hereunto affixed my signature.

THOMAS SCHUSTER,

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