US894925A

US894925A - Mold for casting chilled rolls.

Info

Publication number: US894925A
Application number: US34945206A
Authority: US
Inventors: Ralph H West
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-12-26
Filing date: 1906-12-26
Publication date: 1908-08-04
Anticipated expiration: 1925-08-04

Description

5 SHEETS-SHEET 1.

No. 894,925. V PATLNTLD AUG. 4, 1908. l R.E.WLST. r Y

MOLD 'POR CASTING GEILLED ROLLS. APPLICATION FILED DEO.26, 1906.

1..... ,95 pf 2P. L. L. y w 0 Qfmvf M @Il ,sw Y* ...,W,.,O.Z. /W ...f 5o 3..,FQ. \A

ATTORNEYS -PATLNTLD AUG. 4, 1908.

Nd. l894,925.

l Rf. H. WEST. v MOLD PoR CASTING SHILLLD ROLLS;

No. 894,925. 'v -PATENTED AUG. 4, v1908.

P.. H. WEST. MOLD P0P. CASTING CHILLED ROLLS.

APPLIoAmIoN' FILED 1320.26 190e.

- @SHEETS-SHEET a.

E: A TTOH/VEl/S No. 894,925. 'PATENTED MIG. 4, 1908.

3.11. WEST'.

' MOLD FOR `CASTING GHILLEDJROLLS. A. PPLIUAIION FILED DEd.2 6,19o6.

WIT/VESSES:

PATBNTED' AUGA, 190s.

y. vMOLD PoR CASTING GHILLED RoLLs'.

.APPLICATION FILED DBO. 26, 1906. 5 SHEETS-SHEET al. 7 x

RALPHl n. wEsT, OE CLEVELAND, OHIO.

' MOLD FOR CASTING CHILLEDy RoLLs.

To all whom it may concern:

Be 1t known that I, RALPH II. WEST, a citizen of the United States of America, residingat Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Molds for Casting Chilled Rolls;l and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same. n

This invention relates to improvements in molds for casting chilled rolls. y f

The primary object of this invention is to provide a roll-casting mold which is beneficial in the manufacture of chilled `rolls for obtaining castings which have all the vrequirements essential for the production of a chilled roll in which theV chilled peripheral crust or shell of the roll-body is uniform in thickness circumferentially and `from end to end of the roll, free from checks or cracks and other imperfections and found to beperfectly round when put in a lathe to be turned.

With this object in view, and to the end of realizing other advantages hereinafter appearing, my inventionv consists, first, in the provision of means whereby the upper moldpart or cope and a partition-forming head which forms a support for the loam or molding sand forming the surrounding wall or walls and bottom of the roll-neck-forming cavity of the drag not only can be lowered simultaneously to accommodate a descent of the casting while the chill and the drag-casing remain stationary but the said head is supported by a body of loose sand or similarly fluent or readily displaceable material which is contained within a chamber formed below the said head and a perforatedbottom with which the drag-'casing is provided under the said loose material with the perfrations in the said bottom communicating witha receptacle operatively connected with the cope and arranged to receive material passing downwardly through the said perforations.

during the descent of the receptacle, and a lowering of the said receptacle by the descent of the cope will permit loose sand or fluent material to gravitate through the aforesaid perforations into the receptacle and thereby result in the lowering ofthe afore-l said head and any bodies of loam or molding sand forming the surrounding wall or walls and bottom of the drag-cavity, and conse- Specication of Letters Patent.

Application mea December 26, 190s. serial No. 349,452.

Patented Aug. 4, 1908.

quently accommodate the descent of the casting being produced in the mold; second, to automatically measure the distance which the cope' lowers during the production of the casting; third, to provide an annular chill whose internal chamber not only extends from end to end of the chill but has its surrounding wall composed of superimposed alternately arranged solid and sectional rin s which have such contour or shape interna y that the casting is supported by the chill at suitable intervals vertically during and until vafter the contraction of the casting in the operation of the mold and the crust or shell of the roll-body-forming portion of the casting is accurately centered during the whole cooling or contraction of the casting; fourth, to provide a 'chill which is not only com osed of superimposed rings convenient in t e separation of the chill from the' casting produced in the mold and provided internally with sloping seats arranged to center and support the roll-body but in which the roll-bodyforming portion of the casting is entirely free from the sloping seat-forming surfaces formed internally of the solid chill-rings and is centered and. whollysupported by the sectional chill-rings upon the completion ofthe cooling or contraction of the casting; fifth, to so support the cope that the roll-neck-forming metal in the cope can be readily lowered `independently of the roll-body-forming portion of the casting during the operation of the mold to insure the formation of a good union between the roll-neck formed in and by the cope and the roll-body; sixth, to avoid undue strain during the upward eX- pansion ofV the chill-composing rings upon the means employed in preventing upward displacement of the uppermost or to chillring seventh, to provide simple an desirable means for automatically measuring the horizontal contraction ofthe roll-body-forming portion of the casting during the operation of the mold; eighth, to provide simple and meritorious means whereby the co e can be adjusted relative to the chill and t e drag; ninth, to provide means whereby the aforesaid receptacle is detachably fastened in conducting molten metal to the dragcavity, and eleventh, to attain other advantages which may hereafter appear.

In the accompanying drawings, Figure 1 is a side elevation of a roll-casting mold embodying my invention, and in this figure the mold is shown within a pit which is drawn in central vertical section, and portions are broken away and in section in this figure to more clearly show the construction. Fig. 2 is a top plan relative to Fig. 1. Fig. 3 is a vertical section in detail on line 3 3, Fig. 1, looking in the direction indicated by the arrow. Fig. 4 is a horizontal section in detail on line 4 4, Fig. 1, looking downwardly. Fig. 5 is a central vertical section on line 5 5, Fig. 2, looking in the direction indicated by the arrow. Figs. 6 and 7 are transverse sections on line 6 6 and line 7 7, re-

spectively, Fig. 1, looking downwardly. Fig. 8 is a vertical section on line 8 8, Fig. 5, looking in the direction indicated by the arrow. Fig. 9 is a horizontal section on line 9 9, Fig. 8, looking downwardly. Figs. 3, 4, 8 and 9 are drawn on a larger scale than Figs. 1, 2, 5 and 6 which are drawn on the same scale.

My improved roll-casting mold comprises a lower mold-part or drag A, a central moldpart or chill B and an upper mold-part or cope C. The chill B (see Figs. 1, 5, 8 and 9) is stationary, being supported as will hereinafter appear. The chill B is annular and arranged vertically, having its roll-body forming chamber b extending from end to end of the chill. The upper mold-part or cope C (see Figs. 2 and 5) is circular and provided centrally with a chamber 13 which extends vertically through the cope and is arranged centrally of the upper end of and in communication with the chill-chamber b. The cope C depends into and snugly but slidably fits within the upper end of the chill. The cope C is sup orted as will hereinafter appear from the c ill in such a manner as to render the cope capable of being lowered within the chill.

The drag A (see Figs. 5 andI 6) is provided with a cavity a arranged centrally of the drag and extending downwardly from the u per end of the drag a suitable distance. T e cavity a is arranged centrally of the lower end of and in communication with the chillchamber b. The body of the roll to be produced is cast in the chill B whereas the necks of the roll are cast in the drag and cope. The drag-cavity a and the cope-chamber 13 are ofcourse enough smaller diametrically than the chill-chamber b and have the general outline required to form the necks of the roll to be cast.

The' surrounding wall or walls of the upper end-portion of the `drag-cavity a (see Figs. 5 and 6) are composed of a body of suitable sand or material such, for instance, as what is known in the art as loam or loam-sand a, which body slidably l(its internally of and is surrounded by a stationary metal casing E whose internalsurface is smooth. rl`l1e said body c projects somewhat into the chillchamber b and is detaehably secured to the casing E by pins D which have bearing in the said casing and extend a suitable distance into the body (1,. The pins l) are withdrawable endwise from the body a to detach the latter from the casing E and permit the said body to descend as will hereinafter appear with the body of loam-sand A which l'orms the surrounding wall or walls of the lower ortion and bottom of the cavity 1.. '.lhe body A slidably `lits within andis surrounded by the casing E which (sce F ig. 5) also snrrounds ahead F which slid ably'iits internally.

of the said casing and iorms a support lor the said body A of loam-sand. The head F is adapted to be lowered or shifted vertically downwardly within the casing E. The head F rests upon a body of loose sand or similarly readily displaceable or iluent materialf which (see Figs. 5 and 7) is arranged within the easing E and below the head F, and the head F forms a partition between the body ol` material f and the lower of the superimposed bodies a and A/ of. loam or molding sand.

The casing E (see Fig. 5) has a perforate l bottom e which is instrumental in supporting the body of loose material f. 'lhe casing E is provided externally and next above the bottom c with an annular llange E (sec Figs. 1, 5 and 7) and the bottom c is formed by a circular head which is provided externally with an annular lla-nger arranged next below the casing-flange E and resting upon stationary posts or supports G. The bottom e is provided in its upper side with an annular recess c2 whose side walls diverge. upwardly. The bottom c is provided in its under side with an annular recess er" whose side walls diverge downwardly. rlhe recesses c2 and ef are arranged in line vertically. The perforations e4 formed in the head or bottom e extend vertically through the latter at the lower ends of the walls of the upper recess @2 and establish communication between the recesses c2 and c.

A suitably supported receptacle ll (see Figs. 1 and 5) slidably embraces the bottom e from below and is capable of being` lowered, and any chamber or space 'formed between the perforated bottom c and the bottom ol the receptacle H is -filled with loose. sand or similarly readily displaceable or fluent material g, and obviously the material f is displaced from above he bottom e through the perforations or passage-ways c1 into the receptacle H during the lowering of the receptacle. The receptacle H is operatively connected and consequently movable with the cope C as will hereinafter appear.

The cavity a is provided at one side and a section K of the cope-casing.

suitable distance below the up fer end ofthe cavity (see Figs. 5 and 6) wit an inlet for molten metal, and the mold is poured through the said inlet which' is formed by the discharging 'end of a runner-gate which j (see Figs., 1 and 6) has an upper upright portion c3 and a lower portion 0.2 which extends hori-` of the runner-.gate is surrounded by a casingl E3 which rests upon and is suitably attached to the casing E2.

The runner-gate-casing E2` comprises a removable section E4 arranged opposite the outer end of the laterally extending portion a2 of the runner-gate and externally of the lower end of the upright portion a3 of the runner-gate. By removing the section E4 access is had to the interior of the laterally eX- tending portion a2 of the runner-gate and to the lower end ofthe upright portion a3 of the runner-gate to facilitate the removal of the material forming the runner-gate. The casing-section E4 is preferablyV detachably secured to the adjacent portions of the runnergate-casings by suitably applied bolts and nuts, as at l.

f The lower or inner end-portion of the copechamber 18 (see Fig. 5) has the outline and dimensions required to form the inner endportion of a roll-neck between the outer and wabble-formingend-portion of the said neck and the body of the roll, and the surrounding wall or walls of the said portion of thecopechamber are formed by a body of loam-sand 14 built up within and "surrounded by and supported in any approved manner lfrom a metal casing K which constitutes the lower section of the cope-casing, and the remainder of the cope-chamber has the contour and` dimensions re uired to form the wabble-formwithin and surrounded by and supported in any approved manner from a metal casing 7c which constitutes the upper section of the cope-casing. The casing-section k is seated on but removable from the top of the lower It will beobserved therefore that the cope comprises an upper part which consists of the `casing-section 7c and body of loam-sand 15 and a lower part which consists of the casing-section K and body of loam-sand 14.

The upper cope-casing-section 7c (see Figs. 1, 2 and 5) is provided at its lower end and externally withlaterally projecting lugs k spaced circumferentially of the said copecasing-section. Through each lug 7c extends a screwJ whichis arranged with its head abutting against the upper side of the said lug,

which screw has its threaded shank screwedl into the flange K. Obviously therefore the upper cope-casing-section is detachably secured to the lower cope-'casing-section, and onlythe withdrawal of the screws J is required to accommodate the separation of the upper cope-part fromthe lower cope-part. The lower cope-casing-section and consequently the cope are supported from the chill as will hereinafter appear.

rllhe chill B (see Figs. 1, 5, 8 and 9) is composedy of superimposed metal rings arranged in line vertically, and the surrounding wall of the chill-chamber is formed by superimposed alternately arranged solid rings R and secsnugly embraced by the lower end of the lowermost solid chill-ring R which rests upon the said casing and is'accurately centered relative to the drag-cavity.

The uppermost or top chill-ring is formed by a solid-ring R, and each solid chill-ring R (see Figs. 5, 8 and 9) is provided in its lower end and Vinternally with an annular recess 17 whose surrounding wall is beveled,-that is, slopes upwardly and inwardly,-which recess is snugly engaged by a sectional ring 1' which is preferably beveled externally to conform to the beveled surrounding wall of the said recess. Each sectional ring r, savethe lowermost sectional ring, rests on the next lower solid ring. The lower end of the upper of adjacent solid rings R snugly embraces the upper end of the 'lower of the said rings 'and rests upon an upwardly facing shoulder l'formed externally of the said lower ring a tends vertically through each chill, and which forms a ortion 'of the chill-chamber l), has an upward y flaring surrounding wall which forms a downwardly and inwardly sloping seateforming surface extending circumferentially ofthe chill, and the sloping seat-forming surface internally of each sectional ring is arranged below and flush at its upper end, as at 20, with and forms a downward extension of the sloping seat-forming surface formed internally of the solid ring surrounding the said sectional ring. Obviously Jtherefore the upper of adjacent sectional rings r overhangs the sloping seat-forming 'surface of the next lower solid ring R.

Each section of each sectional ring to prevent warping of the same is (see Figs. 5, 8 and 9) provided at the bottom of its outer portion with a downwardly projecting flange r extending between the ends of the said section and having its inner surface vertical, and the flange r of the sections of the upper of adjacent sectional rings snugly overlaps a laterally and outwardly facing vertically arranged shoulder R which is formed upon the nextl lower solid ring above the upwardly facing shoulder 18 of the said solid ring and between the last-mentioned shoulder and the sloping seat formed internally of the said solid ring.

By the construction hereinbefore described it will be observed that the chill is provided internally with vertically spaced downwardly and inwardly sloping seats extending circumferentially of the chill; that the chill comprises solid rings which are arranged in line vertically; that each solid ring is provided at its lower end andv internally with a recess extending circumferentially of the chill; that each solid ring is also provided internally next above the said recess with a downwardly and inwardly sloping seat-forming surface extending circumferentially of the chill and participating in the formation of the surrounding wall of the chill-chamber l); that the sectional ring which occupies the said recess is provided internally with a downwardly and inwardly sloping seat-forining surface, and the sloping seat-forming surface of each sectional ring is smaller diametrically than the sloping seat-forming surface of the solid ring which embraces the said sectional ring; that the sectional rings, being divided vertically'into sections, facilitate the separation of the chill-rings from the casting; that the upper of adjacent sectional rings rests upon the next lower solid ring; that the lower of adjacent solid rings is provided externally with an u wardly facing shoulder 18 extending circum'erentially of the chill and forming a bearing for the upper of the said adjacent solid rings that each of the internal downwardly and inwardly sloping seats of the chill is formed by a plurality of suitably supported rings extending circumferentially of the chill, that the lower portion of cach of the said seats is formed by a sectional ring; that the upper portion of each of the said seats is formed by a solid ring; that the uppei` of adjacent sectional rings is overlapped on top by the solid ring embracing it; that the relative dimensions of the seat-forming surfaces of the solid rings and the seat-forming surfaces of the sectional rings are such that the casting produced in the mold shall after wholly cooling or contracting rest only upon the seat-forming surfaces of the sectional rings, and that warping of the sections of the sectional rings is successfully prevented,

Each sectional chill-ring r (see Fig. S) is preferably rounded, as at 24, at the junction of the lower end of its sloping seat-forming surface with the bottom surface of the ring.

A chill made as hereinbefore described is simple and inexpensive in. construction and an independent renewal of different portions of the chill is readily accommodated.

Each solid chill-ring below the uppermost solid chill-ring is provided in its upper end with grooves or recesses 29 arranged radially and spaced circumferentially of the chillring, which grooves or recesses form holes at the joint between the said chill-ring and the next upper sectional chill-ring for the escape of air and gases from interiorly of the chill during the pouring and operation ofthe mold, said grooves or recesses extending to the outer circumferential surface of the solid ring in which they are formed, but only into close proximity and not to the internal sloping seat-forming surface of the last-mentioned ring` so as to positively avoid the ingress of molten metal into the said recesses during the pouring of the mold without preventing the escape of air and gases from within the chill into the said recesses bccause the joint formed between each sectional ring and the next lower solid ring not airtight and consequently loose enough at the inner ends of the said recesses to accommo date the said escape of gases and air.

The slope of the lower of two adjacent sloping seats is less than the slope of the upper of the said seats so that the slant of the lower of the said seats is at a greater acute angle to a horizontal plane than the upper of the said seats as not only clearly but exaggeratively indicated by the illustrative dotted lines d in Fig. S. The contracting casting is therefore accurately centered relative to and. from end to end of the chill by the said seats during and until after any lowering of the casting while the casting is cooling or contracting. ln casting a roll by my improved mold the peripheral crust or shell of the casting formed in the chill is during and upon its contraction maintained in a strictly cen-l tral position relative to the chill and snpported circumferentially of and upon the aforesaid sloping seats. The casting is supna y of the chill so'that thesaid shell or crust is not liable to be cracked or put out of rounder rendered defective by the pressure of molten metal within and centrally of the casting. V

The lower cope-casing-section K and consequently the co e (seeFigs. 1, 2 and 5) `is adjustable vertical y as will hereinafter appear, and, as already indicated, supported from the chill. The flange K (see Figs. 1 and 5) of the said cope-casingfsection K overhangs lugs 25 which are formed externallyof the uppermost or top chill-ring R and spaced circumferentially of the chill. Through each lug 25 loosely extends a suitably sup? ported vertically larranged rod L, and consequently several upright rods L are arranged externally and spaced circumfer'entially` of the chill. The rods L extend loosely throughv holes 26 formed in lugs 27 formed onand externally of the upper endof the drag-casing E and are screw-threaded at their lower ends under the lastmentioned lugs,v and correspondingly threaded nuts Z (see Figs. 1 and are mounted'on the shanks of the said bolts next under the said lugs. The nuts `Z prevent upward displacement of the rods L which (see Figs. 5 and 6) are square or angular in cross-section where they extend throu h the lug-holes 26 which are corresponding y angular and conform tothe said angular portions of the rods to prevent turning of the rods. Y

Each rod L is screw-threaded from the upper side of the chill-lug through which the rod extends to the upper end of therod, and a correspondingly threaded nut 'm (see Figs. 1 and 5) is mounted on the said rod above and rests on the said lug, but a block or piece n of -Wood or similarly somewhat compressiblematerial is interposed between the said lug and the said nut. `Obviously therefore the rods L are supported from the uppermost chill-ring through the medium `of the nuts m and compressible members n, and obviously the said compressible members and nuts prevent upward displacement ofthe said chill-ring. a prevent undue strain upon therods Land nuts m and Z by any tendency of the chill to exrnd upwardly during the operation of the mo n j Cope-supporting nutsv O` (see Figs 1, 2 and 5) are mounted on the upper portions of the rods L andloosely engage and are turnable within holes 28 formed lin the Hange K of the lower cope-casing-sectionK. Each nut O is provided at its lower end and externally and below the said flange with an upwardly facing annular shoulder O which forms a seat for anti-friction balls O2 which are interposed between the said 'shoulder and the flange The compressible members K soY that the cope rests upon anti-friction bearings. ,y

The chill B' (see Figs. 4 and 5) is provided in its lower ortion with a hole 30 which eX- tends laterally from the interior to the exterior of the chill, which hole is formedpartially in the lowermost solid chill-ring R and partially in the under side of the adjacent portion'of lthe second lowermost solid chillring and is somewhat enlary ed at its inner end, as at 32. vA horizontal y arranged bar or member P engages the hole 30 and is shiftable inwardly. The member P extends a suitable distance outwardly beyond the exterior of the chill and is provided at its inner end vwith a head P which engages the enlarged inner end 32 ofthe hole `30 and is beveled and arranged flush in its outer and nori mal position with the sloping seat of the lowermost solid chill 'ring. The head P obviously therefore forms astop for limiting theoutward-movement ofthe member P.

The endwise yshiftable member P is ar- :ranged to be engaged at its outer end (see the adjacent wall of a pit 35 in which my improved mold is arranged and operated. The

slide Q is operatively engaged by the lower end of a lever T which extends through a slot Q in the'slide and is fulcrumed, as at 36, to the said bracket a short distance above the travel of the slide Q and horizontally and at a right angleto the said travel. The lever T extends upwardly to and above the upper end of the pit 35 and terminates at its upper end in a pointer t arranged to coperate with c a scale or graduated surface 37 formed on one side of a bracket u which is supported in any approved manner from the adjacent wall of the pit. The pointer t and scale 37 cooperatein measuring and indicating the distance which the gage-forming member P is moved into the'chill-chamberupon the swinging of the lever by the action of asuitably applied weight w in the direction required to move the said gage-forrning member into the chill. The'bracket u (see Fi s. 1 and 3) is slotted below and longitudinal y of the scale, as, at 38, and the slot 38 is engaged by a bolt 40 which is arranged with the head thereof abutting against one side of the bracket, and

a correspondingly threaded nut 42 is mounted von the shank ofthe bolt at the other side of the bracket. The lever T is normally in position holdingv the slide Q in its outer position, and the lever is held by the bolt 40 from being actuated by the weight w, which bolt is secured in the desired adjustment by tightening the nut 42 which is of course loosened preparatory to the operation'of the lever. in the direction vrequired to cause the gageforming member P to move inwardlyfgggg prises a vertically arranged rod which (see Figs. 1, 2 and 5) extends loosely through a lug 7c3. formed on and externally of thev upper end of the upper cope-casing-section lc and loosely through the flange K of the lower eope-casing-section K and rests upon the uppermost or top solid chill-ring.

Upright rods y (see Figs. 1, 2, 6 and 7) which have externally screw-threaded ends are vertically arranged externally and spaced circumferentially of the chill B and extend loosely through the flange K of the lower cope-casing-section K, as shown in Fig. l, and loosely through holes 46 formed in laterally projecting lugs 47 with which the top chill-ring is externally provided and loosely through holes 48 formed in laterally and outwardly projecting horizontallyarranged arms H with which the rece tacle H is externally provided, and preferabljy the rods y where they extend through the holes 48 are angular in cross-section, and the said holes are correspondingly angular and conform to the said angular portions of the rods so that turning of the rods is prevented. Nuts 50 are mounted on the rods y above the flange K of the cope-casing-section K, and nuts 52 are mounted on the said rods i next under the projecting arms or members H of the receptacle H. The receptacle H is normally detachably secured to the dragcasing E preferably by bolts 53. and nuts 54 (see Figs. 1 and 7). The bolts 53 extend vertically through the receptacle-arms H and flanges e and E and are arranged with their heads at the under side of the said receptaclearms, and the nuts 54 are mounted on the shanks of the said bolts at the top of the flange E. The rods y and engaging

nuts

50 and 52 suspend the receptacle H from the cope when the receptacle is detached from the drag-casing by removing the nuts 54 and bolts 53. The rods y and the engaging

nuts

50 and 52 form an operative connection therefore between the receptacle H and the cope, and the cope and the said receptacle together with the loose sand or material g and f, head or partition F, bodies of loam-sand A e and the casting can be lowered simultaneously while the chill and drag-casing remain stationary, and the cope and receptacle are lowered by gravity assisted by a proper manipulation of the nuts 50 upon turning the nuts O in the direction required to permit the cope to lower. In the normal and upper position of the cope the receptacle H abuts against the under side of the iiange e of the bottom e of the drag-casing, and hence upward displacement of the cope during the pouring of the mold is prevented.

Preparatory to any lowering of the re` ceptacle H continuity in the laterally extending portion of the runner-gate (1.2 is interrupted at the junction ol'v the easing E with the body of loam-sand (1 by a suitably applied and suitably operated cut-elll which preferably comprises a vertically arranged metal bar 6() very clearly shown in F ig. 5 and engaging a correspoinlingly arranged guide-way 62 formed in the runiur-gatecasing E2 below the said portion (12 of the runner-gate, and the cut-oil' 60 is normally in its lower and inoperative position below the runner-gate and is actuated. upwardly at the proper time into or against the top wall of the laterally extending portion (1.`- of the runner-gate to separate any molten metal within the said portion of the runnergate where the latter extends into the body of loam or sand (11 from any metal in the runner-gate where the latter is arranged externally of the said body of loam-sand. To facilitate its operation the eutoilis beveled-at its upper end, as at 63, and preferably the sloping surface 63 is so arranged that during the operation. of the cut-off the said sloping surface tends to shove back any metal within the runner-gate externally of the body of learn-sand (1.

The means for actuating the cut-oill 6() consists preferably of a vertically swinging .lever 64 which is fulerunied, as at 65, to the runner-gate-casing E" and has one arin thereof extending under the lower end ol' and supporting the cut-olf while the other arm of the lever is engaged on top 'by a downwardly shiftable rod 66 which extends to the upper end of the pit 35 where it is manipulated as required to actuate the cut-ofi` upwardly.`

To space apart the receptacle ll and the cope C (see Figs. l, 6 and 7) vertically arranged tubes 7 (l embrace the rods {1/ and rest at their lower ends upon the arms ll of the receptacle H, which tubes are screw-tlneaded externally at their upper ends, and correspondingly internally screw-threaded sleeves 72 (see Fig. l) are screwed onto the upper ends of the tubes and engage the under side of the flange K of the lower cope-easing-see- 'tion K. Obviousl f the tubes 7() and engaging sleeves 72 constitute adjustable spacing means between the cope and receptacle Il and the said tubes act to depress the said receptacle during any lowering of the cope while the cope engages the upper ends of the sleeves, but it will also be observed that the cope may be lowered independently of' the remaining portions of the niold by properly manipulating the nuts O and 5() and sleeves 72 if the receptacle is supported independently of the cope, as, 'for instance, when it is detachably secured to the drag-casing by the bolts 53 and nuts 54. V

Briefly described the operation of my iniproved mold is as follows :By nianipulatin the nuts O and 50 and sleeves 72 the cope is` rwithin the cope-chamber 13 until .the level of the vmolten metal within the cope-,chamber has risen as far as the upper end of the. lower cope-part. The upper cope-part is kept off the mold preparatory tothe pouring of the mold so that the operators or attendants can skim off any dirt or dross appearing at the level of the molten metal when the said level rises to the upperl endof. the llower cope-part.

When the moltenmetal has hadall the. dross and dirt skimmed therefrom and the fed metal has settled down from the lower copepart to nearly fully feed the V'chill the, upper cope-part is placed and fastened in position upon the lower cope-part, and the `copechamber (including the feeding head 7L) is then filled tothe upper end of the upper mold-part by pouring molten metal into the feeding head from above after which by the use of a feedin rod'worked up` and, down round the wabb e`forming portion and inner end or main portion, of the roll-neck to be Y is to be exerted downwardly upon the uJIpper i ormv cast within the cope a good union of the metal below the wabble andthe metal introduced from above is` effected. The cut-off '60 is of course actuated intoits upper and operative position as soonl as lthe mold is poured. The molten metal introduced into the mold is permitted to stand until it shall have formed a suitable shell or crust in the chill whereupon the cope and the receptacle' crust orvshell andnext over the sloping seats.

of the chill-rings, in contact with the said seats until after the contraction has ceased, or until after the maximum descent of the 4roll-body-formin portion of'thecasting on thev sloping seatormingsurfaces of the sectional chill-rings r, upon which surfaces the casting is wholly supported after the Inaxi-V mum contraction of the casting. If pressure end of the roll-body-forming metal to a good union between the upper neck and the roll-body, or for other reasons, ,the cope d `is lowered A independently of the remainingportions of the mold by a pro er manipulation of the nuts O and 5() and s eeves 72 upon holding the receptacle H temporarily station- Y ary in any suitable manner. ripheral crust or shell of the roll-body has ,formed in the chill the lever-T is rendered `free to .be actuated by the weight w upon loosening the-nut 42 on the bolt 40 whereupon the action of the said weight actuates the said leverI inthe direction required to shiftthefmember P into the chill as far as the horizontal contraction of the roll-body-formingportion of the casting will permit, and the cooperation of theV scale v37 and pointer t measures and indicatesthe distance which lthe said member P` has moved into the chill and lconsequently the amount of horizontal contraction of the casting.

The descent of he cope is, as already stated, indicated by the additional distance which the rod x projects above the cope upon the lowering of the cope in the operation of the mold.

In removing the casting from the mold the copeiand the nuts O, m and 50 and sleeves .72 are of course first removed whereupon the top chill-ring can readily be removed and then the sectional chill-rings and solidchillrings are readily removed one at a time and in order'.

What l claim is 1. In a mold for casting a chilled roll, a vertically arranged annular chill comprisi-ng solid rings which are arranged in line vertically and provided each at its lower end and internally with a recess extending circumferentially of the chill, which rings are also each provided internally next above the said recesswith a downwardly and inwardly sloping seat-forming surface extending circumferentially of 'the chill, and a ring occupying the said recess and divided lvertically into sections and provided internally with a downwardly and inwardly sloping seat-forming surface arranged flush at its upper end with the first-` 4mentioned sloping surface.

2. In a roll-casting mold, a vertically arranged annular chill comprising solid ringsA tion of the said sectional ring having a de' When they pe- Y vtica pending flange whose inner side overlaps an upright laterally and outwardly facing shoulder formed on the next lower solid ring.

3. In a roll-casting mold, a vertically arranged annular chill comprising solid rings arranged in line vertically and provided each internally with a recess extending circumferentially of the chill, which rings are also each provided internally next above the said recess with a downwardly and inwardly sloping seat-forming surface extending circumferentially of the chill, and a ring occupying the said recess and divided vertically into sections and provided internallywith a downwardly and inwardly sloping seat-forming surface arranged fiush at its upper end with the first-mentioned sloping surface, with the upper of adjacent sectional rings overhanging the seat-forming sloping surface of the next lower solid ring.

4. In a roll-casting mold, a vertically arranged annular chill comprising solid rings arranged in line vertically and provided each internally with a recess extending circumferentially of the chill, which rings are also each provided internally and above the said recess with a downwardly and inwardly sloping seat-forming surface extending circumferentially of the chill, and a ring occupying the said recess and divided vertically into sections, said sectional ring being provided internally with a downwardly and inwardly sloping seat-forming surface extending circumferentially of the said ring and smallerl diametrieally than the firstmentioned sloping surface, and the sections of the sectional ring embracing the extreme upper end of the next lower solid ring.

5. In a roll-casting mold, a vertically arranged annular chill comprising solid rings arranged in line vertically and provided each internally with a recess extending circumferentially of the chill, which rings are also each provided internally and above the said recess with a downwardly and inwardly sloping seat-forming surface extending circumferentially of the chill, said recess having its surrounding wall sloping downwardly and outwardly, and a ring occupying the said recess and divided verly into sections and provided internally with a downwardly and inwardly sloping seat-forming surface arranged ush at its upper end with the first-mentioned sloping surface, said last-mentioned ring conforming to the surrounding wall of the said recess, and theI upper of adjacent sectional rings resting upon the next lower solid ring.

6. In a roll-casting mold, a vertically arranged annular chill comprising superimposed solid rings provided each internally with a recess extending circumferentially of the chill, which rings are also each provided internally and above the said recess with a downwardly and inwardly sloping seat-forining surface extending circumferentially of the chill, and a ring occupying the said recess and divided vertically into sections and provided internally with a downwardly and inwardly sloping seat-forming surface arranged flush at its upper end with the first-1nentioned sloping surface, and the lower of adjacent solid rings being provided externally with an upwardly facing shoulder extending circumferentially of the chill and forming a bearing for the upper of the said adjacent rings.

7. In a roll-casting mold, a vertically arranged chill having a circular chamber extending from end to end of the chill and provided internally with downwardly and inwardly sloping seats extending circumferentially of the chill and arranged at different elevations respectively, with the lower portions of the said seats formed by suitably supported sectional rings, and with the upper portions of the said seats formed. by suitably supported solid rings.

8. In a roll-casting mold, a vertically arranged chill having a circular chamber extending from end to end of the chill and provided internally with downwardlj and inwardly sloping seats extending circumferentially of the chill and arranged at different elevations respectively, and each seat being formed by and internally of a plurality of suitably supported rings extending cicumferentially of the chill.

9. In a roll-casting mold, a verti :ally a1'- ranged chill having a circular chamber extending froin end to end of the chill and formed by solid rings and rings divided vertically into sections alternating with the solid rings, with the sections of each sectional ring embracing the adjacent portion of an adjacent solid ring.

10. In a roll-casting mold, a vertically arranged chill having a circular chamber extending from end to end of the chill and provided internally with downuuirdly and i11- wardly sloping seats extending circumferentially of the chill and arranged at different elevations respectively and the lower portion of each seat being formed by a suitably supported sectional ring, and the upper portion of the said seat being formed by a suitably supported solid ring which embraces the said sectional ring.

11. In a roll-casting mold, a vertically arranged chill having a circular chamber extending from end to end of the chill and provided internally with downwardly and inwardly sloping seats extending circumferentially of the chill and arranged at different elevations respectively, with the lower portions of the said seats formed by suitably supported sectional rings, with the upper portions of the said seats formed by suitably supported solid rings provided in their upper ends with recesses forming outlets for air and gases, which recesses are spaced circumferenf tially of the chill andextend from the exteriorof the chillinto close'proximity to but .arranged wholly exteriorly of the aforesaid 5 chamber, and the joint between each sectional ring and the recessed upper end of the next lowerv solid ring being loose enough adjacent the inner endsof the recesses in the said end of the said solid ring to permit the 10 escape of air and gases to the said recessesfrom the aforesaid chamber.

12. In a roll-casting mold, a vertically arranged chill having a circular chamber extending from end to end of the chill and pro- 15 vided internally with downwardly and ini 20 ported sectional rings, with the upper portions of the said seats formed by suitably supported solid rings, and with each sectional ring embraced by a solid ring.

' 13. In a roll-casting'` mold, a vertically arranged chill having a circular 'ch-amber extending from end to end of the chill and pro vided internally with downwardly and inwardly sloping seats extending circumferentially of the chill and arranged at different elevations respectively, with the lower portions of the said seats formed by sectional rings, with the upper portions of the said seats formed by solid rings, with the'upper of adjacent sectional rings resting on the next lower solid ring, and with each solid ring resting on a sectional ring.

14. In a roll-casting mold, a vertically arranged chill having a circular chamber extending from end to end of the chill and provided internally with downwardly and inwardly sloping seats extending circumferentially of the chill and arranged at different elevations respectively, with the lower portions of the said seats formed by sectional rings, with the up er portions of the said seats formed by so id rings, with each sectional ring embraced by a solid ring, with the upper of adjacent sectional rings restin on the next lower solid ring and overlappe on 0 top by the solid ring embracing it, and with the upper of adjacent solid rings having bearing on the next lower solid ring.

15. In a roll-casting mold, a vertically arranged chill having acircular chamber extending from end to end of the chill and provided internally with downwardly and inwardly sloping seats yextending circumferentially of the chill and arranged-at different elevations respectively, with the lower portions of the said seats formed by suitably supported sectional rings, with the upper portions of the said seats formed by suitablyv supported solid rings, and with the relative dimensions of the seat-'forming surfaces of 65. the solid rings and the seat-forming surfaces of the sectional rings being such that the casting produced in the mold shall after wholly cooling or contracting rest entirely u on the seat-forming surfaces of the sectiona rings.

16. In a roll-casting mold, an upright chill provided with a chamber extending Jfrom end to end of the chill; a lower mold-part or drag having a cavity which is provided with an inlet and communicates with the chill-chamber at the lower end of the chill an up er mold-part or cope provided with a cham er which communicates with the chill-chamber at the upper end of the chill, said copebeing movable vertically independently of the chill, and a member arranged at one side of the cope and instrumental in measuring the descent of the cope during the lowering of the cope, said descent-measuring member being l supported lat the upper end of the chill independently of the cope.

17. In a roll-castmg mold, a suitably supported upright chill provided with a chamber extending from end to end of the chill; a lower mold-part or drag having a cavity which is provided with an inlet and communicates with the chill-chamber at the lower end of the chill; an upper mold-part or cope provided with a chamber which communicates with the chill-chamber at the up er end of the chill, said cope being su porte as required to render it capable of being lowered and comprising a casing which is provided at its upper end with a laterally and outwardly projecting member, and an upright 'rod extending loosely through the said projectn member and resting upon the upper end o the chill.

18. In a roll-casting mold, a suitably sup-I i ported lower mold-part or drag provided with a cavity having an inlet; an upright chill having a circular chamber extending from end to end of the chill and communicating at its lower end with the drag-cavity; a cope having a chamber which extends from end to end of the cope and communicates with the cln'll-chamber at the upper end of the chill, said cope comprising an upper copepart and a lower cope-part, with the latter adapted to be lowered within the chill and provided externally and a suitable distance above the chill with a laterally and out wardly projecting member, with the upper cope-part resting upon and removably se- -cured to the lower cope-gart and provided at its upper end with a aterally and outwardly projecting member means support.- ing the cope and arranged to belowered to accommodate a descent o1c the cope, and an upright member resting upon the upper end of the chill and extending loosely-through the aforesaid `projecting members ofthe cope.

19. A roll-casting mold comprising a suitably supported u right'chill, a suitably supported upper mo d-part or cope arranged at the upper end of the chill; a lower mold-part or drag having a suitably supported depressible portion which is -provided with a cavity communicating with the chill, said drag also comprising the following:-a stationary casing extending eircuinferentially of the said depressible portion of the drag; a runner` gate which extends through the casing and communicates with the said cavity, the cavity-connecting portion of the ruimergate being adapted to lower with the aforesaid depressible portion of the drag, and a cut-off for interrupting continuity in the runner-gate at the point required to avoid obstruction to the descent of the aforesaid depressible portion of the drag by metal within the stationary portion of the runner-gate, said cut-off being normally arranged below the last-mentioned portion of the runnergate and movable upwardly into position obstructing the runner-gate.

20. A roll-castiiig mold comprising an upright chill; an upper mold-part or cope arranged at the upper end of the chill; a lower 'mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the followingz-a stationary casing surrounding the said depressible portion of the drag; a ruiiner-gate which extends through the casing and communicates with the said cavity7 the cavityconnecting portion of the runner-gate being adapted to lower with the aforesaid depressible portion of the drag; a cut-off for interrupting continuity in the runner-gate at the point required to avoid obstruction to the descent of the aforesaid depressible portion of the .drag by metal within the stationary portion of the runner-gate, said cut-olf being normally arranged below the last-iiientioned portion of the runner-gate and movable upwardly into position obstructing the runnergate, and a lever supporting and arranged to actuate the cut-off.

2l; In a roll-casting mold, a suitably supported lower mold-part or drag provided with a cavity having an inlet; a vertically arranged chill having a circular chamber extending from end to end of the chill and communicating at its lower end with the 'drag-cavity; a cope having a chamber which communicates with the chill-chamber at the upper end of the chill, said cope comprising a casing which is provided externally and a suitable distance above the chill with a laterally and outwardly projecting annular iiange upright rods spaced circumferentially of the chill and supported independently of the cope and extending through the said flange and screw-threaded where they extend through the flange; nuts mounted on the said screw-threaded portions of the rods and extending through and turnable within the flange, which nuts are provided at the lower ends and externally with upwardly 'facing annular shoulders arranged below the l 22. In a roll-casting mold, a suitably supported lower mold-part or drag provided with a cavity having an inlet and comprising a stationary casing; a vertically arranged chill having a circular chamber extending l'iom end to end of the chill and communieating at its lower end with the drag-cavity7 which chill is composed of superimposed rings; a suitably supported cope having a chamber which communicates with the chill-chamber at the upper end of the chill; vertically arranged screw-thieaded rods spaced circumfeientially of the chill and connected to the drag-casiiig and extending through the top chill-ring nuts mounted on the said rods and preventing upward displacement of the said top chill-ring, and nuts mounted on the rods above the first-mentioned nuts and supporting the cope.

23. ln aroll-casting mold, a suitably snpported lower mold-part or drag provided. with a cavity having an inlet; a vertically arranged chill having a circular chamber extending from end to end of the chill and coiiiinunicating at its lower end with the drag-cavity, which chill is composed of superimposed rings, with-the uppermost or top ring provided externally with laterally and ontwardly projecting lugs spaced circumferentially of the chill; a cope having a chamber which communicates with the chill-chamber at the upper end of the chill; vertically arranged rods spaced circuinfereiitially of the chill and extending through the aforesaid lugs and screw-threaded above the said lugs; nuts mounted on the said screw-threaded portions of the rods and resting on the said lugs; compressible members interposed between the said nuts and the lugs, and nuts mounted on the rods above the first-mentioned nuts and supporting the cope. 24. In a roll-casting mold, a suitably supported lower mold-part or drag provided with a cavity having an inlet, said drag comprising a casing provided at its upper end with. laterally and outwardly projecting lugs spaced circumferentially of the drag; a vertically arranged chill having a circular chamber extending from end to end of the chill and eemmunicating at its lower end with the dragcavity, which chill is composed of superimposed rings, with the uppermost or top ring provided externally with laterally and ontwardly projecting lugs spaced circumferentially of the chill; a suitably supported cope having a chamber which communicates with the chill-chamber at the upper end ol` the chill; vertically arranged rods spaced circumferentially of the chill and extending through the lugs in the drag-casiiig and through the lugs in the top chill-ring, said iods being screw-threaded at their lower ends and screwthreaded'above the lugs of the top chill-ring; nuts mounted on the said rods under the lugs of the drag-casing; nuts mounted on the said rods and resting on the lugs of the top chillring, and compressible members interposedy between the last-mentioned lugs and the last-mentioned nuts.

25. In a roll-casting mold, the combination, with a stationary vertically arranged chill; an upper mold-part or cope arranged and adapted to be lowered within the chill, and a lower mold-part or drag comprising a casing and having a cavity which communicates with the chill; a runner-gate which has an upper upright portion and a lower portion which extends laterally from the lower end of the upright portion through the drag-casing and communicates at its discharging end with the aforesaid cavity; a casing surrounding thek outer end'of the lower portion of the runner-gate and formed on the drag-casing under the upright portion of the runner; a casing surrounding the upright portion of the runner-gate and rigid with the casing of the laterally extending portion of the runnergate, and the first-mentioned runner-gatecasing comprising an upright removable section arranged opposite and facing the outer end of the said laterally extending lower portion of the runner-gate.

26. A roll-casting mold comprising a suitably supported upright chill; a suitably supported upper mo -part or co e arranged at the upper end of the chill, an a lower moldpart or drag having a suitably supported depressible portion which is providedwith a cavity communicating with the chill, said drag also comprising the following z-a stationary casing surrounding the said depressible portion of the drag and having a'perforated bottom which is arranged a suitable distance below the drag-cavity; a runnergate which extends through the casing and communicates with the said cavity, the cavity-connecting ortion of the runner-gate being adapted to ower with the aforesaid depressible portion of the drag; a cut-off for interrupting continuity in the runner-gate at the point required to avoid obstruction to the descent of the aforesaid depressible portion of the drag by metal within the stationary portion of the runner-gate; a partition-forming head arranged to bear the aforesaid depressible portion of `the drag and adapted to be lowered; a body of loose fluent material interposed between the head or partition and aforesaid casing-bottom, and a receptacle supported as required to render it capable of being lowered, said rece tacle being arranged to receive material ischarged downwardly through the aforesaid perforatd bottom during the descent of the receptac e.

, 27. A roll-casting mold comprising a suitably supported u right chill; a suitably supported upper mo d-part or cope, and a lower mold-part or drag having a suitably supported depressible ortion which is provided with a cavity whic communicates with the chill, said drag also comprising the followvingz-a stationary casing surrounding the said depressible portion of the drag and having a perforated bottom which is arranged a suitable distance ,below the drag-cavity; a partition-forming head arranged to bear the aforesaid depressible ortion of the drag and adapted to be lowere a body of loose fluent material interposed between the head or partition and the aforesaid casing-bottom, and a receptacle supported as required to render it capable of being lowered and arranged to receive material discharged downwardly through t-he aforesaid perforated bottom during the descent of the receptacle.

28. A roll-casting mold comprising a suitably supported upright chill; a suitably supported upper mo d-part or cope, and a lower mold-part or drag having a suitably supported depressible ortion which is provided with a cavity whic `communicates with the chill, said drag also comprising the following a stationary casing surrounding the said depressible portion of the drag and having a erforated bottom which is arranged a suitab e distance below the drag-cavity a partition-forming head arranged to bear the aforesaid depressibledportion of the drag and adapted to be lowere a body of loose fluent material interposed between the head or partition and the aforesaid casing-bottom; a receptacle supported as required to render it capable o f being lowered, said receptacle being arranged to receive material dis-charged downwardly through the aforesaid erforated bottom, and means for detachab y fastening the said receptacle to the aforesaid casing.

29. A roll -casting mold comprising a suitably supported upright chill; a suitably supported upper mold-part or cope, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following z-a stationary casing surrounding the said depressible portion of the drag and having a perforated bottom which is arranged a suitable distance below the drag-cavity and provided at its upper side with an annular recess having upwardly diverging walls and outlets at the lower ends of the said walls a partition-forming vhead arranged to bear the aforesaid depressible portion of the drag and adapted to be lowered; a body of loose fluent material interposed between the head or partition and the .aforesaid casing-bottom, and a receptacle supported as required to render it'capable of being lowered, said receptacle being arranged to receive material discharged downwardly through the aforesaid outlets during the descent of the receptacle.

30. A rollcasting mold comprising a suitably supported upright chill; a suitably supported upper mold-part or cope, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following :a stationary casing surrounding the said depressible portion of the drag and having a perforated bottom which is arranged a suitable distance below the drag-cavity; a partition-forming head arranged to bear the aforesaid depressible portion of the drag and adapted to be lowered; a body of loose fiuent material interposed between the head or partition and the aforesaid casing-bottom; a receptacle supported as required to render it capable of being lowered, said receptacle being arranged to receive material discharged downwardly through the aforesaid perforated bottom during the descent of the receptacle, and suitably applied bolts and nuts detachably fastening the said receptacle to the aforesaid casing.

31. A roll casting mold comprising a suitably supported upright chill; a suitably supported upper mold-part or cope, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following z-a stationary casing surrounding the said depressible portion of the drag and having a perforated bottom which is arranged a suitable distance below the drag-cavity; a partition-forming head arranged to bear the aforesaid depressible portion of the drag and adapted to be lowered; a body of loose iuent material interposed between the head or partition and the aforesaid casing-bottom, and a receptacle supported as required to render it capable of being lowered, said receptacle y slidably embracing the said bottom and arranged to receive material discharged downwardly through the bottoni during the descent of the receptacle.

32. A roll -casting mold comprising a suitably supported vertically arranged chill; a suitably supported upper mold-part or cope, and a lower mold-part or drag having two superimposed depressible bodies provided with a cavity which is partially formed in each of the said depressible bodies and communicates with the chill, said drag also comprising the following I--a stationary casing surrounding the said depressible bodies and having a perforated bottom which is arranged a suitable distance below the dragcavity; means for detachably fastening the upper of the said superimposed depressible bodies to the casing; a runner-gate communicating with the aforesaid cavity, the

cavity-connecting portion of the runnergate being adapted to lower with the aforesaid depressible bodies; loose fluent material interposed between the lower of the said superimposed depressible bodies and aforesaid casing-bottom, and a receptacle supported as required to render it capable of being lowered, said receptacle being arranged to receive material discharged downwardly through the aforesaid perforated bottom (hiring the descent of the receptacle.

33. A roll-casting mold comprising a suitably supported vertically arranged chill; a suitably supported upper mold-part or cope arranged at the upper end of the chill, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following a stationary casing surrounding the said depressible portion of the drag and having 1. perforated bottom which is arranged a suitable distance below the drag-cavity; a runner-gate communicating with the said cavity, the cavity-connecting portion of the runner-gate being adapted to lower with the aforesaid depressible portion of the drag; a body of loose fluent material interposed. between the said depressible portion of the drag and aforesaid casing-bottom, and a receptacle supported as required to render it capable of being lowered, said receptacle being arranged to receive material discharged downwardly through the aforesaid perforated bottom and occupied by loose Yfluent matorial between its bottoni and the said perforated bottom.

34. A roll-casting mold comprising a suitably supported vertically arranged. chill; a suitably supported upper mold-part or cope arranged at the upper end of the chill, and a lower mold-part or drag having two superimposed depressible bodies provided with a cavity which is partially formed in cach of the said depressible bodies and communicates with the chill, said drag also comprising the following z-a stationary casing surrounding the said depressible bodies; means for detachably fastening the upper of the said. superimposed depressible bodies to the drag-casing; a runner-gate communicating with the aforesaid cavity, the cavity-connecting portion of the runner-gate being adapted to lower with the aforesaid superimposed depressible bodies, and a head arranged under the lower of the said superimposed depressible bodies and supported as required to render it capable of being lowered.

35. A roll-casting mold comprising a suitably supported vertically arranged chill; a suitably supported upper mold-part or cope arranged at the upper end of the chill, and a lower mold-part or drag having two superimposed depressible bodies provided with a cavity which is partially formed in each of the following z-a drag-cavity which communicates with the chill and is formed by two superimposed bodies adapted to be lowered; a stationary casing surrounding the said superimposed depressible bodies; endwise withdrawable pins supported from the said casing and extending into the upper of the said superimpose'd depressible bodies, and a head arranged under the lower of the said superimposed depressible bodies andsupported as reqiired to render it capable of being lowere 36. A roll-casting mold comprising a suitably supported vertically arranged chill; a suitably supported upper mold part or cope, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following:-a stationary casing surrounding the said depressible portion of the drag and having a bottom which is arranged a suitable distance below the dragcavity, which bottom is provided withv two annular recesses arranged at the upper side and lower side respectively of the bottom and in communication with each other; a body of loose fluent material between the said bottom and the aforesaid depressible portion of the mold; a receptacle embracing the said bottom and supported as required to render the receptacle capable of being lowered, and loose fluent material occupying any space between the aforesaid casing-bottom and the bottom of the receptacle.

37 A roll-casting mold compri-sing a suitably supported vertically arranged chill; a suitably supported upper mold-part or cope arranged at the upper end of the chill, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following z--a stationary casing surrounding the said depressible portion of the drag and having a perforated bottom which is arranged a suitable distance below the drag-cavity, which bottom is provided with recesses arranged in line vertically and formed in the upper side and lower side respectively of the bottom and in communication with each other; a body of loose fluent material between the said bottom and the aforesaid depressible portion of the drag; a receptacle embracing the said bottom and supported as required to render the receptacle capable of being lowered, and a loose fluent material between the aforesaid casing-bottom and the bottom of the receptacle.

38. A roll-casting mold comprising a suitably supported vertically arranged chill; a

suitably sup orted upper mold-part or cope arranged an adapted to. be lowered within the chill, and a lower mold-part or drag having a suitably su ported depressible portion which is provide with a cavity communicating with the chill, said drag also comprising the following z-a stationary casing surrounding the said depressible ortionof the drag and having a perforated bottom which is arranged a suitable distance below the drag-cavity; a runner-gate which extends through the said casing and communicates with the cavity, the cavity-connecting portion of the runner-gatev being adapted Ato lower with the aforesaid depressible portion of the body; a body of loose fluent material between the said depressible portion ofthe drag and the aforesaid bottom, and a receptacle arranged to receive material discharged downwardly through the aforesaid perforated bottom during the descent of the receptacle and operatively connected with the co e.

E9. In a roll-casting mold comprising a suitably supported vertically arranged chill; a suitably supported u per mold-part or cope arranged and adapte to be lowered within the chill, and a lower mold-part or drag having a suitably su ported depressible portion which is provide with a cavity communicating with the chill, said drag also comprising the following :--a stationary casing surrounding the said depressible ortion of the drag and having a perforated ottom which is arranged a suitable distance below the drag-cavity; a runner-gate which extends to and communicates with the aforesaid cavity, the cavity-connecting portion of the runnergate being adapted to lower with the aforesaid depressible portion ofthe drag; loose fluent material between the said depressible portion of the drag and the aforesaid bottom; a receptacle having laterally and outwardly projecting arms spaced circumferentially of vthe drag, which receptacle is arranged to receive material discharged downwardly through the aforesaid perforated bottom during the descent of the receptacle; screwthreaded rods sus ended from the cope and extending throug the aforesaid arms, and nuts on the rods at the under sides of the arms.

40. A roll-casting mold comprisin a suitablyv supported upright chill; a suita ly supported upper'mold-part or cope arranged .and adapted to be lowered within the chill,

and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the followingz-a stationary casing which surrounds the said depressible portion of the drag and has a perforated bottom which is arranged a suitable distance below the dragcavity; loose fluent material between the said bottom and the aforesaid depressible portion of the drag; a receptacle having laterally and outwardly projecting portions and arranged to receive material discharged downwardly through the aforesaid perforated bottom during the descent of the receptacle vertically arranged tubes resting on the said projecting portions of the receptacle and screw threaded externally at their upper ends; correspondingly internally screw threaded sleeves mounted on the threaded upper ends of the tubes and overlapped on top by the cope, and rods extending through the said tubes and suspended from the cope, which rods are operatively connected with the aforesaid receptacle.

41. A roll-casting mold comprising a suitably supported upright chill; a suitably supported upper mold-part or cope arranged and adapted to be lowered within the chill, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicating with the chill, said drag also comprising the following a stationary casing surrounding the said depressible portion of the drag and having a perforated bottom which is arranged a suitable distance below the dragcavity; loose liuent material between the said bottomand the aforesaid depressible portion of the drag a receptacle having laterally and outwardly projecting portions and arranged to receive material discharged downwardly through the aforesaid perforated bottom during the descent of the receptacle; vertically arranged tubes resting on the said projecting portions of the receptacle; vertically adjustable members borne by the upper ends of the tubes overlapped on top by the cope/and rods extending through the said tubes and suspended from the cope, which rods are operatively connected with the aforesaid receptacle.

42. In a roll-casting vmold comprising a suitably supported upright chill; a suitab'ly supported upper mold part or cope arranged and adapted to be lowered within the chill, and a lower mold-part or drag hav ing a suitably supported depressible portion which is provided with a cavity connnunicating with the chill, said drag also comprising the following:-a stationary casing which surrounds the said depressible portion of the drag and has a perforated bottom which is arranged a suitable distance below the drag-cavity; loose Afluent material be` tween the said bottom and the aforesaid depressible portion of the drag; a rmzeptacle having laterally and outwardly projecting arms spaced eircumferentially of the receptacle, which receptacle is suspended from the cope and arranged to receive material discharged downwardly through the alpresaid perforated bottom during the descent of the receptacle, and a spacing device between each receptacle-arm and the cope.

43. A roll-casting mold comprising a suitably supported upright chill; a suitably supported upper mold-part or cope arranged and adapted to be lowered within the chill, and a lower mold-part or drag having a suitably supported depressible portion which is provided with a cavity communicatng with the chill7 said drag also comprising the following z-a stationary casing surroundin g the said depressible portion of the drag and having a perforated bottom arranged a suitable distance below the drag-cavity; loose luent material between the said bottom and the aforesaid depressible portion of the drag; a receptacle having laterally and. outwardly projecting arms spaced circumferentially of the receptacle, which receptacle is arranged to receive material discharged downwardly through the aforesaid perforated. bottom during the descent of the receptacle, and an adjustable spacing device between each receptacle-arm and the cope.

In testimony whereof, I sign the foregoing specification, in the presence of two with nesses.

RALPH ll. WEST.

lVitnesses:

C. H. DoREn, B. C. BROWN.