US1389722A - Mold for plural castings - Google Patents

Description

l. G. WEBB. -MQLD FOR PLURAL CASTINGS. APPUCATIOH man JAN. 5, 1920.

Patented Sept. 6, 921.

4 SHEEYS-SHEEI' 2 Rimani? j. G. WEBB. n MOLD FOR PLURAI. CASTINGS. APPLICATION FILED-IAN. 5. |920.

PatentedSept. 6, 1921.

4 SHEETS-SHEET 3.

mum/tor 1.. G. WEBB.

' MOLD FOR PLURAL CASTINGS. APPLICATION FILED me. 5, 1920.

Pante Sepia 5, 192i..

4 SHEETS-SHEET 4.

PATENT OFFICE.

JOHN G. WBB, OF RICHMOND, VIRGENIA.

Mom) Fort PLURAL cAsTNes.

Specification of Letters Patent.

Patented Sept. 6, 1921.

Application led January 5, 1920. Serial No. 349,386.

To all ooo/loin1 t may concern:

Be it known that l, JOHN G. WEBB, a citizen of the United States, residing 'at Richmond, in the county ot'Hem-ico, State of Virginia, have invented certain new and useful Improvements in Molds for Plural Castings; and l dohereby declare the folvlowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

breaking them down into lighter billets, eX-

cept in case of small ingots cast trom crucibles7 in which case the ingots are castin vertical position.y one ingot at a time, amethod that is too slow in the handling of lar( e quantities ot molten metal.

everal methods ot group pouring have been employed, but those with which I amA 'familiar are unsatisfactory for the manufacture of very small steel ingots because of excessive quantities oi' discard metal in the long runners employed, because of ei;- pense due 'to the complicity and number ot runnerbricks, iron bases or retaining flasksror the molds and similar adjuncts and because of the labor and handiwork involved, all increasing the ultimate cost of the product. In practising the present invention,

the various adj uncts that determine the ex- Dense of firstA cost. are reatl Y reduced as is also the expense of manipulation. The runner bricks areeomparatively few, the runners are short and can be shaped to consti- 'tute an additionalshape or ingot and no re- .tainer flasks are necessary. rJhel molds are simply set up on a plane surface, as hereinatter explained. y

The use et molds such as hitherto employed, has necessitated an expenditure of 1time and labor in the stripping and resetting that is largely obviated by the novelty of mold and the method of handlinghereinatt-erf explained.

In the drawings:

Figure l. is a perspective view showing what may be termed an H form of mold employed by meJ looking at its closed end. y

Fig. 2 is an elevation of the open end of the mold shown in Fig. l. Fig. 3 is a perspective view showing a plurality of molds assembled at each side of a runner brick, with the combined liiter and carrier bars associated with them.

Fig. 4 is a section on line 4--4 of Fig. 3.

Fig. 5 is a section on line 5-5 of Fig. 3.

Fig. 6 is a longitudinal horizontal section through the runner shown in Fig. 3.

Fig. 7 is an elevation showing the group of molds undergoing the process of stripping of the ingots from them.

Fig. 8"' is a View similar to Fig. 3, showingvthe molds laid up in 'a plurality of tiers.

1g 9 is a view similar to Fig. l, showing what may be termed a U form of mold.

Fig. l() is a View similar to Fig. 5, illustrating the manner of assembling molds Shown in Fig. 9.

Fig. ll is a view similar' to Fig. 3 and showing a plurality of tiers ot molds disposed to radiate from the runner.

Fig. 'l2 is a section on line 12-12 of Fig. 11 illustrating the use of the H type ot mold.

Fig. 13 is a perspective view showing a vertical arrangement of molds, the runner and the connected portions of the molds being in sectional perspective. y

Fig. 14 is an elevation illustrating a different manner otdischarging the ingots.

Referring rst to Figs. Vl to 5 inclusive oli' the drawings there is employed a runner brick 2O having a. central longitudinal passage 21 from which lead at regularv intervals the laterally directed' gates 22, the passage 21 terminating short of the ends of the runner brick. Midway of the ends of the brick is a pouring gate 23 formed through its upper wall and with which is engaged the usual sink head 24. y

In connection with the runner brick 20 there is employed at each side a series of molds 25, which in the arrangement shown -in Fig. 3, consist each of a rectangular body having in two of its opposite longitudinal faces the longitudinal bha-nnels 27 that extend through one end of the mold and terminate short of the opposite end. Thus the mold, except at the portion beyond the molds.

trated kin Fig. 5, is shown but without the supports.

In Figs-11 and 1.2 of the drawings is shown an embodimentr of the invention in which there is employed a contral, hollow runner brick 40 that is closed at its lower end Ythrough the medium of a plate e upon which itrests, this core or brick lbeing crosssectionaliy rectangular and having gates 41 in its side walls. The core or .brick being rectangular in cross-section, the gates are thus disposed in a plurality of horizontal series, each including four gates. The series of gates are equally spaced vertically'of the brick.

In connection with the brick 40 there is employed a plurality of vertical series. of molds 42 which are illustrated of the H type and which series correspondin number to the sides of the bric-k. The molds 42 are laid up with their webs horizontal andthe open ends of their longitudinal channels 43 in thedirection of the core brick, which is vertical, as illustrated. The molds being disposed in vertical series, one upon another, the upper-channel of each mold, eX- cepting the uppermost one, coperates with the lower channel of the mold next above, to constitute a Imold form, with each of which communicates a gate of the runner brick. brick is arranged a sink head 44.

Each mold is provided at its closed end with an eye 45 which opens in the direction of theside opening of the mold channels so that when the molds are assembled as illustrated, these eyes will register vertically to' receive a carrying and suspending bar 46. After the cast has been made, at which time the poured metal passes from the runner brick to the forms ofthe several molds, cach series of molds is picked up by means of a tackle connected with the bar 46 and is hung from the bar by placing it upon supports in the same manner previously d'escribed. The molds are then separated sucports the inner end portions of the series ot" molds, there being provided an additional .Upon the upper end of the runner supporting plate 'f for the outer end portion of each series of molds. These platese and f are carried by a supporting cross-shaped frame g that holds the molds above the level of the casting lioor.

In Fig. 13 ofthe drawings, there is shown an arrangement of molds 50, of the H type that are disposed vertical with their open ends upwardly and having supported thereon a runnerrbrick 51 from the central longitudinal channel 52 of which lead gates 53, each to a pair of cooperating longitudinal channels 54 of a pair of molds.Y The pouring gate 55 is throughthe opposite wall of I the brick from the gates 53 and there is associated with it a sink head 56. -At the lower or closed ends of the molds 50 are the eyes 57 that register with each other to receive a carrying and supporting bar 58, the molds themselves being djisposed loetween suitable sills 59 to support them with the eyes out of Contact with the surface u on which the varrangement is erected. The pouring operation is of course apparent while the manner of stripping the ingots from the molds is the same as that previously described. y

V It will of course be understood that either the H type or the U type of mold may be employed in each of the various arrangements illustrated while the runner brick in each in stahce forms also a mold to produce a usable shape,

It will also be understood that a clamp may be employed for holding together the molds of the series in eachinstance.

In Fig'. 14 of the drawings-there is illustrated another equipment for discharging the'ingots from the molds. In this equipment, instead of passing a4 bar such as 32 in F ig. 7, through the eyes 3l, there is employed a spreader bar 60 to which is connected the lifting chains 61 and from which'.

depend at regular intervals, the hanger chains 62 having hooks 63 at their,` lower ends that engage the eyes 3l, respectively. The spacing of the hanger chains 62 is slightly greater than the spacing of the eyes 31 when the molds are'in ingot-receiving positions. Thus, when the bar 60 is lifted,l the individual molds are suspended from it through the medium of the chains 62 and they swing apart by gravity, this separation of the molds permitting the discharge of the ingots 63', as will be understood. In Fig. 14 all of the ingots excepting one have dropped from their molds. It will be, of course, understood that after th'e discharge of the ingots by this method, the molds may be returned to the mold licor and again set up with whatever specific arrangement is desired.

What is claimed is:

1.v A composite mold comprising a runner brick having a plurality of outlet gates, and

e plurali@r 'o' mold members having each a plurality oliililre mold faces and associated with 'eachgate and roviding a mold form arranged to receive rom that gate, the association ot mold members at each gate inclurling a like mold lace of a mold member of another association.

2. A composite mold comprising a runner brick having a plurality of outlet gates and a plurality of like, reversible mold members having each a plurality of mold faces, the mold members being reversible for association ot either ol' its mold faces Witheither of the mold faces of another' member, a plurality of mold members being associated with each gate in position to provide a mold lorm in receptive relation to that gate, the association of'mold members at each gate including a mold lace of a mold member of another association.

S. A composite mold comprising a runner brick having a plurality o outlet gates and a plurality ol' like mold members having each a plurality of like separated mold facesand associated with each gate 1n position'to provide a mold 'form in receptive relation to that gate, the association oli' mold members each gate including a like mold face ctt a mold member oj another association.'

4. l composite mold comprising a p'luf` mold form associated witheach gate of each ralit-y et superimposed runner bricks having' each a plurality' of outlet gates and a plurality ot superimposed series of mold members, the members or" each series havingl each a plurality ol mold faces and associated ith each gate of the corresponding runner brick and providing a mold Yform arranged toreceive from that gate, the association of mold members atl each gate including' a mold lace olf a mold member of another association, and means common to all of the runner bricks for feeding metal to them.

. The combination. with a separable series of plurally cooperative mold members, of a carrier member with which they are con-` nested for 4smxeessive separationto discharge, their casts While connection with the carriermember is maintained.

6. The combination. with a separable series of mold members constructed and arranged to coperate plurally to constitute separate mold forms, each mold form including a mold member of the adjacent form, of a carrier bar with which the mold members are slide-bly connected for separation o the mold members oli each cooperative plurality with a simultaneous assemblv of a mold member with a mold member he previously separated plurality to constitute runner brick having a vertical series of laterally directed gates, a vertical series .of runner bricks communicating at their ends with corresponding gates of the vertical brick and having each a horizontal series of gates and a horizontal runner brick, 'each of said mold forms comprising a plurality of-like mold members each with a lurality of like, sepa; rated, mold faces and) each mold Vform in-l cluding a mold face of a, .member of an acljacent mold form.

In testimony whereof, I aix my signature, in the presence of tW`0 Witnesses. JOHN G. WEBB.. 4Witnesses MARY E. WEBB, MARY L. WEBB:

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