US2204498A - Casting apparatus - Google Patents

Description

June 11, 1940. A. HQJUNG CASTING APPARATUS Filed July 21, 1938 Patented June 11, 1940 UNITED STATES CASTING APPARATUS Albert II. Jung, Flushing, N. Y., assignor to United American Metals Corporation, Brooklyn, N. Y., a corporation of New York Application Julyzl, 1938, Serial No. 220,534

3Claims.

-This invention relates to casting apparatus and more particularly to aningot mold of such shape and characteristics as to facilitate the casting of ingots therein, the removal of the in- 5 gots therefrom, and to afford protection to the molds when stacked.

Prior to my invention molds have been designed which were adapted to cast slotted-cared ingots of a type suitable for use with an auto- 10 matic feeder, but such molds have been conventional in structure, being simply negatives of theingot to be cast or molds with but slightmodification from the negativeof the ingot. Such prior molds, while they have been used to effect 16 the casting of desired ingots, have been relatively awkward to handle and workwith. and when highly designed, they have been relatively delicate and great care must be exercised in their arrangement and storage. I

20 It is an object of my invention to provide an ingot mold of characteristics which facilitate the casting of ingots therein.

It isa further object of my inventionto provide an ingot mold of characteristics which fal5 cilitate the casting of ingots therein and further permit of particular stacking in a manner to prevent injury.

Other objects and the nature and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawing, wherein:

Fig. 1 is a yiewin perspective of a. tiltable water cooled double inold in accordance with my invention;

86 Fig. 2 is a fragmentary top plan view of the embodiment illustrated in Fig. 1; I

Fig. 3 is a fragmentary sectional view of the embodiment illustrated in Fig. 1; and,

Fig. 4 is a view similar to Fig. 3 of a modified 49 form in accordance with my invention.

Referring to Figs. 1, 2 and 3, a mold l may comprise a pair of similar sections II and I! each having cavities comprising relatively deep body portions I3 and relatively shallow end por- 45 tions ll wherein are situated cores l5 and webs IS. The webs l6 may comprise a lower relatively thick portion l1 and an upper relatively thin portion Hi. The cores may have their upper surfaces formed with sloped portions 19 as il- 50 lustrated. At the outer side of each mold section, notches 20 may be formed in the side walls of the main body portion 13. The walls of the mold it are hollow and may comprise a chamber 2| through which cooling water is adapted to be 5 passed to reduce the time of solidification of the ingot. Water 'may enter the chamber. 2| through the conduit 22 which may also act as a stub shaft when supported in a suitable bearing, not shown, to permit the mold H) to be rocked or tilted after the solidification. of the ingot and it is desired 5 to remove the cast ingots. The cooling water havingjpassed completely around the inner wall 23 of the mold may leave the mold lllthrough a conduit, not shown, at the opposite 'end thereof.

The outer walls 24 at the ends of the lower side of the mold l0 may be cupped to accommodate the cores I 5 when the molds are'stacked. one above the other, for storage or for any other purpose such as for shipment, for example. The cores l5 extend above the upper portion 'of the side walls 25 of the mold l0, whereas the upper portions l8 of the webs l6 extend somewhat be-' low the upper portion of the side walls 25 of the mold It. The notches extend slightly below the top of the upper portions I! of the go webs l6. I '1 a With this arrangement after the molten metal has been cast into the mold Ill and the cooling .water between the walls 23 and 24 of the mold III has served to solidify the molten metal, the mold l0 may be tilted to facilitate the removal of the cast ingots. When the mold I II has been tilted to such an extent that the ingots have moved to a position in spaced relation to the bottom of the molds II and I2, the ends of the ingots will rise up, to some extent, on the high cores l5 permitting the operator to grasp the slots formed in the ends of the ingots by the ,web

16, for the webs are not as high as the cores,

see Fig. 3. When the ingots are of such a size,

say from thirty to sixty inches in length,- the operator may grasp the slotted end portions of the ingots with gloved hands or some special tool or tools and easily remove the same for stacking or other arrangement. Inpractice, the 40 angle of tipping is soon learned which will cause separationof the ingots from the-mold to an extent which will readily permit the hand or fingers of the operator to grip the exposed slotted end portions of the mold directly above the web portions l6 and facilitate the handling of the ingots. Further, the ingenius relation of the slot to the core and web will insure a true slotted ingot which is not finned over at the slot and yet permit the operation described.

' Slotted-eared ingots cast in the mold illustrated in Figs. 1, 2 and 3, in accordance with my invention, lend themselves readily for mounting on automatic ingot feeders such as the "Margac feeder which may comprise an endless chain having secured thereto aseries of hooks on each of which one end of each ingot is to be threaded. As the endless chain is placed in motion, one ingot at a time is fed into the molten metal bath and when the ingot hasbeen lowered to a point at which the lower end of the upper slot is even with the level of the molten material in the molten bath, the remainder or unmelted portion of the ingot will slip ofi by virtue of the location of the center of gravity of each side of the slotted-ear whereby the attention of the operator is unnecessary in the complete removal of the ingot from the feederhook and be fed into the bath. The endless chain in its motion will then feed another ingot to the molten bath and the cycle will be repeated.

#Ingots of this type are by their nature more fragile 'at the slotted-eared portion than at the main body portion, and in shipment frequent breakage occurs at the slotted-eared portion. As ingots with broken slotted-cared portions cannot be used in connection with the automatic feeder,

the broken pieces must be shipped back to the place of casting for recasting. This makes for great inconvenience, increases the total shipping and handling costs and may be obviated to a greatextent by forming each end of the ingot with a slotted ear, whereby if one end is injured, the usefulness of the ingot is not entirely cores and away from the bottoms of the molds.

Further, the webs which are lower than the cores permit the insertion of the fingers of the operator or the two hands of the operator in a manner whereby the said operator may readily lift the ingot from the mold and stack same for storage or for shipment.

The embodiment illustrated in Fig. 4 is similar to that depicted-in Figs. 1, 2 and 3 with the exception that both the core 35 and the web 36 do not rise to the full height of the side walls 31 of the cavity 38 of the mold 39. The slot 40 formed in the side walls 31 extends somewhat lower than the top portions of the core 35 and the web 38 to insure a true slot in each end of the ingots caused therein. and to prevent a finned" over end portion. With this arrangement, the bottom wall I may be perfectly flat and yet permit the molds 39 to be stacked, one

' above the other, without injury to the cores 35 or web 36 as the walls 31 extend above the same. It will be obvious to those skilled in the art that various changes may be made in this de-.

vice without departing from the spirit of the invention and therefore the invention is not limited to what is shown in the drawing and described in the specification but only as indicated in the appended claims.

end portion and an end wall,

I claim:

1. A slotted cared metal ingot mold of the kind suitable for use in the casting of ingots forassociation with automatic type metal feeders such as the Margach" feeder, said mold having side, end and bottom walls forming a cavity, said mold having an elongated body portion and an an upstanding relatively thick strong core formed integral with the bottom wall of said end portion, an upstanding web comprising a relatively thin fragile portion formed integral with the core, bottom wall and end wall of the end portion, the top of said web and the top 'of said core being definitely at variance with each other in that the top of the core is higher than the top of said web, whereby when the mold is tilted an ingot cast therein may rideup on the core and permit'the insertion of a tool or the gloved fingers of the operator into the slot formed by the web and the removal of the ingot without dropping thereof is greatly facilitated.

2. A slotted eared metal ingot mold of the kind suitable for use in the casting of ingots for association with automatic type metal feeders such as the Margach feeder, said mold having side, end and bottom walls forming a cavity, said mold having an elongated body portion and an. end portion having a bottom wall and an end wall, an upstanding relatively thick strong core formed integral with the bottom wall of said end portion,

an upstanding web comprising a relatively thin fragile portion formed integral with the core,

bottom wall, and end wall of the end portion and extending from said bottom wall to a height lower than the top of said side walls, whereby a plurality of molds may be stacked without injury to said relatively-fragile webs and whereby when each mold is tilted an ingot cast therein may ride up on the side wall and permit the insertion of a tool or the gloved fingers of the operator into the slot formed by the web and the removal of theingot without dropping thereof is greatly facilitated.

3. A slotted ear metal ingot mold of the kind suitable for use in the casting of ingots for association with automatic type metal feeders such as the Margach" feeder, said mold having side, end, and bottom walls forming a cavity, said mold being elongated, an upstanding relatively thick strong core formed integral with the bottom wall at an end thereof and extending to a height above the said side walls, an upstanding web comprising a relatively thin, fragile portion formed integral with the core, bottom wall and adjacent end wall and extending from the said bottom wall to a height lower than the top of said side walls, the top of said web and the top of said core being definitely at variance with "each other, whereby when the mold is tilted an ingot cast therein'may ride up on the core and permit the insertion of a tool or the gloved fingers of the operator into the slot formed by the web and the removal of the ingot without dropping thereof is greatly facilitated.

. ALBERT H. JUNG.

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