US1915650A - Multiple ingot pouring apparatus - Google Patents

Description

June 27, 1933. M. G. DUMAS MULTIPLE INGOT POURING APPARATUS Filed Oct. 1, 1930 2 Sheets-Sheet l INVENTQR li/Mfl 40W ATTORNEY June 27, 1933. M, e. DUMAS MULTIPLE INGOT POURING APPARATUS Filed Oct. 1, 1930 2 Sheets-She el; 2

Tiigji @g LT INVENTOR ATTORNEY Paten ed June 27, 1933 PATENT OFFICE MAXWELL G. DUMAS, OF PITTSBURGH, PENNSYLVANIA MULTIPLE INGOT POURING APPARATUS Application filed October 1, 1930. Serial No. 485,619.

16 multaneously by means "of apparatus which is capable of receiving the entire contents of a pouring ladle and to pour the metal into the molds at a uniformand desirable rate of flow.

' In accordance with the present invention,

120 I provide apparatus which functions to control the flow of the metal to the ingot molds in such manner that the plurality of molds may be filled at a uniform rate of speed and with an equal volume of metal in each mold. V

For this purpose, the apparatus is provided with adjustable spouts which may be manipulated to regulate the flow of the molten metal to the individual molds while maintaining thehead pressure and the amount of metal uniformly constant for all of the molds.

Another object of the invention is to provide apparatus which shall be adapted to control the flow of metal to the molds independently ofthe flow from the ladle or other supply means, said apparatus being adapted to stop the flow to the molds entirely without interrupting the flow from the supply source.

The invention will become more apparent fromj a. consideration ofthe accompanying drawings in which like'reference characters designate likeparts and in which:

Figure 1 is anend elevational view partially in section, of amultiple pouring device embodying the principles of this invention:

Figure 2 a side elevational view'thereof with a portion of the apparatus cut away for the sake of clarity:

Figure 3 an end elevational view of a modified form of the device shown in Fig.

1: and

Figure 4 a side elevational view thereof.

lVith particular reference to Figures 1 and 2 of the drawings, the structure therein illustrated comprises a suitable foundation generally designated at 1, of concrete construction, from which arises a plurality of vertical supports 2 which are adapted to engage the extended portion ofa pair of endibrackets 3, the latter being secured in the wall structure 4, from which a platform 5 extends parallel with the brackets 3.

The end brackets are adapted to journal a trough 6 for receiving the molten metal which is provided with trunnions 7 that are pivotally supported in the brackets 3 to permit an gular movement of the trough6 in response to a manually operated lever 8 towhich it is connected by a link 9 and lever 10. The operating lever 8 is adapted to be locked in its adjusting position by a pawl that interacts with angularly spaced openings 12 of a segment plate 13 which is mounted on the platform 5.

The trough 6 is shaped to have one flat side 15 and a flat bottom 1Q the latter being continuous with a rounded side 17, the trough being lined with suitable refractory material 18 to provide the necessary hea t insulation for the molten metal. The top of the trough is provided with a cast metal cover 19 having a hopper 20 into which the molten metal is poured from the usual ladle into which it is received from the open hearth, and with the exception of the hopper 20, the cover 19 is closed'to retain the heat in the chamber of the trough. The side 15 of the trough is provided with openings 21 in longitudinally spaced relation, and a plurality of spouts 22 are mounted in cooperative alignment with the openings 21 to conduct the metal to the ingot molds 23.

The spouts 22 are bifurcated as shown in Figure 2, the spout having a pair of troughs 24 which are spaced apart a distance equal to the normal or convenient spacing of the ingot molds when mounted on trucks for pouring. The spouts consist of a casting 25 hav ing a shaft 26 which is adapted to be journalled ina bearing 27 mounted on shoulders formed on the brackets 3 and on a cross supsuitable refractory material 29 to prevent chilling of the metal flowing to the molds 23;

As shown in F igure 2, the multiple.pour

ing device may be adapted for the pouring of four or more ingots which are convenient- I v ":trough 6 may be conducted regardless of the 1y mounted on trucks 30as is the customary practice and the ingots may or may not be provided with hot tops 31 which areemployed as sink heads to prevent the formation of piping in the ingots.

Provision is made for adjusting the trough to maintain the outlet 21 in horizontal aline- 'ment with said trough so that metal flows below the spouts 22 by moving the trucks 30 intheir proper position on the tracks which areprovided below the pouring device, and the lever 8 ismoved to the position where the rounded portion of the walls 16 and 17 constitute the bottom of the trough. The trou h is then charged withmolten metal from t e ladle, the'metalbeingpoured through the hopper 20 which is of such shape that the metal willflow through the opening of the cover regardless ofthe position of the trough, and after the trough is filled the spouts 22 are adjusted to bring their troughs 24 in horizontal alignment, after which the lever 8 is pulled forward to tilt the trough 6 sufficiently to have the metal discharged through the openin s 21 at the desired rate of flow. The

metal owing'from the openings 21 will flow 'mol'dsat a uniform rate and the trough 6 is tilted forward. by moving the lever 8. in increments corresponding to the spacing of the notches 12, until it-has reached the position shown in the illustration of Figure 1.

I I As the ingot molds fill to their tops, it'may be desirable to have them fill up equally, and for this purpose the spouts 22 are'manipulated through the hand wheel 28'so that the streams of metal flowing out of the troughs 24 may be regulated to cause an increased flow into one'of the molds and a correspondingly reduced flow into the other mold whereby the volume .of metal in the molds may be balanced. This is especially important where hottops are employed as it is desirableto bring the ingots up tothe same level once the metal contacts with the bottom of the hot tops and to then interto permit the metal to freeze. around the For example, the flow 0 relatively small angle.

spacing'between the hot top and the mold to form a seal before filling the hot tops with molten metal. V 7

By means of the adjustment on the spouts 22 the flow may be so controlled" that the metal in the. ingots is at the same level in the respective molds and the adjustment can be conveniently made without interrupting the pouring operation.

Pouring of metal from the ladle into angular osition of the trough and maybe continue during the chan ing of the molds. 5 metal from the ladle to trough 6 may be initiated when the latter is in the position shown in Figure 1 with openings 21 in a horizontal plane with metal flowing almost immediately to the molds. Thefloutstanding advantage of the angular adjustment of trough 6 is the flow regulation and the feature ofstopping the flow entirely without the necessity ofemployingplugs with all its attendant hazards, as in ladle pouring.

In the modification illustrated in Figures 3 and 4, the trough is shown in the reversed position with the opening directly over the ingotmolds and in the construction shown, the spouts are eliminated. This constructionis a simplification ofthe apparatus dis closed in Figures 1 and. 2 of the drawings, and hasthedisadvantageof lacking the-flexible adjustment of the movable spouts for regulating theflow of the metal to the ingot molds for the purpose described. However, it illustrates that the rinciple V ofthe rounded wall of the troug andthe lever operatedtiltingfeature, may be employed without the use of adjustable spouts. It is evident from the foregoing description of this invention that a plurality of ingotsvmayi be poured simultaneously and at'uniform levels by the simple adjusting mechanism which'provides for the ouring of two or any increased number 0 ingots in multiples of two ingots, becauseofthe fact that the filling of each pair of themolds is separately regulable. 1

It is also evident that the rounded in the manner shown, permits em tying all of the metal therefrom'as it can entirely discharged by'tilting it through 11 Although one modification of the'invention has been herein illustratedand described, it will be obvious to those skilled in the art that various modifications may be made in trough when ing a receptacle for molten metal adapted f for rotary movementon its horizontal axis and having an opening-for delivering'metal to a spout, a spout in position to receive the metal from the receptacle and conduct it to an ingot mold means i for adapting said receptacle to simultaneous- 1y receive molten metal from a ladle and feed it to said spout, and means to rotate the receptacle for stopping the flow to said spout Without interrupting the flow from the ladle to the receptacle. I

2' Apparatus for pouring ingots comprising a receptacle for molten metal adapted for rotary movement on its horizontal axis and having an opening for delivering metal to a spout, a spout in position to receive the metal from the receptacle, said spout having a' plurality of troughs for conducting the metal to a plurality of ingot molds, means for adapting said receptacle to simultaneously receive molten metal from a ladle and feed it to said spout, means for regulating the flow of metal in the several troughs of said spout, and means to rotate the receptacle for stopping the flow to said spout Without interrupting the flow from the ladle to the receptacle.

3. Apparatus for pouring ingots comprisgated in a direction transverselv of the rotating axis of said receptacle to adapt said recepta-cleto continuously receive molten metal from a ladle While the receptacle is subjected to rotary movement through a predetermined angle and said metal feeding opening being located at substantially right angles to said receiving opening to regulate or stop the flowof metal from the receptacle by rotary movement of the receptacle without interrupting the flow from the ladle to the receptacle.

In testimony Where I have hereunto set my hand.

MAXWELL G. DUMAS.

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