US946721A - Ingot-casting machine. - Google Patents

Description

G. M. CLARK, JR. INGOT CASTING MACHINE.

APPLICATION FILED FEB. 8, 1909.

Patented Jan.*18,..1910.

4 sums-sum 1.

G. M. CLARK, JR. INGOTCASTING MACHINE.

APPLICATION FILED TEE. 8, 1909.

946,721 Patented Jan. 18, 1910.

4 SHEETS-SHEET 2.

l I I :I l 1 I! l l l I l: I I I II G. M. CLARK, JR. INGOT CASTING MACHINE.

' APPLTGATION FILED FEB. 8,1909.

946,721, Patented Jan. 18,1910.

4 SHEETS-SHEET 8.

4 SHEETB-SHEET 4.

Patented Jan. 18, 1910.

G. M. CLARK, JR.

INGOT CASTING MACHINE.

APPLICATION FILED IEB. 8, 1909.

"UNITED STATES PATENT curios.

GEORGE M. CLARK, JR., 015 NAHANT, MASSACHUSETTS. 5

INGOT-CASTING MACHINE.

Specification of Letters Patent. Patented 1311.18, 1910.

. Application filed February 8, 1909. Serial No. 476,728.

To all whom it may concern:

Be it known that I, GEORGE M. CLAnK, Jr, a citizen of the United States,-resid1ng at 'Nahant, in the county of Essex and State of Massachusetts, have invented newand useful Improvements in Ingot-Casting Ma chines, of which the following is a specificatlon.

Tl'llS invention relates to an improved 1ngot casting machine and the object is to pro-' vide a simple, durable and inexpensive ma-- chine by means of which molten type metal may be cast into ingots, the machine being employed in practice in melting up linotype,

- whereby the mold and ingot therein may be quickly cooled.

Astillfurther object is to provide improved means for relatively moving the mold members and to lock the same in cooperative relation to receive the molten metal.

Still another object is to provide means for adjustably supporting the mold and operating mechanism upon the pot for the molten metal and in such a manner as to be capable of being fitted to pots of.various sizes and shapes.

The invention consists in the novel features of construction and in the comblnatlon and arrangement of parts set for: in the .following specification and particularly pointed out in the appended claims. Referringto the drawings: Figure 1 is a plan of an ingot casting machine embodymg my invention, the pot for the molten metal being partly broken-away to save space.

Fig. 2 is a side elevation of the same. Fig. 3 is a section. partly in elevation, taken Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 10 is a pot of any usual or desired construction, on which is supported a frame comprising two frame members 11 and 12 resting upon the upper edge of said pot and provided, respectively, with lugs 13 and 14 extending downwardly into the interior of the pot. bers 11 and 12 a mold member 15 is rigidly secured in any suitable manner as by means of a plurality of screws 16, while another To the frame memmold member 17 adapted to cooperate with thev member 15 is movable toward and away therefrom. The .member 17, as is clearly shown in Fig. 4, is provided with a series of depressions l8 and a series of depressions 19 of the proper shape for the ingots to be cast, these depressions being arranged in pairs connected by grooves 20. 'A positioning screw 21 having screw-threaded engagement with the mold memberl5 is adjustably se cured thereto in such a manner asto bear against the outer wall of the pot 10, this ad- ]ustmentlbeing provided for the purpose of adapting the mechanism to pots of different sizes.

Formed on or secured to the member 17 upon opposite sides, respectively, thereof are hubs 22 and 23 on which are journaled wheels 24 and 25, respectively, adapted to run on a track comprising rails 26 and 27 fast to the frame members 11 and 12, respectively, said wheels being grooved as clearly shown in Fig. 4 so as to be guided laterally on said rails. -The mold member 17 is moved'toward and away from the mold member 15 by the following mechanism: Mounted in bearings 28 and 29 in the frame members 11 and 12,'respectively, is a rock shaft 30 having fast thereto an operating arm 31 by means of which a rocking movement may be imparted thereto. The rock shaft 30 is connected to the mold member 17 by toggles 32 and 33, the toggle 32 comprising an arm 34 fast to said rock shaft and a link pivotally connected to said arm' and also pivotally connected to the hub 22, while in like manner the toggle 33 comprises an arm 36 fast to said rock shaft and a link 3 7 pivot- 33 will be actuated to move the mold member 17 away from the mold member 15.

Referring to Fig. 3 it will be observed that the toggles 32 and 33 are so constructed and arranged that the axes of the pivots 38 and 39 are normally located below a plane AA containing the axis of the rock shaft 30 and the axes of the hubs 22- and 23, said pivots being prevented from passing below the position shown by means of lugs 40 and 41 formed on the arms 34 and 36, respectively, and adapted to engage lugs 42 and 43 formed on the links 35 and 37, respectively. It will be evident that by virtue of this arrangement when the toggles 32/and 33 occupy the position shown in thedrawings, said toggles act to lock the mold mem ber 17 against movement away from the mold member 15.

In order to prevent leakage between the two mold members it is desirable that their opposed faces shall be pressed tightly into contact with each other and to that end the bearings 28 and 29 are adjustably mounted in slots 44 and 45, respectively, formed in the frame members 11 and 12, the bearing,

and 33 to force the mold member 17 tightly against the mold member 15,-it being evident that a considerable pressure will-be exerted thereupon as the axes of the pivots 38 and 39 approach and pass the'plane AA.

I will now proceed to describe the pump and connections whereby the molten metal a is drawn from the pot 10 and forced into the ,mold. Located within the pot 10 is a Y. pump comprising a cylinder 51 rigidly secured to an arm 52 depending from and secured to the frame member 12-by means of a bolt 53 extending through a vertical slot 54 in said arm and through a horizontal slot 55 in said frame member, whereby when the mechanism is assembled the pump may be properly positioned withrespect to thepot. A pipe 56 connected'to the top of the cylinder 51 extends upwardly therefrom and is connected to an elbow 57 to which elbow is connected a horizontal ipe 58, said horizontal pipe being connected y means of a suitable coupling 59. to what I shall term a throat 60 having a cover plate 61 secured thereto. The throat 60 is secured to the mold member 15 and has therein a passage 62'forming a continuation of the assage 63 through said mold member, the atter passage communicating with a series of depressions 64 leading into the -depressions 18, respectively.

Located in the cylinder 51 is a piston 65 connected to a piston rod 66, said piston rod being connected by a link 67 to an operating piston 65 downwardly into the molten metal in the pot the valve 72 being lighter than the molten metal will lift and allow a portion of the metal to flow through the ports 71 into the space above the piston 65 and that when said piston is lifted said valve will close and force the molten metal thereabove through the pipes, '56 and 58, through the passages 62 and 63 and through the depressions 64 into the depressions 18, it being evident that the metal will fill not only the depressions 18, but the depressions 19 so as to form a series of ingots cast in pairs.

In order that the mold may be kept at a low temperature so as to rapidly cool the ingots after they have been cast, the mold members 15 and 17 are provided, respectively, with chambers 74 and 75 and for convenience of manufacture said mold members are provided with cover plates 76 and 77, re-

spectively. I

The hub 22 has screwed thereinto a plug 78 to whichis connected an inlet pipe 79,"

while in like manner the hub 23 has screwed as water through the. chambers 74 and 7 5,.

whereby the mold is maintainedat such a low temperature as to quickly cool the ingots therein.

The ingots after being formed are ejected by the following ejecting devices: Slidably mounted in the mold members 17 are a plurality of plungers 85 corresponding innumber to the depressions for the ingots in said mold member, said plungers being arranged in twoseries, an upper series and a lowerseries, said plungers being provided, respectively, withv shoulders 86. The shoulders 86 of the plungers85 are normally adapted to abut against stop plates 87, 87 fast to the cover plate 77 on the mold member 17. The plungers 85 are provided, respectively, with screw threaded portions 88 slidably arranged in upper and lower guides 89, 89 fast to the frame members 11 and 12, each of said screw threaded portions having mounted thereon two nuts 90 and 91 which may be adjusted one toward and away from the other by rotating the same in the proper direction, these nuts when properly adjusted being held against rotation by means of set screws 92 and 93, respectively,having screw-threaded engagement with said nuts and adapted'tobear against the plunger 85. When the mold member 17 moves toward the left, from the position shown in Figs. 1, 2 and 3,the screwthreaded portions 88 of the plungers 85 slide freely toward the left through the guides 89 for it will be understood that the ingots always stick-in said mold member and no relative movement takes place between said plungers and said mold-member until the nuts 91 strike against the guides 89. Thereafter as the mold member 17 continues to move toward the left it will be readily apparent that a relative movement will take place between the plungers 85 and the mold member 17 which will result in said plungers forcing the ingots out of their respective recesses and owing to the fact that said re-- cesses are vertically disposed the ingots fall therefrom without hindrance on the floor or into any suitable receptacle. Located beneath the throat 60 is aburner 94 provided with suitable orifices said burner being adapted to be supplied with gas, whereby said throat may be subjected to heat for a purpose which will appear hereinafter.

The general operation of the machine hereinafter specifically described is' as followsi "it will be understoodthat when the mechanism is assembled upon the edge of the pot the pump cylinder 51 is adjusted to the proper position in said pot according to the shape and size thereof, after which the pipes 56 and 58 are properly fitted up. to connect said cylinder to the mold. Assuming the parts to be in the position shown in Figs. 1, 2 and 3, the operator first grasps the handle of the operating lever (39 and lifts the same, thereby causing the pistol. to descend. He then pushes downwardly on the handle of the operating lever 68 thus raising the piston 65 and thereby forcing a supply of the molten metal through the connecting passages to and into the mold. He then releases the lever 68 and a slight reactionary movement of the piston 65 takes place, this resulting in the molten metal, which is in the passages 63, 62 and pipe 58, being drawn baclrwardly somewhat, thus lowering the level of said metal to the lower part of the restricted portion of the passage 63 and thus the ingots are separated from the metal in the passage 63. The solidifying of the ingots is a matter of but a few m0- ments because the mold members are amply cooled by the circulating water. The op erator then grasps the operating arm 81 after which the operation just described is repeated. I

It will be understood that the ingots will be formed in vertical pairs connected by a small web of metal and this web may then be broken so that the individual ingots will appear as shown in 6.

. When the machine has been out of operation it may be that some of the molten metal will solidify in the throat 62 and, therefore, in starting the machine up again it will be found necessary to apply heat to said throat, this being accomplished by means of the burner 94.

Having thus described my invention, what I claim and desire by Letters Patent to secure is:

1. An ingot casting machine having, in combination two relatively movable mold members, a toggle connected to one of said members, a rock shaft operatively connected to said toggle to impart a reciprocatory movement to one of said mold members, hearings in which said rock shaft is mounted to rock, a frame on which said bearings are mounted and adapted to be moved toward and away from said members, and means to adjustably secure said bearings to said frame;

2. The combination with a melting pot of an organized ingot casting machine detachably supported thereon, said machine includ-- ing a mold, a pump located in said pot and adapted to pump molten metal from said pot into said mold, and a lug projecting downwardly in contact with the interior of said pot a portion of said machine engaging the exterior of said pot.

' In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

GEORGE M. CLARK, JR.

Images