US714818A - Apparatus for casting pig-iron. - Google Patents

Description

"Two Model.)

K'JQRTH.. APPARATUS Foa cA'sTmG Pls mon.

(Application med :my 7, 1oo.|

No. 714,818. Patented nec. 2. |902.

' 4 K. 03TH. r

APPARATUS FOB CASTING PIG IRON.

(.xppxietion` meaJuly 7. 1900. Y (No Modas.) 2 shamsheet 2.

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APPARATUS FOR CASTING PIG-IRON.

SPECIFICATION forming part of Letters Patent No. 714,818, dated December 2, 1902.

` Application led July 7,1900. Serial No. 22.852. (No model.)

T a/ZZ whom it may cow/cern,.-

`Be it known that I, KARL ORTH, a subject of the Emperor of Austria-Hungary, residing at Donawitz, near Leoben, in the Province of Styria, in the Empire of Austria-Hungary, have invented certain new and useful Improvements in'Apparatus for Casting Pig- Iron; and I do 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 appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This inventionrelates to improved ap paratus for casting pig-iron whichenables a large number of molds arranged in rows to be filled simultaneously with the molten pig metal and also to be emptied in rows and the ingots distributed uniformly in the trucks for transporting the ingots towherever required, the movements requiredfor such filling and discharging being effected automatically and regulated accordingto requirements from one and the same point.

The casting apparatus for this purpose consists of a distributing ladle or channel, into which the fluid pig metal is run directly from` the tapping-spout of the blast-furnace, such 4 channel being arranged so as to be capable of being raised and lowered and also turned and being situated abovea movable bed containing the rows of ingot-molds. These rows of molds in being moved pass under the distributing-channel, so as to become filled therefrom, after which they are tilted over at-a cer-l tain point, so as tovhave their solidified contentsconsecutively discharged into a movable chute, which delivers the ingots of pig metal into the trucks and in consequence of while Fig. 2 is a section taken substantially on line GD of Fig. 3, some of the parts being shown in elevation. Fig. 3 is a section substantially on the line A B, Figs. l and 2. Fig. 4 is a section taken on lines I K of Figs. 5 and 6.` Fig. `5 is a section taken on lines G I-I of Figs. 4 and 6. Fig. 6 is a planof one of the ingot-inolds. Fig. 7 is practically a side elevation of the temporary retaining devices of a set of molds; Fig. 8, an end viewthereof, a section on lines E F, Figs. 7 and 9; and Fig. 9 is a plan of Figs. 7 and 8. Fig. l0 is aside elevation, and Fig. ll a plan, of the rack to automatically dump and right the molds.

Attached to the tapping-spout a of the blastfurnace is a distributing ladle or channel b, provided with a number of spouts lO and which is carried at one end on a spherical bearingc,while its other end carries a chainwhee-l 1l, around which passes a pitch-chain d, from which that end of the channel is consequently suspended. By a suitable motion of thischain the channel b can be raised or lowered and also turned for insuring a uniform distribution of the liquid pig-iron in the moldsf, situated below it. These molds,which for facilitating the simultaneous casting of several ingots are divided by partitions l2, are carried in rows on transverse bearers or builtup girders g, which extend parallel with the channel b and are supported at their ends by means of trunnions h on traveling longitudinal bearers i, that form the side sills of the carriage.

The transverse and longitudinal bearers constitute the traveling mold-bed, which can be moved to and fro by means of a rope k, passing over pulleys j, for bringing all the rows of molds under the distributing-channel and within reach of the device for effecting the tipping over of the separate rows. This device consists of a bracket Z,f1xed at the side of one of thelougitudinal bearers t' and having its upper surfaceformed as a toothed rack 13, with which can come in contact toothed quadrants m, iixed on extensions of the trunnions 71., situated on that side of the mold-rows. On moving the bed in the one direction-21 e., away from the` distributingchannel-the toothed quadrants on coming into gear with the rack will be turned so as to effect the tilting of the respective mold- IOO rows, so as to dump or discharge their ingots. On moving the bed in the direction toward the `distributing-channel the mold-rows are raised up again into the position for being lled, the molds of each following row being made to overlap those of the preceding row, so as to form a continuous closed surface. In order to produce this result, each moldf is provided' on one side with a lip 14, that overlaps the adjacent mold, effectually preventing metal from running between the rows of molds While the bed is passing under the distributing-ladle.

Below the bed is arranged the distributingchute n, into which the cast ingots fall from the tilted mold-rowsin order to be led by this onto the inclined plate o and thence into the trucks p to be loaded. The chute and inclined plate are fixed to bearers q, arranged parallel to the longitudinal bearers 't' of the mold-bed, which bearers q are supported by rollers 1', which run upon rails s. The chute and the inclined plate are by this means capable ofa longitudinal motion the extent of which is determined by the width of the truck, so that the ingots can be deposited in rows in the trucks, which are thus uniformly loaded without requiring manual labor for the purpose.

The shifting of the mold-bed and chute is advantageously effected by means of electromotors land u, of which the one eects the rotation of the dru'm o through suitable speedreducing gear, around which drum the rope k of the mold-bed .is coiled, while the other electromotor effects the rotation, also through speed-reducing gear, of a shaft w, carrying toothed wheels gearing with toothed racks on the bearers q of the chute-frame. Both electromotors are started and controlled by an operative by means of suitable switch apparatus of known kind actuated near the tapping-hole of the furnace, which operative also effects the motion of the distributingchannel. In order that the mold-rows may be securely held in the upright position during the process of casting-'t'. e., when they do not require to be tilted--there is provided, as shown at Figs. 7 to 9, on one of the trunnions h, a finger m, that is held by a springcatch y and which in the upright position of the molds rests upon a cranked spring-arm When the molds are to be tilted, this fmger, supported by the spring-pressure of the arm z, must first push the catch y to one side, after which the turning of the mold-row can take place. In like manner on the return motion the finger again pushes the catch to one side, after which the catch springs back over it and holds it in position.

The toothed rack on the bracket Z can, if necessary, be arranged to be slid laterally out of gear with the toothed segment of the mold-rows in the event of the mold-bed requiring to be shifted when not casting on account of repairs, dac., as shown in Figs. 10 and 11., where the rack 13 is shown held laterally adjustable on the bracket Z by means vof bolts 13l,slidablein`slots 132 in said bracket.

In order to enable the separate molds to be rapidly changed when necessary, they are secured to the transverse bearers by meansof looped bolts and keys, as shown at Figs.l 4 and The mode of working with the casting apparatus is as follows: The mold-bed is moved in the direction of the arrow, Fig. 1, underneath the distributing channel or ladle, and by a suitable adjustment and turning of the latter the previously-raised mold-rows are filled one after the other. As soon as the lilling of the molds has been completed the electromotor t is reversed and the mold-bed is moved back. During this time the ingots will have cooled, and when the last-filled moldrow is brought with its toothed segment in gear with the toothed rack of bracket Z it will in consequence of the continued motion of the bed be gradually tilted, so that the contents of the entire mold-row will fall onto the distributing-chute and will slide down the inclined plate into the trucks, situated close together. In a similar mannerthe other moldrows will be consecutively tilted and emptied, the chtite being at'the same time moved to and fro by the second electromotor u in order to eect the uniform distribution of the` ingots in the trucks, asabove described. When all the mold-rows have been emptied, they are moved back toward the distributing-channel again and are at the same time raised into position for receiving a fresh charge.

I claim- 1. In a casting apparatus, a reciprocating bed, parallel rows of molds extending the width of the bed; in combination with a distributing-ladle extending across the bed and arranged to receive molten metal direct from a furnace and a number of'pouring-spouts on said ladle corresponding to the number of molds in a row, substantially as described.

2. In a casting apparatus, a reciprocating bed, parallel rows of molds extending the width of the bed; in combination with a trough-shaped distributing-ladle extending across the bed and arranged to receive molten metal direct from a furnace, a number of pou ring-spouts on said ladle corresponding to the number of molds in a row and means for tilting the ladle to pour metal simultaneously into all the molds of a row, substantially as described. l

3. In combination, a blast-furnace, a moving casting-bed located beside said furnace, rows of molds carried by said bed, a distributing-ladle arranged to receive molten metal direct from said furnace, a number.v of pouring-spouts on one side of the ladle corresponding to the number of molds in a row, a bearing at one end of said ladle and means at the other for leveling and tilting the ladle, substantially as described.

4. In combination, ablast-furnace provided with a metal notch, a moving casting-bed Ilo- IOO IIO

cated beside the furnace, rows of molds carried by said bed, a distributing-ladle arranged to receive molten metal direct from the furnace, said ladle provided at one end with a universal joint to a fixed element below the `metal notch, a number of pouring-spouts on one side of the ladle corresponding tothe nu mber of `molds in a row, a sprocket-wheel at the other end of the ladle and alchain` in which said wheel is hung, substantially as described.`

5. In combination, a blast-furnace provided with a metal notch, a standard below the metal notch provided with a socket, a distributingladle suitably lined and arranged to receive molten metal direct from the furnace, a trunnion on one end of the ladle and a ball there,- on fitting said socket,a trunnion and sprocket- `wheel at the other end, a number of pouring- "spouts on the ladle, a chain in which the sprocket-wheel and trunnion are hung and a casting-bed provided with parallel rows of moldsreciprocable under the ladle, the num- .f berof molds in a row being the same as the numberof pouring-spouts on the ladle, whereby all the molds of a row can be simultaneously filled, substantially as described.

6. In combination, a distributing-ladle, a

furnace arranged to discharge into the ladle,

` a number of pouring-spouts on the ladle and a casting-bed reciprocable beneath the ladle, comprising a reciprocable carriage, rows of molds supported on trunnions on said carriage, there being as manymolds in a row` as there are pouring-spouts on the ladle, whereby all the molds of a` row will be sim ultaneously iilled, substantially as described.

7. A casting apparatus comprising a distributing-ladle, a plurality of pouring-spouts on one side thereof, a casting-bed reciprocable beneath the ladle, comprising a carriage, a plurality of rows ot' molds, each row mounted `on trunnions and means located to dump each i and pouring-spouts on the ladle, whereby all the molds of a row can be simultaneously filled duringthe passage of the bed beneath the ladle, substantially as described.

9. AIn a casting apparatus, a reciprocable `bed comprising a carriage, rows of molds mounted on trunnions, lips on said molds on one side arranged to overlap the adjoining side ofone adjacent row of molds when in filling position and engage the bottom of the other adjacentrow when in dumping position, substantially as described.

10. InV a casting apparatus, a bed comprising a carriage formed oit'` end and side sills, rows of molds mounted on trunnions held in `turned bottom of the other adjoining row,

and means for dumping said rows by reason of the movement ot' the bed in one direction and righting them by reason of its movement in the other direction, substantially as described.

l1. In a casting apparatus, a bed comprisinga carriage, parallel rows of molds provided with trunnions journaled on said carriage, each row of molds provided with lips that overlap an edge of one of the adjacent rows when in filling position and engage the bottom of the other adjacent one when dumped, a sector for each row of molds, a rack fixed in the path of the sectors to dump and right the rows of molds, substantially as described.

12. In a casting apparatus, a distributingladle, parallel rows of molds reciprocal thereunder, means for automatically dumping said molds at a predetermined point when they are moved in one direction and right them when moved in the opposite direction, a trough arranged to receive the dumped castings and a device for delivering and loading them in regular order in suitable trucks, substan tially as described.

13. In a casting apparatus, a distributingladle, parallel rows of molds mounted on trunnions on a reciprocable carriage, means ata detinite point to automatically dump and right the rows of molds, a truck independently reciprocable below the molds, achnte and a plate thereon, substantially as described.

14. In a casting apparatus, a reciprocable carriage, rows oi' molds mounted thereon, a stop, a spring-catch and an arm for each row of molds, said arm arranged to strike said stop and be held by the catch, substantially as described.

15. In a casting apparatus, parallel builtup girders, trunnions secured to each end, rows of molds keyed to each girder, a toothed l sector and an arm on a trunnion of each 16. In a casting apparatus, a distributing-` ladle positioned to receive molten metal direct from a furnace, rows oi' molds reciprocable thereunder, the molds of` a row adapted to be simultaneously filled from the ladle, means to automatically dump and right the ICO IIO

rows of molds successively, a chute below the molds at the point Where they are dnmped,a reciprocable chute adapted to receive the ingots from the first-mentioned chute to regularly load them into cars, substantially as described.

17. In a casting apparatus, a distributingladle positioned to receive molten metal direct from a furnace, a carriage `reciprocable below the ladle, rows of molds,leach mold having a lip 14, a built-up girder to support each row of molds, trunnions on thekends of l the girders supported on the Carriage, a In testimony that, I claim the foregoing as' toothed sect-or secured to a trunnion on each my invention Ihave signed my name in pres- 'lo grrder; a rack in the path of the sectors to ence of two subscribing Witnesses.

dump and right the molds, a stationery chute i below the hed at the dumping-point and a KARL ORTH' :reoiprocable chute no receive ingots from the Vibnesses:

first-mentioned oneto regularly load them, GUSTAV PHILIPPITSOH, substantially as described. l ALVESTO S. HOGUE.

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