US905373A - Water-cooled mold. - Google Patents

Description

' G. o. SEWARD.

WATER GOOLED MOLD.

APIALIOATION FILED JULY 13, 1906.

905,373. Patented. Dee. 1,1908.

\. INVENTOR; WITNESSES; e055 -'w' 201? l 1' ifa/'mlm UNITED sTATEs PaTENT oEEICE.

I GEORGE O. SEWARD, OF HOLCOMBS ROOK, VIRGINIA, ASSIGNOR TO VIRGINIA lLABORAIRY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

' WATER-000mb MOLD.

' Specification of Letters Patent.

Patenten nee. 1', nous.

Application med ,July 41a, 1906. -seriai N9. 326,011.

" To all whom it may concern? Be it known that I, GEORGE AO. SEWARD, a

i citizen of the United States, residing at Holcombe Rock, in the county of Bedford and State of Virginia, have invented certain new and useful Improvements in Tater- Cooled Molds, of which the :following is a' water bath' or otherwise provided with a.

water-jacket. This method is dangerous because of the liability 'of the hot metal to melt. through the iron or steel mold or otherwise .to get into contact with the bodyl of water, which would result in a disastrous explo? sion. f

My invention is designed to secure an ecient cooling action while avoiding thel maintenance of any bath or body of water where by any possibility it couldv come into contact with the molten metal. y

According to my invention I provide for cooling the mold -by numerous small jets of water directed against its outer o'runder surface, the water being immediately conducted 'away,so that, if the bottom of the mold should be melted through, lthe molten metal could by no possibility come in contact with more than a very limited volume of water.

I construct the bottom, of the mold of a thick steel plate,v the sides of. the mold being of thinner met-al supporting any suitable refractory lining. The water spray'issecured by arranging a coil4 or rack ofpipe directly beneath the thickv plate having perforations to directy the jetsupwardly thereaga1nst, the waste water being caught 1n a box beneath having a large outlet so as to immediately conduct away the water without permitting any considerable quantity of it to collect.

The accompanying drawing is a vertical' section through the outlet of a furnace and through the mold and cooling means.

A is the furnace, whose outlet or tap B is shown open with the molten metal C pouring in to the mold D. The latter is shallow or of.

tray form, so that the ingot or pig is `made as an extended plate which may rapidly cool and may be easily broken upfor remelting. The mold is `made of a, thick plate E of' rolled steel which forms its bottom, and of side plates F which may be of thinner metal to support a refractory lining G, which may be of ltire-clay. This liningV should bev about three-fourths .of an'inch thick on 'its sides, with a mere wash G. on the bottom.

For cooling the mold, water` pipes H H are provided arranged beneath the plate E and having` perforations. in their upper sides' to of this plate. lVater under. suitable pressure is suppliedl from a. pipe H controlled, if

need be, by any suitable valve. For receivclosing the perforated' pipes and sloping to an outlet K formed by a pipe of such large area. and so sloped asto have abundant capacity for carrying olf the water, so as to avoid itscollecting in the box J. l

Although the proportions may be greatly varied, I vwill state that I have used for tapping to produce ingots of about eightinches thickness a steel plate E four inches thick, the sides F of the mold being of-ironv one inchthiek and twelve inches wlde, cooled by a three-fourths-inch water-pipe H in' four teen parallel branches perforatedwith one-4 eighth-inch holes two inches apart. y

As illustrating the safety of the construcdirect jets of water up against lthe under side .70 ing the spent water a box J is provided, in-

tion thus described, I mention anI instance where the plate E cracked acrossand the en- 'tire tap of metall ran down into the box while the sprayswere in' operation, Without'causing anyexplosion. .I

In using the' apparatus it is preferable lto turn off the'water after the tap has been removed from the plate E- (theside walls F. being separable therefrom), which leaves the bottom plate sufficiently hot -t'o readily dry 'the new lining for the next tap. l The particular construction and y.arrangement of the parts may ofcourse befconsiderably varied without departing fromfthe es'-A sentia] features of my invention.

I ,claim as my invention :ef

1.- A tappin *mold for receiving the superi molten metal I om an electric furnace, comprising a substantially fiat bottom plate, and having a cooling meansadapted to direct jets of'water against the under side of said plate, and means for rapidly carrying away the spent water, so that no material body of `1 carry-away the spent water therefrom, so

water can accumulate beneath' the plate at any time during the tapping.

2. A. tappin mold for receiving the super'- molten metal from anelectric furnace, comprising a'substantially flat bottom plate, and

thatno material body of water can' accumulate therein.

3. Atapping mold for receiving the supermolten metal from an electric urnace,'com prising a thick bottom plate, combined with cooling means adapted to direct jets of water upwardly againsty the' under side' of' said plate, and means for rapidly carrying away the spent water, so that no material body ot' water can accumulate therein. v v In'witness whereof, 'I l'iave hereunto signe my name 4in the presence of two subscribing witnesses.

l GEORGE OpSEWARD. Witnesses:

F. YON BIDDER, J. H. WEBB.

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