US714692A - Press for compressing liquid steel in conical ingot-molds. - Google Patents

Description

No. 714,692.v Patented nec. 2, 1902. l Y H'. mlmma.

' 4 PRESS FOR COMPRESSING LIGUID STEEL IN GDNICAL INGDT MDLDS.

'4 l (Application med .my s, 1902.)

(N9 llnd'el 2 Shges-*Shmatl l.

No. 7|4,692.I 1- Patented Dec. 2H, 1902.

A m H. HARMET. PRESS FDRCOMPRESSNG LIQUID STEEL IN CONIGAL INGUT'MULDS.

(Appmrim med my s. 1902.)

` nu. Qm I UNrTnn STATES' MATENT Camicia.

HVENRIIIARMET, OF ST. ETIENNE, FRANCE;

PRESS FOR COMPRESSING LIQUID STEEL lN CONICAL INGOT-MOLDS.

SPECIFICATION formingpart of Letters Patent No. 714,692, dated December 2, 1902. Application led July 8, 1902. Serial No. 114,760. (No model.)

To @ZZ whom t merg/concern:

Beit known that I, HENRI HARMET, a citizen of the Republic of France, residing at St. Etienne, Le Marais, Loire, France, have invented a new and useful Improvement in Presses for Compressing Liquid Steel in Conical Ingot-Molds, which improvement is fully set forth in the following specification.

This invention has for its object improvements in presses for compressing liquid steel in conical ingot-molds.

Up to the present steel has been compressed in conical ingot-molds by pouring the metal directly into the top ofthe ingot-mold and in compressing a single ingot per press.

According to this invention the metal iows into the ingot-mold through the bottom of the same, the metal being then compressed by means of a movable bottom. Four ingots may thus simultaneously be compressed by a single press by means of any suitable mechanical arrangements.

Causing metal to iiow into the ingot-mold through the bottom is not novel; but my invention consists in supplying metal through a bottom which when the ingot-mold is filled is moved and also in the special arrangement of the bottom, which allows the steel to be compressed in the conical ingot-mold from bottom to top.

My invention consists in the arrangement which allows the metal to flow in axially at the bottom of the ingot-mold `without the walls being uuequally heated and in which the bottom through which the metal Hows is, as has been stated, movable in the interior of the ingot-mold. The ingot is compressed in the conical ingot-mold by causing it to advance from the bottom toward the top, the

ingot -mold being stationary. The pipe through which the metal passes to the bottom of the ingot-mold is sheared as soon as compression commences and remains full of metal. For this object the ingot-mold is divided into two parts: first, the ingot-mold,7 properly so called; second, a base or lower portion upon which it rests and through which metaliiows tothe movable bottom. The bottom is housed in the base, and when the mold is full of metal it is pushed upward by the com pressing-ram, the inlet--pipe being sheared. This arrangement is applicable to large or small ingot-presses.

In the annexed drawings, Figure 1 shows an arrangement applicable to large iugots. Fig. 2 shows a multiple press for the compression of smallingots.

In the figures, 1 is the ingot-mold, properly so called. l

2 is the base 0r lowerportiou, through which the metal passes. It is connected to the vertical pipe 3 by key-bolts 4 and is protected against the heat of the liquid steel by the hollow brick 5.

6 is the truck, to which the base 2 is bolted.

7 is the movable bottom, which Vis hollowed to form a continuation of the hole formed iu the base 2. The brick 8 protects the bottom 7 against heat and forms a continuation of the brick 5 for the inlet of metal. In the case of large ingots it is well to place above the bottom 7 a second bottom 9, protecting the joint between 1 and 2. The brick l0, provided, as shown, with brick cones, makes the lling-hole which remains contiguous to the bottom of the ingot of a shape which facilitates the discharge of the ingot from the mold.

11 is a protective lining, of brick, protecting the metal pipe 3.

12 is a brick lining protecting the elbow.

The passages having the refractory linings 1l 12 5 8 10 are connected the one to the other in such a manner that no particle of liquid metal can pass out through the joints.

With the arrangements shown the ingotmold is illed from the bottom. When the metal is at the required height, the truck 6 is placed beneath the press, and the ram 13 rising pushes 7, which shears the outlet from the pipe 14., the rupture taking place at the joint between the bricks 5 and 8. The ingot is compressed in the conical ingolt-mold, as usual.

Having now particularly described and ascertained the nature of my said invention and in what manner the same isto beperformed, I declare that what I claim isl. In presses for compressing rliquid steel in a conical mold, an ingot-mold formed in two parts, the ingot-moldproperly so called IOO and the base, the said base being provided with a lateral passage for the inlet of the liquid metal, the said passage coinciding when metal is flowing in With a passage formed in the movable bottom which is housed in the base,-the said bottom being capable of upward movement by the action of the press by which it is lactuated at the moment of compression. l

2. In a device of the character described, an ingot-mold comprising an upper conical portion forming the mold proper and a base portion, a lateral passage arranged in said base and forming an inlet for the liquid metal to the mold, a bottom for the mold proper arranged to move vertically in said base, a passage arranged in said bottom and coinciding with the lateral passage in the base when the bottom is in its lowermost position, and means for elevating the bottom into the mold proper, whereby the inlet to the m'old may be sheared during the compression of the ingot -in the mold.

3. In a device of the character described, a group of conical ingot-molds arranged to be fed by separate inlet-pipes from a reservoir of liquid metal in combination with a movable bottom for each mold arranged to form a continuation of the inlet-pipes when the bottoms are in their lowermost position and means for elevating the bottoms simultaneously into the molds, whereby the inlet-pipes may be sheared during the compression of the ingots in the several molds.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

HENRI HARMET.

Witnesses:

ANTOINE CROZIER, HASTIN Gs BURROUGHS.

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