US1394415A

US1394415A - Feeder for ingot-molds

Info

Publication number: US1394415A
Application number: US414060A
Authority: US
Inventors: Bloomfield H Howard; Ernest J Turner
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-10-01
Filing date: 1920-10-01
Publication date: 1921-10-18
Anticipated expiration: 1938-10-18

Description

B. H. HOWARD AND E. J. TURNER.

FEEDER FOR I'NGOT MOLDS.

APPLICATION FILED OCT. 1. 1920.

1,394,415. Patented: 001;. 18, 1921* 2 SHEETS-SHEET Elma/144:0:

EMM

WWI W5 B- H. HOWARD AND E. J. TURNER.

FEEDER FOR INGOT MOLDS.

APPLICATION FILED OCT. 1, 1920,

1,394,415, Patented Oct. 18, 1921.

2 SHEETSSHEET 2.

UNITED STATES PATENT 'OFFlC-E.

BLObMFIELD H. HOWARD, OF WASHINGTON, DISTRICT OF COLUMBIA, AND ERNEST J.

' 1 TURNER, F PITTSBURGH, PENNSYLVANIA.

FEEDER' FOR IN GOT-MOLDS.

I Specification of Letters Patent. Patented Oct. 18, 1921- Application filed October 1, 1920. Serial No. 414,060r

v To all whom it, may concern:

. jury to the ingot.

Be it known that we, BLooMFmLn H. HOWARWand ERNEST J. TURNER, citizens of the United States, residing, respectively, at Washington, District of Columbia, and Pittsbur h, in the county'of Allegheny and State of ennsylvania, have invented certain new and useful Improvements in Feeders for Ingot-Molds, of which the following is a specification. Y A,

Our invention relates to improvement in feeders for ingot molds. I 4 The object of our invention is to provide a feeder for ingot molds which keeps the upper end of the ingot in a heated state and practically eliminates 'blow holes *or cavities or what is known as pipingin the upper portion of the. iron or steel ingot and also prevent segregation and thus produce an ingot homogeneous throughout in both structure and material.

Another object of our invention is to provide a feeder of this character which can be readily applied to any form of plain top ingotmold and thus giving it a large range of utility and at the same time providing means whereby the feeder can be readily removed from the upper end of the mold without in- A still further object of our invention is to -providea cheap, simple and effective vfeeder of this I character having certain detail of structure and combinationjof parts hereinafter more fully set forth.

Inthe accompanying drawings;

Figure 1 is avertical sectional View of an ingot mold showing our improved feeder applied thereto.

Fi 2 is a top plan View of Fig. 1 showing t e inner sleeveorshell made in four sections.

Fig. 3 is a vertical sectional view of a similar ingot mold showing a modified form of feeder applied thereto.

Fig. 4 is a vertical sectional viewof a dif ferent form of ingot mold showing a further I modification of feeder applied thereto.

- Fig. 5 is a vertical sectional view of an other form of ingot mold showing a still further modification of our invention. applied thereto. I

Fig. 6 is a vertical'sectional view part1 broken away showing a still further modification of our invention/ Fig. 7 is a sectional view partly broken away showing a further modification of our invention.

Referring now to the drawings 1 repre sents an ingot mold, which as shown has its walls diverging toward the upper end but while we have shown this form of mold it will. be understood that any form of our feeder can be applied to any of the various form of molds shown in the different figures of the drawings. The feeder in each and all In the form shown in Fig. 1 the inner sleeve.

2 adjacent its lower end is provided with an outwardly extending flange 3 preferably formed integral therewith. This flange as shown is formed by crimping a beading thereon or could'be formed by securing a flange thereto made of a separate piece of metal. This flange could be in the form of a straight band or an L-shaped piece of metal or band. The outer periphery of the inner collar is of a diameter equal to the diameter. of the bore of the mold so that it will closely fit the, same as at 5, with the flange 3 resting upon the upper edge 6 of the mold. Placed upon the upper edge of the mold at its outer edge, is a cast iron or steel sleeve 7 of a thickness considerably greater than sheet metal sleeve 2. The diameter of the outer sleeve is greater than the diameter of the inner sleeve, leaving an annular space 8 between the

sleeves

2 and 7 When the outer Sleeve 7 has been properly placed upon the upper edge of the mold spaced from the inner sleeve 2, the space 8 is filled with sand or other're- .fractory material which hold the outer sleeve 7 against lateral movement on the mold, as theinner sleeve is held against lateral movement as heretofore described.

From the foregoing description it will be i seen that the feeder is of a considerable thickness and the sand becomes intensely heated by the molten'metal and remains'heated for a considerable length of time,thus preventing the rapid cooling of the ingot and prevents piping, as heretofore setforth and as is well understood by those skilled in the art. The molten metal of the ingot fuses. the inner sheet metal sleeve 2 and forms a part of the rial becomes intensely heated yet it protects the outer cast iron sleeve against excessive heat and when the ingot has cooled and hardened the outer sleeve can be lifted from the mold allowing the sand to fall on the outside of the mold.

While in some of the figures of the drawings we have the inner sleeve 2 of a single sheet of metal, it will be understood that the same can be made in several parts as shown in Fig. 2 of the drawings. In this event the cracks or spaces between the sections can be filled with fire clay to prevent the sand from running into the mold or a sheet of paper could be placed against the outer face of the sleeve 2 to cover the spaces to prevent the sand from running into the mold.

In the modification shown in Fig. 3 of the drawings we provide a holding member 9 for the inner sleeve 10. This holding member comprising a cylindrical portion adapted to closely fit the bore of the mold and having at its upper end a lateral flange 10 resting upon the upper edge of the mold and whereby it is supported against vertical and lateral movement. The upper edge of the holding member 9 is provided with an annular groove or channel 11 of a depth equal to the thickness of the inner sheet metal sleeve 10 and adapted to receive the lower end of the said sleeve, whereby the bore of the holding member and the inner sleeve are in the same vertical plane. In this form the outer sleeve and sand are arranged the same as in Fig. 1 of the drawings and need not be described.

In the modification shown in Fig. 4 of the drawings we have shown adifferent form of mold in which the walls are parallel but it will be understood that each and all of the modifications are adapted to be used on any of the different forms of molds. In this modification we have provided a sleeve holding member 14 in the form of a ring, having a laterally extending flange 15 intermediate its upper and lower ends. This flange rests upon'the upper edge of the mold and'the portion 16 below the flange closely fits the bore of the mold. The inner sleeve' 18 closely fits the portion above the flange with its lower end resting upon 15. The flange "15 is shown formed 'by crimping but the same could bemade in a separate piece. The

sand 20 and the outer sleeve 19 are arranged the same as in Fig. 1.

Tnthe form shown in Fig. 5 of the draw- I ings we provide a holding member 21 for the inner sleeve and which comprises a flat ring like member 22 resting upon the upper edge of the ingot mold and having a downwardly bent flange 23 closely fitting the bore of the mold. The lower end of the flange is bent upwardly as indicated at leaving the space 25 for the reception of the lower end of the inner sheet metalsleeve 26.

inner sheet metal sleeve 29 with the upwardly bent'porti'on 30 adapted to closely fit the bore of the mold 31 and the upper end of said upwardly bent portion provided with a lateral flange 32 resting upon the upper edge of the mold and whereby the.

said sleeve is held against lateral and vertical movement.

In the modification shown in Fig. 7 of the drawings the inner sleeve is perfectly plain at its lower end and engages the taper of the bore of the mold and supported thereby. The outer sleeve 34 like in the other forms rests upon the upper edge of the mold 35.

Having described our invention, what we claim and desire to secure by Letters Patent is:

1. A. feeder for ingot molds adapted to b removably supported by the upper .end of the mold, and having an annular refractory material receiving channel open at its upper end and its lower end closed by the upper end of the mold.

2. A feeder for ingot molds comprising two disconnected sleeves adapted to rest upon the upper end ofthe ingot mold and forming an annular refractory material receiving channel closed at its. lower endby the upper edge of the mold. '3. A feeder "for ingot molds comprising two disconnected sleeves one of sheet metal and the other of relatively thicker metal adapted to rest upon the upper edge of the mold and forming 'an annular refractory material receiving channel closed at its lower end by the upper edge of the mold.

4. A feeder for ingot molds, comprising two disconnected sleeves, the inner sleeve extending into the bore of the cylinder of the mold and having an annular flange resting upon the upper edge of the mold holding it against vertical movement, and the second sleeve resting. upon the upper edge of the mold and held against lateral movement by a filling of refractory material be- ,tween it and the inner sleeve.

5. A. feeder for ingot molds, comprising an inner sheetmetal sleeve adapted to ex tend into the bore of the mold and having positive means for supporting it therein, 7

and a second sleeve of a thickness considerably greater than the inner sleeve and disconnected therefrom and resting upon the upper edge of the mold and held against lateral movement by a filling of refractory material between it and the inner sleeve.

6. A feeder for ingot molds comprising a thininner sleeve supported against lateral and vertical movement within the bore of material between it and the inner sleeve.

7 A feeder for ingot molds, comprising an inner fusible metal sleeve supported upon it) the upper end of the ingot mold, an outer sleeve surrounding the inner sleeve and supportedby the upper end of the mold andformlng a refractory receiving channel between them having its lower end closed by the upper edge of the mold.

In testimony whereof we affix our signatures.

BLOOMFIELD H. HOWARD. ERNEST J. TURNER.