US1146573A - Metallurgical implement. - Google Patents

Description

C. F. JACOBS.

METALLURGICAL IMPLEMENT.

APPLICATION FILED JULY 10, 1914.

1,146,573. Patented July 13, 1915.

nurr

CHARLES F. JACOBS, OF CHICAGO, ILLINOIS.

METALLURGICAL IMPLEMENT.

Application filed July 10, 1914.

To all whom it may concern:

Be it'known that 1, CHARLES F. JAooBs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Metallurgical Implements, of which the following is a specification.

'This invention relates to improvements in a metallurgical implement, and it consists in certain peculiarities of the construction, novel arrangement, and operation of the parts thereof as will be hereinafter more fully set forth and specifically claimed.

In the art or science of, metallurgy, and especially in the foundry branch thereof, it

is highly desirable, after metal has been melted in a suitable receptacle or crucible, to pour it therefrom, or from a ladle used for carrying molten metal from the furnace to the mold, in such a manner that the poured metal will be asclear and pure as possible, that is to say, to free it, in the act of pouring it from the crucible or ladle, of all surface impurities, such as dross, flux, charcoal, and other deleterious substance, and at the same time, to provide means for its flow from the receptacle in a way to protect it from the detrimental effects of gases and atmospheric influences or action thereof.

It is the main or principal object of the invention to provide simple and eflicient means for attaining the above mentioned re sults.

Another object of the invention is to provide means for accomplishing the aforesaid desirable objects or results, which can be used in connection with crucibles or ladles of the ordinary or well-known type. 1

Other objects and advantages of the invention will be disclosed in the subjoined description and explanation.

In the attainment of the foregoing results, I employ a crucible or receptacle adapted for holding and pouring molten metal, equipped with means to cause the metal to flow from the bottom of the receptacle, and to so confine the scum or floating impurities that it will cover the major portion of the surface of the metal during the operation of pouring, thus excluding air and gases therefrom, which in some metals cause oxidation and otherwise deleteriously affect the metal and castings made therefrom. This means for causing the metal to be poured from the bottom of the receptacle Specification of Letters Iatent.

Patented July 13, 1915.

Serial No. 850,114.

and for confining the scum or floating impurities will also cause the latter to be separated from the metal and retained in the receptacle, from which it can be discharged without its becoming mixed with the metal.

In the accompanying drawing, which serves to illustrate an embodiment of the invention Figure 1 is a vertical sectional view taken on line 11 of Fig. 2, looking in the direction indicated by the arrows, of an implement embodying the invention; Fig. 2 is a plan view of the implement; Fig. 3 is a front perspective view; Fig. 4: is a fragmental perspective view, showing the receptacle tilted and the metal in the act of being poured therefrom, and Fig. 5 is a detached perspective-view of the partition member and dam used in connection with the receptacle for causing the metal to be poured from the bottom thereof.

Like numerals of reference refer to like parts throughout the different views of the drawing. 7

The reference numeral 10' designates a crucible or other suitable metal pouring receptacle, which may be made of any desired size, form, and of the usualrefractory material, but saidreceptacle is by, preferance cup-shaped, and is provided at its upper end on its inner surface with a channel or trough 11, which will act as a spout for discharging the metal from the receptacle. Fitted within and on the receptacle 10 is a partition member, which may be made of any suitable material, but is oblong in shape, as is clearly shown in the different views of the drawing, so as to extend from the top of the crucible or. receptacle 10 to near the bottom' thereof; This partition member is of sufficient width to segmentally intersect the receptacle when said member is placed vertically therein, as shown, and so that its edges will rest against the inner surfaces of the receptacle. The lower portion of the partition 12 is by preference cut away as at 13 to permit of the free passage of the molten metal between the lower end of said partition and the bottom of'the receptacle, but it is obvious that said cut-away portion may in some instances be dispensed with. At its upper end the partition member 12 is provided with a flange weir or dam 1 1, which is located at a right angle to the member 12, or substantially in such position. At each of its ends the flange 14L terminates in a downward or overhanging holder, which is designated as a whole by the reference numeral 15, and each holder is by preference provided with an upwardly extended slot 16, which divides the holder into two members or portions 17 and 18, the former of which portions depend downwardly at the ends of the flange dam 14, while the portions 18 are extended forwardly and downwardly thereof and will overhang the receptacle 10 in front of the portions or members 17, as will be clearly understood by reference to Fig. 3 of the drawing. As is clearly shown, the holders 15 of the flange 14 are located at suflicient distances from the edges of the member 12 to permit of the reception of the upper portion of the receptacle between the portions 17 and 18 of each of the holders 15 and the adjacent edge of the member 12 when the latter occupies its operative position, as is shown in Figs. 1 to 4 inclusive of the drawing. The portions 17 and 18 of each of the holders may be made slightly resilient so as to clamp the wall of the receptacle and thus more securely hold the partition member 12 and the flange dam 14: in position.

In using the implement, it is apparent that when it is desired to pour the metal from the crucible or receptacle, the scum or covering which is indicated in Fig. 4 of the drawing by the reference numeral 19, may be pushed back from the front upper. portion of the receptacle (by which portion is meant that part thereof from which the metal will be discharged or in which the trough 11 is formed), when the partition member 12 may be inserted in the thus cleared portion ofthe metal until the flange dam 14c rests on the top of the receptacle and the holders 15 engage the upper portion thereof, after which by tilting the receptacle in the proper direction, it is obvious that the metal between the partition member 12 and the front portion of the receptacle will be discharged at the top of the latter, and that said space will be replenished with the molten metal between the lower end of the partition member 12 and the bottom of the receptacle, thus causing the major portion of the metal to be poured from the bottom, in which operation it is manifest that the scum or floating impurities will be confined by the flange dam 1 1 and the member 12 so as to protect the upper surface of the molten metal from exposure to gases and the atmosphere until all of the metal is discharged from the receptacle, when the dross and impurities will be retained in the bottom of the receptacle.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is- 1. In a metallurgical implement, the combination with a receptacle having one of its ends open and its opposite end permanently closed, of a detachable and flat member extended therein from the open end of the receptacle with its edges alongside the inner surface of the wall of the receptacle and intersecting said wall segmentally and having its lower end spaced from the bottom of the receptacle, a dam on the upper end of said member and having at each of its ends an overhanging and depending member in alinement with the dam, the said dam also having near each of its ends a member extended downwardly against the outer surface of the receptacle.

2. In a metallurgical implement, the combination with a receptacle having one of its ends open and its opposite end permanently closed, of a detachable and flat member extended therein from the open end of the receptacle with its side edges alongside the inner surface of the wall of the receptacle and intersecting said wall segmentally and having its lower end spaced from the bottom of the receptacle, a dam located at the upper end of said member and having at each of its ends an overhanging and depending clamping member in alinement with the dam, the said dam also having near each of its ends a clamping member extended downwardly against the outer surface of the receptacle.

CHARLES F. JACOBS. Witnesses:

CHAS. C. TILLMAN,

A. S. PHILIPS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or Eatents,

Washington, I). G. i

Images