US1087142A - Apparatus for treating metal articles. - Google Patents

Description

J. G. RUSSELL.

APPARATUS FOR TREATING METAL ARTICLES.

APPLICATION FILED JAN. 2, 1913.

Patented Feb. 17, 1914.

2 SHEETS-SHEET 1.

INVENTOFI WITNESSES J. C. RUSSELL.

APPARATUS FOR TREATING METAL ARTICLES.

APPLICATION FILED JAN. 2, 1918.

1,087,142, Patented Feb. 17, 1914.

2 SHEETS-BHBET 2.

WWII/mmmm UNITED STATES PATENT OFFICE.

JAMES C. RUSSELL, OF PITTSBURGH, PENNSYLVANIA.

APPARATUS FOR TREATING METAL ARTICLES.

Application filed January 2, 1913.

To all whoa; it may concern Be it known that 1, JAMES C. RUSSELL, a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful lmprovement in Apparatus for Treating Metal Articles; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to an apparatus for treating metal articles, such as ingots, and has special reference to the treatment of cast metal ingots immediately after the pouring of the same.

The object of my invention is to provide a cheap, simple and efiicient apparatus for the treatment of cast metal ingots, whereby the ingot will be so formed or treated as to eliminate the piping, blow-holes, hollows or segregations usually formed in the same and the ingot so treated will be of a solid homogeneous mass of metal throughout.

To these ends my invention consists, generally stated, in the novel arrangement, construction and combination of parts as hereinafter more specifically set forth and described and particularly pointed out in the claims.

To enable others skilled in the art to which my invention appertains to construct and use my improved apparatus for treating metal articles I will describe the same more fully, referring to the accompanying drawings, in which Figure 1 is a longitudinal sectional view of the apparatus. Fig. 2 is a cross sectional View of the same. Fig. 3 is a view of the ingot in the mold showing its condition when placed in the apparatus for treatment. Fig. 4 is a cross sectional view of an apparatus for treating hollow ingots. Fig. 5 is a view of an ingot having a hollow center showing the same in the ingot mold. Fig. 6 is a longitudinal sectional view of the ingot after rolling. Fig. 7 is another form of ingot mold.

Like symbols of reference herein indicate like parts in each of the figures of the drawings.

In the casting opcmrion of forming the ingot the ordinary ingot mold is used except that the mold is circular in shape and has its sides tapering upward so that the ingot formed therein will he conical in shape and circular in cross-section, as shown in Fig. 3 of the drawing. After the ingot is thus formed and as soon as it has become frozen Specification of Letters Patent.

Patented Feb. 17, 1914.

Serial No. 739,773.

on the outside of the same and while its center is still in a liquid condition it is taken from the ingot mold and is carried in a suit- I able manner to the apparatus A for treatment in the same, as hereinafter described.

The apparatus A comprises a rolling mill having the side frames or housings 1 on each side of the same, in which are mounted the lower rolls 2 and 3 and the upper rolls 4 and 5. The upper rolls 4 and 5 are adjustable in height so as to allow for the receiving and withdrawing of ingots from the same and this is accomplished by means of the movable journal block 6, which carries said rolls.

A heavy screw 7 is adapted to pass through the upper part of each of the housings 1 and rest upon the center of the movable journal block 6 and such screws are each provided with a bevel gear 8 which mesh with bevel gears 9 on the horizontal shaft 10, and such shaft is provided with a hand wheel or bar 11 at one end thereof for operating the same. This may also be operated by power.

The movable journal blocks 6 are provided with rods 12 extending through the same and such rods extend downward through the base 13 and into the pit 14 where they are connected to a bar 15. Extending downward from the under side of the base 13 and into the pit 11 is a support 16 which has a cross bar 17 pivoted therein at its center and such bar is connected by its one end to the bar 1.3 by any suitable means, while its other end connected to a heavy counter weight 18. This counter weight 18 is adapted to move in a vertical direction and is guided by the rod 19 which is held in place in the bottom of the pit- 14 and in the base 13 of the apparatus A.

At the front and rear of the apparatus A and secured to the side frames or housings 1 are tables 20 and 21 respectively and such tables are in line with the top surface of the lower rolls 2 and 3 and are for the purpose of handling the ingots before and after their admission and treatment by the rolls of the said apparatus.

The lower rolls 2 and 3 and the upper rolls 4 and 5 are each provided with a slot or groove 22 near each end of the same and in line with each other, and such slots are adapted to receive idle rolls or disks 23 for the purpose hereinafter described. The idle rolls 23 on one side of the apparatus A have a round hole 24: in the same and a plunger extends through such hole and between the rolls 2, 3, 4 and 5 while the outer side of the same is connected to an accumulator or weights of various amounts in order to exert a force or pressure at the inner end of such plunger. The plunger 25 has an idle roll 27 at the inner end of the same for rotating with the ingot.

The operation of my improved apparatus treating metal ingots is as follows After the ingot has cooled in its mold just sufiiciently for the outer surface of the same to be in a frozen condition in order that it may be handled it is removed from the mold and is placed upon the front table 20 in front of the rolls. The bar 11 is then turned so that the shaft 10 is rotated and as the gears 9 mesh with the bevel gears 8 on the screws 7 the said screws are thus rotated and raised so that the counter weights 18 will operate to raise the upper rolls 4 and 5 through the medium of the rods 12, bar 15 and cross bar 17, which is connected to said bar at its one end and to the counter weights 18 at its other end. The ingot a is then pushed forward until it rests on the lower rolls 2 and 3 whereupon the upper rolls 4 and 5 are lowered until they come in contact with the large end of the ingot a. The ingot is placed in the rolls so that the small end of the same is at the same side of the machine as the plunger 25. The other end of the ingot a rests against the roll or disk 23 and the plunger 25 presses against the smaller end of the ingot with a force just sufficient to prevent the other end of the ingot a from leaving said disk, and such disk and plunger will also hold the molten metal in the ingot. As the rolls 2, 3, 4 and 5 are rotating the ingot a is being spun around and the operator gently turns the bar 11 so as to increase the pressure of said rolls on said ingot and this will, of course, first place the pressure on the large end of the ingot a and the gases will be pressed out of the same and outward through the plastic surface which is not hard or set but just of sufficient solidity to prevent the molten metal on the inside from escaping. The operator continues to place pressure on the rolls until the ingot is reduced to the same diameter throughout its length. During this squeezing and spinning process the idle roll 27 on the plunger 25 will hold one end of the ingot a against the disk 23 and the said idle roll will hold up the other end of the same and the plunger 25 will be pressed outward as the ingot a is increased in length by the pressure of the heavy rolls. The spinning and rolling of the ingot a will tend to gather up the liquid metal into the plastic metal just as is done in the puddling process while the result will be the elimination of the blow holes, piping and segregation. If found necessary the hood 26 may be used for the purpose of containing heat when the ingot cools too suddenly and it is necessary to apply external heat from gas, electric or actylene burners to increase the temperature of the same. The upper rolls 4 and 5 are now raised as described and the ingot a is rolled out upon the table 21 to be carried to the rolls for rolling it into the shape desired, or carried to a press for further treatment, while another ingot is passed from the table 20 onto the lower rolls 2 and 3 and the upper rolls 4 and 5 are lowered, as explained.

Fig. 4 shows a view of an apparatus constructed along the same line as the apparatus described but having a rod 28 which is adapted to pass into the hollow center of an ingot a, such as shown in Fig. 6, and remain therein during the rolling of the same to prevent the center 29 of the ingot from being crushed by the heavy rolls 2, 3, 4 and 5. This ingot a having the hollow center 29 will be used principally where an inner tube or pipe 30 of metal is placed in the ingot mold and the molten metal poured around the same in order to provide for the hollow center.

Various modifications and changes in the design, construction and application of my improved apparatus for treating metal articles may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

What I claim as my invention and desire to secure by Letters-Patent, is

1. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, and means for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls.

2. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, and idle rolls for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls.

3. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, and means within said space for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space.

4. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, and idle rolls within said space for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space.

5. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, said rolls having recesses therein, and means within said space and recesses for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space.

6. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, said rolls having recesses therein, and idle disks within said space and recesses for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said s ace.

7. n apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, means for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls, and movable means for engaging with one end of such ingot to hold the other end of such ingot against said first named means and to allow the elongation of the ingot.

8. An apparatus for treating metal ar ticles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, means Within said space for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space, and movable means for eng: ging with one end of such ingot to hold the other end of the ingot against said first named means and to allow the elongation of the ingot.

9. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, said rolls having recesses therein, means within said space and recesses for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space, and movable means for engaging with oneend of such ingot to hold the other end of the ingot against said first named means and to allow the elongation of the ingot.

10. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, idle disks for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls, and movable means passing through one of said disks and engaging with one end of such ingot to hold the other end of the ingot against the other disk and to allow the elongation of the ingot.

11. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, idle rolls within said space for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space, and movable means passing through one of said rolls and engaging with one end of such ingot to hold the other end of the ingot against the other idle roll and to allow the elongation of the ingot.

12. An apparatus for treating metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of pipe formed therein, comprising rolls for receiving and rotating such ingot in a space between such rolls and about its longitudinal axis, said rolls having recesses therein, idle disks within said space and recesses for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position in said space, and movable means passing through one of said disks and engaging with one end of such ingot to hold the other end of the ingot against the other disk and to allow the elongation of the ingot.

13. An apparatus for treating hollow metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action 0* the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, means for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls, and means for fitting into the hollow center of said ingot to prevent the same from being crushed by the action of the rolls.

14. An apparatus for treating hollow metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, means for engaging with the ends of such ingot to hold the molten metal therein and the ingot in osition between the rolls, and arod for fitting into the hollow center of said ingot to prevent the same from being crushed by the action of the rolls.

15. An apparatus for treating hollow metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, means for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls, and revoluble means for fitting into the hollow center of said ingot to prevent the same from being brushed by the action of the rolls.

16. An apparatus for treating hollow metal articles such as ingots and other similar bodies to prevent blow-holes, segregation and the injurious action of the pipe formed therein comprising rolls for receiving and rotating such ingot between the same about its longitudinal axis, means for engaging with the ends of such ingot to hold the molten metal therein and the ingot in position between the rolls, and a revoluble rod for fitting into the hollow center of said ingot to prevent the same from being crushed by the action of the rolls.

In testimony whereof, I the Said JAMES C. RUSSELL, have hereunto set my hand.

JAMES C. RUSSELL.

\Vitnesses:

T. B. HUMPHRIES, J. N. CooKE.

Copies of this patent may be obtained for flve cents each, by addressing the Commissioner of Patents Washington, D. C.

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