Metal-working furnace

Abstract

Claims

Eek. 5 192%. METAL WORKING FURNACE Filed Feb. 5, 1922 WITNESSES A TTORNEYS @SWMD Q PULLEASQ, 932 new "YORK, N. 3., ASSIGNOR T HZBBALRD E ROGESS @GRPOM- Timid, 6F NEW YGEK, N. Y., A CORPGBKIIGN 0F NEW JERSEY. srnsnnwonnms rnnnnon. n lmotion ens rennin s, tees. semi no. access. To all whom it may concern: 7 Be it known that l, Oswano S. Ponnmnc, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented new and Improved Metal-Working Furnaces, of which the following is a full, clear, and exact description. The resent invention relates to new and useful mprovements in metal working furnaces, and it pertains more particularly to a furnace employed in the manufacture of wrou htiron. It is one of the objects of the present invention to provide a single furnace in which a large butch of molten 'metel may be treated.- till lit is a further object of the invention to provide means for intimately mixing the molten metal with slag employed in the process during one of the steps thereof. ln the manufacture of wrought iron, one of the steps of the process is the balling o the metal after the same has reached it oertein stage. This boiling operation is cenerally done in a single ball, and it is a further object of the invention to so construct a furnace that a plurality of halls me he manipulated at a sin le' operation. t is it further object of t e invention to construct a turnnce in such a manner that "the mixing and balling steps are carried out within the-same heating chamber. it is u still further object of the invention to so construct the furnace that it is capable of oscillation and rotation in order that otter the batch hos reached the proper stage, it me be transferred from one portion of the urnace to the other to carry out the succeeding steps of the operation. lit is a still further object of the invention to so construct s furnace that during the helling process of a plurality of hells, any one of the bells may be selectively discharged from the furnace at the will of the operator. 'With the shove and other objects in view, reference is had to'the accompanying drawingsin whichl igure l is a vertical sectional view of a furnace constructed in accordance with the present invention; Fig. 2 is e deteil sectional perspective view of the interior of the furnace, Referring more particularly to the drawings, the reference character 5 desi. ates vertical standards, the upper end 0 each of which is provided with a bearing 6. The reference character 7 designates the furnace which is formed of any material, such as sheet metal indicated at 8, and lined with a re-fractor material 9. I Secure to the outer shell of the furnace are trunnions 10, and said trunnions 10 are mounted in the bearing 8 of the standards 5. One of the trunnions is rovided with a driving gear 11, which is e opted to be on erated by any suitable driving mechanism (not shown). The other trunnion is hollow as indicated by the reference character 12 and is lined with refractory material 9 similur to the bod of the furnace, and this hoilow trunnion orrns the means by which heat is introduced into the interior of the furnace 7. in constructin 1y one-half of th the furnace approximatee inner portion thereof is f formed with longitudinally extendin inwardly projecting walls 15, and sai inwardly projecting wells 15 are adapted to form projecting ridges over which the material is precipitated during its mixing with mill scale, slag, or the like. The remainder of the interior of the wall otithe furnace is formed with a plurality of circurn'ierentially extending projections or ribs 18. These circu nterentielly extending projections or ribs 16 are formed by interposing courses 1? of fire-brick with respect to courses 18 of fire-brick, the courses l8 having concave surfaces and bein spaced with respect to one another by t e heretofore mentioned courses 17, The outer shell 8 of the furnace is provided with a plurality of separate doors 20, and said doors are so positioned that they form a part of the channels between the projections or ribs 16 in such a manner that the material contained in any of said channels may be discharged therefrom independently of the remaining channels? The operation of the device is as "follows: With the furnace positioned as shown in Fig. 1, one of the doors 20 is opened and the charge to be treated is introduced therethrough to the space hetweenthe projections or ribs 15. After the charge has been thus positioned within the furnace, the furnace is oscillated and the charge is precipitstcd backwardly and forwerdly on the central Sfi ribs 15 to thoroughly mix the elements 0 the charge. When the charge attains the proper condition, the furnace is rotated in such a manner that the ribs or projections 16 are brought to the bottom thereof. In thus rotating the furnace the charge is transferred from the space between the projections or ribs 15 to the channels between the projections or ribs 16, and said charge will be divided into four parts, there bein one part in each of the channels. Wit the several parts in this position, .the furnace is again oscillated and the charges in the channels between the projections or ribs 16 are bailed. As the balling operation is carried out, the several balls owin totheir nature, will not all be ready to be discharged at one time. 'However, by the provision of. theseveral doors 20, as any of the balls reaches the condition to be discharged from the furnace, this may be accomplished by opening the door 20 of the channel in which said ball is contained. From the foregoing it is apparent that the present invention provides a new and improved form of puddling and balling furnace in which a plurality of balls may be simultaneously handled and singl Y and independently discharged from the urnace at any time during the process. What is claimed is: 1. In a metal balling furnace, means for forming a plurality of individual balls, and means for selectively discharging said balls from the furnace. 2. In a paddling and balling furnace, 3.1n a puddling and balling furnace, means for operating upon a single batch, means for dividing said batch into a plurality of separate batches, means for simultaneously balling said separate batches, and means for selectively discharging said separate batches. 4. In a furnace for uddling and balling iron, a plurality of ri s extending parallel with the longitudinal axis of the furnace, said ribs serving to mix a batch of molten metal, and a plurality of ribs extending circumferentially of the furnace to provide a plurality of intermediate channels adapted to divide the batch into a plurality of individual batches, as and for the purpose set forth. 5. A metal working furnace formed with a plurality of working surfaces, means within one of said working surfaces for mixing a batch of molten metal, means within the other of said working surfaces for dividing said batch into a plurality of separate batches and subsequently balling said separate batches, and means for selectively discharging the sel'eral batches after they have been subjected to the balling operation. 6. in a metal working furnace, a plurality of parallel channels for forming a pluralit of individual balls and means associated with said channels whereby the balls therein may be discharged therefrom. . oswann s. return.

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