US1497696A - Metal-working furnace - Google Patents

Description

l 1,497,695 o. s.A PULLIAM v METAL WORKING 'FURNACE ginal Filed Feb. 3, 1922 June l? R924.

l il

.Patented lune 17, 1924i.,

OSWALIID S. PULLIAIVI, OF 'NEW YORK, N. Y., ASSIGNOR T0 HXBBARD PROCESS COR PORTION, OF NEW YORK, N. Y., A CORFORATON 0F NEW JERSEY.

METAL-W0 RKING FURNACE.

Application filed February 3, 1922, Serial No, 533,894, Renewed January 16, 1924i.`

To alito/1 om it may concern p Be it known that l, OswALn S. PULLIAM, a citizen of the United Stateaand a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved MetalVorking Furnace, of which the following is a full, clear, and enact description.

The present invention. relates to new and useful improvements in 'metal working furnaces, and it pertains more particularly to furnaces for use in the manufacture of wrought iron.

It is one of the objects of the invention to provide a furnace in which a batch may be thoroughly mixed.

lit is a further object of the invention to provide a furnace in which the balling operation may be carried out without the necessity of changing the batch from one furnace to another, p

It is a further object of the invention to provide a furnace which is capable of movement in more' than one direction in order to properly mix the batch and carryiout the complete operation.

, With the above and other objects in view,

" reference is had to the accompanying draw;

ings, in Which- Figure l is a vertical sectional vievv of a furnace constructed in accordance with the present invention;

Fig. 2 is a vertical sectional view taken on the line 2 2 of Fig. 1; l

Fig. 3 is a vertical sectional View taken on the line 3-3 of Fig. 1, and

Fig. i is a detail vertical sectional View of a modified form of the invention.

Referring more particularly. to the drawings, the reference character 5 designates a suitable support or standard, the upper end of which is provided with a bearing 6. The reference character 7 designates the furnace shell, and said shell is lined-With brick or other suitable refractory material 8. rThis fire-brick 8 is laid in courses 9, andsaid courses are spaced by courses 10 Ito provide a pluralityof channels 11, and said channels eing separated by ridges or the like 12.

Secured to the furnace in any desired man'- ner, is a tubular extension 13, and said tubular extension 13 has a substantially s herieal shaped bearing member 14 adapte to be received Within the bearing' 6. rThe enten vsion 13 is lined with fire-brick or refractory material l5 in order that heat may be introduced to the furnace as desired. Secured to the tubular extension 13 is an internal gear 1S, and meshing with said internal gear 18 isa gear 19 carried by a shaft 20. This gear 19 is disposed eccentrically upon the shaft 2O as shown more clearly in Fig. 3. Also secured to the extension 13` is a gear 21, and meshing with said gear 21 is a gear 22 carried by a shaft- 23. These two shafts 20 and 23 are connected with suitable driving mechanism in such a manner that either may be operated independently of the other.

The furnace 7 is provided with a plurality of doors 25, and said doors are arranged one within each of the channels 11. between the ridges 12.

This form of the invention operates in the following manner:

The furnace is charged through the doors 25, after which the doors are closed. rllhe shaft 20 is now driven and the furnace is rotated. Through the instrumentality of the eccentric gear 19, it is apparent that the furnace willbe given a gyratory motion in addition to the rotary motion which it receives since as the gear 19 rotates, the bearing 14; formed von the extension. 13 of the furnace will be rocked in the bearing 6 in a vertical line. Owing to its operation.y the charge of molten metal within the furnace is caused to travel circumfcrentially of the furnace, and, at the same time, is caused to cross over the ridges 12 in a. zigzag manner as the furnace is gyrated, thus causing a thorough mixing of the batch. After the batch has been thoroughly mixed and it is desired to ball the same, the furnace is brought to the true horizontal position shown in Fig. 1, after which the driving mechanism of the shaft 20 is disconnected. After this has been done, the shaft 23 is connected tothe driving mechanism and the furnace is rotated or oscillated in order that the-portion of the charge carried in each of the channels 11 may be balled. Observation ofthe several periods of the process is had through a sight opening preferably in one end of the furnace.

To permit of the escape of the products of combustion from thefurnace, the covering of the si ht opening may be moved to the posi- ,tion s own in dotted iines in Fig.

By this construction it is apparent that the present invention provides a new and im-4 proved form of furnace in which the mixing p mounted on said support, means for impartof the batch and the balling thereof may be carried out, and, at the same time,a furnace is constructed in which a plurality ofl balls mty be formed.

n the modified form of the invention, the furnace comprises a shell 30 lined With-rebrick 3l, in such a ,manner that two channels only yare formed with one intermediate ribl 33. This type of furnace is operated in the same manner as the type above described, and has the extension 34 lined with firebrick 35 carried thereby by means of which the furnace is rotated.

lVhat is'claimed is:

l. In a furnace of the type described, a

furnace chamber, means or imparting a gyratory movement to said furnace chamber, and means for rotating or oscillating said furnace independently of the gyratory movement thereof. y

2. In a furnace of the type described, a suitable support, a furnace chamber ing'a gyratory movement to said furnace chamber,`and separate and independently operated means for rotating or oscillatin said furnace chamber, independently of the gyratory movement thereof.

3.4Inva 'furnace' of the class described, a furnace chamber, a plurality of channels formed in said chamber, said channels being separated by intermediate ribs, and means for imparting a gyratory movement to said chamber to cause the material therein tc flow over the ribsl to the various channels.

4. In a furnace of the class described, a chamber, a plurality of spaces 'or channels formed on the interior of said chamber, and means for imparting a gyratory movement to said chamber to cause the material Within the chamber to pass from one of said` channels to the otherchannels over the ridges forming said channels.

5. In a furnace of the type described, a furnace chamber, means for operating the chamber'in one direction to cause the material Within the chamber to move from one end of the chamber to the other at an angle to the axis of movement of the chamber, land separate means for imparting a true rotary or oscillatory movement to the furnace to cause the material therein` to move at substantially right angles to the axis of rotation lof the furnace.V

OSWALD S. PULLIAM.

Images