US797352A

US797352A - Reverberatory furnace.

Info

Publication number: US797352A
Application number: US22520204A
Authority: US
Inventors: Arthur M Gaylord
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-09-20
Filing date: 1904-09-20
Publication date: 1905-08-15
Anticipated expiration: 1922-08-15

Description

PATBNTED @6.15, 1905.

A, M.. GAYLORD., RRVERBERATORY FBNAGE.

APPLICATION FILED SBlT. 20,1904.

2 SHEETS-SHEET 1.

No. 797,352. PATENT@ AUG. 15, 1905. A. M. GAYLORD.

BEVERBERATRY FUBNAE.

APPLXGATIOII FILED snm?. 20,1904.

2 SHEETS-SHEET 2.

TTNTTTD 8T ARTHUR M. GAYLGRD, UF AUBURN, NEW' iORK.`

Speceaton of Letters Patent.

Patented Aug'. 1.5, 1905..

Application iilerl September 20, 1904. Serial No. 225,202.

To all?, 'wh/ont t infr/y concern:

lie it known that l, ARTHUR M. G-AYLORD, of Auburn, in the county of Cayuga, in the State of New York, have invented new and useful improvements in .Reverberatory Furnaces, of which the followir'ig, taken in connection with the accompanying' dr'awing's, a frrll, clear, and exact description.

This invention relates to improvements in reverberatory furnaces of the class set forth in my Patent No. 560,406, of May 19, 1896, and is adapted to be used for melting' metals which require a hig'h degree of heat.

The primary object of my present invention is to expedite the melting of metals and to reduce the cost and labor in handling' the molten matter.

A further object is to facilitate the work of repairs, and particularly the substitution of new linings for' the old ones, which have been rendered unlit for further use.

Other objects and uses will be brought out in the following description.

In the drawings, Figure 1 is a side elevation of my improved reverberatory furnace and its support. Fig. i). is a longitudinal vertical sectional view through the fur'nace seen in F ig'. 1. liig. 23 is a transverse sectional view 'taken on line 3 3 of Fig. 2. Fig'. 4 is a top plan of the lower section ofv the receiving pot or ladle for the molten metal and the car'- rier' therefor.

In carrying' out the objects stated I. provide an upright standard 1, with a horizontal track 2, having' at one end an upright plate or shield 3, and to this 'upright plate is secured at a suitable height a hydrocarbon-burncr f1, of any desired construction,adapted for the burning of oil as a fuel, said upright plate constituting' what may be termed the front of the apparatus and is formed with rearwardlyprojecting' shields and a forwardly-projeetingbracket (3, for the purl'iose lpresently described.

hlounted upon and movable along' the horizontal trackis a carriage 7, having' suitable ways 8 for receiving' a substantially sen1icylindrical ladle or melting-pot 9, which :is Inovable with said carriage toward and from the burner-tand front plate 8 between the shields -5 and also has an independent movement along and upon the ways 8 of the carriage 7, as shown by dotted lines rn Fig. 1. The

front ends of the bottom and sides of this ladle are inclined upwardly at 10 and abut against a suitable face 11 of heat-refracting material which is secured to the rear face of the plate 3, said plate 3 and its inner facing' 11 being' provided with a suitable oprnring` 12, which is alined with the bur'ner a for' admitting the products of combustion into the front end of the ladle or chamber i). This ladle is adapted to be removed from the earriage and placed upon a suitable carrier 13, Fig. et, and for this purpose it is provided with diametrically opposite trunnions 14 and a rear-end lug' 15, by which the ladle is supported upon the carrier 13 in the manner seen in Fig. f1, said ladle being' provided with a suitable lining 16 of heat-refracting' rnatcrial, such as iire brick or clay., and owing' to the fact that the front ends of the bottom and sides of the ladle are inclined forwardly it is evident that a limited quantity of molten metal may be retained in the ladle and may be transported to any locality where the molten nretal is to be poured.

Hinged at 17 to the upper' end of the front plate 3 and directly above the ladle Si is a segment 18 of a shell which forms a continuation of the ladle when the latter is in its nor mal position for receiving' the molten metal from a shell 1i) and, together' with the par't i), constitutes what may be termed the Hprimary heating-chamber, composed of lower and upper sections Si and 18, having' their' meeting' faces 2O disposed in an inclined plane inclinin,r l downwardly and forwardly from their rear ends, the upper part 18 being' provided with a lining' 21 and serves as a closure for the open upper side of the lower part 9, when in its normal position (seen in Figs. 1 and 2) for r'eeeiving the molten metal from the chamber 19. This upper section 18, being' pivoted at 17, may be swungI to the position shown by dotted lines in Fig. 1. in which position it r'ests upon and is supported by the bracket 6 and, together with its lining, provided with an opening 2Q in its top wall. the upper portion of which opening is conical or' hopper shape and receives a double-cone section 23, of [ire-brick or' other lieat-r'elr'act ing material. This double-cone section 23 is provided with a central opening' Q11, and its lower' conical end is fitted snugly in the conical opening 22.

The upper shell 19 is mounted upon the upper face of the swinging section 18 and is preferably divided vertically through its longitudinal center' to form opposite half scctions, has best seen in Fig. 3, within which is fitted a lining' 25 of heat-refracting' material, said sections being secured together face to face by clamping-bolts 26.

At the center of the bottom of the shell 19 is an opening 27, which is alined with the opening' 24C in the conical section 23 and has its lower end enlarg'ed or iiaring to form a conical recess 28, which ts snugly upon the upper conical end of the section 23. r1`he front and rear ends of the shell, or rather of the inner lining' 25, inclines downwardly toward the opening 2T, the front end being' provided with a swinging closure 29, which is hinged at 30, while the rear end is provided with a similar closure 31, which is hinged at 32, and each closure is divided horizontally through its center to form independentlymovable upper sections which are hinged at 33 so that the upper parts of the closures may be swung downwardly independently of the lower sections when desired.

The upper wall of the chamber 19 and its lining are formed with an opening' 34, in which is fitted a hopper 85, the upper end of which extends some distance above the top of the shell 19, while its lower end extends into the interior of the shell 19 and has a lateral offset 36, which projects horizontally beyond the vertical plane of the opening 2T. This hopper is adapted to receive the metal to be melted, which metal may be placed in the hopper by hand or otherwise and is immediately precipitated into the extension 36, which is directly over the opening' 27, and therefore the product-s of combustion from the burner 11 are free to pass upwardly through the openings 9,1 and 27 and impinge directly against and surround the horizontal extension 36, so that it is heated to a very high degree and quickly melts the metal at or near the discharge end of the hopper 35. This is an important feature of myinvention, for the reason that the discharge end of the hopper within the shell 19 contains only a limited amount of metal, which is therefore readily melted and iiows into the front end of the shell, while at the same time the metal in the upper portion of the hopper within the shell is softened and gradually melted` and thereby Qbviates any liability of choking' or clogging of the metal in the extension 36.

The molten metal which is discharged into the front end of the shell 19 flows backwardly into and through the

openings

27 and 24, and thus into the ladle 9, where it is maintained in a highly molten state until ready for pouring'. When this is desired, the upper shell 19 is removed by suitable cranes or otherwise, and the upper section or cover 18 of the ladle is then swung upwardly and forwardly to the position shown by dotted lines in Fig. 1, whereupon the ladle may be drawn backwardly and removed from the car 7 by the carrier 13.

claim, and desire to secure by Letters Patent, is-

1. A furnace comprising two chambers one above the other and connected by a vertical passage, a fuel-inlet communicating with the lower chamber and a hopper in the upper chamber having a portion thereof overlying the vertical passage.

Q. A furnace composed of two chambers one above the other and connected by a vertical passage, the lower chamber having a fuel-inlet and the upper chamber having a movable closure at one end divided horizontally to form two sections which are hinged to each other whereby the upper section may be swung independently of the lower section.

3. A furnace comprising' two chambers one above the other and connected by a vertical passage, the lower chamber having' a fuel-inlet and the upper chamber having an inlet for the material to be melted, said upper chamber having' its opposite ends provided with closures, each of which is horizontally divided to form lower and upper sections which are hinged tog'ether at their meeting edges whereby the upper section may be swungdownwardly upon the lower section.

4L. In a furnace, the combination of an uprig'ht wall having a fuel-inlet', a heating-chamber composed of lower and upper sections having one end open and abutting against said wall at opposite sides of the inlet, the lower under the upper section, and the Lipper section being hinged to the upright wall and adapted to swing toward and away from the lower section.

5. 1n a furnace, the combination of an uprig'ht wall having a fuel-inlet, a heating-chamber composed of lower and upper sections having one end open and abutting' against said wall at opposite sides of the inlet, the lower section being movable from under the upper section and the upper section having an inletopening' in its top, and a burner discharging through the fuel-inlet into said chamber.

6. ln a furnace, the combination of a track and upright wall having a fuel-inlet, a carriage movable upon the track, a heatingchamber' composed of lower and upper sections having one end open and abutting against said wall at opposite sides of the inlet, the

upper section being secured to the uprightwall and the lower section being mounted upon the carriage whereby it may be withy drawn from under the upper section, said upper section being provided with an inlet-opening in its top.

'7. In a furnace of the class described, the

l combination of a track and an upright wall I having la fuel-inlet, a gas-burner at the inlet,

a carriage mounted on the track, a heatingi chamber composed of lower and upper sec- 1 tions having one end open and abutting against Having' described my invention, what I section being movable longitudinally fronr 'said upright wall, the upper' section being' hinged to the upright wall and the lowersection being mounted upon the carriage whereby the lower section may be moved from under the upper section.

8. ln combination with a track and a carriage mounted thereon, a lieating'cliainber having' one end open and a burner discharg'- ing' into said open end, said chamber consisting' of lower and upper sections, one of said sections being' mounted on the carriage whereby it may be moved from the other section.

9. A. 'furnace compri sing' two heating-chambers one above the other and connected by a Vertical passag'e, a burner discharging' into the lower chamber, a hopper projecting' into the upper chamber and having' a portion thereof overlying' the vertical passage,said upper chamber being divided vertically through its longitudinal center for forming' opposite sections and means to clamp said sections together.

'10. In a furnace of the class described, two chambers one above the other and connected by a vertical passage, the lower chamber having' a fuel-inlet and heilig' divided horizontally to form lower and upper sections, the lower section being' removable from under the upper section, and a hopper for receiving' the metal to be melted, said hopper having a portion thereof extending' into the upper chamber and overlying' the vertical passage.

l1. ln a furnace, a heating-chamber having a fuel-inlet in one end and composed of lower and upper sections, the upper section having' an opening in its top, and the lower section being' removable from under the upper section, said sections having' their meeting' faces inclined upwardly from the fuel-inlet.

12. ln a furnace, a shell divided tl'iroug'h its longitudinal center for forming' opposite sections, a continuous lining' within the shell, said shell and lining having' openings in their tops and bottoms, means for clamping' the shell-sections together around the lining, a combustion-ehamber having' an opening' in its top communicating' with the openings in the bottom of the shell and lining and a hopper for the metal to be melted extending' through the openings in the top of the shell and lining' into the interior of the lining'.

13. ln a furnace, the combination with a combiistioircliambei', a shell supported above the combustion-chamber and having' an opening' in its bottom communicating' with said combustion-chamber, said shell being divided through its longitudinal center for forming' opposite sections, a continuous lining' within the shell and provided with an opening' in its bottom in line with the opening' inthe bottom "feasts f of the shell, said lining' having' portions of its bottom inclining` downwardly toward the opening' therein, and closures for the opposite ends of the shell.

14. ln a furnace, the combination of two chambers one above the other and having' con ical recesses in their adjacent faces, and a double conical sleeve or bushing' seated in the conical recesses and provided with a vertical passage communicating' with the interiors of said chambers, the lower chamber having' a fueln inlet and the upper chamber provided with a hopper having' a portion thereof overlying' the upper end of the said passage.

l5. The combination of a track, a carriage on the track. a heating-chamber having' a fuele inlet and composed of lower and upper sections, the lower section being' mounted upon the carriage and the upper section having a conical recess in its top, a second chamber mounted upon the upper section of lthe lower chamber and having' a conical recess in its bottom, a double conical bushing or sleeve seated in said recesses and having' a central passage communicating' with the interiors of said chambers, and a hopper adapted to receive the material to be melted, having' one end extending' into the upper chamber and overlying' the upper end of said passage.

16. In a furnace, a heating-chamber having' a fuel-inlet and divided longitudinally in an inclined plane for forming' lower and upper sections, the lower section being' removable from under thc upper section and provided with opposite side and end trunnions for the purpose described, said upper section having' an inlet in its topE 1T. In a furnace, a chamber having' a fuelinlet in one end, said chamber being' divided longitudinally in an inclined plane for forming' lower and upper sections, the lower section being' removable from under the upper section, and the upper section having' a conical recess in its top, and a hollow conical sleeve orbushing'seated in said recess and communicating with the interior of the chamber.

18. ln a reverberatory furnace, two hori- Zontally-disposed shells arranged one above the other and having' openings in their adjacent sides, in combination with a sleeve having' its ends seated in said openings, the lower shell having' its bottom portion separate from its top and constituting' a removable ladle.

In witness whereof l have hereunto set my hand on this 9th day of September, 1904-.

AhllflUlt M. GAYLORD.

lVitnesses:

H. E. Cinisn, lHOWARD l. DnNIsoN.