US313849A - Hoisting and top-filling apparatus for blast-furnaces - Google Patents

Description

(No Model.)

P. BROWN.

HOISTING AND TOP FILLING APPARATUS POR BLAST PURNACES. No. 313,849.

Patented Mar. 1'7, 1885.

UNITED STATES PATENT OEEICE.

FAYETTE BROVN, OF CLEVELAND, OHIO.

HOISTING AND TOP-FILLING APPARATUS FOR BLAST-FURNACES.

SPECIFICATION forming part of Letters Patent No. 313,849, dated March 17. 1885.

Application filed November 12, 1883.

To all whom t may concern.'

Beit known that I, FAYETTE BROWN, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented `certain new and useful Improvements in Hoisting and Conveying Apparatus for Feeding Blast-Furnaces; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this application.

My invention relates to certain new and useful improvements in hoisting and topfilling apparatus for blastfurnaces; and it consists in the employment,for the purpose of supplying the ores, fuel, te., to the top opening of the furnace, of the novel means and appliances which will be hereinafter more fully described, and which will be more particularly pointed out and specified in the claims of this specification.

To enable those skilled in the art to which my invention relates to fully understand and practice the same, I willnow proceed to more fully describe the several features thereof, referring byletter to the accompanying draw ings, which make part of' this specification, and in which I have illustrated so much of an ordinary blast-furnace and of my improved hoisting and top-lling contrivance as seems to be necessary for the purpose of showing the construction of my improvements.

In the drawings, Figure l is a vertical sectional view of a blast-furnace with my improved contrivance combined therewith. Fig. 2 is a partial plan or face view of the inclined hoistway or bridge which I use; Fig. 3, a detail back View or elevation of what I call the supplemental or back f'rame which supports the upper end of the bridge and other devices. Fig. 4. is a side View of one of the carriers detached. Fig. 5 is a top view of said detached carrier.

In the several figures the same part will be found designated by the same letter of reference.

In the drawings, A represents an ordinary blast -furnace provided at the top opening with the usual metallic cover and with sealing-doors b b, of approved pattern or construction, and also with the usual hopper, c, and bell d.

(No model.)

As will hereinafter be more fully explained, the sealingdoors b may be made comparatively small (which is desirable) by reason of the use of automaticallydumping carriers. The bell d is opened and closed at the will of the engineer through the medium of lever B and compressed-air cylinder or engine C, and a cock in valve e, connected by means of suitable cords or cables with a handcrank, D, located where the engineer who attends to the hoisting-engine stands, while the gassealing doorsb b are with equal convenience manipulated by the engineer by certain connections under his control and vworked by turning in one direction or the other the hand-wheel.

F is an inclined bridge or roadway cornposed, as shown, of a suitably-constructed iron truss-work provided during the greater portion ofthe roadway forthecarriers, with crossties f, on which is laid and secured a track composed of two T-rails, g g, as shown. These rails, which may form a track of about fortyfour inch gage, extend from the lower end of the bridge or road-bed .up to a level about even with the top of the furnace, at which point they are bent over, so as to run for a short distance horizontally and immediately over the furnace-top, as clearly shown. (See Fig. l.) A continuation of theinclined track is formed for some distance upwardly beyond where the rails g g are bent, as described, by two short supplemental rails, hh, which, however, are arranged farther apart, and so as to form a wider gage than that of the rails g g, for a purpose to be presently explained. The lower end of the inclined track and bridge extends down into a pit, G, in order that the carriers may be conveniently filled or charged with the ore, fuel, 85e., to be elevated, and the upper end of said bridge is extended some distance beyond the top of the furnace, where it is secured to the top of :a vertical frame, I, al1 as best seen at Figs. l and 3. Near the upper end of the bridge F issecured thereon the short shaft J, that carries the cable-pulley K, and also the shaft L, that carries the idlers @which guide and supportthe cable M, one end of which is hitched to the bail Z of the carrier H, and the other end of Ioo which is wound on the drum of the hoistingengine at N. rIhe body of the carrier H is made preferably of steel, of about the proportions and shape shown, its top or open end being oblique to its sides, so as to be about the carrier is drawn up into the positionv shown in dotted lines at Fig. lthe front wheels will pass down between the supplemental rails or track h h, and follow along on or keep to the horizontal portions of the rails g g, while the back wheels, o o, will run on top of the Short rails or track h h, thus causing the tipping over and dumping of the carrier for the purpose of discharging its contents into the opening at the top of the furnace when th gassealing doors are open.

In connection with the foregoing description, coupled with the drawings, the following explanation will suffice to make clear the operations of my improved contrivance. Supposing the bell d to be up and the bottom of the hopper thus closed, and the gas-seal` ing doors c c to be open or raised, and the carrier II, while down in the pit G, as shown .in Fig. l, to have been lled or charged, the

engineer then starts the hoist-engine, thereby causing the cable M to draw the carrier upwardly over the inclined roadway. On approaching the upper terminus of its journey the carrier, by reason of its forwardwheels, p p, `keeping on and following the lines of the rails g g, while its broader back wheels, o 0, ride on upwardly on the rails h h, tips over or assumes the position shown in the dotted lines at Fig. 1, whereby its entire contents are damped or discharged into the top opening caused by lifting upwardly of the hinged sealingdoors b Vhen the discharge shall have thus been effected, the engineer causes the carrier to retrace its movements to the pit G. Then, by means of the hand-wheels E, he closes down the sealing-doors b b, and by turning the hand-crank at D,so as to work the cock or valve at c, causes the air-engine c to lower the bell d and allow the contents of the hopper to fall into the body of the furnace. He then Aby the same means and appliances raises thev bell to its uppermost position, so as to close the bottom of the hopper, and raises or opens the gas-'sealing doors, ready for the reception of another charge from the carrier. Upon the descent of the carrier to its original lowermost position it may be again filled, and the described operations repeated.

What I claim as new, and desire to secure by Letters Patent, is

l. In conibinationwith the furnace, the hoisting-machine and the two sets of tracks,

a car or truck constructed substantially as dei scribed-that is to say, with a bail pivot-ed at the rear end of the truck and extending forward, and two sets of wheels, the hind ones located farther from the body of the truck than the fore wheels, whereby when the car has been hoisted to the furnace-top its rear end may be elevated beyond its forward end and the load thus automatically dumped.

2. In combination with the furnace, the hoisting-machine, and the roadway, a car or truck provided with a bail orhandle pivoted at the rear of the truck, as and for the purposes set forth.

3. In combination with the furnace, the hoisting-machine, and the roadway,construct ed substantially as described, a car or truck provided with a bail or handle pivoted at its rear and with two sets of wheels, the rearmost wheels being wider than the foremost, as and for the purposes set forth.

In witness whereof I have hereunto set my hand this 3d day of November, 1888.

J noon FELBEL, M. H. SMITH.

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