US393136A

US393136A - young

Info

Publication number: US393136A
Authority: US
Publication date: 1888-11-20
Anticipated expiration: 1905-11-20

Description

(Nuo Model.)

R. o. Y0U-N3.

TUYERB.

Patented Nov. 20,3333..

yNo. 393,136.

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ROBERT O. YOUNG, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF THREE- FIFTHS TO THE MASSILLON PLACE.

STONE AND FIRE BRICK COMPANY, OF SAME TUYERE.

SPECIFICATION forming part ol Letters Patent No. 393,136, dated November 20, 1888.

(No'modcl.)

To aZZ whom it may concern.;

Be it known that I, ROBERT O. YOUNG, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Tuyeres; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to an improvement in tuyeres for use in cupola-furnaces, and is illustrated in the accompanying drawings, in which- Figure l is a horizontal section through the wall of a cupo1a-furnace, showing the tuyeres, the section being on the line y y of Fig. 2. Fig. 2 is a vertical cross-section on the line x x of Fig. l. Fig. 8 is a perspective view of one of the parts of the tuyere.

Like symbols ofreferencc indicate like parts in each.

In the drawings, Figs. l and 2, 2 represents -the wall of the furnace, 3 is thejacket which incloses the wall, and 4 is the wind-box. The tuyercs are made of re brick or clay, and consist of several parts, as sh own in the drawings. The inner sections, 5, are at tiles, whose edges are inclined so as to conform with the radial lines of the furnace. The faces of the sections 5 are grooved, and, when superposed, the grooves form the hollow bore or passage of the tuyere. At the back ofthe sections 5 are other sections ,6,which are similarly superposed and grooved, and whose bore forms a continuation ofthe bore of the sections 5 in the same lines therewith. In order to break joint with the tile-sections 5, the sections 6 are made of less width, and other tile, 7, are built in the wall to fill up the spaces. The

tiles

5 and 6 together form the tuyere, which at the front end opens into the furnace and at the rear is in communication with the wind-boX.

My reason for making the tuyere in four sections is that the inner sections, 5, being more directly exposed to the heat ofthe furnace, burn out more rapidly than do the outer sections, 6, and may be removed from time to time without need of renewing the outer sections. In this way I get a distinct saving in the cost ofthe tuyere.

As shown in Figs. 1 and 3, the grooves in the faces of the tiles are made at such an inclination that the bore of the tuyere shall be dared inwardly-that is, it shall be wider at the inner end than at the rear or wind-box end-and shall graduallytaper from one end to the other.

Tyeres of cupola-furnaces are apt to become clogged with molten metal from the interior of the furnace, and when that happens with the tuyeres heretofore in common use it is necessary to d rop the bottom ofthe cupola, remove thefuel and charge, and, after cooling the furnace, the choked tuycre is torn out and another tuyere substituted. Besides the loss of metal occasioned by this operation it causes a loss Of time and an outlay of considerable labor and money. All this is avoided by the use of the inwardly-flaring brick tuyere, because the clogging metal can be forced out by a tool inserted into the tuyere from the outside, and on account of the easly-frangible nature of the brick the adhering metal will chip Off on the inside, so as to allow the easy discharge of the metal Without damaging the body of the tuyere, as it would were itmadc of metal.

I claim- 1. As a new article of manufacture, a hollow inwardly-flaring brick tuyere for meltingfurnaces, substantially as and for the purposes described.

2. As a new article of manufacture, a hollow inwardly-flaring brick tuyere for melting-furnaces, said tuyere being' made Of longitudinally-divided sections, substantially as and for the purposes described.

3. The co1nbination,with a melting-furnace, of a sectional tuyerecomposed ofthe inwardlyconcave bricks 5 5, set in the furnacewall,one abov'e the other, and similar bricks, 6 6, set Outside of the bricks 5 5, all of said bricks together constituting a continuous tuyere, substantially as and for the purposes described.

In testimony whereofl have hereunto set my hand this 14th day of April, A. D. 1887.

y ROBERT O. YOUNG.

Vitnesses:

GEO. SMART, HARRY BARNEs.