US294370A - Furnace fo-r heating billets - Google Patents

Description

(No Model.)

. P. H. DANIELS.

FURNAGE FOR HEATING BILLE'I'S Patented Mar. 4, 1884.

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FRED n. DANIELS, or WORCESTER, MASSACHUSETTS.

FURNACE F O-R HEATING B ILLETS.

SPECIFICATION forming part of. Letters Patent No. 294,370, dated March 4:, 1834. g 7

Application filed June 21, 1883.

To (ZZZ whom it .mcty concern.-

Be'it known that I, FRED H. DANIELS, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Furnaces for Heating Billets or Bars for RodRolling Mills; and I declare the following to be a'descriptio'n of my said invention sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, which form a part of this specification.

The object of my present invention is to provide a furnace for heating billets orbars for wire-rod-rolling mills, in which a large quantity of material in long billets can be heated, and from which the billets can be conveniently fed to the rolling mechanism, so that the operations of rolling rods can be effected with greater speed and without delays forthe heating of the billets; also, to afford means in a heating-furnace for permitting access to the interior at the angles of thehearth tofacilitate the placing of the bars in position, or for their more convenient handling or withdrawal from the furnace. These objects I attain by constructing the furnace in the manner shown and described, the particular subjectmatter claimed being hereinafter definitely specified.

In the drawings, Figure l is a sectional plan view of a furnace illustrating the nature of my invention; and Fig. 2 is a part front elevation and part vertical sectional view of the SZLIIIG.

One feature of my improvement consists in making the furnace in V shape, or with two receiving-sections at the feeding end, which sections converge and unite in a manner to permit of thebillets being withdrawn from either feeding-section directly to the rolling-mill through a single door located at the delivery end, thus giving ample opportunity for inserting the 'vention, is not herein shown.

(No model.)

]for gas and air to enter the reverberatory chamber from the heating-chambers D D and E E, the operation of the furnace being in the present instance on the Siemens regenerative principle.

The apparatus for changing the direction of currents, being well known and not of my in- Q The angles a of the furnace are beveled, or made of octagon form, and are provided with doors F, entering the interior through said angles, which doors permit access to the corners of the hearth, and are of great convenience and utility in the handling and placing of the long bars (which are some twenty feet, more or less, in length) in proper position and parallel with each other, since they enable an attendant to guide the billets within the furnace while they are being shoved in by way of the door 13, or to roll the bars to or from one side, as maybe required. These doors F are here shown only at the feed end of the furnace; but the delivery end of a furnace could be made octagon and provided with the doors F in similar manner, if desired.

The construction of a billet-heating furnace for wirerod-rolling mills with doors F at the angles is a feature of my invention.

Ido not desire to confine my invention to a furnace operating. on the Siemens principle,

as it is applicable to furnaces in which other may be constructed of the ordinary materials .and the parts properly braced and supported,

as may be required.

G indicates the slag passages from the hearth A A to the exterior of the furnace.

In the working of the furnace the two Sections A and A may be charged and'drawn in relays, each comprising one-half the area of one of the sections A or A three relays of billets being in the furnace at one time, the fourth relay being fed in while the first relay is being drawn out; consequently the capacity of the furnace is greatly increased over that of an ordinary furnace, and the rolling can be performed at much greater speed without surpassing the capacity of the furnace to deliver thoroughly-heated billets, while the billets are delivered at a single position at the head of the rolling-mill, so as to avoid the inconvenienc c that would attend the use of two indewire-rod-rolling mills, provided with feedingin doors at one end and a discharging-door at 15 the other, and having auxiliary thereto the doors F, located in the angles formed at the divergent ends of the furnace, substantially as shown, and for the purpose set forth.

\Vitncss my hand this 19th day of J une, A. 20

FRED H. DANIELS.

Vitnesscs:

' Curls. I-I. BURLEIGH,

S. R. BARTON.

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