US1082196A - Electric furnace. - Google Patents

Description

, A. HELFENSTEIN.

ELECTRIC FURNACE.

APPLTCATYON FILED APR.1C.1913 l ,O82,1 96, Patented Dec. 23, 1913.

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UNITED sTATEs PATENT OFFICE.

ALQIS HsLrn'n'srnm, or man, lineman-Rumour.

ELECTRIC FURNACE.

To all whom it may concern:

Be it known that I, Anois HELFENSTEIIQT,

a citizen of the Swiss Republic, residing at 50 Bastiengasse XVIII, Vienna, Austria- Hungary, have invented a new and-use ful Improvement in Electric Furnaces, of which the following is a specification.

My invention relates principallyto improvements in that classof closed electric furnaces with upper electrodes in which charging chutes are disposed above joint hearths so the charging inaterial forms the shortest electric connection between the electrodes.

The invention consists of the arrangement of the chutes between the upper airs of thevertical electrodes whereby rom these chutes the charging for and through the chutes-the removal of the gases from the two adjacent electrode chambers is reflected.

The intermediate spaces formed by the charging-chutes, and through which the electrodes pass, are utilized, for charging purposes; the openings for the electrodes being tight, and the electric meltingregicn in the effective zone of the electrodes isreadily and quickly accessible, without interfering with the'continuity of charging.

the material or of removal of the gases. In order to serve both classes of chutes from the same plattorm, special feed-tubes or 1 troughs are arranged suitably in these intermediate spaces between the charging chutes.

i In the annexed drawing, in which the object of the. invention is shown conventionally, Figure 1 is a three-phase furnace with "three vertical electrodes, partly in elevation, partly in lengthwise section. Fig. 2 is a plan of the device; and Fig. 3 is a cross section thereof. v

A. is the electric furnace, B B5,, B -IB, charging chutes arranged above along the entire width of the furnace, which form the hoppers C C U for the insertion of the electrodes.

E E E are the Vertically-hanging elec trodes.

,Churging the furnace effected in theusual manner through the hoppers D,,'D,,,D D Chargingof the hoppers C C C is effected through separate pipes G G G G G G The electrode'hoppers C C C taper downward; andfor the insertion and F21 F3: F0

.he chargin -chutes have lateral man Specification of Letters Patent.v Patented Dec, 23, 1913, Application filed April 18,. 1913. Serial No. 761,686.

regulation of the electrodes have only a.

small slot, which permits the passage of but little material. Thus the openin for the insertion of the electrode will be ept gastight, and thefgases compelled to pass off through the charging-chutes. These gases.

can be led off in the usual manner through the regular ofi-take, or exhausted laterally from thechargingchutes by the pipes F holes M,, M, t rough which the charging can be observed as it takes place, and when necessary the operations in t lated (Fig. 3).

. Where the gases e furnace reguhaust-pipes -F,, F, terminate inthe collecting-p'pes S 5,,- which lead off -the-gases for further use,

What is claimed is; 1., In a device ofthe kind described, a

ai efeshausted laterallyfro'rn the charging chutes (Fig. 2) the exhearth, a series of charging chutes arranged above said hearth, a series of electrodes 'sus'-' pended above said hearth and alternating with said chutes, and means to charge mate-' rial'into the spaces between said chutes and electrodes.

2. In a device of the kind described, a hearth, a series of charging chutes arranged chutes carried by the first mentioned chutes and arranged to charge the spaces between said electrodes and first mentioned chutes.

In testimom whereof Iafli'ig mysignature in presence 0 two witnesses, I

ALOIS HELFENSTEIN. Witnesses:

Anous'r Fuosnn, IGNAZ KNonrALMAoHEn.

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