US1028150A - Electrode-collar for electric furnaces. - Google Patents

Description

E. R. TAYLOR. ELEGTRODB COLLAR FOB. ELECTRIC PURNACES.

APPLICATION FILED JANJ?, 1911.

1,028,150, Patented June 4, 1912.

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E.. R. TAYLOR. ELBGTRODE COLLAR FOR ELECTRIC FURNAGES.

APPLICATION FILED mlm?, 1911. 1,028, 1 50. Patented June 4, 1912.

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a f/f/W/ il z@- 024 ,0' b w Z5 l5/QQ' Z ffm/W x w anni/wut EDW`ARD '1%. TAYLOR, OF PENN YAN, NEW YORK.

`ELECTR0132E-COIILAIR, FOR FECTRIC 'FURNAGES Specication of Letters Patent.

Patented June 4, 1912.

Application led January 17, 1911. Serial No. 603,059.

To all whom; t may concern:

Be it known that I, EDWARD R. TaYLoR, a citizen of the United States of America, and

a resident of Penn YYan, in the State of' New York, have invented a new and useful Improvement in Electrode-Collars for Electric Furnaces, of which the following is a specification.

ThisV invention relates to those electric furnaces in which endwise movable stemless electrodes, square in cross section, are employed; especially horizontal or inclined electrodes, hereinafter referred to in common as horizontal electrodes.

Primarily this invention is additional to an improvement in electric smelting furnaces set forth in my previous specification forming partv of an application for United States Letters Patent filed July 7, 1910, and allowed' July 27, 1910, Serial No. 570,836; (Patent No. 985,226, dat'edl February 28, 1911) hereinafter referredto as mycompanion specification.

The leading objects of the present inven-l tion are to provide for closing the electrodeadmitting opening in the furnaceA 'shell around each electrode against 'the entrance of air and the escape of gas; and to provide, if desired, for the transmission of the electric current by the same means.

Other objects will be set forth in the general description which follows:

Two sheets of drawings `accompany -this specification, as part thereof. v

Figures 1- and 2 are respectively a central longitudinal section anda face view of anA electrode collar constructed in accordance with the present invention; Figs. 3 and 4 are like views illustrating a. second species of the same invention; Figs. 5 and 6 are like views illustrating a thirdspecies;

Figs. 7 and 8 are like views illustrating. a fourth species; and Fig. 9 is a fragmentary section in a diagonal plane on the line as, Fig. 8. i

Like reference characters refer to like parts in all the gures.

-A stemless electrode of carbon, square in cross section, and periodicallymovalle endwise by suitable means, to take up wear, is represented .at a; the iron shell of an electrlc furnace at b; metallic electrode collars at c, c, c3 and of, respectively; and an interosed layer of suitablel insulation'l at d.,

ach of saidA electrode collars includes asulicient number of movable sections of different patterns or proportions, represented respectively at 1, 2 and 3; means for tightening such sections and forr'etr'acting t-he same to free the electrode, in the form of screws, 4, parallel with the electrode; an'd a rectangular frame, 5, which may be an iron casting, constructed to interact with said sections, and to be iXedly attached to thev furnace shell by insulated bolts, represented by bolt holes, 6, in' the face lviews, and further insulated from the shell by said insulation d. The movable sections 1, 2 and 3,

jointly, in each species, are adapted to maintain the required contacts with the several sides and angles of the electrodeva, with the frame 5 and with each other, under different adjustments.

. `In each species arectangular electrode admitting opening, 7 is common to the'furnace shell b, the collar frame and the interposed insulation d; the frame 5 is fur` ther constructed with a deep face recess, 8, having four sides parallel with those of said opening, 7 and with the sides of the electrode a; screw sockets, 9, are provided to interact with the several screws 4; the several movable sections 3 .which contact with said screws are held to said recess sides or to corresponding walls of the face recess by dovetailed guides, 10, so as to move parallel with the electrode; said movable sections 3,`,

hereinafter referred to asithe outer sections, and the inner movable sections 1, and 2, re-

spectively, are constructed with wedging in-I `eled collar, 11 or 11', within said face recess,

to make an air and gas-tight closure around ,the electrode admitting opening, the bevels being so formed as to loosen said sections should they be carried with the electrode in the feeding operation represented by the arrow a', Fig. l; the outer sections' 3 are provided on the back ofeach at its outer lend with a rigid lug 12 or a pair of such lugs; each of the screws 4 is constructed with a squared outer end, and with parallel collars 13 and 14, Fig. 9, adjacent thereto to interact with said lugs 12; and a cooling chamber, 15, is conveniently formed in the frame 5 around said face recess 8 to provide for cooling the movable sections 1, 2 andy and the screws 4.

In the species represented by Figs. '1 and 2 there-are fourl of each of said 'movablel outer sections 3 each interact with a pair" of thescrews 4; and they beveled collar 11. within the. face recess 8I is integral with the back of the frame 5.

In the species represented by Figs. 3 and 4, the electrode collar, c2, includes eight of l the inner sections land 2; four of the same being side pieces 1, and four corner-embracing pieces 2; there are twelve outer sections V3, three at each side of the face recess 8,

with a screw 4 to each outer section; and two outer sections interact with each cornerembracing piece 2 ofVY the inner sections so as to provide a better contact with the electrode corners or angles. Otherwise -the construction may be the same as already described.

In the species represented by Figs. 5 and 6, the electrode collar, c3, includes twelve of the inner sect- ions 1 and 2, having adjoining bevels, the planes of which are diag-- onal to the electrode at its several angles, and elsewhere at right angles and parallel to such diagonal bevels, as shown in Fig.I 6. Otherwise the construction may be identical with that of the first species, Figs. 1 and 2; including four outer sections 3, and eight of the screws 4.

In the electrode collar 0*, represented by Figs. 7, 8 and 9, there are'four of each of the movable sections 1, 2 and 3, vand the inner sections consist of side pieces 1 and corner pieces 2, as in the irst species, Figs. 1 and 2; but the faces of the corner pieces 2 are at right angles to the diagonals of the electrode, and contact with matching bevels on the side pieces; the outer sections 3 are` arranged behind the several corner pieces 2 las above described, and within corner extensions of the face recess 8; the screws 4 are reduced to four in number; the dovetailed lguides y10 are located within such corner extensions, as shown in dotted lines in Figs.= 8 and 9, and the beveled co1- lar, 11', is a separate partto facilitate giving it any required bevel at the inner end of each of the movable sections or `such as require this provision. 4'

The electrode collar, in any of its formsI may, if desired, be adapted for the connection of the current conductors in the manner set forth in said companion specification forming part of said patent application Serial No. 570836, (Patent No. 985,226) or in any known or improved way; each of the movable parts may have more or less movement as required, and otherlike modi- The interior of the collar at and in the vicinity of the beveled- collar 11 or 11 may be coated with a suitableclay wash immediately before tightening the movable sec-y tions to insure air-tight andV gas-tight joints; and if the collar is'to be used for the trans- 'mission of the current tothe electrode, the

sides of that portion of the electrode which is to be embraced by the collar may be coated -with carbon cement to insure the required perfect cont-act at all points.

Having thus described said improvement, I claim as my invention and desire to patent under this specification: l1. The combination with astemless furnace electrode rectangular in cross section, especially a square horizont-al electrode, of an' air-tight and gas-tight electrode collar adapted to be iXedly attached to the furnace and composed of a frame constructed with an electrode-admitting opening, and a face recess surrounding said opening, movable sections arranged within said recess and longitudinally with reference to the'elec- `electrode, square in cross section; said collar having, in combination, a metallic frame constructed with an electrode admitting opening and a face recess surrounding said opening, inner movable sections within said Irecess constructed and arranged to contact with the electrode and with each other and having longitudinal wedging -inclines on their backs, endwise movable outer sections having wedging inclines in contact with 'those of'said inner sections, and means for moving said outer sections endwise to tighten or loosen said inner sections around the electrode.

3. An electrode collar adapted to be attached to and insulated vfrom the shell of an electric lfurnace, and to interact with an `electrode square in cross section; said collar having, in combination, a metallic frame constructed with an electrode admitting opening and a face recess surrounding said opening, movable sections within said recess constructed and arranged to contact vwith the electrode and with each other to prevent the entrance ofair and the escape of gases through said opening, said sections including endwise movable wedging sections, and said frame and wedging. sections being constructed-with the respective members of a dovetailed guide for each of theseV sections, and means for moving these sec-y' tions endwise to tighten or loosen the movable' sections of the collar as required;

4. An electrode collar adapted to be attached to and. insulated from the. shell of' an electric furnace, and to interact with an electrode square in cross section; said collar having, in combination, a metallic frame constructed `with an electrode admitting opening and a face recess surrounding said opening, inner movable sections withinsaid recess constructed and arranged to contact with the electrode and with each other and having longitudinal wedging inclines on their backs, endwise movable outer sections having wedging inclines in contact with those of said innerrsections, said frame and outer'sections being constructed with the respective members cfa dove-tailed guide for each lof the outer sections, and means lfor moving these outer sections endWise to tighten or loosen said inner sections around the electrode.

5. An electrode collar adapted to bey attached to and insulated from the shell of an electric furnace, and to interact with an electrodesquare in cross section; said collar having, in combination,a metallic' ai'e constructed with an .electrode :admitting opening and a face recess surrounding said opening, and provided within said recess and aroundl said opening with a beveled collar, inner movable sections within said, recessconstructed and arranged to contact with the electrode and with each other and having longitudinal inclines on their backs and bevels at. their inner ends, endwi'se movable outer sections having longitudinal inclines in contact with those of said in ner sections, and means' for moving these-,outer sections endwise to tighten or loosen lsaid inner sections around the electrode; said' bevels of the innersections being constructed and arranged to contact with said beveled collar around the electrode admitting opening. c

-6 .`An electrode collar adapted to be attached to and insulated from .the shell of an electric furnace, and to interact with an electrode square in cross section; said collar having, lin combination, a metallic frame constructed -with an electrode admitting opening, a face recess surrounding said openlng and screw sockets inthe faceof the 'frame arond said-recess, movable sections within said recess constructed and arranged to contact with the electrode and with each other and including endwise movable wedging section'sfsaid frame and 'said wedgingsections being constructedwith the respective members of a dovetailed guide for each of these sections parallel to, the respective screw, sockets, and screws tted to saidy sockets and constructed and arranged` to operate said wedging sections as required.

7. An electrode collar adapted to' be attached to and insulated from the shell of an electric furnace, and to interact withlan electrode square in cross section; said collar having, in combination, a metallic frame constructed with an elect-rode admitting opening, a face recess surrounding said opening and screw sockets in the .face of Vthe frame parallel to the electrode, inner movable sections within said recess constructed and arranged to contact.- with the electrode and with each other and having longitudinal wedging inclines on their backs, endwise movable outer sections having wedging inclines in contact with those of said inner sect-ions, said frame and outer sections being constructed with the respec tive members of a dovetailed guide for each of these outer sections, and screws fitted to saidsockets; said outer sectionsand screws being constructed and arranged to coperate in tightening or loosening said inner sections aroundV the electrode.

8. An electrode collary adapted to be attached to and insulated 'from the shell of an electric furnace, and `to interact withan electrode square in cross-section; said collar having, in combination, a metallic frame constructed with an electrode admitting opening and a face recess surrounding said opening, land provided within said recess and around said opening witha beveled collar, operating screws fitted to said sockets,

inner movable sections within said recess constructed and arranged to contact with the electrode and with each other and having longitudinal'wedging inclines on their backs and bevels attheir inner ends, the latter constructed and arranged to contact with said beveled collar, and endwise movable outer sections having longitudinal wedging inclines in'contact with those of said inner sections. and constructed and arranged to cooperate with`said screws in tightening or loosening said inner sections around the electrode.

9. An electrode collar adapted to be attached to and insulated from the shell of an electric furnace, and to interact with an electrode square in cross section; said collar having, in combination, a metallic frame constructed with an electrode-admitting openingand a face recess surrounding said opening, movable sections within said recessconstructed and arranged to contact `with the electrode and with each other and including side pieces and corner pieces constructed and arranged respectively to conl tact with the several sides of the electrode and withrits angles, andmeans for operat- ,ing said sections'to tighten or loosen the same around the electrode as required.

10. An electrode collar adapted to be. at-

"tached to and insu-lated from .the shell'offan 1 electric furnace, andto interact with an electrode square in cross section; said collarv having, in combination, a metallic frame constructed with an electrode admitting opening and a face recess surrounding said opening, inner movable sections within said recess constructed and arranged to contact with the electrode and with each other and including side pieces and corner pieces constructed and arranged respectively to contact with the several sides of the electrode and with its angles and having longitudinal Wedging inclines on their backs, endwise movable outer sections having wedging inclines in contact with those of said inner sections, said frame and outer sections being constructed with the respective members of a dovetailed guide'A for each of these outer sections, and means for moving these outer sections endwise to tighten or loosen said side pieces and corner pieces around the electrode.

l1. An electrode collar adapted to be attached to and insulated from the shell of an electric furnace, and to interact with an electrode square in cross section; said collar having, in combination, a metallic frame constructed with an electrodeadmitting opening, a face recess surrounding said opening and screw sockets in the face of the frame parallel to the electrode, operating screws fitted to said sockets, innermovable sections within said recess constructed and arranged to contact with each other and including side pieces and corner pieces con.

structed and arranged respectively to contact with the several sides of the electrode nal Wedging inclines on their backs,and

endwise movable outersections having lons gitudinal wedging inclines in contact with those of said side pieces and corner pieces and .constructed and arranged to coperate with said screws in tightening or loosening the inner sections around the electrode.

12. An electrode collar adapted to be attached to and insulated from the shell of an electricfurnace, and to interact with an electrode square in cross section; said collar having, in combination, a metallic frame constructed with an electrode-admitting opening, a face recess surrounding said opening and screw sockets in the face of the frame parallel to the electrode, operating screws fitted to said sockets, inner movable sections-within said recess .constructed and arranged to contact with each other and including side pieces and corner pieces constructed and arranged respectively to contact with the several sides of the electrode and with its angles and having longitudinal wedging inclines on their backs, and end- Wise. movable outer 'sections having longitudinal wedging inclines in contact with those of said side pieces and corner pieces and constructed and arranged to coperate with said screws in tightening or loosening the inner sections around the electrode; said frame and outer sections being further constructed with the respective members of a dovetailed guide for each of the outer sections parallel to the respective screws; substantially as hereinbefore specified.

EDWARD R. TAYLOR.`

Witnesses;

H. J. MAcNAUGH'roN, H. P. MORGAN.

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