US316723A - Chaeles a - Google Patents

Description

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o. A. BARTSGH.

FURNAGB POR ROASTING COPPER AND QTHER 033s. No. 316.723. Patented Apr. 28,1885.

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. Z-Sheets-Sheet 2. C. A. BARTSCH. FURNAGB POR RUASTING COPPER ANDv UTHBR DRES. No. 316,728. Patented Apr..28, 1885.

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FURNACE FOR` ROASTING COPPER AND OTHER ORES.

SPECIFICATION forming part of Letters Patent No. 316,723, April 28, Application filed January 5, 1885. (No muilcl.) I

.To all whom it may concern.-

Be it known that I, CHARLES A. BnETsCH,

- a citizen of the Empire of Germany, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Furnaces for Roasting Copper and other Qres; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to furnaces for roasting copper and other ores, but is more especially intended as an improvement upon the construction shown in Letters Patent granted to Peter Spence, N o. 248,521, October 18, 1882, and has for its object to provide a device for use in this and similar furnaces, whereby the whole body of oremay b e exposed to the action of the rakes used for stirring and distributing the same upon the furnace-beds, or, in other words, to doaway with the dead-point at the end of the bed where the ore becomes piled out of reach of the rakes; and with these ends in view my invention consists in the details of construction and combination of elements hereinafter fully explained, and then specifically designated by the claims.

In order that those skilledin the art to which my invention appertains may more fully understand its construction and operation, I will proceed to describe the same in detail, referring by letter to the accompanying drawings, forming a part of this specification, in which- Figure 1 is aside elevation of afurnace with a portion ofthe side broken away to show my improvement, and Fig. 2 a plan view also showing my invention; Fig. 3, an enlarged view of a journaled scraper; Fig. 4, a vertical section taken through a tier of rake-rods, and Fig. 5 a Central vertical section through a tier of scraper-rods.

Similar letters denote like ures of the drawings.

A are rackbars which receive motion from the cog-wheeIsB (but one being shown in the drawings) and impart it to the truck C. To this truck are secured the rake-rods D,which extend inside the furnace and operate the rakes. Between each alternate set of rakeparts in all iigrods I place twoother rods, E, which also extend inside the furnace, but are not rigidly attached to the truck-frame. Their inner ends are bent downward at right angles. On these rods E, I secure two tappcts, F F, by means of setscrews.

G are rakes which are secured to the ends of the rake-rods. and are provided with rollers G', which latter travel on tracks G, as will be clearly seen at Fig. 2. Back ofthe rakes, and journaled in lslide-blocks H, which also run on tracks G, are Scrapers I, consisting of a metal plate, as shown at Fig. 3.

Attached to the rake-rods D near the rake are trips J, the use of which will be presently explained. Y

Secured to or formed integral with the rackbars A, at their outer ends, are collars or rings A', through which pass rods K, the outer ends of which are secured to the truck M,simi lar in construction to the truck C. O11 these rods are secured tappets N N by means of set-screws O.

To the truck M are secured rods P, which enter the furnace on every other floor or the floors which the rods E do not occupy. The innerends of these rods are bent down at right angles in the same manner and for the same purpose as the said rods E.

Q is a scraper constructed in the same manlner as the scraper I, and journaled in like blocks, and to the rake-rods on the floors ou which these scrapers are are secured trips similar to the trips J, but pointing in the opposite direction, for the purpose ot' upsetting and backing the scraper.

From the foregoing description the operation of my improvement will be obviously as follows: The wheels B being revolved will impart longitudinal motion to the rackbars A, which will cause the truck C to travel backward or forward, as the case may be, carrying with it the rake-rods D, butnot the scraperrods E. Vhen the truck is traveling inward, and has nearly finished its stroke, it will come in contact with the tappet F on the rods E, and from that point to the completion of its inward stroke will carry the saidscraperrods with it. The bent ends of the scraperrods when moved inward will come in contact with the scraper I and advance it along the floor, pushing before it any accumulation of ore to within reach of the rakes on their backward stroke, which is accomplished by IOO ` canbe'no dead-point, since the ore can never a reversing of the wheels B. A s the rakes l travel backward the trip J comes in contact with the lower edge of the scraper I and turns the latter on its journals about oneeighth of a turn, and then carries it back to its original position, the rods E having been previously returned by the truck-frame C striking against and moving the tappets E. The dead-point on each floor of the furnacethat is to say, the point where the ore accumulates out of reach of the rake-is the end at which the ore enters the said ioor from the Hoor above, and as this takes place at the opposite ends of the alternate iioors it is necessary to place Scrapers at the opposite end of the furnace on the iioors not occupied by the scraper I, and to operate them just reverse of the'latter, which is accomplished as follows:` When the truck C has advanced inward,the o re on'some of the floors will havebeen pushed into the openings, while on others the ore is vpushed away from the openings, whence it is returned Within ther'eldof action of the .rakes by the Scrapers, which areI operated bythe inward movement'of the truck M. In-'this' manner the ore'is' thoroughly raked back and'forth, while it will be readily understood that there get back of the Scrapers.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-v l; In an ore-roasting furnace, the combination,with the'reciprocating rakes, of independ- `ent Scrapers journaled in4 sliding blocks, 'and r scraper-rods adapted to push said scrapers forward, whereby the accumulated ore is placed within the field of operation of the rakes, substantially as set forth.

2. In an ore-roasting furnace, independent 4o scrapers journaled in sliding blocks arranged on the floors of the furnace at the so-called dead-points 7 thereof,beyond the field of the rakes, in combination with means for operating said Scrapers, substantially as shown and described.

3. In combination with the rakes of an oreroasting furnace, the sliding blocks having Scrapers journaled therein, trips secured to the rakes and adapted to upset the Scrapers, the scraper-rods provided with tappets, as described, the trucks, and means for imparting Vmotion theretosubstantial1y as set forth.v

4. The combination of the rakes G, trips J, scrapers I Q, journaled in sliding blocks H, trucks C, carrying rakerods D and scraperrods E,tappets F and F,secured on the scraperrods, truck M, carrying rodsvl?, rods A, eX- tending inward fromv the sides of the truck C, rods K, extending inward from thetjruck Mand passing through collars A on the rods A, and tappets N N', secured on rods K, Vsubstantially as and for the purposes set forth and specified.

In testimony whereof I affix 'my' signature in presence of two witnesses.'v

CHARLES A. BARTSCH.

Witnesses:

S48. WILLIAMsoN, WALLACE A. SMITH.

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