US398443A

US398443A - Furnace for heating metals

Info

Publication number: US398443A
Authority: US
Publication date: 1889-02-26
Anticipated expiration: 1906-02-26

Description

2 Sheets-Sheet 1.

(No Model.)

0. PAYEN.

FURNACE FOR HEATING METALS.

Patented Feb. 26, 1889.

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FURNACE FOR HEATING METALS.

No. 398,443. Patented Feb. 26, 1889,.

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UNITE STATES PATENT EEicE.

CLEMENT PAYEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE ELECTRIC STORAGE BATTERY COMPANY, OF GLOUCESTER CITY, NEW

JERSEY.

FURNACE FOR HEATING METALS.

SPECIFICATION forming part Of Letters Patent NO. 398,443, dated February 26, 1889.

Application filed January 7, 1888. Serial No. 260,041. (No model.)

To all whom it may concern.-

Be it known that I, CLEMENT PAYEN, a citizen of the Republic of France, but now residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Furnaces for Fusing and Melting Metals, &c., of which improvements the following is a specification.

My invention relates to an improved furnace for fusing or melting metals or the salts of metals, such as lead, zinc, iron, or other substances or materials.

This invention consists of a furnace provided with a chamber in which a crucible is pivotally supported, and the dome-shaped top of said chamber forming the cover of the crucible when in position for receiving material to be treated, the crucible being operated by a lever from the outside of the furnace, whereby it may be readily tilted for discharging the fused or melted mass into a suitable receptacle for further treatment.

My invention further consists of certain de tails of construction or combinations of parts of the furnace, to be hereinafter fully described.

In the accompanying drawings, forming part hereof, Figure 1 is a vertical central section through my improved furnace, showing the crucible pivotally supported within a chamber having a dome-shaped top and said crucible being operated by means of a lever from the outside, and Fig. 2 is a horizontal section on the lines 2c :r and y y of Fig. 1.

Referring to the drawings for a further description of the invention, A is the furnace, constructed of brickwork or other suitable material and of any desired form or shape.

B is a dome-shaped arch, constructed of brick in the upper part of the furnace, and said arch forming the cover of the crucible when in position to receive material to be treated. The arch B is supported upon an annular ring, I), which is held in position by means of columns C, arranged at suitable distances apart and mounted on a ring, (2, secured in the brick-Work, and the whole forming the chamber of the furnace.

D is the grate, of any ordinary construction, supported in position in the lower part of the furnace on metallic supporting-rims dand d.

D is a short horizontal chute or aperture closed from the outside by a door, (Z through which chute, when the door is opened, the fuel is admitted to the grate for firing the furnace.

D" is an aslrpit beneath the grate, closed from the outside by means of a door, 05'.

F is the draft-flue, through which the fumes, gases, and smoke are conveyed tothe chimney F and thence into the open air.

G is a feedinghopper extending downward into the brick-work of the furnace at preferably an angle thereto, and having a removable stopper, g.

H is a vertical sliding door, made of iron or other m a terial, and having at each end a flange, h, with a turned-in lip, h, as shown in Fig. 2, which door H fits snugly into the recessed frame I-l, secured to the front of the furnace. The door H is raised and lowered by means of a rope or chain, 71 passing around a pulley, h or by any other ordinary welLknown means, to allow of the discharge of the treated material when the crucible has been tilted by means of a lever, to be presently described.

I is a metallic semicircular pot having an inner rim, t', formed integral therewith and extending almost entirely around the upper periphery thereof, and mounted on and secured to this rim by means of bolts 7 and nuts 2' is a metallic ring, 1' The pot I is journaled in. trunnions 4;, supported on the metallic ring 0. One of the journals 2' held in the trunnions i is prolonged laterally, and to the extremity of which is attached a lever, 2"", operated from the outside of the furnace, to cause the discharge of the material treated in the crucible J. The crucible J is constructed, preferably, of porcelain, and around the exterior surface of which is provided a layer, j, of amianthus, asbestus, or other suitable material, and in the space between the layerj and the metallic pot I is inserted a layer or film of sand, j

The exterior and interior surfaces of the porcelain crucible should be perfectly smooth, and maintained in that condition free from fracture or indentations, in order that in the expansion thereof when heated up breakage maybe entirely obviated. The layer of sand between the covering of amianth us or asbestus surrounding the porcelain crucible J and the metallic pot I performs the function, in a satisfactory manner, of an elastic cushion to compensate for whatever expansion of the crucible may take place when heated and the fusing or melting operation is going on.

Having particularly pointed out the special features of my improved furnace, I will now describe, briefly, the mode of operating the same for the fusing or melting of metals or other substances. The furnace being tired in any ordinary manner, the flames therefrom will be drawn in an upward direction by the chimney-draft around the metallic pot 1, heating up the'same, as well as the crucible J The stopper 9 ot the metallic chute G may i then be drawn out and the material to be treated or fused charged into the crucible J through this chute G, and when sufficiently charged the stopper 9 will be again fitted into the mouth of the chute, and the operation continued until the material undergoing treatment has reached a liquid or molten state or condition, when it may be readily discharged from the crucible J into any suitable receptacle for further treatment by the attendant in charge first raising the vertical sliding door H by means of the handling device In,

attached to the rope or chain hiwhich passes over the pulley its, and then drawing the lever i in to a horizontal position, and thereby causing the crucible J to occupy the position as indicated in dotted lines in Fig. 1.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The herein-described furnace provided with a chamber having an arched roof, an incased crucible piy otally supported within said chamber, and said roof forming a cover for said crucible, and a lever operated from the outside of the furnace for tilting said crucible, substantially as and for the purposes set forth.

2. The herein-described furnace provided with a chamber having an arched roof, a chute extending downward into said chamber, a crucible pivoted to trunnions supported within said chamber, and a lever actuated from the outside of the furnace for tilting the same, substai'itially as and for the purposes set forth.

In witness whereof I have hereunto set my hand in the presence of two subscribing wit nesses.

JLEMENT PAYEN.

\Vitnesses:

CHAs. HART, THOMAS M. SMITH.