US1290242A - Melting and pouring furnace. - Google Patents

Description

I. KORMUTT. MEL TING AND Poumm'c FURNACE.

APPLICATION FILED MAY 4. 1918'.

4 SHEETS-SHEET I.

Patented Jan. 7, 1919.

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I. KORMUTT, lMELTING AND POURING FURNACE APPLICATION FILED MAYAf-IQUZ.

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l. KORMUTT.

MELTING ANDIPOURING FURNACE. APPLICATION nuzn MAY 4. 1918.

1,290,242. Patented Jan. 7,1919.

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MELTING AND PDURVING FURNACE.

APPLICATION man MAY4. 191a. 1,290,24Q, Patented Jan..7,1919.

IGNAC KORMU'IT, OF CHARLEBOI, PENNSYLVANIA.

examine AND rename rnnnaen.

j gggg gdg specification of Letters Patent. Patented an, 7, 1919.

application filed Ma 4,1912. sen-a1 no. 232,641.

To aZZ whom it may concern:

Be it known that I, Ienao KonMn'r'r, a c1t1zen of Austria-Hungary, residing at Charleroi, in the county of Washington and State ot'vPennsylvania, have invented new and useful Improvements in Melting and Pouring Furnaces, of which the following is a specification. f

This invention relates to melting and pouring-furnaces especially adapted to be used for melting and pouring lead and sinu lar metals and iti consists in the novel features hereinafter-described and claimed.

An object of the invention is to provide a furnace of the ,character stated having means for gathering the poison gases which emanate from the material during the process of melting andpouring, there also being means for conveying the said poison gases away from the furnace thereby preventing them from coming in contact with the operalter and eliminating the dangers and damage incident thereto.

Withth's object in view the furnace comprises in a unitary structure a fire box having Y an oven posltioned at one end thereof the saidoven being adapted to contain the mat'er1alwh1cl1 istnelted. A pourmg chamber is located ad acent the fire box and a ladle is pivotally moimted'therein. A trough is provided for conveying the molten metal from the oven to the ladle and means are provided for moving the trough. Aflue connnunieates with the melting chamber at points above the ladle and the products of combustion are adapted to pass from the the box throughthe melting chamber over the ladle and up through the fine. The furnace is provided with suitable air pipes adapted; to lead air into the sameto facilitate combustion and thereby complete the consumption or the fuel which is used for heating purposes.

In the accompanying drawings Figure 1 is a front view of the furnace.

Fig. 2 is a "rear view of the same.

Fig. 3 is a longitudinal sectional view of the same tut on the line 3-3 of Fig. 1 with the lower door omitted.

Fig, 4 is a similar view out on the line 4----& of Fig. 1.

l ig. 5 is a transverse sectional view of the furnace cut on the line 5-5 of Fio. 7.

Fig. 6 is a detail sectional view out on the limb-4i of Fig. Z.

on the line 77 of Fig. 4.

Fig. 8 is a detail sectional view out on the line 8-8 of Fig. 7.

The furnace comprises a fire box 1 of con ventional form having a grate 2 located therein in a usual manner. An oven 3 is mounted upon the fire box 1 at one end thereof and the said oven is provided at one end with a vertically slidable door 4 and a horizontally slidable door 5. Any suitable means may be provided for sliding these doors or they may be moved by hand if desired. A false bottom 6 is tiltably mounted bymeans of ears 6 journaled on arod 6? in the oven 3 and is provided at one end with a lug 7 adapted to normally rest within a notch 7 in the upper edge of the door 5 when the said door is at a closed position at the end of the oven as indicated in Figs. 4 and 6. "When the lug 7 is supported by the edge of the door 5 the false bottom 6 is held at a horizontal position as hestshown in Fig. 6 of the drawing. When the door 5 is moved to an open position the false bottom 6 may be swung to an inclined'position as shown by dotted lines in Fig. 6 whereby the material which is supported upon the false bottom 6 may gravitate out of the oven 3 through the opening which is normally closed by the door 5. may be provided for swinging the false bottom 6 or the said bottom may be swung by hand if desired. It will be noted that the forward edge of the false bottom 6 terminates short of the front wall of the oven to provide a space 7' for a purpose to be described.

A melting chamber 8 is located at the side of the fire box 1 and the side wall of the said box is provided with ports 9 which communicate with the interior of the melting chamber. A flue 10 is located at the side of the melting chamber 8 and the adj acent Wall of the said chamber is provided with ports 11 which communicate with the passageways through the said flue.-

A ladle 12 is pivotally mounted in the meltinglchamber 8 below the ports 9 and 10 and a handle 13 isattached to the delivery end portion of the said ladle. Any suitable means may be provided for swinging the ladle or the ladle may be swung by hand if desired.

A spent 14: is slidably mounted below the Fig. 7 is a horizontal sectional view out bottom of the oven 3 and the said oven is provided in its bottom with an opening through which the molten metal may flow from the even into the spout 14. When the spout 14 is projected through the position shown in Figs. 7 and 8 of the drawing the molten metal which enters the same will flow along the spout and fall into the ladle 12. When it is not desired to discharge the molten metal from the oven it is moved, by mechanism to be'hereinafter described, so that its upper portion formed as a plate 1-1 will be disposed beneath the opening 15 in the bottom of the oven and serve as a door to prevent molten metal from passing into the spout. The ladle 12 is normally maintained at a horizontal position consequently it will retain the molten metal while the products of combustion'from the fire box are passing over the ladle and out through the flue. Consequentlythe metal which is in the ladle is maintained in a molten condition. When the ladle is tilted the metal may flow from the same.

The spout 14 is provided at ,its underside with a series of teeth 16 and a pinion 17 meshes with the said teeth 16. The pinion 17 is mounted upon a crank shaft 18 which passes through the side of the fire box. It is apparent that by rotating the shaft 18 the spout 14 may be projected or retracted with relation to the oven andthe fire box. Therefore when it is desired to tilt the ladle the spout 14 is withdrawn from over the upper edge thereof and the said ladle may be readily tilted whereby the molten metal contained thereinmay be poured. The melting chamber Sis open at its end below the ladle 12'consequently the molds or flasks may be moved under the ladle through one end of the melting chamber and removed from un der the same by passing them out at the opposite end of the melting chamber. An air pipe 19 is arranged to discharge blasts of air in the fire box and melting chamber. The blast which enters the fire box passes in below the grate 2 as best indicated in Fig. 5 and the blast which enters the melting chamber 8 passes in above the ladle 12. These volumes of air tend to promote combustion and will also serve as means for quickly removing the poison gases from the molten metal and for carrying the same up to the flue.

r The metal to be melted is placed upon the false bottom 6 and the said bottom is moved to a horizontal position and the doors at. the end of the oven are closed. As the metal melts it will run over the lower-edge of the false bottom through the previously described space 7 and along the true bottom of the oven and through the opening 15 and along the trough 14 into the ladle 12. Any material which should remain upon the false bottom and should not be melted may be removed by swinging the false bottom to an inclined position and by using a scraper or suitable implement upon the said material.

From the foregoing description taken in conjunction with the accompanying drawings it will be seen that a melting furnace of durable structure is provided and that the same will effectually remove the noxious and poison gases from the metal during the time that it 1s being melted and also at the time that it is being poured from the ladle into the molds or flasks and consequently the injurious effects ofsuch poison gases to the workmen who are compelled to attend the furnace are eliminated.

Having thus described the invention what is claimed is:

1. A melting furnace comprising a fire box, an oven .located thereon, a melting chamber located adjacent the fire box and communicating therewith, a flue located adjacent the melting chamber and communicating therewith, a ladle tilt-ably mounted in the melting chamber, a spout slidably mounted and adapted to convey metal from the oven to the ladle and means for sliding the spout.

A melting furnace comprising a fire box, an oven located thereon, a false bottom located in the oven and being tiltably mounted, doors provided upon the even. one

of the said doors adapted to serve as a support for holding the false bottom at a horizontal position, a melting chamber located. adjacent the fire box and communicating therewith, a flue located adjacent the melting chamber and communicating therewith, a ladle tiltably mounted in the metal in the melting chamber and a movable spout adapted to convey molten metal from the oven to the ladle.

In testimony whereof I aflix my signature.

IGNAC KORMUTT.

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