US731991A - Melting-furnace. - Google Patents

Description

PATBNTBD JUNE 23 1903.

W. J. BROWN, DEGD. '1. B. snows, ADIINISTBATOB.

MBLTIN G FURNACE. no MODEL APPLICATION nun 812M. 8, 1900. 2 QEBETFEHEET L me News versus :0, PHGYOLITHO. WASHXNOTOIL n1;

PATENTED JUNE 23, 1903. W. J. BROWN, DEGD. T. 1;. Baown, ADIIKISTBATOB.

MELTING FURNACE. urmommx rum) snr'r. a. 1900,

H0 MODEL. 2 SHEETS-SHEET 2.

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UNITED STATES Patented June 23, 1903.

PATENT OEEIcE.

WILLIAM J. BROWN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO J. WV. PAXSON COMPANY, OFPHlLADELPI-IIA, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA; THOMAS R. BROWN AD- MINISTRATOR OF SAID WILLIAM J. BROWN, DECEASED.

MELTlNG-FURNACE.

SPECIFICATION forming part of Letters Patent No. 731,991, dated June 23, 1903. Application filed September 8, 1900. Serial No. 29.391. (No model.)

To all whmn it may concern:

Be it known that I, WILLIAM J. BROWN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented cer tain Improvements in Melting-Furnaces, of which the following is a specification.

The object of my invention is to so construct a melting-furnace for brass and other metals that it is portable and can be readily tilted, so as to discharge the contents of the furnace without the intervention of ladles and'other appliances. This object I attain in the following manner, reference being had tothe accompanying drawings, in which- Figure 1 is a side View of myimproved furnace. Fig. 2 is a longitudinal sectional view of the same. Fig. 3 is atransverse sectional View. Fig. 4 is a sectional plan view on the line 4 4, Fig. 1; and Fig. 5 is a detached perspective view of the melting-pot.

My improved furnace is especially applicable for melting brass; but it will be understood that it may be used for melting other metals as well.

I preferably use oil a fuel and so construct the furnace that it can be readily placed in position in front of an oil-burner of any desired character, and when it is desired to pour the metal from the furnace the latter can be lifted bodily by a crane and either tipped while suspended from the crane or tipped on its supporting-frame, so as to allow the metal to flow into the molds or other receptacles.

Referring to the drawings, A is the body of the furnace, made in halves A A each half consisting of a metallic casing a, inclosing alining of fire-brick or other suitable materialb and having a flange o, whereby the twohalves are secured together by bolts a passing through the flanges, as shown clearly in Figs. 1 and '2.

Within the furnace A is a melting-pot D, which is of a less diameter than the furnace and has projections d, which extend into recesses formed in the lining of the lower sections A of the furnace, a space 0 intervening between the melting-pot and the lining b, so as to permit the passage of the ignited gases from the combustion-chamber C under the pot D to the space above the pot,as clearly shown in Figs. 2 and 3.

In the upper portion A is an outlet-passage c for the products of combustion, and

a hood B, mounted directly above the furnace, as shown in Fig. 1, communicates with the discharge-flue Orstack, so that the products of combustion and the fumes will pass from the furnace through the passage 0' and through the hood B to the flue.

In one of the projections d of the meltingpot D is a spout d, which communicates'with the spout d formed on the lower portion A of the furnace, and directly above the spout, in the upper section A of the furnace, is an opening which is closed by a door or block E, of refractory material, provided with a handle 6.

At the rear of the furnace is a handle c for the purpose of tipping the furnace and holding the same in the tipped position. A handle 6 maybe used, as shown by dotted lines in Fig. 3.

At each side of the lower section of the furnace, as shown in Fig. 3, are trunnio'ns F F, and these trunnions have two notchesff, the notched portionfof each trunnion resting on a supporting-frame G, as shown clearly in Figs. 1 and 3, while the other notch f is for the purpose of allowing the hooks of a crane to engage the trunn'ions and lift the furnace from said supporting-frame, so that it can be carried bodily to any portion of the foundry-floor and discharged at will.

The oil-burner I is carried by the frame G and is mounted directly in front ofan opening 0 in the lower section A of the furnace, said opening communicatingwith the combustion-chamber C under the melting-pot, so that when the atomized or vaporized oil is ignited in the chamber C it will heat the melting-pot and its contents quickly and evenly, the products of combustion passing around the pot to the upper portion of the furnace and escaping through the passage 0', carrying with them the fumes arising from the molten metal. The amount of heat can be regulated by suitable valves on the burner, and when it is desired to discharge the melting-pot the supply of oil is cut off and the furnace is either tilted while supported on the frame G or engaged by the hooks of a crane and conveyed to any suitable point, so that the molten met-alcau. be poured into molds or other receptacles.

When it is desired to remove the meltingpot or the lining of the furnace, the halves of the furnace are detached, and the pot can then be removed or replaced and the lining repaired. By simply placing the melting-pot back in position in the lower half of the furnace and clamping the upper half to the lower half the melting-pot is secured in position, and the furnace is ready for heating.

I claim as my invention- 1. The combination in a melting-furnace, of a casing, trunnions thereon, and a meltingpot havingprojections, said pot being supported'in'the casing wholly by said projections, one of the said supporting projections having in it a passage, so that when the furnace is tilted, molten metal can be poured from the pot, substantially as described.

2. The combinationin a melting-furnace, of a spherical casing made in two sections, trunnions thereon, means for heating the furnace, a melting-pot having projections on it wherebyit is supported within the casing, the entire bottom surface of said pot being exposed to heat from the heating means, a combustion-chamber under the melting-pot, and

flues formed by the said pot, the projections thereon and the side of the casing, said flues formingcommunication between the combustion-chamber and the space in the upper section of the furnace above the melting-pot, there being an outlet'in the furnace for the products of combustion, substantially as described. v

3. The combination of a melting-furnace made in halves with flanges on each half, a melting-pot having a projecting flange, said flange bearing upon thelower half of the furnace, and thereby providing the sole support for the said pot, a burner for heating the furnace and an opening in the furnace for the escape of the products of combustion, substantially as described.

4. The combination of a melting-furnace made in halves, with flanges on each half, re-

cesses in the lower half, a melting-pot having projections resting in the recesses, a combustion-chamber under the melting-pot, and fines at the side of the melting-pot, substantially as described.

5. The combination in a melting-furnace, of a spherical casing made in two halves, a melting-pot having projections from its sides whereby it is supported from the sides of said casing, a combustion-chamber extending under the entire body of said pot, an openingin the casing communicating with said combustion-chamber, an oil-burner mounted in front of said opening and trunnions for supporting said furnace, constructed to receive handles whereby said furnace may be tilted, substantially as described.

6. The combination of a furnace made in two halves, the Whole being in the form of a sphere having trunnions by which it is supported and on which it can be tilted, said furnace having a casing flanged at the joint of the two halves of the furnace, means. for clamping the said halves together, a lining of refractory material, a melting-pot supported within the furnace and having an outletspout on one side, an opening in the lower portion of the furnace, and'an oil-burner opposite said opening, scribed.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM J. BROWN.

Witnesses:

WILL. A. BARR, J os. H. KLEIN.

substantially as de-

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