US312247A - Yapor burner - Google Patents

Description

(No Model.)

0. V. BEST.

VAPOR BURNER. No. 312,247.

NITE S'ra'rns aren't rrrcn.

VAPOR BURNER.

SPECIFICATION forming part of Letters Patent No. 312,245, dated February 17, 1885.

Application filed December 7. 18:3.

(X0 model.)

have invented certain new and useful Improvements inVapor-Burners, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in vapor-burners, it pertaining more especially to burners of the class shown and described in my previous Patent No.283,956,dated August 28, 1888. The burner forming the subject-matter of said patent had a vertically-arranged niixingchamber, a horizontal supplyduct, an angular heating-plate, B, and an in.- clined passage communicating with the mixing-chamber near the upper end, the angular heating-plate extending upward and inward from the mixing-chamber and then downward toward the supplyduct.

Under some circumstances I have found that burners of another character are necessary, which I produce by combining with the mixing-chamber and the supply-duct a curved shield or heating-plate and horizontally-arranged webs or flanges adapted to retain the heat which tends to be thrown laterally away ft 0111 the retort portion of the burner. I

Figure 1 is a side elevation of a burner enr bodying my improvements. Fig. 2 isa lo ngi tudinal vertical section through the plancof the duct which carries the vapor to the mixing-ehamber. Fig. 3 is a longitudinal vertical section on the plane of the duct which carries the vapor from the mixing-chamber to the heating-jet orifice. Fig. 4 is a side view of a modified form. Figs. 5 and 6 are longitudinal vertical sections of that in Fig. 4. Fig. 7 is a side elevation of a burnerhavinga hood or guard applied to its lower end to prevent the entrance of insects into the mixing-chamber. Fig. 8 shows a modified form of guard. Fig. 9 is a top view of the burner shown in Fig. 4, and Fig. 10 is a top view of the burner shown in Fig. 1.

In the drawings, A represents the supply pipe or duct, which may be of any suit-able character and connected with a reservoir of any preferred style. The supply-duct is filled or packed with corundum,which I have found to be much superior to those materials heretofore inuse for this purpose. Cotton, emery,

and other substances have been employed for this packing; but I have found one or another of various disadvantages incident to each,those avoiding one disadvantage having others incident to it. The corundum which I employ I have found to be more durable andless liable to clog the passage-way than are those with which Iain acquainted that have been heretofore employed. The burner which is secured to the supply-duet A consists of a threaded tubular part or socket, B, a duct, 0, extending downward from the part B to cross duct E, a valve-seat, F, and a mixing-chamber, G, these parts being all preferably cast integrally together, the passage-ways for the ducts (J and E being formed by drilling after the metal has been cast into the desired shape. It will be seen that the feedpipe or supply-duct terminates at a point in close proximity to the wall ofthe mixing-chamber G; that the parts above described as forming the burner are all compactly arranged, and that the mixing-chamber has the main portion thereof situated below the central horizontal line of'the feedduct or supply-pipe. Therefore I can not only readily bring to bear a portion of the vapor in the mixing-chamber for the purpose of heating-that is to say, can not only readily withdraw it after it has been mixed with a sufficient amount of air to induce good conibusti0n.but can pro videaretortportion which can be kept very hot, it consisting of the abovedeseribed ducts passing through the metal portion referred to, and these being all compactly arranged, the heat can not only be retained, but can be brought to bear at the point where it is necessary to vaporize the oil.

H represents the inclined duct which conveys a portion of the vapor out from the mixing-ehamber to the orifice h, where the heating-jet is burning. In the construction shown in Figs. 1, 2, and 3 this jet plays upwardly and somewhat inwardly and in order to prevent the escape of the heat I combine with the parts above described a heatingplate, I.'

In the construction shown in last-described figures this is made by casting a plate at the inner end of the socket portion B,'situated substantially as is shown in the full and dotted lines in Fig. 2, and afterward bending down the outer end of the plate until the end lies in the angle between the socket portion and the mixingchamber G. This plate operates to throw downwardly and backwardly the heated currents, and also by conduction absorbs a great part of the heat and carries it downward to the retort portion. The hot currents which are thrown downward I prevent from escaping before they have imparted their heat to the retort portion, and this I accomplish by means of two laterally-extending webs or flanges, J J, brazed to or cast with the socket portion B. When these webs or wings are used, I utilize nearly all the heat which is generated by the heating-flame to assist in vaporizing.

Below the socket portion B there is a supplemental heating web or flange, K, preferably triangular in face view, and integral or in contact with both the socket portion and the vapor-duct C, it operating to conduct from the socket portion B a large amount of beat down along said duct 0, keeping the latter at a high heat.

Much trouble and inconvenience are incident to vapor burners as heretofore constructed, from the fact that the insects which are attracted by the light frequently enter the open space between the needle-valve and the mixingchamber and clog it, this often going so far as to nearly extinguish the lights. I have succeeded in obviating this trouble by combining with the burner a hood or guard, which, while allowing the free entrance of the air which is necessary to prepare the vapor for combustion, at the same time prevents the entrance of insects. This hood or guard is represented at L. It may be made of pieces of wire'gauze shaped to fit tightly around the said open space, or it may be made of sheet metal perforated.

I prtl'c-r to cast the burner with a laterallyexpanded plate, as shown at M,at or near the upper end of the needle-valve, which plate serves to support the lower part of the hood or guard, the upper being attached to or resting against the mixing-chamber wall.

In Figs. 4, 5, and 6 I have shown a modified form of the burner, it embodying, how-- ever, the features constituting the essential part of the present invention. In this case the heating-plate I extends downwardly from the socket portion B, and is curved inwardly at the lower end, which rests against or is secured to the vapor-duct C. The heating-vapor ductH extends downwardly on an inclined line through the knot of metal between the tube A and chamber G to the space between the heating-plate I and the vapor-duct. The heat which is generated by the heating-flame is partly absorbed by the heating-plate I, and by conduction carried to the adjacent portions of metal'and partly carried upward by the currents of air warmed thereby. The latter part of the heat, however, is prevented from being wasted in this construction also by the use of the laterally-extended wings or webs J, which intercept the hot currents and withdraw the heat therefrom, and by conduction carry it to the retort portion of the burner.

What I claim is- 1. In avapor-burner, the combination, with the supply-tube A, the mixing-chamber G, the socket portion B, consisting of a knot of metal cast integral with the mixing-chamber, and the vapor-duct 0, formed in the said metal and situated in proximity to the mixing-chamber, of the web I, connected with the socket piece B at its inner end, and curved outwardly to a point inside of and in proximity to the mixing-chamber, and the in clined heating-duct H, formed in said knot of metal said duct being formed independently of the shield I, and having its outer end within the space surrounded by said shield and arranged to throw the jet backward or inward toward the supply-duct A, substantially as set fort-h.

2. The combination of the mixing-chamber a socket portion, B, at the inner or upper end of the mixing-chamber, and having a knot of metal between the end of'pipe Aand the mixing-chamber, a vapor-duct, 0, running directly down by the side of the mixingchamber and communicating with the socket in the portion B, the heating-vapor duct communicating with the mixing-chamber near its upper end and situated in said knot of metal by the side of the duct 0, the heating-plate I, formed independently of the heating-vapor duct and bent or curved to surround the outer end thereof, and the shield J, substantially as and for the purposes set forth.

3. A vapor-burner adapted to be secured to a supply-pipe A, having the socket portion B, the mixing-chamber G, the vapor-duct O by the side of the mixing-chamber, inclined duct H, for the heating-vapor, havingits inner orifice at or near the upper end of the mixingchamber and its outer orifice behind the mixing-chamber and in close proximity to the inner end of the supply-tube A, the shields J J behind the mixing'chamber integral with the socket portion B, and situated in a horizontal plane between the upper and lower portions of said socket portion, and the shield I, curved or bent, substantially as set forth, around the outer orifice of the heating-vapor duct, as described.

4. The combination, with the vapor-burner having the mi'xingchamber G, provided at the lower end with an enlarged opening for the admission of air, the valve and valvesupport F below said aperture, the shield -M, carried by said valve-support, and the perforated or reticulated insect guard secured at its lower edge to said plate M, and at its upper edge secured to the mixing-cham ber above the air-opening, substantially as set forth.

In testimony whereof Iafiix my signature in presence of two witnesses.

CLEARMON'I V. BEST.

, Witnesses:

HENRY FISHER, J. P. FAWOETT.

ICC

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