US2022897A - Safety flare burner and snuffer - Google Patents

Description

, Dec. 3, 193.5. W H NEUMEISTER 2,022,897

SAFETY FLARE BURNER AND SNUFFER original Filed July 22, 1955 6 /l/ INI/NTOR BY fw TT ORNEY.

Patented Dec. 3, 1935 UNTED STATES iPA-'EENT OFFICE Application July 22, 1933, VSerial No. 681,751

Renewed April 27, 1935 6 Claims.

My invention relates to a safety flare commonly used for illuminating road obstructions, such as parked trucks and the like.

An object of my invention is to provide a nare ci this type which includes means for conveniently snuffing out the iame when desired.

A further object of my invention is to provide a weather prooi flare.

A further object of my invention is to provide means for retaining the snuiiing mechanism in proper position at any point.

A further object of my invention is to provide for such construction which will allow convenient changing or lling of oil.

A further object of my invention is to provide means for adjusting the size of the flame in the flare.

A further object of my invention is to provide a more eincient combustion means associated with the flare, and a further object of my invention is to provide all of the above mentioned constructions in a device of this character which can be manufactured at a minimum cost.

With these and other objects in view, my invention consists in the construction, arrangement combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawing, in which:

Figure 1 is a sectional View taken medially of the burner or" the flare.

Figure 2 is a slightly modied form of flare.

Figure 3 is an enlarged detail of the snuffer retaining means.

Figure 4 is a further modified form.

Figure 5 is also a modified form similar to Figure 4 with the exception of the snuifer being removed.

Figure 6 is a sectional View of Figure 4 taken along the lines Eie-l, and

Figure 7 is ,an enlarged detail of the arrangement shown in Figure 3.

I have represented the usual approximately spherical body of the flare by means of the character Ill. The body Ill includes the downwardly projecting and threaded ilange I I which receives the member I2. The member I2 includes the openings I3 for providing air for the burner and also includes the portion I4 adapted to engage the threads in the flange I I.

Formed integrally with these members is the wick receiving portion I5 and the flared extension I6. It will be seen that the entire arrangement of the wick holder, burner, etc. are all incorporati8 includes the concave top I 9 which projects be- 5 yond the main body of the snuffer at 23 to provide protection against driving wind and rain. The snuier I8 also includes the rectangular openings 2S. The bottom portion of the snuffer includes the flared anges 22 which are adapted to 10 protect the opening i3 in the body I2.

The body l2 also includes the vertical slot 23 and ,a machine screw 265, which is threadedly engaged at 25 with the shell i8, and passes through the slot 23. With this construction, it would be 15 impossible to remove the snuffer by accident, and the lengthened slot permits movement of the snufer upwardly or downwardly.

When the snuiier is forced downwardly, the openings 2| in most cases will overlap the top ci 20 the shell I2 and will thereby permit of adjustment in the size of these openings, so that the flare llame can be regulated.

In snufling the llame, the member I8 is forced downwardly to its maximum limit and the open- 25 ings 2t are then entirely closed and the flame extinguished.

Adjacent the slot 23, I provide the slightly outwardly bent flanges 25a. These flanges provide means for retaining the snuffer cap I 3 in .any 30 desired position by virtue of the tension exerted thereagainst.

Air is drawn through the openings I3 into the burner or shell I2 providing the necessary oxygen for combustion and the flames are thrown 35 through the openings 2|. Any suitable oil can be used in the flare such as kerosene, signal olii or the like.

Figure 2 illustrates a modification having many characteristics in common with Figure 1 with a 40 few exceptions which will now be noted. In this form, the shell I2 is threadedly engaged at 26 with the member 21 which is soldered or suitably welded at 23 to the body of the llare I. The member 21 includes the downwardly pro- 45 jecting integral iiange 29, the horizontal ange 30 formed therewith, and the conical element 3|.

The wick-holder 32 includes the downwardly projecting ring flange 33 which is threadedly engaged with the flange 29. The threaded engagement at this point is made rather loose.

The flange 33 includes the small opening 34. The cone shaped element 3| is made approximately two-thirds the size of the opening 35 of the Wick-holder 32. By means of this arrangement, an additional small amount of air is drawn downwardly from the openings I3 through the loosely engaged threads, thence through the opening 34 into the chamber 36, which chamber is formed between the flange 33 and the element 3l. rIhis chamber acts as a mixing chamber for the air and gases from the oil passing around the cone shaped element 3l and through the opening 35. This mixing causes a more efficient reduction of the gas and air to the proper combustion point Vand provides a more eilicient, cleaner, and brighter ame in the wick Il.

The snuier cap i3 in forming usually includes small round fillets at the points 31 and the shell l2 would usually become jammed against these fillets thereby locking the burner shell l2 against the-snuier cap when the latter is forced downwardly to its maximum limit. To oiset this difficulty, I provide the round edges 38 at the top of the shell l2. Y

The construction just described embodies features of convenient removal of the top structure of the nare since the shell I 2 can be removed or the wick holder 32 can be conveniently removed for replacing the wick. The oil is poured through the cone 3|.

It will be understood, of course, that the wick passes through both the cone shaped member 3! and the wick holder. Y

The iiared members 22 prevent a driving wind or rain from penetrating through the openings I3.

Figure 4 illustrates a further modication in which the member 39 is screwed to the flange Il and includes the neck 4d. 'Formed integrally with the burner I2 are the arms il (see Figure 6) which terminate in the clamping members 42 which are clamped about the neck 40 by means of the screws s3 passing through the ears 44. Figure 5 illustrates a similar form with the exception that the snuifer cap is not used therein and the burner i 2 is combined integrally with the tcp portion I9.

It will be seen in both of these constructions that the air supply for combustion passes through the large openings #.5 formed between the arms i and the walls of the shell. This provides a large area for drawing air through the burner.

Since seepage is usually present from the wick and since a certain amount of unburned oil will flow to the lower parts of the burner, I provide the small openings 4B (see Figures 1 and 2) to alloiw this excess oil to drop back into the torch body.

t will now be seen that I have provided a flare which combines features of simplicity, convenience in removal, interchangeability, and provides means for adjusting the size of the flame of the iiare. It will also be seen that I have provided features which allow for snuiing of the flame when desired and for more eicient combustion of the gases in the burner itself.

It will also be seen that I have provided all of the above mentioned features in a construction which is easy of manufacture and reasonable in cost.

Some changes may be made in the construc- 5 tion and arrangement of the parts of my invention without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modied forms of structure or use mechanical equivalents, which may be reasonably included within their-scope. l

I claim as my invention:

l. A flare torch having an upper opening, an open end burner attached to the opening having air openings, a snuiier cap slidably engaged with the burner having lateral flame openings.

2. A nare torch having an upper opening, an open end burner attached to the opening including an upwardly projecting conical member having an open end, a wick-holder inside the burner adapted to overlie the conical member and form a chamber therebetween.

3. A are torch having an upper opening, an open end burner attached to the opening including an upwardly projecting conical member having an open end, a wick-holder inside the burner adapted to overlie the conical member and form a chamber therebetween, snuier means slidably engaged with the burner.

4. A flare torch having an upper opening, an open end burner attached to the opening, snuiier means slidably engaged with the burner, including a snuier cap having a plurality of flame emitting openings adapted to be regulated in size by means of the varying closure formed between the said openings and the upper rim of the burner when the cap is adjusted vertically.

5. A flare torch having an upper opening, an open end burner attached to the opening, snuier means slidably engaged with the burner, including a snufer cap having a plurality of name emitting openings adapted to be regulated in size by means of the varying closure formed between the said openings and the upper rim oi the burner when the cap is adjusted vertically, means for causing limited movement of the cap including a slot in the burner, stop means attached to the cap and passing therethrough.

6. A flare torch having an upper opening, an open end burner attached to the opening, snuier means slidably engaged with the burner, including a snuffer cap having a plurality of flame emit- Vting openings adapted to be regulated in size by means of the varying closure formed between the said openings and the upper rim of the burner when the cap is adjusted vertically, means for preventing jamming between the snuffer cap and the burner comprising integral rounded extensions being formed at the top of the burner.

WALTER H. NEUMEISTER.

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