US1732708A - Burner - Google Patents

Description

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JOSEPH E. WITHROW AND LYMAN W. CLOSE, TOLEDO, OIIIO, ASSIGNORS TO THE TOLEDO PRESSED STEEL COMPANY, 0F TOLEDO, OHIO, A CORPORATION OE OHIO BURNER Application led December 26, 1.92.8. Serial No. 328,432.

This invention relates to street torches, suchv as are commonly used for illuminating road obstructions, and usually referred to as construction torches, but more particularly to devices for increasing the efficiency of such torches and militating againstI extinguishment of the torch flame, and an object is to provide a simple and eliicient attachment for torches of the above character for' increasing the efficiency thereof and materially reducing the liability of extinguishment of the dame by high winds. Another object is to provide a burner so constructed and arranged that liability of extinguishment of the flame by high winds' or by rain is reduced to a minimum. Further objects are to provide a device of thev above character which may be inexpensively manufactured and has the new and improved features of construction hereinafter described.

rlfhe invention is shown by way of illustration in the accompanying drawings, in which Fig. l is a vertical sectional elevation of ay torch with the device applied thereto;

Fig. 2 is a transverse sectional view on the line 2--2 ofvFig. l; and

Fig. 3 is a vertical sectional elevation of an alternate form of burner.

'lhe illustrated embodiment of the invention comprises a sheet metal torch 1 of substantially frusto-spherical shape having an opening for a wick in its upper end 2.

Crimped over the edges of such opening is a member 3 having an outwardly extending annular flange 4, which is internally threaded. Resting on the shelf formed by the member 3 is a disc like member 5 having a central tubular extension 6, which pro]ects inside of the torch body l a substantial distance. A wick W is adapted to extend throughy the extension 6 and to be held in position thereby.

Screwed onto the threads of the annular flange 4 is a cap 7, which extends inwardly from the flange 4, and then upwardly. The upper wall 8 of the cap 7 is imperforate, and as shown, is dome shaped. Formed in the side Walls of the cap beneath the end wall v8 is a series of relatively large rectangular openings 9 through which the flame of the torch passes. Beneath the openings 9 are series of relatively small air ports 10, through which air passes to the inside of the cap for the torch flame. It will be observed that the cap is of such dimensions that the side walls thereof are spaced from the sides and end of the wick W.

Resting upon the disc shaped member 5 is an arched disc 1l having an upwardly extending annular flange l2 terminating in the `region of the air ports 10. As shown, the

upper end of the extension 12 covers approximately one-third of the area of the ports l0. The function of the disc 1l is to prevent the air enterin the inside of the cap 7 from cooling the wic W to such anextent that the temperature of the oil passing up the wick is reduced below the desired point.

When the outer end of the wick W is lighted the oil passing up the wick by capillary action is heated, thereby maintaining the oil in the region of the outer end of the Wick at the proper flashing point. ylhis heating of the Wick is facilitated by the reflection of heat from the dome-shaped cap and by conduction to wick-holding collars l2 and 6 from their supporting flanges, flange 1l receiving reflected heat and being in contact with the lower edge of the heated cap. Air inlet openings 10 being above'the lower edge of the cap leaves a space within the cap and above the flange of the wick holder for comparatively quiescent air. This quiescent layer of air Y in contact with the Wick holder and the restriction of inlet ports to admit to the wick and holder only such air as is needed for combustion aids in maintaining the heat of the Wick holder and wick. This militates against extinguishing the flame by high winds. Suhcient cool outer air is supplied to the end portion of the wick through the ports 10 for securing a satisfactory flame, and the latter extends through the openings 9 to provide a satisfactory signal. It has been found that with the above described construction and arrangement, the oil consumption is materially decreased. It is also found that the amount of wick used is likewise decreased. Another outstanding advantage resides in reducing the liability of extinguishing the flame by high winds or rain.

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. to be attached to or detached from the torch per wall, lateral as a unit. In this form the disc 5a has an inwardly extending wick-receiving tube 6, and fixed to the upper surface of the disc 5a is a disc 11a provided with an upwardly extending flange or tube 12a. The upper end of the flange 12*l covers approximately one half lof the openings l() of the cap 7. Itwill be understood that the arrangement of tubes 6 and 12a ma be used to advantage in the form shown in ig. 1.`

While we have shown and described constructions which admirably fulfill the objects primarily enumerated, it is to be understood that the above description is given by Way of illustration and not of limitation, and numerous changesin details of construction and arrangement may be effected without `departing from the spirit of the invention, especially as defined in the appended claims.

What we claim as new and desire to secure by Letters Patent is 1. In a device of the class described, a torch body having an opening at its upper end, a wick-receiving tube extending into said opening, and a cap disposed on the outer side of said torch body to enclose the outer end of the Wicksaid cap having an imperforate upame openings, and air openings below the flame openings.

2. In a device of the class described, a torch body having an opening for a wick, and a flame guard for said wick mounted on the outside of said torch body, said guard including a cap provided with an imperforate top wall and lateral flame openings adapted to emit a luminescent flame, and air ports.

3. In a device ofthe class described, a torch body having an opening for a wick, an outwardly extending flange in the region of said opening, and a flame guard detachably connected to said flange and comprising a cap provided with side flame openings and air ports.

4. In a device of the class described, a torch body having a wick opening, an outwardly projecting flange in the region of said opening, a wick-receiving tube extending inside of said torch body, and a guard for the'outer end of the wick engaging said flange, said guard comprising a removable cap having an imperforate top, side flame openings and air openings. l

5; In a device of the class described, a construction torch having an opening'in its upper end for a Wick, means to hold the wick in place, and a guard fitting over the outer end of the wick but spaced from the sides thereof, said guard having an imperforate top wall and side flame and air openings.

6. In a device of the class described, a torch body having a wick-opening, a tube for receiving the wick and adapted to extend inside of the torch body, an outwardly extending flange in the region of said wick-o ening, and a cap connected to said flange and iaving an imperforate top wall, said cap having a flame opening adjacent its outer end and an air port beneath said flame opening.

7. In a device of the class described,'a torch body having a wick-opening, a cap for enclosing the outer end of the wick but spaced from the sides thereof, an imperforate end wall for said cap, said cap having a series of flame openings and a series of air ports beneath the flame openings, and a disc adapted to embrace the wick and having a flanged upper portion disposed in the region of said air ports.

k8. In a device of the class described, a torch body having a wick opening, an outwardly extending flange in the region of said opening, a wick tube extending inside of said torch body, a cap adapted to enclose the outer end of the wick and engaging said flange, an imeprforate end wall for said cap, said cap having a series of flame openings and a series of air ports beneath said flame openings, and a flanged disc adapted to embrace the wick and having its upper end disposed adjacent said air ports.

9. In a device of' the class described, a burner unit adapted for attachment to a torch, said unit comprising a supporting member for engagement with a torch body, a wick-holding member having oppositely extending flange portions for embracing a wick, and a cap superposed upon said supporting member, said cap being provided with vertically spaced air-inlet and flameoutlet openings.

10. In a device of the class described, a burner unit adapted for attachment to a torch, said unit comprising a supporting member for engagement with a torch body, a wick-holding member having oppositely extending flange portions for embracing a wick, and a cap superposed upon said supporting member, said cap being provided with vertically spaced air-inlet and flameoutlet openings, the upper end portion of one of said flange portions covering approximately one-half of said air-inlet openings.

11. A burner for a construction torch adapted to emit a luminescent flame and comprising a wick holder having a portion in contact with the wick and a supporting and heat-receiving flange, and means enclosing a space above said flange and surrounding the Wick, except for` provision for lateral exit of flame and restricted entrance of air for combustion.

l2. A burner for a construction torch adapted to emita luminescent flame and comprising a lwiel; holder having a portion in contact with the wick and a lateral 'flange and a cap enclosing and spaced from the en of the wiek.and having animperforate to and provision for lateral exitV of Herne an entrance of air, and the bottom of the cap eing in heat conducting relation to said an e.

13% A burner for a construction torch adapted to emit a luminescent flame and comprising a wick holder having a portion in contact with the wick and a laterally eX- tending flange and a cap over the wick, the cap having an imperforate, dome-shaped top wall, a lateral flame opening approximately even with the top of the wick and a smaller opening for the inlet of air lower than the Haine opening and above the lower edge oit the cap, said lower ed e being in heat-transerring relation to sai flange.

M. A constructiontorch adaptedwto emit a luminescent flame and comprising a fuel receptacle with an opening in its top, a Wick extendin upward through said opening, a wick hol er having a collar holding the wick and a flange resting in said opening, and a cap screwed into said opening and against said ange, the cap surrounding and being 30 opened from the end of said wick, having an inaperforate, dome-shaped upper wall, lateral space for the `exit of flame adjacent said wall, and restricted inlet for air beneath said space. o 35 ln testimony whereof wehave hereunto signed our names to this specification.

Jl. E. WITHROW. LYMAN W. CLOSE.

DISCLAIMER 1,732,708.-Joseph E. Wthrow and Lyman W. Close, Toledo, Ohio. BURNER. Patent dated October 22, 1929. Disclaimer led July 14, 1939, by the assignee, The Toledo Pressed Steel Company. Hereby enters this disclaimer to claims 1, 2, 5, 6, 7, 11, 12, and 13 of the above identified patent.

[Oc'ial Gazette August 8, 1.939.]

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