US918753A - Incandescent gas-burner. - Google Patents

Description

K. KPPERS. y INGANDESGENT GAS BURNER.

Patented Apr. 20, 1909.

APPLIUATION FILED 00T.3, 1906.

T BEIGE.

KARL KPPERS, OF AACHEN, GERMANY.

INCANDESCENT GAS-BURNER.

Specification of Letters Patent.

Patented April 2o, 1909;

Application filed. October 3, 1906. Seri-a1 No. 337,290.

To all whom it mag/concern.'

Be it known that I, KARL Krrnns, asubject of the King of Frussia, German Emperor, and resident of 27-29 Stefanstrasse, Aachen, in the Province of the Rhine, German Empire, engineer, have invented newk air mixture for the purpose of economically producing a flame of higher temperature. buch a burner is described in my prior U. S. Patent No. 802,297, dated October 17th, i905.

The object of the present invention is to effect a still greater economy in burners of this type and this greater economy is effected by pre-heating the gas of the ure gas flame. The arrangement used may a so be adapted to effect a pre-heating of the mixture, so that the pure gas as well as the mixture of gas and air passes to the burner in a heated state. Burner constructions of this kind can be used for common upright incandescent gas-lights as well as for those of the inverted type.

In order to make my invention better understood I accompany same by drawings in which: i

Figure l represents a constructional form for pre-heating gas alone, showing the arrangement in a vertical section. Fig. 2 is a cross section on line A-B of Fig. 1. Fig. 3 a cross section on line C-D of Fig.' i and Fig. 4 resembles a modified arrangement of the pre-heating device in a vertical section, in which the mixtureiof gas and air is also pre-heated. t

a is the inner tube through which gas flows coming from the gas conduit not further shown in the drawing.

g is a body of insulating material to which the inner tube a and the tube c are attached, and which forms a chamber g.

d. is an outer tube closed at its upper end and surrounding the tube c.

e is a tapered part in connection with the lower end of the tube d and provided with perforations e. v

e2 is an enlarged short tube forming the continuation of the tapered part e and fitting into the chamber or recess g of the insulated body. The latter can be provided with projections or ribs of heat-conducting material for increasing the reheating action of the arrangement. Furt ermore the tube d can be provided with an enlargement and fitted with an insulating mantle in its lower en h is an outer tube surrounding the inner tube a and the body g. At its lower end the tube h is connected with the inner tube a by the flange t having openings b throughwhich the gas can enter the annular space formed by the tubes aJ and h.

lc is a perforated body such for instance as a sieve which together with the perforated part e forms the burner head. T e funnel- 'shaped perforated tube part f: of the burner head is attached at its lower end to the piece g and bears with its upper end against the tube h. v

Z is a covering or plate carried by the upper end of the outer tube h and rovided with openings or perforations n an with slots m. At the lower end or near it a number of holes i are cut into the tube h, through which fresh air enters from the outside and admixes with the gas within the tube h. This arrangement as foregoing described operates in. the following manner The gas flows partially through the openings b and enters partially the inner tube a. That gas, which passes the opening t, mixes in the annular space formed by the tubes a and h with air and discharges at the top of the tube h through the openings and slots 'n and mrespectvely, after havingpassed the sieve ir. The part of the gas entering the vtube a flows upward through the tube c and then downward through the annular space Vformed by the tubes c and d. In passing through the space the gas becomes intensely re-heated on account of the outer tube d eing surrounded by the lamp flame, which pre-heated gas finally enters the chamber g and from there passes through a number of small openings e in the tapered part e', where it admixes with the gas and air mixture, which immediately afterward rushes through holes 'n and slots m into the flame.

In the Fig. 4 a modified arrangement of the preheating device is illustrated. According to this figure the outer tube d is dispensed with and a tube a closed at its upper end, is provided within the chamber g with openings or perforations b2. The tapered part e of the mantle e2 is attached to the tube a/ and provided with openings e. By means of this arrangement the heat is conducted from the upper part of the tube a to its lower portions and in this Way the loWei1 poition of the tube e is pie-heated by the time it passes through the openings Z22. The mixtures oi gas and aii1 which lave around the hot Wells of the lower portions of tube a will in this construction be also preheated to ai ceitein extent before it reaches the burner heed.

Having thus fully described the nature ol' Lettei's Patent oi the United Sta-tes iszl, In sin incandescent burner, a burner heed, e ges supply pipe, e conduit eonnnunieating diectly With the atmosphere and with the supply pipe and leading to seid buinei head, e second conduit Closed to the ethicspheie leading fiom the ges supply pipe to the burner head and ineens for heating portions of said second conduit.

2. In an incandescent burner, a huinei head, t ges supply pipe, e conduit coniniunieating directly With the atmosphere end with the supply pipe end leading to seid burner i I 4 l I l f i l I niy seid invention, what l desire to seeui'e by j 1 l r I l gas passing through this hezid, a second conduit closed to the atmosphere leading l'ioni the gas supply pipe to the l burner head :ind said conduits.

3. fin incandescent gas burnei` hzivinpr :i binnei tube with peil'oin tions opening` to the atmosphere, i gais supply pipe lending to smid buinei' tube, :t eoneeni'niiczilly within the buinei1 tube and leading fioin seid gas supply pipe and l'oipsit oi" its length within the llame, u buinei head comprising :i peiloi'aited tuie ol gais und :iii passes und e pei'l'oiuted outlet plate thiough which the puie fue 'ioni said coneentiioelly iiiiunged pipe passes, substantially iis desci'ibed und l'oi' the purpose set i'oth.

ln Witness whei'eolA l. have hereunto set my hand in the presence ol" two Witnesses.

ineens l'oi' heating both ol' llvitnesses: H

HENRY liiisenu, WOLDEMAR lfliiUP'i.

pluto, through `which the niifrft.:

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