US1652258A - Fire-lighting device - Google Patents

Description

[Dern 13,1927. 1,652,258 v H. STIELER l uns LIGHTING vsvrcs Filed latch v23. 1926 figa '15 such fire lighters,

Patented Dec. l3, 1927.

HEINRICH STELER, OF FBANKFORT-ON-THE-MAIN, GERMANY.

FIRE-LIGHTING DEVICE.

Application led March 23, 1926, Serial No. 96,829, and in Germany March 26, 1925.

Fire lighters consisting of waste material from the timber industry, or peat soaked or mixed with resins or tar or like readily combustiblev substances all have the disadvantage, that they develop large quantities of soot when burning on the grate. More particularly in furnaces, when firing uplocomotves and the like, where lire lighters of considerable size are required, the formationfef soot is found to be exceedingly detrimental, as the soot adheres for instance to the smoke tubes and adversely affects the full utilization of .the heat. A further disadvantage is, that with coal can only be lighted slowly, while it is difficult to light coke and anthracite at all with such fire lighters, if they are simply laid on the grat-e under the coal in the usual manner and lighted.

The inventor has succeeded in overcoming these drawbacks, by not introducing the fire lighters, as has been done heretofore, simply into the furnace space and lighting them there, but by burning them by means of a special device, in which a sufficient quantity of air is supplied to the re lighter in such a manner that the formation of soot is prevented and complete lcombustion taires place. vlhe new apparatus is preferably made so as to be portable and of such a shape as to be easily introduced through the tire door into the fire space. The formation of soot may be prevented, for instance by air being blown, for instance through nozzles, against 25 the front surface of the fire lighter which is placed in a stort of combustion chamber, such that the smoke produced during combustion is forced back into the combustion chamber and is caused to be completely s@ burned. Provision may also be made, for instance by completely enveloping the fire light-er with air or by repeatedly introducing air at points in the combustion chamber. lying one behind the other, or at the outlet of the same, for completely burning the iialres of soot. The fine flame produced in the kmanner referred to suiices for igniting any kind of coal.

The air may be supplied for instance through a movable pipe, for instance connected pivotally to the combustion chamber, or through iiexible metal tubing, which enables the combustion chamber to be placed at any suitable point of the grate. The stream of air may for instance betaken from an air compressor or a compressed air bottle or be the case of large industrial delivered by a small device acting in the manner of a blower, which is connected to p the air supply pipe or to the apparatus itself and may for instance be driven elec-v trically. In place of air oxygen or a mixturl of atmospheric air and oxygen may be use In the accompanying drawings one of the many possible constructional examples of thel invention is shown.

Fig. 1 shows a modified form of the combustion chamber of a tubular apparatus in section,

Fig. 2 shows the same apparatus with the damper open after the fire lighter has been burned, and

Fig. 3 shows the whole apparatus illustrated in Figs. l and 2.

In the arrangement shown in the annexed drawings a grate 24 is provided in the chamber 23, on which the lighter 25 is placed through the front opening in the chamber, the grate 24 being pressed down, the hook 26 forced back and the damper 27 beingl pushed into the position shown in Fig. l. With the parts in this position the projection or cam 28 on the extension 29 of the grate which is pivoted at 30 rests against the lower end of the damper 27.

The combustion air is produced for In stance by the fan 3l which may be connected directly to the apparatus by the pipes 32 andv 33. The pipe 33 may be connected at 34 tov the apparatus'by means of a cylindrical or conical joint. The air entering the forward part 35 of the chamber lying behind the damper passes through the openings 36 into the space between the outer casing 37 and the casing 38 of the combustion chamber and flows out through the annular nozzles 39 and 40. Nozzle apertures 41 may also be provided in the front part of the combustion chamber, from which the air will enter the interior of the combustion chamber, for instance in the form of a screen, which places itself in front of the lire lighter.

When the lire lighter has burned away, the grate 24 will no longer be loaded and will rise under the action of the counterpoise 4:2. The damper will be released by this means, so as to be free to turn under the pressure of the stream of air into the position shown in Fig. 2. The air is now free to pass through the combustion chamber and, after the rest of the lire lighter has been consumed, acts as an additional stream of air for assisting the coal which has been lighted to be set burning thoroughly'.

The outer casing in the example just described is made in the shape of a roof, for protecting the combustion chamber, when coal is thrown on the tire while the lighter is in action.` This form of outer casing also facilitates the withdrawal of the apparatus from the heap of coal. In the tunnel formed in this manner the jet-shaped flame or the air from the fan can be particularly elective.

The constructional forms described are only given by way of example and many modifications are possible without departing from the spirit of the invention, for instance by changing the shape of the casing, the arrangement of the nozzles, modifications ofthe movable and additional parts, such as the grate, the damper, the outer casing, the gilans for producing the air supply and the What I claim is:

1. A device for li hting fires, including a .casing for the reception of a tire lighter, and means for supplying compressed air to said casing during burnin of a fire lighter in such quantity and so istributed as to ellect complete combustion of smoke, a damper controlling passage of air through the air supply means, means vfor retaining said damper in closed position, and means actuated during the progress of the consumption of ire lighter for releasing and permitting said damper to open.

2. A device for lighting lire-s, including a casing for the reception of a lire lighter, and means for supplying compressed air to said casing during burning of a tire lighter in such quantity and so distributed as to eect complete combustion of smoke, and an outer casing receiving the iirst mentioned casing and adapted to receive air.

3. A device for lighting lires, including a casing for the reception of a lire lighter, and means' for supplying compressed air to said casing during burning of a lire lighter in such quantity and so distributed as to effect complete combustion of smoke, and an outer casing receiving the first mentioned casing and adapted to receive air, said outer casing being connected with the air supply means.

. 4. A device for lighting lires, including a' casing for the reception of a tire lighter, and means for supplying com ressed air to said casing during burning o a re' lighter in such quantity and so distributed as to ei'ect complete combustion of smoke, a damper in said air supply means, a counter balanced grate in said receptacle for supporting a tire lighter, and means on said grate for releasably holding said damper in closed position.

5. A device for lighting fires by'combus.-

v tion of ire lighters with compressed air comprising avmain air conduit, a ball joint on said conduit, an a1r conductlng tube attached to said ball joint, a casing attached to said V tube, a box for the reception of the lire lrindler connected to said airtube and arranged in said casing in such a manner that there is a space between the walls of said box and those of said casing, means to lead air from said tube into the space between said box and said casing and means to bring air into contact with the products of combustion a casing attached to said tube, a box for the reception of the tire kindler connected to said air tube and arranged in said casing in such a manner that there is a space between the walls of said box and those of said casing and means to bring air into, contact with the products of combustion leaving said box.

7. A device for lighting lires by combustion of lire lighters with compressed air comprising an air conducting tube, a casing attached to said tube, a box for the reception of the lire kindler connected to said air tube and arranged in said casing in such a manner that there is a space between the walls of said casing and said box, a damper in said box in front of the exit of said air tube, openings in the V,walls of said box between said damper and said tube, a movable grate in said box, means to control said damper by saidmovable grate and means to bring air into contact with leaving said box.

8. A device for lighting fires by combustion of tire lighters with compressed air comprising an air conducting tube, a box for the reception of the fire kindler connected to said tube, a damper in said box, a grate pivotally arranged in said box, an extension on said grate, a weight on said extension. a projectionon said extension engaging through the box with said damper, openings in the walls of said box between said air tube and said damper, a roof-like casing attached to said air tube and surrounding the box in such a manner that there is a space between box and casing and means to bring fresh air into contact with the products of combustion leaving said box. A

In testimony whereof I have signed my y name to this specification.

HEINRICH STIIGLER.

the products of combustion

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