US1001934A

US1001934A - Fuel-igniter.

Info

Publication number: US1001934A
Application number: US61718211A
Authority: US
Inventors: William A Dyer
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-03-27
Filing date: 1911-03-27
Publication date: 1911-08-29
Anticipated expiration: 1928-08-29

Description

W. A. DYER.

FUEL IGNITER.

APPLICATION I'ILBD MAR. 27, 1911.

1,001,934. Patented Aug. 29, 1911.

lllllll GTON WILLIAM A. DYER, OF ST, LOUIS, MISSOURI.

FUEL-IGNITER.

Specification of Letters Patent.

Patented Aug. 29, 1911.

Application filed March 27, 1911. Serial No. 617,182.

To all whom it may concern:

Be it known that I, WILLIAM A. DYER, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Fuel-Igniters, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertainsto make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a plan view of a fuel igniter of my improved construction. Fig. 2 is an enlarged vertical section taken on the line 22 of Fig. 1. Fig. 3 is a transverse section taken on the line 3-3 of Fig. 2. Fig. 4 is a detail section through the rear portion of the body of the igniter. Fig. 5 is a detail section of a modified form of the forward end of the igniter.

My invention relates to a fuel igniter of the type wherein a metal tube is connected at one end to a flexible tube, leading from a suitable source of gas supply, and the opposite end of which metal tube is adapted to be inserted into the body of fuel located upon a grate or within a fire box, and thus when the gas is permitted to pass through the flexible tube and the metal tube, it will discharge from the forward end of said metal tube, and being there ignited will furnish suflicient flame to quickly ignite the fuel upon the grate or within the fire box.

The principal object of my invention is to provide a simple, inexpensive device, particularly adapted for household use, and which device is provided with an adjustable valve for controlling thesupply of air and gas into and through the tubular body portion of the device, which valve regulates the amount of gas which is permitted to enter and pass throughthe body of the igniter corresponding to the pressure of the gas as it comes from the supply pipe.

The valve of my improved ,igniter can be readily adjusted to proportionately regulate the volume of air admitted to the tube mixed with the gas therein, thus producing an inflammable mixture which burns with a high degree of heat when ignited at the nozzle end of thedevice. A further object of my invention is to locate at a suitable point in the body portion of the ignitera tubular member formed of a suitable metal or noncombustible material having low heat conducting qualities,

thereby preventing the heat developed at the forward end of the body portion of the de vice from being conducted to the rear end of of the device, and affecting the flexible connection which unites the device with the source of gas supply.

To the above purposes my invention consists in certain features of novelty hereinafter more fully described and claimed.

Referring by numerals to the accompanying drawings, 1 designates the body portion of the igniter which is preferably in the form of a small tube, and for ordinary household use for stoves, grates and furnaces this tube is approximately fifteen to twenty inches in length and from one-half to one inch in diameter. The forward end of this tube is preferably flattened as designated by 2, in order that the combustible gas discharging from said forward end will be spread out in fan-shape. If desired, the flattened forward end 3 of this tube may be closed as shown in Fig. 5 and provided with a number of jet openings.

In order to prevent the heat developed at the forward end of the device from being conducted to the rear end thereof and affecting the flexible tube connected to said rear end I propose to make use of a tubular member of non-combustible material, preferably metal having proportionately low heat conducting qualities, as, for instance, Babbitt metal or the like, and as shown in Fig. 1, the main body of the device is divided into two parts, and the adjacent ends thereof are united by a short tubular section 4 of Babbitt metal or analogous material.

In Fig. 1 a short tubular section 5 of Babbitt metal or analogous material is seated in the rear end of the tube 1, and the flexible tube 6, which leads to the source of gas supply is fitted directly to said tubular member 5.

A portion of the tube 1, adjacent the rear end of the device is enlarged as designated by 7, and formed integral with the tube at the rear end of this enlarged portion is a wall or partition 8, through the center of which is formed a vertically disposed slot 9, which forms a gas inlet orifice into the chamber within the enlarged portion 7. The chamber within this enlarged portion 7, is open at its upper end and adapted to close said open upper end is a plate 10, provided on top with a projection preferably in the form of a ring 11, by the means of which said plate is raised and lowered. A flange 12, is formed integral with and depends from the underside of the plate 10, which flange is adapted to fit snugly in the open upper end of the chamber within the enlarged portion 7, and depending from the rear portion of the plate 10, is a vertically disposed plate 13, which lies directly against the front face of the wall or partition 8. Formed in the lower end of this plate 13, and at the center thereof is a notch 14:, which when said plate 13, is elevated is adapted to coincide with the gas orifice 9. Formed on the front face of the plate 13 adjacent the lower end thereof is a transversely disposed rib 15, and passing through the chamber within the enlarged portion 7', adjacent the upper end thereof, and immediately in front of the plate 13, is a pin 16, the ends of which are seated in the side walls of said enlarged portion 7. This pin forms a stop against which the transverse rib 15, engages, thereby limiting the upward movement of the valve member comprising the plates 10 and 13.

The parts of the valve member are constructed in such size so that when said valve member is lifted to bring the upper end of the notch 14, in alinement with the lower end of the orifice 9, the lower edge of'the depending flange 12, will just clear the open upper end of the chamber within the enlarged portion 7, thereby admitting a comparatively small amount of air in proportion to the small amount of gas discharging through the small opening between the orifice 9 and notch 14. As the valve member is elevated the gas and air inlet openings are proportionately increased in size, and it is not necessary to regulate any valves or cocks in the gas pipes or connections to which the flexible tube 6, is attached.

Vhen the device is in use the forward end of the tube 1, is inserted at the desired point in the fire box or between the bars of a grate and after the gas is turned on from the supply and the valve member comprising the plates 10 and 13, is raised to open po sition, the gas at the forward end of the device is ignited and the volume of the flame at the point of combustion can be easily and quickly regulated by adjusting the position of the valve member. As the forward end of the device occupies a posi tion within the body of fuel located in the fire box or on the grate the flame of the burning gas will readily ignite said fuel, thus accomplishing the desired result.

It will be readily understood that when the valve member of the device is elevated to expose a portion of the gas orifice 9, the gas discharging from said orifice into and through the tube 1, draws in through the open upper end of the chamber within the enlarged portion 7, sufiicient air to combine with the said gas and form a mixture which upon combustion will produce a blue flame of great heat.

A device of my improved construction is comparatively simple, can be cheaply manufactured, is particularly eflicient when used for a means for igniting anthracite coal, and the valve member is made in a single piece, and the gas and air inlets are arranged so that the valve member with one motion can be easily and quickly adjusted to proportionately regulate the sizes of said and air inlet openings.

The flexible tubes to which devices of this character are connected are formed of rubber, and by equipping the body of the igniter with a tubular member of metal which is a non-conductor of heat, the heat developed by the ignition of the gas at the forward end of the device is prevented from passing through the device and aflecting the flexible tube connected to thereof.

here my improved igniter is used for igniting fuel in stoves and small heating furnaces the flexible tube 6 is preferably attached directly to the burner tip of a gas fixture. For use in large boiler furnaces and the like, the igniter can be made of tubing several feet in length, and of one or two inches in diameter.

It will be readily understood that minor changes in the form, size and construction of my improved device, may be made and substituted for those herein shown and described, without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim:

1. In a fuel igniter, a tubular member, the rear end of which is adapted to receive a flexible tube leading from a suitable source of gas supply, the forward end of which tubular member is formed into a nozzle, which tubular member is provided near its rear end with an air inlet opening, a wall formed within the tubular'member adjacent the air inlet opening, which wall is provided with a gas inlet opening, a valve member adjustably' mounted in the tubular member, a portion of which valve member is adapted to cover the gas inlet opening, and an extension on said valve member adapted to close the air inlet opening.

2. In a fuel igniter, an elongated tubular member, one end of which is adapted to be connected to a suitable source of gas supply, which tubular member is-provid'ed with an air inlet opening, and a valvemember adj ustably mounted in the air inlet opening of the tub-ular member for simultaneously and proportionately varying the flow of gas through the tubular member, and the inflow of air through the air inlet opening.

3. The herein described fuel igniter comthe rear end prising a tubular member adapted to be connected to a suitable source of gas supply, Which tubular member is provided with an air inlet opening, a wall within the tubular member adjacent the air inlet opening, which wall is provided with a restricted gas discharge opening, and a single adjustable valve member mounted in the tubular member for simultaneously and proportionately varying the flow of gas through the restricted opening, and the flow of air into the tubular member through the air inlet openmg.

4. In a fuel igniter, a tubular member,

the rear end of which is adapted to receive a flexible tube leading from a suitable source of gas supply, the forward end of which tubular member is formed into a nozzle,

which tubular member is provided near its rear end with an air inlet opening, a Wall formed within the tubular member adjacent the air inlet opening, which wall is provided with a gas inlet opening, and an inverted L-shaped valve member arranged for movement through the air inlet opening one wing of which valve member is adapted to close the air inlet opening into the tubular member, and the other wing being adapted to close the gas inlet opening.

In testimony whereof I hereunto aifiX my signature in the presence of two Witnesses, this 24th dayof March, 1911.

WILLIAM A. DYER.

Witnesses:

M. P. SMITH, A. J. HUTTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.