US1664917A - Safety igniter for gas stoves - Google Patents

Description

April 3, 1928. R 1,664,917

W. F. DESTER SAFETY IGNITER FOR GAS STOVES Filed NOV. 10, 1925 Patented Apr. 3, 1928.

UNITED s'rAras WILLIAM I. DESTER, OF NEWARK, NEW JERSEY, ASSIGEDR TO 'U. S. TOOL (10., ENG, 01! EAST ORANGE, NEW JERSEY, A CORPOBATIQN OF NEW JERSEY.

SAFETY IlIGNITER FOR GAS STOVES.

ing a pilot flame so arranged as to be pro tected from drafts-and which is practically unextinguishable so long as a supply of gas is maintained.

A still further object is to produce an igniter in the form of an attachment readily applicable to gas stoves of a modern type of construction without material change therein, the igniter being inexpensive'to manufacture, easy toinstall and substantially indestructible in use.

These and other similar objects are accomplished by the novel design, construction and combinationof parts hereinafter described and shown in the appended drawing, constituting a material part of this disclosure, and in which Figure 1 is a top plan view of a conventional type of gas stove showing an embodiment of the invention as applied to the several burners. I

Figure 2 is an enlarged perspective View of the pilot, its connections and housing, parts being broken away to show the construction.

Figure 3 is a fragmentary partial sectional partial perspective view of the same.

Figure 4 is afragmentary side view of the pilot valve and control.

Around the top of the stove, as shown in the drawing, is a frame 5 having an inner lower seat rim 6 to receive and support open grid cover-s 7, below which are burners generally designated by the numeral 8. These burners are of the inulti-lobed type,

each lobe having a plurality'of fine perforations for the passage of gas jets to be ignited.

Each burner is connected by bent pipes 9 to atmospheric air inlets 10 having control shutters 11 and into which pass gas inlet tubes 12 controlled by cocks1 3 and furnished and shaped to produce open from a gas supply header 1 held to the. frame of the stove by supports 15, all of these elements being old and well known.

Sotoo is the pilot light connection tube 16 in communication with the header 14, the tube being provided with a needle valve control 17, the screw 18 of which is held ,frictionally in adjustment by itsencircling tension spring 19.

. The inner portion of the tube 16 is curved into an upright position after passing through a support 20, attached to the bottom wall of a cylindrical pilot housing 21, into which the screw-threaded end 22 or the tube 16enters.

The bottom of the housing is provided with a plurality of perforations 23 for the inlet of air to the pilot burner 24, having a fine central tip, 25, the burner being fixed on the end 22 of the supply tube and the tube itself is held rigidly to the housing by clamp nuts 26 and 27 respectively inner and outer.

The cylindrical wall of the housing contains-notches 28 in its upper edge and in register therebelow are small screw-threadedthe wall of the housing and having openings 34 registering with" the housing notches 28. The upper portions of the brackets 33 are bent at right angles outwardly, as at 35, at ,tenuated in width and offset downwardly at 36, the material being formed into bands 37 terminating in pairs of lugs 38 provided with clamp screws 39.

Engaged adjustably in these bands are tubes 40, their outer ends bein downturned ttomed receiving and dispensing funnel heads 41, disposed adjacently over the outermost perfora-j tion in the nearest lobe of each burner 8, as best seen in Figure 1.

The inner. ends of the tubes 40 are formed with a series of closely spaced annular grooves 42, having sharply defined corners and adaptedto become severed upon being struck a blow, as with a hammer, or upon bending, the object being to shorten the tube 3 to a suitable length to extend from the burner perforation to-a point adjacent and above the pilot tip 25.

The inner ends of the tubes 40 pass through the bracket openings34= and notches cesses 45 to engage over the tubes 40, rest ing upon them to clear the upper edge of the housing, as best seen in Fig. 3.

In operation it is to be understood that the valve 17 is adjusted to permit a steady but fine flow of gas from the header 14 to the pilot jet 25, which is intended to be' maintained' in a constantly ignited condition.

Upon opening any of the cocks 13, gas will pass from the header to the selected burner and, escaping through the perforated lobes, will find its way, in part, into the funnel head 41 to be conducted through the tube to the pilot flame, whereupon an instant slight explosion takes place and flame is caused to return through the tube 40 to the head 41, igniting the several jets of gas e'scapin from the perforations in the burner instantly and without action on part of the operator, who has merely to open the cook or cocks of the burners it is desired to use.

This automatic igniting action will take place obviously if the cocks are inadvertently opened and also if the gas at the burners he accidentally extingulshed by a .draft, the wind, water from boiling vessels or other causes, against the loss danger. p 1 1 It will be seen that several burners may be controlled by a single igniter, that the pilot light is so arranged asto avoid being blown out under ordinary circumstances and that the design of the same is 'neat and unobtrusive.

The foregoing disclosure is to be regarded as descriptive and illustrative thus affording assurance of gas and consequent a control valve in said pipe,

only, and not as restrlctive or limltative of the invention, of which obviously an embodiment may be constructed including many modifications I claim as new and desire to secure by Let ters Patent, is

1. The combination with a gas burner, a pilot tip and a gas supply source, of a pipe connecting said supply source with said tip,

a housing completely enclosing said tip, a cap loosely engageable over said housing having an intervening air space, a bracket adjustably en-' gaged on said housing, a tube adjustable in said bracket to extend horizontally, through the wall of said housing into the path of flame from said tip, said tube having a series of weakening ening is facilitated, and means on the outer end of said tube adapted to collect gas from said burner and deliver to said tip.

2. The combination with a gas stove having a plurality of burners, a pilot burner ,inteljacent, and a gas header in controllable communication with each of said burners,

of a housing'enveloping said pilot burner,

said housing having a erforate bottom, a pipe leading from said eader through the bottom wall of the housing, means or adjustably engaging said tube therein, said ipe bearing the pilot burner, brackets aterally adjustable on said housing, said brackets having radially extending loops, tubes adjustable in said bracket loops, said tubes entering the housing and terminating adjacently above the pilot burner, a cap on said housing restingonsaid tubes, said cap being spaced from the housing, and funnels on the outer ends of said tubes disposed directly over the adjacent openings in said burners.

This specification signed and witnessed this thirty first dav of October, 1925.

. WILLIAM F. DE STER.

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