US2362272A - Lighter - Google Patents

Description

Nov. 7, 1944. F; R. HIGLEY ET AL LIGHTER Filed Nov. 6, 19 40 QETWI INVENTOR. fIH/YK' E #1625) V/L YNN 0. BEAM M 724M440? W ATTORNEY5 Patented Nov. 7, 1944 Frank R-rl leys and yilynn -t eam Cl v nd i hts, .KOhiO, assi ors to Tha r antHea sr a mpany, ,fi e a t Ohio- Ohio; a corporation of mil qa n-N vem e fi, mSer LNm 364532;

8 Claims. (CL 158L415) Thisxiinvention relates t0; impro.vemeni'ls- 2 lig'hters; tmhatiis to gsammeans:tfonr-liehting: gas,

burners; by:;means;.;.of .gasstpilotsm The tinventiong-q ofzthenpresentzapplicatioh.giis-eadapted for :use; in v lighting: systems: similar 1to s that;:disc1osed in: the

former being-how qPatent Now-2,300,156 wand -in,;

thmHghzaslide valve moving; inlresponse -t0 pilot operation; Whichwslide va'lYez-in rturnz-qcontrols a valve in the; gas supply-2m: the 1 burner.

One of} thHObJ'QCBSoOf the present invention is themrovision;o-faimproyed pilot construction such atztheusametime: the gas supplyingythe pilot .is

caused to cool the slidmyalyet Another; object-of the invention is the; provision of an improved housing for the-valve parts especially adapted for economical manufacture.

Another object isthe-provision of improved weight means for -ma-intaining bearing between the moving parts of the slide -valve.-

A zfurtherobject is -theaprovisio-n of improved meansformounting small tubular conductors inthe val-ve-bod-y Other objects, andieature will pear aswe proceed;-.withthe description of that 4 embodiment of theinventionwvhich, for the pur-' poses tof th'e present "application; -wehave illus g trated in -the accompanying drawing, in-, which Fig -l is-a top --plan view iOf'y'a lighte1=assemblyembo dyingatheyinvention.

Fig. 2 is .an-lelevational view -ofthe vsamew I Fig-s 3 is .a transverse-sectional view-taken sub stantiallyion the line- 393 of Figwl.

Fig.,- 4 is want-end elevation- Figs; 5 hand -6 aretransverse". sectional wiews taken,- substantially. on the -lines -5- 5land .66

respectivelyoflFig. 1 1.

In, theidrawing the bar :which forms-- the body a members and main ,support for ltheg-device; -1sshown at I 0. about -half itslength ,tcomprisesa -4 -latera1- enlargement II vonHonet-side and-ion;- them other This bar is a casting' whichvfor hasan "enlargements! 5 in which. the; slide: valve is housed, vas,-wil1. present1y appear.

Near the oppositemendithe. surface of theflbah I0 ,,'is elevated somewhat,-.and, fluponnthis ale-l r eiplik e:.;in .e;r xe tr m t i -,o 5a ermal ember: H Which;- is :a fi t s r pzo meta e -3' mblyi v n ua er ntwc fwie tw swan-:

rc c tt t o bar lflh m lr ember. 1.1

is thus spaced slightlyaboyebar l0 and extends; to .the outer endr'of ;:lhe; 1atter,- where it enters plicatiom'ofa heat, Iromthe pilot; operates the slidezyalva in the; housing,

The-enlargement"! I; isbored out lengthwiseas;indicated; at l8,qand-verticallyasindicated at l9.-4- A gast-sup plypipe;20;is :suitably mounted in 1 the bore l 9. Ingeases, where it 'is more convenient-to hayerthegassupply-enter, the; device horizontally the opening l9 may be omittedand the drilled opening :l 8-waybe fcontinued through the outer} end of the-,bar ,4 B the; gas; supply pipebeing connected :withthe latter openingv. In either casel zthel-gas Sfiowing through the ;-device to the pi1ot is,-caused,;t0 -pass through a .bore 'formedinthe; bar-t I 0-; adj acent-lthe housing I 5-=in -which-- theeslide :valve is mounted Hand-the flowing gas p ex-entsiflca considerablecooling effect. which -is trarlsmittedtthrou hwheuhousing to the valvea. itselfm,Fnom ;bor e -I8-,thereextends a pilot tube 2 I which parallelsbar l 0 ,and thermal member? H Tins-pilottube;v is "made sot-metal that is high1y .resistant,v to heat and; chemical action, and is accordingly expensive, -;so i that-its short- 30, -,-length presents the advantage of; economyp In 2 this pilot tubatheEB area seniesgoftsmall ports- 22 arranged to rdirect small 'fi imesupwardly at an angle qagainststhe-radjacent edge of the thenmalememben l 1-. t Gassq rom an end port 22;;is .;;;ignited bMfiZLmQfOHOWiIIg a slit 23 in the tube;

' which slit is connected with a JargenportZL-z; the flame irom which servesltotlightthe mainburner; not,.sh o,wn. a A short slit 2i connects port- 24 witha ,port 26 from;- which i a stream of gas; is adapted ;.to ,fiow .,to wardan. electric heating; coil;-2,1,by.,meal s,0f whiohthe-pilol is ignited.

The ends of; coil -21 .are mconnected through bindingmposts 28, ,and 29zswit-h metallic -;rib-bon conductors 30 and 3| which are suitablyin ,ssulatedlwm As; herein: shownt,-the insu1ation--may be in thetorm of la continuous=bar-32 of porcelain ori othertmatenial having-cheat: resistant quali tiesw This :bar. is provided with longitudinal passages,.,=through 1 which 1: the conductors are tthreadedh At the reanoftban 32meach conductor"- is benttdown at a .,45 anglegandt-thenenters anothfi l insulation bar 33 of similar character which exten fitdownwardly parallel to the pipe 20m The inner enmofs-banfizrqis supported by conductors vated portionwe secureby means .of rivets lfiafifitzfillnandfilyqWhi1esthe o t nq a consisting of a head 42 and a shank 43.

bracket 34 which is secured to the housing l5 by a screw 35.

It will be obvious that when gas is caused to flow through the pilot and current is turned into the circuit of which the conductors and 3| form a part the coil 21 will become incandescent and the gas flowing from port 25 in the end of the pilot tube will be ignited. The flame will then travel to the gas flowing from port 24 and thereafter through slit 23 to the small ports 22 which will be ignited successively one after another.

The edge of thermal member I! which is subjected to the flame from ports 22 is partially isolated from the balance of the thermal'member by a series of holes 36, and the opposite edge surface is increased in area by serrations 31 in order that any heat which may be transmitted across the thermal member may be the more readily dissipated.

In the enlargement l5 at the outer end of bar ID we form an opening which extends through the bar from top to bottom in three diiferent concentric bores, produced preferably by a sinble stepped drill. The upper bore 38 is the largest, the middle one 39 is of intermediate size, and the lower one 40 is the smallest. The upper and intermediate bores are open toward the front end of the device, owing to the fact that the enlargement I5 is cast with a cut-back 4| through which the drill projects. The smallest diameter portion of the drill of course enters the metal first and acts as a pilot for the larger diameter portions, thereby preventing the drill from running out.

In the bores 40 and 39 We mount a valve body Ports 44 and 45 communicate with 1 tight fit within the bore 38, we may guard against possible dislocation of the cover by an In this through the shank 43 between and transversely to the sockets 48 and 49. Tubular conductors 5| and 52 are set into these sockets, the fit being snug, and a small hardened pin 53 is driven through the transverse hole 5|]. The pin 53 being slightly larger in diameter than the distance between conductors 5| and 52 deforms the adjacent walls of the latter and thereby locks the conductors in place in their sockets.

A valve piece 54 slidably engages the upper surface of valve head 42. It is provided with a central port 55 of a size suflicient to bridge ports 44 and 45, or ports 45 and 46, depending upon the position of the valve piece. The latter is caused to move from its normal position illustrated in Fig. 3 to one inwhich the ports 45 and 46 are bridged by a deflection or warping of thermal member M which has a restricted neck 56 extending through the lateral opening in the housing member l5, while beyond the neck portion there is a ring 51 which loosely receives the valve piece 54.

In order to cause valve piece 54 to bear on val e head 42 we provide a weight 58 having a rounded boss 59 on its lower side in engageent with the valve piece and a central nipple 6|! on its upper side engaged by a hole in a leaf spring 6|. A sheet metal cup-shaped cover 62 is pressed into bore 38 and serves to protect the slide valve and exclude foreign matter as well as to center and balance the weight through the intermediacy of spring 6|. While the cover 52 will ordinarily be held in place securely by its extension 63 on bracket 34 overlying one edge of the cover.

For convenience in mounting the device we form a hole 64 through the thermal member I! and thebar I!) from top to bottom of the device, so that a fastening such as a bolt may be projected through the hole for attaching the device to a support which in most cases would be the main burner itself. The outer end of the device may be carried loosely in any suitable bracket allowing for expansion and contraction of the entire assembly.

The operation of the device, it is believed, will be clear from the foregoing description. Assuming that gas to the pilot and current to the coil 21 are turned on manually or automatically, the pilot will then be ignited electrically and the flames from ports 22 will heat the adjacent edge of thermal member and move valve piece 54 into position to bonnect ports 45 and 46 of the slide valve. This action is utilized through suitable connections, as for example those disclosed in I-Iigley application Serial No. 354,061, above mentioned, to open a control valve in the gas supply to the main burner, after which the latter is ignited by the flame from pilot port 24. During the intended operation of the main burner it remains on so long as the pilot remains lighted. Should the pilot go out however the thermal member would then swing back to its former position and the slide valve would be operated to connect tubular conductors 5| and 52 which would then function to supply gas pressure to shut off the valve in the gas supply to the main burner.

Having thus described our invention, we claim:

1. In apparatus for control of a gas burner by pilot means therefor, a bar having a gas passage integrally formed therein along one side thereof and having a valve body at one end, an elongated thermal member attached to the bar at the end opposite said valve body, said thermal member carrying a valve piece cooperating with said valve body for controlling a second gas passage, and a pilot tube mounted in the bar in communication with said first named gas passage only and adapted to play a flame on the thermal member.

2. In apparatus for control of a gas burner by pilot means therefor, a bar having an integral gas passage extending longitudinally of the bar for a portion of its length, said bar having a valve body therein at one end adjacent said gas passage, said valve body having a separate gas passage adapted to be connected to burner control means, an elongated thermal member attached to the bar at the end thereof opposite said valve body, said ther mal member carrying a valve piece slidable upon said valve body, and a pilot tube mounted in the bar in communication with said first named gas passage only adapted to play a flame on the thermal member.

3. In apparatus for control of a gas burner by pilot means therefor, a bar having an integral gas passage extending from the outer end of the bar part-way toward the inner end thereof. a valve body in the outer end of the bar, said valve body having a separate gas passage adapted to be connected to burner control means, an elongated thermal member attached to the inner end of the bar, said thermal member'carrying a valve piece at its outer end in cooperative relation with the valve body, and a pilot tube mounted in the bar in communication with said first named gas causing it to expand passage only adapted to play a flame on one edge of said thermal member.

4. In apparatus for control of a gas burner by pilot means therefor, a pilot, a valve body and a valve piece movable relatively to each other, means responsive to pilot operation for moving said valve piece and valve body relatively to each other, a weight whose mass is applied over a limited area to the upper one of said valve elements at the center thereof to hold the valve elements in operative relation, and resilient means engaging the weight and opposing tilting movement thereof.

5. In apparatus for control of a gas burner by pilot means therefor, a pilot, a valve body and a valve piece movable relatively to each other, means responsive to pilot operation for moving said valve piece and valve body relatively to each other, a weight whose mass is applied over a limited area to the upper one of said valve elements at the center thereof to hold the valve elements in operative relation, a fixed cover for said weight, and resilient means interposed between the weight and cover for holding the weight centered within the cover.

6. In apparatus for control of a gas burner by pilot means therefor, a valve body having a pair of ports and closely adjacent sockets in register with said ports, tubular conductors in said sockets, and a pin through the valve body between said sockets, said conductors being deformed slightly in their portions adjacent said pin, and said pin and deformed portions cooperating to lock said conductors in said valve body. '7. In apparatus for control of a gas burner by pilot means therefor, a pilot, a bar having at one end an enlargement through which extends a drilled opening consisting of three concentric bores, the largest at the top and the smallest at the bottom, a valve body having a head and a shank fitting the intermediate and smallest bores, a cover fitting'the largest bore, a valve piece in engagement with the upper surface of said head, and means responsive to pilot, operation for mov ing said valve piece on said head.

8. In apparatus for control of a gas burner by pilot means therefor, a pilot, a bar having at one end an enlargement through which extends a drilled opening consisting of three concentric bores, the largest at the top and the smallest at the, bottom, a valve body having a head and a shank fitting the intermediate and smallest bores, a cover fitting the largest bore, a valve piece in engagement with the upper surface of said head, a weight superposed upon said valve piece, said bar having a lateral opening into the intermediate bore, and an elongated thermal member secured to the bar at the opposite end thereof extending through said lateral opening and responsive to pilot operation for moving said valve. piece on said head.

FRANK R. HIGLEY. VILYNN O. BEAM.

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