US1498808A - Torch for plumbers' use - Google Patents

Description

une 24 19% n g W. F. PAGEL TORCH FOR PLUMBERS. USE

Filed April 1v, 1922 2 sham-sneer 1 zml/@71 2? fag@ .Emile p 19241 n A W. F. PAGEL.

TORCH FOR PLUMBERS USE Filed April 17. 1922, 2 sheets-sheet, 2

, Patentes aus@ aa, iena WILLIAM F. PAGEIQ, OFF SYCAMOR, ILLINOIS.

TORCH FOR PLUMBERS USE.

application mea april 17, 1922. semina. 554,246.

To all whom t may-amara.

Be it known that I, WILLIAM F. PAGEIL, a citizen ofthe United States, and resident of Sycamore, inthe county of De Kalb and State of Illinois, have invented certain new and useful Improvements in a'Torch for Plumbers Use, of which the following is a specification.

. My invention relates to improvements 1n torches of the type known as plumbers torches, the object of my invention being to simplify and improve the construction of the torch and particularly of the fuel feed and air control devices.

lA further object is to provide means whereby the entrance end of the fuel delivery tube within the tank will always be immersed in the fuel regardless of the position in which the torch is laced in while being used, so long as there 1s sufficient fuel in the tank.

My invention resides in a plumbers torch having a closed tank for containing the fuel, which tank is free of openings except one filling opening at the top and which filling :opening is adapted to be closed by the feed devices for the burner. Furthermore the burner, feed devices, and pump are arranged in a unitarystructure so that the torch as a whole consists only of this unitary structure and the tank.

A further feature 'of my invention is found in a flexible fuel delivery pipe which depends within the tank and which is adapted to fall to such a position relative to the position of the tank that its inlet end is always immersed in the liquid fuel in the tank so long as there is sufficient fuel to reach the lower end of the pipe. In other words, if the tank is tipped out of its normal position, the feed ltube being flexible, its lower inlet end hangs downwardly and is i immersed in the fuel.

A further feature of importance relatesv to a simple safety valve connected with the air passage which is adapted to prevent an excessive pressure being applied to the tank and in combination with this safety valve, I arrange a manually operable relief valve which is adapted to release all pressure from the tank at times when the torch is not in use.

A particular object of my invention is to provide a plumbers blow torch so constructed that the fire hazard incident to the use of such torches is eliminated.

My invention will be more readily understood by reference to the accompanying drawings forming part of this specification, and in which:

Figure 1 is a fra mentary vertical central sectional view o the torch, parts thereof being shown in side elevation;

Figure 2 is a fragmentary vertical transverse sectional vie on the line 2 2 of Fi re 1;

igure 3 is a detail sectional. view of the inlet end of the flexible feed tube;

Figure 4 is a fragmentary view similar to Figure 1 showing a'slight modification of my lnvention.;

Figure 5 is a horizontal sectional view on the line 5-.-5 of Figure 4;

Figure 6 is a fragmentary sectional view on the line 6 6 of Figure 5, and

Figure 7 is a horizontal sectional view on the line 7 7 of Figure 1. l

In said drawings, 1. represents the tank of the torch which 'is made up of an outer or main sheet metal member 2 in the form of an inverted deep cup and a sheet metal bottom 3 which is curved upwardly within th"e lower end of the mainmember 2 so that it will withstand the pressure which is used in such torches, the lower ends of these two members being rolled together and soldered, as slliown at 4, providing a closed sheet metal tan The tank has a central opening 5 in .its fiat upperwall 6. This opening receives a nozzle 7 depending from a. cup member 8, the nozzle being externally threaded to receive a locking nut 9 within the tank for securing the cup in position. This locking nut is adapted to be soldered to the shell to prevent possible leakage at this point. The cup 8 is provided with an external upwardly extending circumferential flange 10 to assist in filling the tank with liquid fuel. The nozzle 7 has a central bore 11 forming a filling opening and which is internally threaded to receive a threaded stem 12 on a head memberl. This member is provided with a flange 14 which carries a suitable packing washer 15 adapted to' contact with a concentric'rib 16 on the cup so that when the head 13 is secured with the stem 12 in the threaded opening l1, the packing washer l5 and concentric rib 16 effect the hermetical sealing of the tank at this point. The niember 13 extends horizontally, one end being provided with an internally threaded nozzle l 17 for rivin a pump cyliuuder 18 and the opite en having an integral lelbow 19 formed to receive a connecting vpipe 20 upon the upper end of which is arranged the burner 21 of the torch. Below the pump with a central'vertical plassage 28 which extends vdown through e stem 12 for delivering air from the pump to the tank and at the upper end of this passage the member is provided with a valve chamber 29 within which is arranged a spring-pressed check valve 3() and a small passage 31 leads from the pump cylinder to the valve chamber, said passage 31 being closed 'by the valve30. The valve chamber 29 is closed at its outer end by a screw plug 32 and l provide a suitable spring 33 for holding the valve to its seat and preventing the escape of air from the tank back to the pump. The member 13 is also provided with a fuel feed delivery passage 34 which extends outwardly to the elbow 19 for delivering fuel to the burner-and also extends downwardly through the stem 12. For the purpose of feeding -thefuel from the lower part of the tank to said 'feed paage, l provide a Hexible delivery tube 35 having a threaded connection 36 at' its upper end adapted to be screwed into an enlarged opening 37 at the lower end 0f the feed passage 34. Upon the lower end of the delivery pipe 35 l secure a head 38. This head is in the form of a cap having a central inlet opening 39 in its lower wall 40. rllhe llower wall 40 is spaced from the extreme lower end of the tube and in this spacel provide a ne wire screen 41 for preventing any dirt or dust entering the 4tube 35. The cap 38 not only provides means for holdingthe screen 41 in position but also provides a weight for the lower end of the feed tube which causes the lower end of the feed tube to fall by gravity if the torch is tipped, and in thus falling, the lower end is carried into the liquid, as indicated in dotted lines in Figure 1 wherein the dotted line 42 represents the level of the liquid when the torch is tipped.

ln filling the torch the member 13 with all of its attached parts is unscrewed and removed and then the liquid can be poured into the cup 8 and flows through the threaded openin 11 into the tank.

llrprovi e means for automatically relievaccesos when' applying pressure by means of the air pump.

.spring pressed safety valve 43 closing one end of a transverse passage 44 connected with the passage 28 through which air is delivered to the reservoir. rllhis valve is mounted in a valve chamber 45 on vthe member y13 and which is closed at its outer end by a screw plug 46. The chamber` 45 is provided with a suitable vent opening 47 rlhe opposite end of the transverse passage 44 is closed by a needle valve 48 which is manually adjustable to close or open the passage 44, and having a suitable vent opening 49 provided topermit the free relief of the tank when the valve 48 is` unseated. The safety valve 43 ,automatically relieves the reservoir of excessive pressure and the rlhis relief means consists of a valve 48 is used to relieve the reservoir of all pressure when the torch is not in use.

lt is to be notedthat there is but one opening intothe tank which has to be sealed in contradistinction to the many openings in torches as heretofore made. Further it is tobe noted that all the machine work and assembling is confined to a unitary structure including the burner, the delivery tube, the pump, the handle, and the Vvarious valves thus greatly simplifying the manufacturing operations and reducing the cost of such devlces.

The above advantages are also found in the form of my invention illustrated in Figures 4 to 6 inclusive.

ln this modified forml of my invention l have shown the same form of unitary burner and handle member with some distinctions of importance.

rlhe most noticeable of these is the vertical arrangement of the air pump 50 instead of the horizontal arrangement shown in Figure 4 1. l provide the head member 51 which is ysimilar to the member 13 in Figure 1, with A threaded head or collar 53 adapted to be received in and to close the upper end of the hollow handle.y rllhe pump cylinder does not lill'the hollow handle and from the upper part of the hollow handle an air delivery passage 54 leads through the member 51 and through the mounting nozzle 7 into the reservoir as in the former instance. As in the form shown in Figure 1, l provide a flexible tube 35 through which the liquid fuel is delivered to the burner through the delivery passage 34.

ll provide .means for regulating the dow of the fuel through the fuel delivery passage 34 which operates to cut the flow down to an amount just sufficient to keep the burner hot at times when the maximum ame. is not revalve enters the passage 34 and is ada ted to close off same more or `less in an o vious manner. The valve 55 1s ordinarily set to l allow just sufficient ilow of fuel through the passage 34 to keep the burner hot and I pro vide means vso t veniently and readily o en the valve to allow a sufficient flow of'fl maximum ame. This means consistsA of a lever handle 56 ixed on the stem of the valve 55 by. a set screw 57.4 The lever 56 projects along side of the member 51 toward the handle 52 and has a thumb piece 58 conveniently located to receive the thumb of the operator when a'sping the handle 52 with the right handg.r

By swingin the lever 56 toward the member 51 the va ve is opened and I provide a spring 59 arranged between the lever 56 and the' member 51 to normally maintainv the valve 55 at the minimum iiow position. The spring 59 is held on a stem 60 which-is rigid with the l ver 56 lwhich stem projects and strong enough for all or i:

through an openg'ng 61 in the member 51.

Sometimes it 'is desired to arrange the valve 55 to remain at its maximum iiow position and I accomplish this and relieve the operator of -continuously holding the valve open by providin a projection 62 in the openin 61 adapte to be received in a notch 63 in t e stem 60 when the stem is pushed through the opening 61 far enough.

The Sw/inging of the lever 56 will cause j the projection 62 to engage in the notch 63 the parts being yielding enough to permit.

this engagement and when it is desired to release the stem and permit the valve 5.5 to close to its minimum ow position, 1t 1s merely necessary to force the free end of the stem away from this projection by a slight pressure on the stem.

To provide a fine adjustment of the valve 55 for normal low or minimum fuel feed, I provide an adjustable nut 64 on the free end 65 of the stem 60 and adapted to contact with the side'of the member 51 to limit the throw of the `lever 56 by the spring 59. By adjusting the nut 64 in or out as the case may be, the valve 55 is obviously adjusted for more or less minimum feed as may be necessary. v

The modified form of my invention is also provided with thel transverse passage 44 controlled by a safety valve and a manually operablerelief valve as in the form first described.

While the connection o'f the unitarystrucand the several connections, devices and valves, with the reservoir, as described, is

at the operator can con-,

el -to maintain the J- relief passage.

usa e, I have found that it is advantageous4 shown in Figure 1, or the hollow form shown in Figure @rigidly to the reservoir. This bracing means consists of a brace projection 67, preferably integral with the lower end 66 of the handle, extending inwardly from its inner side or edge toward the reservoir, its end being provided with thin lateral projections 68 curved around the reservoir. I provide a flatsheet metal band or ring 69 extending entirely around the reser-` voirin the. form ofa hoop, the ends 70 of the ring being secured to the two rejections 68 at the inner end of the brace 6g by rivets 71. The hoop or ring 69 fits on the outer cylindrical surface of the reservoir and can be rotated thereon as the head 13 or 51 is mounted on the reservoir by screwingv the nozzle 7 into the threaded openin 11.

It will be obvious that when t e nozzle 7 fof the unitary structure is screwed into the `reservoir the unitary structure is rigidly braced and cannot accidentally strain the connection of these two members even should the torch fall andl strike upon a projecting part ofthe unita structure.

As many modi cations of my invention will readily suggest themselves to one skilled in the art, I do not limit or con vention to the specific details of construction herein shown and described.

I claim; 1. The improvements hereindescribed comprising a plumbers torch havin a fine my inclosed sheet metal tank provided with ut one opening, said openin at the top of the tank, an ajunltary structure comprising an air pump, a burner and connections adapted to be secured in said opening, said structure having a horizontally extending, rigid, integral bracket arml for supporting the pump.

2. In a plumbers torch having a closed tank provided with 'a filling opening at its top, a unitary structure including a threaded stem forpclosing said opening, an air pump carried by said stem and passages provided in `the stem for delivering air' from the pump into the tank, a relief passage in said structure between the ump and the tank and connecting with the open air, and a spring pressed relief valve cmitrollingv said being arranged f `3. ln .a plumloers torch having a closed tank provided with a lling opening at itsl top, a threaded stem forclosing said openl ing, an air pump carried by said stem and a assages provided therein for delivering air rom the pump into the tank, and a inanually operable relief valve arranged betweenthe pump and the tank as and for the purpose specied. v v

d. ln a device of the kind described, a miitarystructure carrying an air pumdp and a burner and having a screw threade stem for mounting it upon a fuel tank, the structure having a threaded socket for receiving 16 the pump barrel, and provided with a ring support for engagement with the barrel of the pump between its ends, as and for the purpose specitied. l

5; The improvements herein described wcomprising a plumber-s torch having a closed sheetA metal tank provided with lout one opening, said opening being arranged at the top ol the tank, and a unitary structure comprising an air pump, a handle, and connec- 25 tions adapted to be secured in said opening, said structure having a horizontally exten ing, rigid, integral hracket arm for supportingthe pump. I

6. The improvements herein described 30 comprising a plumbers torch having a closed sheet metal tank provided with lout one opening, said opening being arranged at the top of the tank, and a unitary structure comprisin an air pump, a handle, the necessary 35' contro valves and a feed pipe adapted to depend within the reservoir of the torch, and means for rigidly `hracin the unitary structure to the reservoir whi e permitting the rotation thereof for mounting and ded@ mounting it.

neeaeoe atively to thel reservoir, such bracing pen.

mitting `the free rotation of the unitary structure for mounting and demounting.'

8. 'lhe improvements herein descrihed comprising a plumbers torch'having a closed sheet metal tank provided with hut one opening, said opening being arranged at the top of the tank, and a ry structure comprising an air pump, a han le adapted to depend alongside the reservoir, the lower en 'of the handle having a rigid projection extending toward the reservoir and a ring jtting uponthe reservoir and rigidly secured to said projection for bracing the unitary structure and permitting its free rotation, as and for the purpose specied.

9. ln a torch of the kind derihd, a .l.: havin a filling opening in its top, a Klug for sai opening, an air pump arranged orizcntall and supported upon said plug,

`said plug orming part of a unitary structure which carries the hui-ner for-the torch, and a `iiuel delivery pipe secured to theinner end of the plug and adapted to depend in the tank, an air pump arrel screwed into a threaded opening in said plu and a horizontal' extending bracket provi ed with a ring for surrounding the pump barrel and retaining it in position. f

Signed at Chicago, lll., this .llth day of apra, iam,

wnimnn' n. raam...

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