US931197A - Safety gas-cock. - Google Patents

Description

O. R. HASTY.

SAFETY GAS COCK.

APPLIOATION FILED JUNE 29,1908.

Patented Aug. 17, 1909.

A rrmyy,

,mnaew. a. emu co, PHOTO-LITHDGRAPHERS, WASHINGYON, n. C.

UNITED STATES PATENT OFFICE.

OTIS RIDGEWAY HASTY, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, TO I'IASTY MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SAFETY GAS-COCK.

No. 931,197. Specification of Letters Patent.

Application filed June 29, 1908.

Patented Aug. 17, 1909.

Serial No. 441,000.

To all whom it may concern: of the thumb leaf; and F ig. l is a side ele- Be it known that I, O'ITS Itmcnwny HAs'rY, vation of the lower portion of the gas cook a citizen of the United States of America, casing, showing the annular recesses around residing at Chicago, in the county of Cook the lower portion of said casing in which reand State of Illinois, have invented a new cesses the upper arms of the thumb leaf and useful Safety Gas-Cock, of which the work, and also showing the tapered passages following is a specification, reference being connecting the said annular recesses. had to the accompanying drawings, illus- Like characters refer to like parts in the trating same. several figures.

My invention relates to gas cocks or In the drawings, 1 is the valve casing, valves, my principal objects being to pro- 2 is the gas jet connected with the valve vide a safety gas cock which cannot be accasing preferably as shown, and 3 is the cidentally turned on after the gas has been inlet passage for the valve. In the inlet turned ff; to provide 311 i np 'oved c011- PztSSilgB 3 and the outlet passage t Of the struct-ion in such a gas cock or valve wherevalve casing are placed wire gauze cupby the latter is absolutely tight either when shaped portions 5 5, preferably as shown, the gas is turned off or on, thereby doing to prevent dust, dirt or foreign particles away with any leakage of gas which is so from entering the interior portion of the common in ordinary gas cocks; to provide valve, either from the inlet 3 or from the improved means for protecting the valve outlet 4. These wire gauze portions 5 5 are from dirt or foreign particles, thereby invery advantageous in keeping the valve clean or ising the life of the valve and also its and thereby doing away with the ordinary seiwiceability and efi'iciency; and to provide Wearing or cutting of the valve. In valves such a valve which is positive in action that are out of use for a long time, and

a simple in construction and very efficient. in valves that are disconnected from the Other objects will be apparent from the pipe and kept in a store room for some time, following specification. the Wire gauze portions 5 5 are very de- It is well known that ordinary gas cocks sirable. can be accidentally turned on in various Extending transversely through the valve ways when the gas is supposedly shut off, as casing 1 is a plunger 6 having its upper end by something striking or rubbing against ground with a taper 7 adapted to tightly the thumb leaf. Such gas cocks are very fit in a ground plunger seat 8 in the valve dangerous. casing when the valve is shut off. In the The gas cook of my present invention is top end of the plunger 6 is drilled a hole constructed so that it cannot he accidentally 9, preferably as shown, to meet a transverse turned on after being turned off, by anyhole 10 in the plunger as shown in Fig. 1.. thing striking or rubbing against the thumb From the inlet passage 3 of the valve caslcaf, it being necessary to give the thumb ing 1 is drilled a hole 11 to the ground leaf an upward movement, or a lcngituditapered surface 8 of the casing 1. From ual movement, before it can be turned so as the outlet passage i of the valve casing 1 to turn the gas on. In the safety position is drilled a hole 12 to the opening for the or the shut-off position the thumb leaf may plunger 6. When the plunger (5 is seated be turned as much as desired without turnin the -alve casing so as to shut off the iug on the gas in the least. The advantages the ground tapered surface 7 of the plunger of such a cock will be readily seen. tightly closes the hole 11, and the cylin- In the accompanying drawings illustratdr'ical surface of the portion of the plunger iu the preferred form of my invention, below the tapered portion 7 closes the hole Figure 1 is a side view of the gas cock or 12. hen the plunger 6 is raised from its valve of the invention. with portions shown seat to the position shown in dotted lines in in cross-section to show the interior construc- Fig. l, the hole 11 is opened and the hole tion of the valve; Fig. 2 is an edge elevation 10 is moved to the horizontal plane of the of the valve plunger and thumb leaf shown hole 12. Now if the thumb leaf is turned in Fig. 1; Fig. 3 is a cross-sectional view of lengthwise of the gas pipe to which the the thumb leaf, taken on line a: of Fig. 1, valve is connected, the hole 10 in the plunger showing the taper on one of the upper arms will register with the hole 12 in the casing O ably an asbestos string so as to establish an open passage through the. valve from the inlet 3 through hole 11, up between the tapered portions '7 and 8 which are now separated, down through the 5 hole 9 in the plunger, through one end of the hole 10, and through the hole 12 to the outlet passage 4. Thus a passage for the .gas is provided through the valve to supply the jet 2 with gas when it is desired to=burn same.

10 Around the exterior cylindrical surface of theplunger 6 is provided a small groove '13 in the plane of the longitudinal axis of-the hole 12, so that when the plunger 6 isin its raised position there will always be a small passage from the hole 10 to the hole 12 in whatever position the plunger 6 may be turned. Thusthis small passage or groove 13 always provides an escape for thegas from the valve to the jet 2 when the plunger 6 is in raised position, to keep thegas from being entirely turned out in whatever position the plunger 6 may be turned.

On the bottom end of the plunger 6 is provided a thumb leaf 14E preferably secured to the slotted end of the plunger 6 by a pin 15 as shown. This-thumbleaf lat is provided with two upwardly extending arms 16 16 adapted to fit in theannular recesses 17 or 18 on the lower portion ofthe valve casing 1 anditobe turned around in these recesses 17 and=18 to any desired posi tion. 011 each side of the lower portion of=the valve casing 1 is provided apassage 19 connecting theannular recesses 17 and 18, as shown inl ig. t, the upper corner por tions of theseipassages 19 being beveled as at 26 and the lower corners of theinwardly extending portions 21 21-of the arms 16 16 being beveled'as at 2 so that the end por-;

4o tions 21.21 of the arms 16 16 will readily,

.pass from'the annular recess 17 to the an-% nular recess 18.

atround the plunger 6 at the lower end of'the valve casing 1 is placeda ring 23;

having its upper interior portion beveled as sprin 28 is for the purpose of keeping the ring 23'tight against the lower end of the; valve casing 1 to press: the packing 26 tightly around the'plunger 6 and thereby preventany escape of gas'from the lower portion of the gas cock, and also forithe purpose of holding'the plunger 6 down in the valve seat so-that the ground tapered surfaces 7 and 8 tightly fit each other when the inwardly extending portions 21 21 of the .65 arms 16 16 are in the lower annular recess 18 of the valve casing. On the upper end of the plunger 6.is placed another coil spring 29 which is suitably held in place by a cap screw 30 screwed down tightly on the upper portion 31 of the valve casing 1 as shown. This spring 29 also acts on the plunger 6 to force the latter down into the valve seat when the inwardly extending por- 'tions 21 21 of the arms 16 16 are turned so that they may be forced through the passages 19 19 in the valvecasing from the upper annular recess 17 to the lower annular recess 18.

When the gas cock is turned off, that is, when the gas is completely turned off, the portions 21 21 of the thumb leaf 1% are in the annular recess 18, beingheld in this position by coil springs 28 and.29. In this position the thumb leaf 1 1 may be turned around a. much as desired without turning on the gas inthealeast, because the ground tapered portion 7 tightly closes the hole 11 so as to prevent any escape of gas therefrom. When it is desired torturn'the gas on,.that is, to open the gas cock, the thumb leaf 1% turnedcrosswise of the gas pipe so that the portions 21 21 are positioned directly under the: passages 19 19, and'then the thumb leaf .ltis forced upwardly so that the portions .2121pass throughrthe passages 19 19into theannular recess 17, as shown in dotted linesat 32 in Fig. 1. In this position the gas may be lighted at the jet 2 because an escape for the gas is provided through the valve tothe jet 2 by the ground surfaces 7 and 8 being now separated and the annular groove 13 registering with the hole 12, due to the plunger 6 being now in its raised position or in the position shown in dotted lines in Fig. 1. Now if it is desired to turn :the gas on full the thumb leaf 14. is turned lengthwise of the gas pipe or to the position shown in dotted lines 32 of Fig. 1, whereuponethe hole 10 in the plunger 6 registers with the hole 12 in the valve casing 1 so as to completely open the gas passage through the valve from the inlet 3 to the jet 2.

It will be understood that as the thumb leaf 1 1 is gradually turned lengthwise'of the gas pipe the gas will be gradually turned on, due to the fact that the hole 10 in the plunger 6 gradually comes into aline ment with the hole 12 in the casing 1. If it is desired to turn the gas partially oil", the thumb leaf 14 is turned in either direction a slight amount, less than degrees. which-moves thehole 10 in the plunger 6 partially out of alinement with the hole 12 in'the casing 1 and thereby partially closes the gas passage through the valve. If a force is exerted upwardly on the thumb leaf 14 the'latter may be'turned around as much as desired whilethe portions 21 21 are in the annular recess 17, without entirely shutting 01f the gas, due to the annular groove 13 around the plunger 6 which always supplies a small amount of gas through the hole 12 to the jet 2 when the plunger 6 is in its raised position. If it is desired to shut the gas oif entirely the thumb leaf 14 is turned crosswise of the gas pipe until the inwardly projecting portions 21 21 are positioned above the passages 19 19 in the valve casing 1, whereupon the coil springs 28 and 29 force the plunger 6 down into the valve seat and the portions 21 21 through the passages 19 19 into the lower annular recess 18 in which position the ground tapered surfaces 7 and 8 tightly fit each other and thereby completely shut off the gas as hereinbefore described. In this latter position, if anything accidentally strikes or rubs against the thumb leaf 14; and turns same it will not turn on the gas in the least because the plunger 6 is not raised by such turning so as to open the valve. The only way the gas can be turned on is to turn the thumb leaf so that the inwardly projecting portions 21 21 may be forced up through the passages 19 19 into the annular recess 17 of the valve casing, and then force said portions 21 21 up into the annular recess 17. It will readily be seen that it would be a hard matter to accidentally move the thumb leaf in this manner so as to accidentally turn on the gas. lVhen the gas is fully turned off the person turning the gas off will be positive that it is completely turned oil as soon as the thumb leaf 14: drops down to its lower position, that is, to the position in which the inwardly projecting portions 21 21 rest in the lower annular recess 18, the shut-ofl action of the valve being very positive. lVith the ordinary gas cocks the thumb leaf may be turned crosswise of the gas pipe and the gas may be supposedly turned out, but on letting loose of the thumb leaf let the gas may be easily turned on, especially if the thumb leaf 14 has a rather free action. This is not the case with the gas cock of this present invention.

With the ordinary gas cocks, leakages are very common, and if the parts are tightened up so as to prevent the leakage they soon wear and become loose, or else the turning on and off of the gas loosens the parts and thus produces leakage. In the gas cock shown in the present invention such leakages are entirely eliminated, there being no chance of a leakage at the top of the valve when the latter is open, if the cap 30 is properly screwed down, or at the bottom of the valve if the packing 26 at the lower portion of the valve is in proper shape. The uniform spring pressure on the plunger prevents the tapered portion 7 thereof from wearing in the valve seat and thus becoming loose, as it would if tightened up by the ordinary screw. This uniform spring pressure consequently lengthens the life of the valve, because it does not cut, gives a tightly closed valve when the plunger 6 is down in the valve seat, and provides a valve which always requires practically the same force to operate the thumb leaf.

.1 do not wish to limit this invention to all of the exact details of construction herein shown, as many modifications may be made in same without departing from the scope of the appended claims.

lVhat I claim as my invention is:

1. A valve of the character described, having an inlet passage and an outlet passage, a plunger forming an obstruction between the said passages to disconnect same from each other, a passage through a portion of the plunger, means whereby longitudinal movement may be given to the plunger to connect the inlet passage with the passage in the plunger, and whereby the plunger may be then turned to connect the passage therein with the outlet passage.

2. In a valve of the character described, an inlet passage and an outlet passage, a plunger normally closing the said passages, a passage through a portion of the plunger normally disconnected from the said inlet and outlet passages, means for giving the plunger longitudinal movement to connect the said inlet passage and the said outlet passage together through the passage in the plunger, and means whereby now turningthe plunger regulates the size of the opening through the valve.

3. A valve of the character described, having a transverse opening therethrough, a portion of which is tapered to form a valve seat, an inlet passage from one end of the valve to the valve seat, an outlet passage from the other end of the valve to the said transverse opening in the valve, a plunger extending through the transverse opening in the valve and having one end thereof tapered to snugly fit the valve seat and thereby close the said inlet passage, the said plunger having a passage therethrough entering the tapered end thereof and extending out of the side thereof, an annular groove around the plunger intersecting the said side opening in same, means for moving the plunger endwise to raise the tapered portion thereof out of the valve seat and connect the said inlet passage through the passage in the plunger and the annular groove around the plunger with the said outlet passage, whereby a small passage is formed through the valve, and means for now turning the plunger to cause the said side opening therein to gradually come into alinement with the said outlet passage whereby the passage through the valve is gradually increased, for purposes substantially as described.

4. A valve of the character described, comprising a valve casing having an inlet &

passage and an outlet passage therein, a plunger for connecting the inlet pas with the outlet passage as desired, a pair of annular recesses around the lower portion oi the valve casing and passages connecting the said recesses, a thumb leaf connected with the said plunger and having arms adapted to lit in either of the said annular recesses and to be moved from one of the, said reresses to the other this-nigh the said passages connecting the said recesses, whereby the said plunger may be either raised or lowered and turned around in either posh 'tion. means whereby the plunger must be raised and then turned in order to open the valve, the said. arms ot the thumb leaf being then in. the said. upp-s. r anmilar recess of the valve using, and a spring; member acting}; on the plung a to autonuitieally lower same when the thumb leaii is turned so that the arms thereoi are permitted to pass through the said passages connecting the said annular recesses oi the valve casing, for purposes substantially as described.

5. it valve of the character described, h a ving a plunger tor openii ig or closing a passage through the valve as desired, a thumb piece associated with the lower portion of the plunger for operating same, a packing box around the lower portio-i-i oi the plunger for preventing;- any leal-rap'e therearound, a. coil spring encircling the low end of the plunger and acting between the thumb piece and the packing box to keep the latter properly adjusted and to art, downwardly on the thumb piece, and another coil s 'iring acting on the top end of the plui er in conjunction with the first mentioned coil sprii-ie' to automatically lower the plunger when the valve is closed, substantially as (lQSCLilJQCL (3. A valve having a plug. means flior ing' the plug a longitudinal and a rotary movement to open the valve, said means being tree to be turned clear around when the valve i closed without tending to open same.

7. it. valve luviug a plunger titted in a valve seat, mechanism whereby the plunger must be raised out of the seat and then turned to fully open the valve, and means to]: giving the plunger such movement, the said means being tree to be turned clear around when the vilve is closed, without opening same.

8. it. valve haviirq a plunger titted in a valve seat, a thumb piece attached to the plunger for raising same out of the valve seat and for rotating the plunger, and mechanism whereby the said thumb piece m be freely turned whether the plunger is raised from the 'alvc seat or seated in the valve seat, for purposes substantially as described.

9. A valve having a plunger, said plunger having an opening therethroupgh from one end thereof to the side thereof, means for giving the plunger a longitudinal movement to bring only the opening in the end of the plunger into the valve passage, and means for giving the plunger :1 separate rotary movement to bring the opening in the side of the pluno'er into the valve passage, for purposes submiantially as described.

10. A valve having a plunger fitted in a valve seat, an opening through the plunger from one end thereof to the side thereof, means for raising the plunger out. of the seat.- to connect the inlet passage of the valve with the passage in the plunger at the end of the plunger, and means for now turning the plunger to connect the outlet passage of the valve with the passage in the plunger at the side of the plunger, whereby the valve opened.

11. A valve having a plunger fitted in a alve seat, a passage through the plunger from one end thereof to the side thereof, means for raising the plunger out of the seat to connect the inlet passage of the valve with the passage in the plunger at the end of the plunger, means for now turning the: plunger to connect the outlet passage of the valve with the passz'ige in the plunger at the side of the plunger, whereby the valve is opened, and means for automatically seat ing the plunger when same is turned to close the valve, for purposes substantially as described.

12. A valve having a plunger fitted in a seat, said plunger having a passage there through from one end thereof to the side thereof, means for raising the plunger out of its seat and then turning same to open the valve through the passage in the plunger, said means being free to be turned whether the plunger is raised from or lowered into the seat.

13. A valve having a plunger titted in a seat, a passage through the plunger from one end thereof to the side thereof, means for raising the plunger from the seat and for then turning same to open the valve through the passage in the phuiger, the said means being free to he turned whether the plunger is raised from or lowered into the seat, and means for automatically lowering the plunger into the seat when it is turned while in raised position, for purposes substantially as described.

1 A valve having a plunger, means for giving the plunger a longitudinal and a rotary u'iovement for opening the valve, a packing ring around the plunger and a spring actingthereon to hold same in place, and a second spring acting on the plunger in conjunction with the first n'ientioned spring whereby the plunger is given a longitudinal movement when turned to close the valve, for purposes substantially as described.

15. A valve having a plunger fitted in a a'lve seat, a thumb lea'l by means of which the plunger may be raised out of the seat and turned to open the valve, a packing box near one end of the plunger, a coil spring encircling the plunger and acting between the packing boX and the thumb leaf to hold the packing in place, and a second coil spring acting at the opposite end of the plunger to act on same in conjunction With the first mentioned spring whereby the plunger is automatically seated when turned to close the valve, for purposes substantially described.

16. A valve of the character described having an inlet passage and an outlet passage, a plunger forming an obstruction between the said passages, said plunger having a passage therethrough from one end thereof out opposite sides thereof, means for giving the plunger a longitudinal movement to bring only the opening in the end of the plunger into the valve passage, and means for giving the plunger a separate rotary movement to bring one of the openings in the side of the plunger into the valve passage, for purposes substantially as described.

17. A valve casing having a plunger therein projecting from the casing, annular recesses in the casing around the plunger, a thumb piece connected With the plunger for giving same a longitudinal or a rotary movement, and portions on the thumb piece adapted to extend into the said recesses and to be turned around in one or the other in whatever position the plunger may be placed, for purposes substantially as described.

valve casing having a plunger therein pro .cting from the casing, a pair of annular recesses in the casing surrounding the plun er, pass ges in the casing connecting the said rec-es s, a thumb leaf associated with the plunger for giving same a longitudinal or a rotary movement, said thumb leaf having arms adapted to extend into the said rec a and to pass from one recess to the other dn-ough the said passages, the said arms being free to be turned around in either of the said recesses, and means for automatically throwing the said arms from one o the said reces es to the other through the aid passages when the thumb leaf is turned to close tl e valve, for purposes substantially as described.

19. fr valve of the character described having a plunger suitably fitted in a seat, means for giving the plunger a longitudinal and a rotary movement for opening the valve, the said plunger being adapted to be rrned when seated without tending to open in valve, for purposes substantially as described.

20. A valve having a plug, operating means therefor for giving the plug a longitudinal and a rotary movement to open the valve, and means for automatically giving the plug a longitudinal movement when the valve is being closed, to place the said operating means in safety position, the latter being free to be turned when the valve is closed withouttending to open same.

ill. i valve having a plug, means for givthe'plug a longitudinal and a rotary movement to open the valve, and means for automatically giving the plug a longitudinal movement when the valve is being closed, to place the plug in safety position, the latter being free to be turned when the valve is closed without tending to open same.

A, valve having a plug, operating means therefor for giving the plug a longitudinal and a rotary movement to open the valve, and means for automatically giving the plug a longitudinal movement when the valve is being closed, to place the said plug and said operating means in safety position, the said plug and said operating means being free to be turned when the valve is closed without tending to open same.

at A valve having a plunger seated in a seat, operating means therefor for raising the plunger from its seat and turning it to open the valve, and means for uuton'iatically seating the plunger when the valve is being closed, the said operating means being free to be turned when the plunger is seated in its seat, without unseating the plunger.

i l. A valve having a plunger seated in a seat, means for raising the plunger from its seat and turning it to open the valve, and means for automat cally seating the plunger when the valve is being closed, the said plunger being free to be turned when seated in its seat, Without unseating itself.

25. El valve having a plunger seated in a seat, operating means therefor for raising the plunger from its seat and turning it to open the valve, and means for automatically seating the plunger when the valve is being closed, the said plunger and said operating means being free to be turned when the plunger is seated in its seat, without unseating the plunger.

2(3. In a safety valve, a plug adapted to be placed in a plurality of positions and to be operated in each of the said positions without moving therefrom, means for bolding the plug in each of the said positions, and means for automatically moving the plug from one of the said positions to another when the valve is being closed.

27. in a safety valve, a plug and valve operating means adapted to be placed in a plurality of positions and be operated in each of the said positions without moving therefrom, means for holding the plug and valve operating means in each of the said positions, and means for automatically moving the plug and valve operating means from one of the said positions to another when the valve is being closed.

28. In a-satety valve, a valve plug fitted in a seat and adapted to be placedin a plurality of positions and to be turned in: each position, means for holding the plug in .each of the said positions, and means for automatically throwing. the plug from one position to another when the valve is being closed.

29. In a safety valve, a plug and val-ve'operating means adapted to be placed in a plurality of positions and to be turned in each position, means for holding the plug and valve operating means in each of the said positions, and-means for automat ica'lly throwing the plug" and the valve opcratingmeanstrom one position to another whenthe valveisbeing closed.

30. A valve having aplunger, said plunger having a" passage therethrough opening at different portions of the plunger, means for giving the plunger a longitudinal movement to bring only one of the openings of the plunger into the valve passage, and means for then giving the plunger a rotary movement to bring the other opening of the plunger into the valve passage, for purposes substantially as described;

31. A valve having a casing with a fluid conduit therethrough and with a plurality of annular recesses, said recesses being connected by suitable passages, a valve plug, a thumb piece therefor having arms cooperating with the said recesses, whereby said thumb piece-may be held in a plurality of positions, said'thumb piece in one of thesaid positions being incapable of aiiecting the flow of" fluid through the-said conduit and being'adapted to move the plug to open the fluid conduit when inanother of said'p'ositions and being adapted to beturned in each of the said positions, dllCllllGilllSitOl' automaticallythrowing the thumb piece from one of the said positions to another when the valve is being closed.

32: A valve having a casing with a fluid conduit theretlirouglr and with a plurality of annular recesses, said recesses bcingw-onn'ec'ted-"by suitable passages, a valve plug, a thumb piece therefor having arms coi-iperut ing with the said recesses, whereby said thumb piece may be held in a plurality of positions, said thumb piece-in one o'f'the said positions" being, incapable of affecting the flow of tluid through the said conduit and being capa'bleof afl'ectingthe flow of fluid through the said conduit when in another of said positions, and being. adapted to be turned in each of the said positions, and means for automatically throwing the thumb piece fromone of the said positions to another when the valve is being closed.

As inventor of the foregoing l hereunto subscribe my name in the presence oi two subscribing witnesses this 27th day of June. 1908.

OTIS RIDGEVVAY Hr-KSTY.

lVitnesses:

CHAS. E. Hasty, FREDERICK R. PARKER.

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