US764364A - Gas-burner valve mechanism. - Google Patents

Description

No. 764,364. PATENTED JULY 5, 1904. M. W. LEWIS.

GAS BURNER VALVE MECHANISM.

APPLIOATION FILED JUNE 24,1903.

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GAS BURNER VALVE MECHANISM.

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UNITED STATES Patented July 5, 1904.

PATENT OEEICE.

MARVIN W. LEIVIS, OF CLEVELAND, OHIO, ASSIG-NOR, BY MESNE,

ASSIGNMENTS, TO THE CENTRAL GAS APPLIANCE COMPANY, OE CLEVELAND, OHIO, A CORPORATION OF OHIO.

GAS-BURNER VALVE MECHANISM.

SPECIFICATION forming part of Letters Patent N 0. 764,364, dated July 5, 1904. Application filer. June 24,1903. Serial No. 162,890. (No model.)

f0 all whom it may concern.-

Be it known that I, IVIARVIN W. LEWIS, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio,

have invented a certain new and, useful Improvement 1n Gas-Burner Valve ltlechamsm,

ving the lighting of said burners as they are turned on, and to the valve-operating mechanism.

The invention may be here summarized as the combination of parts for producing the results stated, which are shown 11] the drawings and hereinafter described, and definitely pointed out in the claims:

Referring to the drawings, Figure 1 represents a front elevation of a cluster of burners embodying my invention. Fig. 2 represents a similar view, the burners being viewed from a position ninety degrees to the right of Fig. 1. Fig. 3 is a sectional plan View taken on the line 3 3 of Fig. 1. Fig. 4 is a vertical central section of the valve and its casing, the

is a central horizontal section of the valve shell or casing viewed from below. Fig. 6 is a plan view-of the valve-plug, the springpressed stop-pin being shown in section. Fig. 7 is a vertical sectional view taken through the valve and itscasing in the plane of the inlets to the first two burners. In Figs. 1, 2, 3, 4, and 7 the valve is shown in the position which it occupies when all of the burners are in operation. v

A represents the gas-supply pipe, the lower portion of which is shown as threaded into the upper portion of the valve-casingB. Said casing is provided with a channel I), communicating with the gas-supply and leading to the valve-chamber b- The pilotburner C is shown as threaded into the upper portion of Fig. 5

the valve-casing adjacent to the supply-pipe A and communicating with the valvechamlocr by the channel 6. A transverse channel 7)" extends from the channel 6 to the channel 6 and insures a constant supply of gas for the pilot-burner independent of the valve mechanism. Opposite the channel 6 and in line therewith is a cleaning-opening, provided with a screw 7/.

Extending from the vertical walls of the casingBis a series of tubes. Four such tubes are shown, D, D, D, and I). Each of these tubes is litted with a vertically arranged burner (1,62 at, and d, each provided with a controlling-valve and a mixing-tube, having at the top thereof a wire-gauze adapted to distribute the gas ignited thereabove to a man tle. These burners are of the ordinary type and need no further description.

The valve-casing is provided with vertical channels communicating with the interior of said casing at I), 0", 6 l)", and I)". (See Fig. 5.) These passages establish communication between the interior of the valve-casing and the burners C, (Z, (2, (Z and d, respectively. In order to control the communication between the valve-casing and the burners, a valve-plug Eis provided, which is constructed as follows: This plug consists of a body tapering from the forward portion of the casing B to the rear portion thereof to lit the correspond inglytapered interior of said casing. It is provided at therearportion thereof with the ordinary screw and washer for drawing it snugly to its seat and 'n'cventing leakage of gas between it and the casing B. The portion of the plug adjacent to the front of the valve is solid, as shown at c, said portion extending reaiwvardly beyond the line of the channel 6". Here the plug is broken away for a portion of its length to form the irregular recess 0, as shown par ticularly in Figs. 4: and 6. The longest portion o'f this recess extends from a point between the opening 6'' and the ()[JOlllHgS 6" to a point beyond the openings 0 I) and is bounded by a straight vertical wall a. This recess also extends from the wall 0 to thesub-.

stantially diametrically opposite wall (1. The

portion of the valve-body terminating in said wall 6 controls the flow of gas through the openings 5 b to their respective burners. A portion of the recess extends beyond the wall 0- to the wall a, the portion of the valve-body in line with said wall 6* controlling the passage b. Toward the rear of the valve-body and about midway between the walls a and 0 is the vertical wall 6". The portion of the valve-body in line with this wall controls the openings 6 I)".

In order to easily retain the valve in position when set to supply any desired number of burners, I provide the front of the valvecasing with a plate 71 having in the face thereof depressions 5 b 6 corresponding, respectively, to the position of the valve when supplying one, two, or three burners, and with stops 5 b, corresponding, respectively, to the position of the valve when no burners are being supplied and when all four of the burners are being supplied. (Joacting with these stops and depressions is the pin 0 which is pressed outwardly by a spring 0 In order to operate the valve, it is provided with the arms 0 a, each having a perforation for the application of its operating-chain. These arms are pivotally connected to a yoke e, rigidly secured to the valve-body. In order that there may be some leverage exerted on the valve, no matter what may be its position, and that this leverage may be substantiall y the same, I have provided each arm with a shoulder 6, adapted to engage its corresponding yoke member when the valve is in such position as to elevate said yoke member. Thus, as shown in Fig. 1, when the shoulder of the arm is in engagement with its yoke arm an operating-chain connected to the end of said arm will cause such arm to exert a material leverage on the valve-plug. hen in a position in which the pin 0 engages the depression 5 the yoke-arm is still elevated, and the shoulder of the arm 0 is in engagement therewith. When such pin is in engagement with the depression 6 the arm 0 hangs vertically by gravity from the end of its yoke-arm; but as the yoke is in a substantially horizontal position the leverage then obtained is that due to the yoke-arm. Finally, when the pin c is in engagement with the depression 6 the end of the yokearm is nearly in horizontal alinement with the center of the valve-plug and the leverage exerted on the valve-body is that due to the full effective length of the yoke-arm. It is obvious that when the valve is in aposition the reverse of that shown in Fig. 1 the operation of thearm e and its corresponding yoke-arm to open the valve will be the same asthat above described for closing the valve.

It will be observed that the pilot-burner is provided with a small jet-orifice c in the top of the same and with lateral jet-orifices c a below the top jet-orifice. These jet-orifices are of such size as to easily accommodate the limited constant supply of gas to the pilotburner and to maintain small pilot-flames at all times when the valve is closed. In order to provide for lighting the main burners when the gas is turned on to the same, I have devised the following construction: The unrecessed front portion of the valve-plug is provided with a series of openings 6, e e and c communicating by short channels with the main recess a, said channels being shown in dotted lines in Fig. 6. These openings are in line with the channel 5 communicating with the pilot-burner U, and are so arranged that at substantially the time when communication is established between the recess in the valve-body and the openings 7), 7/, b and I), communicating with the burners (Z, d, (Z and (Z said openings 6", e e, and 6 will be successively brought into alinement with the channel 6 thereby insuring an additional supply of gas to the pilot-burner at the time when gas is turned on to any one of the main burners. As will appear from an inspection of Figs. 4, 5, and 6, gas is supplied to the pilot-burner through the channels 6 e 6 a" slightly in advance of its supply to the openings b b b b, enabling the pilot-burner to operate with an increased flame by the time gas is admitted to a main burner. This will be evident from the fact that as soon as gas may flow to the recess 0' in the valve-body it is free to flow to any one of the pilot-burner channels and from the fact that, as shown in Figs. 4c, 5, and 6, each of said channels is brought into alinement with the channel 6 slightly before the stop-pin 0 engages a depression in the plate 5 at which time the main burner corresponding to theposition of the stop-pin is in full operation. At this time, owing to the small diameters of the channel 6 and opening Z2 relative to the diameters of the openings 7) b 6 Z), the channel 6 and opening 6 are no longer in register, as shown in Fig. 4, and no waste of gas through the pilot-burner occurs, the latter then burning with its original limited supply. Below the top of the pilot-burner, as hereinbefore set forth, are the jet-orifices 0 0 As shown, these orifices are about ninety degrees apart, and each is adapted to direct a stream of ignited gas toward one of the rear main burners, the jet 0 directing its stream toward the burner (Z and the jet 0 directing its stream toward the burner (Z The jet-orifice 0, owing to the proximity of the pilot-burner to the burners (Z d, serves to ignite said burners. The two lateral jet-orifices and the top jetorifice burn each with a small flame when only the limited constant supply of gas is being furnished to the pilot-burner; but when the supply is increased by turning the gas on to any of the main burners said jets provide outthat may then be receiving gas.

In operation, supposing the valve to be in its closed position, which is the reverse of that shown in Fig. 1, no gas will then be flowing through the valve, the wall a being to the left of the passage 7). The valve is then turned to the right until the spring-pressed pin e engages the first depression 6. At this time the wall 0 is between the openings 1)" b uncovering the former, and the wall a is to the right of the passage 1). Gas can then flow to the burner (Z. A further movement of the valve to the right until the pin 0 engages the depression 6 uncovers the opening 6 and supplies gas to the burner ti. The next movement of the valve to the right causes the wall a to pass between the openings I) I)", and

the burner (Z is then supplied. The last -movement of the valve to the right uncovers the opening 5 and enables gas to be supplied to the burner d. All four burners are then in operation. As hereinbefore described, these successive movements of the valve cause the openings 6, c c and c to register successively with the channel 6 thereby enabling the pilot-light to ignite the burners thus successively brought into operation.

While I have described my invention as being employed with gas, it will be evident that it is not limited in its operation to gas alone, but may be employed with any gaseous or vaporous fuel, such as the vapor of oil or gasolene.

Having described my invention, I claim- 1.. The combination, with a main burner, of a supply-pipe for said burner, a rotary valve interposed between said supply-pipe and said main burner, a pilot-burner, means independ ent of said valve for furnishing said. pilot-= burner with a constant limited supply of gaseous fuel, said valve having a peripheral recess adapted to establish communication between the supply-pipe and the main burner and a channel extending from said recess through a portion of the valve-body exterior to said recess and adapted to establish communication between said recess and the pilot burner, substantially as described.

2. The combination, with a plurality of main burners, of means including valve mech anism for supplying each of said burners successively with gaseous fuel, of a pilot-burner, means for furnishing said pilot-burner with a constant limited supply of gaseous fuel, and

means for automatically increasing the supply of fuel to said pilot-burner by the operation of the valve mechanism, substantially as described.

3. The combination, with a plurality of main burners, of a pilot-burner for said main burners, means for furnishing said pilotburner with a constantlimited supply of gaseous fuel, and a valve adapted to control the supply of gaseous fuel to such main burners successively and to furnish an additional supply of such fuel to the pilot-burner at nearly the time when a main burner is placed in operation, substantially as described.

4. The combination, with a source of gaseous-fuel supply, of a plurality of main burners, of a pilot-burner for said main burners, means for furnishing said pilot-burner with a constant limited supply of such fuel, a valve-casing having channels communicating with said source of supply and said main and. pilot burners, a valve'in said casing for controlling communication between the fuel-supply and the channels, said valve being provided with means for increasing the supply of fuel to the pilot-burner in time to ignite a main burner when communication is established between the channel for such main burner and the source of supply, substantially as described. 7

5. The combination of a valve-casing having a central channel for the admission of gaseous fuel and two sets of burner-channels, said sets being on opposite sides of said central channel, of a valve-plug for controlling the supply from the central-channel to the said bu rncrehannels, said valve-plug having a recessed portion one of the boundaries of which is a longitudinal straight wall,the opposite boundary being a broken wall composed of three portions, namely, two end portions and an intermediate portion, the first end portion controlling the supply to the first set of burnerchannels, the intermediate portion controlling the supply to the recessed portion of the valve-plug and being ol'l'set sufliciently beyond. the first end portion to enable gaseous fuel to enter the recess through the central channel when the first burner-channel is placed in communication with such recess, and the second end portion, intermediate of the first end portion and the opposite longitudinal wall, controlling the communication between the recess' and the second set of burner-channels, substantially as described.

6. The combination of a val ve-casinghaving a central channel forthe admission of gaseous fuel, and two sets of. main-burner channels, said sets being on opposite sides of said chan nel, of a valve-plug for controlling the supply from the central channel to the said burnerchannels, said valve-plug having a recessed portion one of the boundaries of which is .a longitudinal straight wall, the opposite boundary being a broken wall composed of three portions, namely, two end portions and an intermediate portion, the first end portion controlling the supply to the first set of burnerchannels, the intermediate portion controlling the supply to the recessed portion of the valve-plug and being offset sufiiciently be yond the first end portion to enable gaseous fuel to enter such recess through the central channel when the first burner channel is placed in communication with said recess, the second end portion, intermediate of the first end portion and the opposite longitudinal wall, controlling the communication between the recess and the second set of burner-channels, a pilot-burner, means for furnishing the same with a constant limited supply of gaseous fuel, and means for increasing the fiow of fuel to said pilot-burner in time to ignite the main burners when their respective channels are successively placedin communication with the recessed portion of the valve-plug, substantially as described.

7. The combination, with a valve-casing having a channel for the admission of gaseous fuel, channels communicating with main burners, and achannel communicating with a pilotburner, of a valve-plug for controlling the supply from the supply-channel to the main and pilot burner channels, said plug having a recessed portion provided with longitudinal walls controlling the supply to the main burners successively, one of the transverse end walls of said recessed portion being intermediate of the supply and pilot burner channels, of a series of transversely-disposed channels extending from said recess to the outer convex surface of said plug, the outer end of each of said channels being in transverse alinement with the pilot-burner chan nel, said channels being so arranged that, at nearly the time when communication is established between such recess and any one of the main-burner channels, communication is established between such recess and the pilotburner channel through one of the transversely-disposed channels, substantially as described.

8. The combination, with a valve-casing having a channel for the admission of gaseous fuel, channels communicating with main burners, and a channel communicating with a pilotburner, of a valve-plug for controlling the supply from the supply-channel to the main and pilot burner channels, said plug having a recessed portion provided with longitudinal walls controlling the supply to the main burners successively, one of the transverse end walls of said recessed portion being intermediate of the supply and pilot burner channels, of a series of transversely-disposed channels extending from said recess through such transverse end wall to the outer convex surface of said plug beyond said wall, the outer end of each of said channels being in transverse alinement with the pilot-burner channel, said channels being so arranged that, at nearly the time when communication is established between such recess and any one of the main-burner channels, communication is established be tween such recess and the pilot-burner channel through one of the transversely-disposed channels, substantially as described.

9. The combination, with a valve-casing having a channel for the admission of gaseous fuel, a channel communicating with a main burner, and a channel communicating with a pilot-burner, of a valve-plug having a recessed portion, one of the boundaries of which is a wall for'controlling the supply to the main burner and another of the boundaries of which is a wall having a channel for establishing communication between such recessed portion and the pilot-burner, such wall-channel being so arranged that communication is established between the recessed portion of the plug and the pilot-burner channel at nearly the time when communication is established between such recessed portion and the mainburner channel, substantially as described.

10. The combination, with a gaseous-fuelsupply pipe, of a plurality of burners, of a valve-casing communicating with said supplypipe and provided with channels communicating with said burners, of a valve for controlling the communication between said supplypipe and said burner-channels successively, and a lever for operatingsaid valve, said lever being constructed to exert asubstantially constant leverage on said valve at each of the successive movements of the same, substantially as described.

11. The combination, with a gaseous-fuelsupply pipe, of a plurality of burners, of a valve-casing communicating with said pipe and provided with channels communicating with said burners, of a valve for controlling communication between said channels and said burners successively, and means for operating said valve, said means consisting of an arm rigid with said valve, a second arm pivoted at the outer end of said first arm and provided with a shoulder adapted to engage the first arm when the outer end of the latter is elevated above the valve and to make a rigid connection between the said second arm and the valve, substantially as described.

12. The combination, with a gaseous-fuelsupply pipe, of a plurality of burners, of a valve-casing provided with channels communicating with said supply-pipe and said burners, of a valve for controlling communication between said channels and said burners successively, means for operating said valve, said means consisting of an arm rigid with said valve and a second arm pivoted at the outer end of said first arm and provided with a shoulder adapted to engage the first arm by gravity when the outer end of the latter is elevated above the valve and to make a rigid connection between the said second arm and the valve, substantially as described.

13. The combination, with a gaseous-fuelsupply pipe, of a plurality of burners, of a valve-casing communicating with said pipe and provided with channels communicating with said burners, of a valve for controlling communication between said channels and said IOC IIC

burners successively, and means for operating said valve consisting of a yoke rigid with said valve, said yoke comprising a pair of oppositely-extending arms and a second pair of arms, each pivoted to the outer end of each of said yoke-arms and provided with a shoulder adapted to engage its yoke-arm when the outer end of the latter is elevated above the valve and to make a rigid. connection between said second arm and the valve, substantially as de scribed.

14. The combination, with a plurality of main burners, of a pilot-burner parallel with and extending slightly beyond said main burner, said pilot-burner having a small jetorifice in the end of the same adapted to ignite some of said main burners and lateral orifices adapted to direct jets of gaseous fuel in a direction to ignite the remaining main burners, of means for supplying fuel to the main burners, means for furnishing a constant limited supply of fuel to the said pilot-burner, means for furnishing an additional supply of fuel to the said burner, and a valve for controlling the supply of fuel to the main burner and the additional supply to the pilot-burner, whereby, at nearly the time when the gaseous fuel is turned on to the main burner, it is also supplied to the orifices of the pilot-burner, substantially as described.

15. A burner-fixture comprising, in combination, pairs, of main burners, a pilot-burner provided with a jet-orifice at the end of the same adapted to ignite one pair of said main burners, and with lateral orifices each adapted to direct a jet of gaseous fuel toward one of the remaining main burners to ignite the same, means for supplying fuel to the main burners, means for furnishing a constant limited supply of fuel to the pilot-burner, means for furnishing an additional supply of fuel to the said pilot-burner, and a valve for controlling the supply of fuel to the main burners and the additional supply to the pilot-burner, whereby, at nearly the time when the fuel is turned on to a main burner, it is also supplied to the orifices of the pilot-burner, substantially as described.

16. The combination, with a main burner, of a pilot-burner, of a valve-casing having a channel for the admission of gaseous fuel, a channel communicating with the main burner and a channel communicating with the pilotburner, of a valve-plug having a peripheral recess constructed to control the supply from the first-mentioned channel to the main and pilot burner channels, of a by-pass independent of said valve for furnishing the pilotburner with a constant limited supply of fuel, the arrangement of parts being such that an additional supply is furnished through the valve-recess to the pilotburner channel, slightly in advance of the supply to the mainburner channel and is cut off from said pilotburner channel at the time when the main burner channel is receiving its maximum supply, substantially as described.

17. The combination, with a main and a pilot burner, of a valve-casing having a channel for the admission of gaseous fuel, a channel communicating with the main burner and a channel communicating with the pilot-burner, and a by-pass establishing communication between the first-mentioned channel and the pilotburner, of a valve for controlling the supply from the first-mentioned channel to the main burner, said valve having an independent channel for establishing communication between such iirst-mentioned channel and the pilot-burner, the arrangement of parts being such that the pilot-burner receives an additional supply of fuel from the first-mentioned channel slightly in advance of the supply through the valve to the main-burner channel, and the supply to said pilot-burner chan-- nel is cut oil by the time that the main-burner channel is receiving its maximum supply through the valve, substantially as described.

18. The combination, with a main burner, of a pilot-burner, of a valve-casing having a channel for the admission of gaseous fuel, a channel communicating with the main burner and a channel communicating with the pilotburner, of a valve-plug for controllingthe supply from the first-mentioned channel to the main and pilot burner channels, of a bypass independent of said valve for furnishing the pilot-burner with a constant limited supply of fuel, the arrangement of parts being such that an additional supply is furnished to the pilot-burner through the valve and pilot burner channel slightly in advance of the supply to the main-burner channel and is cut oil from said pilot-burner channel at the time when the main-burner channel is receiving its maximum supply through the valve, and means carried by the valve for retaining the same in a position to furnish said main-burner channel with its maximum supply, substantially as described.

19. The combination, with a gaseous-fuelsupply pipe, of a plurality of main burners, a pilot-burner for said main burners, means for furnishing said pilot-burner with a constant limited supply of fuel, a valve interposed between said supply and said main and pilot burners, said valve comprising a casing having channels coml'nunicating with said main and pilot burners, and a rotary valveplug for controlling communication between the supply-pipe and the main and pilot burner channels, the arrangementof parts being such that the rotation of the valve-plug establishes communication progressively between the supply-pipe and the main burners and cuts oil the supply of fuel to the pilot-burner at the time when each main burner is receiving its maximum supply, substantially as described.

20. The combination, with a plurality of main burners, of means, including valve mechj anism, for supplying each of said burners progressively with gaseous fuel, of a pilot-burner, means for furnishing said pilot-burner with a constant limited supply of gaseous fuel, and means for automatically increasing the supply of fuel to the pilot-burner by the operation of the valve mechanism in time to ignite a

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