US894885A - Acetylene-gas generator. - Google Patents

Description

PATENTED AUG. 4 1908.

A. W. HANGER. 8 AGETYLENE GAS GENERATOR.

APPLICATION FILED OUT. 8, 1907.

2 SHEETS-SHEET 2.

I @lmaeuto; Z WZ' throughout the severall figures of the ALEXANDER WYTHE HANGER, OF STAUNTON, VIRGINIA.

ACE TYLE NE-GAS GENERATOR.

Specification of Letters Patent.

Iatented Aug. 4, 1908.

1 Application filed October 8, 1907. Serial No. 396,497.

To all whom it'mcy c oncern:

Be it known that-I, ALEXANDER WYTHE HANGER, a citizen of the United States, residing at Staunton, in the county of Augusta and State of Virginia, have invented a new and useful Acetylene-Gas Generator, of which the following is a specification:

This invention relates to acetylene gas generators, and has for its principal object to provide an improved means for controlling the supply of carbid from the carbid tank to the generatingtank.

A further object of the invention is to provide a valve mechanism of such construction that when the supply of carbid is exhausted the valve will be moved to closed position in readiness for recharging of the carbid chamber. r r

A still further object of the invention is to provide a carbid valve that is automatically controlled by the pressure of gas generated, the mechanism being so arranged that when the gasometer or other gas container falls below a predetermined point, the valve mechanism will be disconnected and the valve automatically closed.

With these and other objects in view, as will more fully hereinafter a pear, the invention consists incertain nove features of construction and arrangement of parts, [hereinafter fully described, illustrated inthe accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and minor details of the structure may be made withoutdepartin'g from the s irit' or sacrificing any of the advantages o the invention. 3

In the accompanying drawings :Figure1 is a sectional elevation ofa portion of an acetylene gas generating apparatus provided with a carbid valve mechanism arranged and constructed in accordance with theinvention.

Fig. 2 is a detail view of a portion of the valve operating mechanism partly in section. Fig. 3 is a sectional plan view through a portion of the lever supporting standard and disks. Figs. 4 and 5 are detail perspective views of the disks detached. Fig. 6 is a sectional elevation illustrating a modified form of valve. I I j Similar numerals of, -referencew are employed to indicate [corresponding (parts rawings.

passing from the generator to carbid chamber 15 that is The generating tank 10 and the gasome'ter 11 may be of any ordinary construction, and arranged in any convenient manner, the gas the gaso'meter, and the rise and fall of the latter controlling the position of the carbid feed valve.

Arranged above the generating tank is a supported by a frusto-conical casing 16. The bottom of the carbid chamber is tapered toward a discharge opening 17, and the tapered wall of the opening forms a seat for a valve 18. Below the discharge opening is a second valve 19 that is arranged to close against a tapered valve seat 20, the latter acting to direct the falling carbid through a discharge passage 21 into the generating tank.

The two valves are carried by a vertically movable stem 22 that extends through a stufiing box 23 at the top of the carbid chamber. The lower portion of the'stem is uided by a deflecting hood 24that is carried by the lower portion of the wall of the carbid chamber and serves to support the main weight of the carbid in order to permit free movement of the valve.

Secured to and projecting from the top of the carbid chamber is a vertical standard 30 having a vertically extended slot 31 of irregular contour, there being a projection 32 ex tending inward from one wall of the slot andv forming at the top a rounded seat 33for the receptionof a fulcrum pin 34'. The bottom of the projection is arran ed on a curved line struck from the axis of t e pivot 34,. and at the base of the projection is asecond seat 35 for the reception of a second fulcrum pin 36 which comes into play when the mechanism is to be disconnected after the supply of carbid is exhausted.

The two pins 34 and 36 serve as connections for two disks 38 and 39 the ends ofthe pins being upset or being in theform of bolts and provided with suitable nuts in order that the disks may be firmly clamped together. The inner face of the disk 38 is provided; with a diametrically extending recess for the reception of a lever 40, while the inner face of the disk 39 is recessed to receive the standard 30. From the inner face of the disk 39 project lugs 41, which bear against the side of thelever 40, and the inner face of the disk 38, the lugs serving to hold the lever firmly within the recess of the disk.

Thelonger arm of the lever is connected by a link 43 to the top of the gasometer or other member that is movable under the pressure of gas generated in the tank 10. The shorter arm of the lever is connected by a link 44 to the upper end of the valve stem 22, and at the extreme end of the shorter arm of the lever is hung a weight 45 that assists the. closing movement of the valve.

During the ordinary operation of the parts, the upward movement of the gasometer will cause the lever to rock on the pin 34, and the valve stem 22 will be forced downward, this movement being assisted by the weight 45, and the two valves 18 and 19 will be moved against their respective seats 17 and 20, thus cutting off the flow of carbid in the generating tank.

As the supply of gas in the gasometer is consumed, the bell of the gasometer will descend and the longer arm of the lever will be turned down, thus raising the valve stem 22 and moving the two valves 18 and 19 to open position, so that a fresh charge of carbid may flow into the generating tank.

When the supply in the chamber 15 is wholly exhausted and no more gas is generated, the gasometer bell moves down below its normal limit, and the valve stem will be raised, the lever rocking on the pin 34. This raises the valves to open position, but as the downward movement of the bell continues, the pin 36 will move to engage the seat 35 and the fulcrum point of the lever will thus be shifted. The pin 34 will now be forced outward from the seat 33 until it arrives at the outer face of the projection 32, and then the lever and the disks will fall moving the valves to closed position in readiness for re charging of the carbid chamber, and it is nec essary that these parts be reset by hand before the apparatus can be again operated.

In order to insure positive closing of the valve in case the latter fails to move to the closed position, the shorter arm of the lever 40 is connected to the' carbid chamber or other fixed member, by means of a chain or link 50 which will allow considerable play of the lever before forming a working connec tion between the carbid chamber and lever. If, however, the valve should fail to move to this closed position by gravity and the gasometer continues its downward movement,

the chain will become taut and the valve stem will be forced down positively, thus moving both valves to closed position and preventing the further passage of carbid.

' In the construction shown in Fig. 6, an auxiliary weight 51 is employed, in place of the lowermost valve, this weight being frusto conical in form, so that it will act as a distributer and scatter the carbid over a wide carbid valve, a gasometer, connections between the gasometer and valve, said connections including a pivotally mounted lever,

the by exand means for automatically unscating lever and allowing the valve to close gravity when the supply of carbid is hausted.

2. In apparatus of the class described, a carbid valve, a gasometer, a pivotally mounted lever forming a connection. between the gasometer and the valve, and means operable on excessive downward movement of the gasometer for unseatingl the lever and allowing the valve to close.

3. In apparatus of the class described, a carbid valve, a vertically slotted standard shaped to form a pair of seats or fulcrums, a lever, a disk carried thereby, a pair of pivot pins extending from the lever and disk and arranged to engage such seats or fulcrums, a connection between the lever and valve, and a gasometer for actuating said lever.

4. In apparatus of the class described, a generating tank, a carbid chamber arranged. above the same, a carbid valve, a stem carrying the same, a vertically slotted standard arranged above the carbid chamber and provided with a projection forming a pair of upper and lower fulcrums, a gasometer, a lever connected to the gasometer, and the valve stem, a pair of disks, one of which is slotted 9 to receive the lever and the other slotted to receive the standard, and a pair of pins extending through the disks and arranged to engage said fulcrums, substantially as specified.

5. In apparatus of the class described, a generating chamber, a gasometer, a carbid chamber, a pair of superposed valve seats between the carbid chamber and the generating chamber, a pair of valves arranged to close against the said seats, a stem carrying the valves, a standard arranged at the top of the carbid chamber and provided with a vertically arranged irregular slot, a projection forming a partof the wall of the slot and provided with a pair of seats or fulcrums, a lever, means for connecting the lever to the valve stem, means for connecting the lever to the gasometer, a weight hung on one end of the lever to move the valves to closed position, a pair of disks, one of which is slotted to receive the lever, and the other recessed to receive the standard, and a pair of pins extending through the disks and arranged to seat against said fulcrum.

' 6. In apparatus of the class described, a carbid valve, an operating lever having a shiftable fulcrum, means for connecting said lever to the valve, a gasometer connection for the lever, and a normally inoperative member forming an auxiliary fulcrum for said lever to ermit the closing of the valve on abnormal escent of the gasometer.

7. In apparatus of the class described, a carbid valve, a gasometer, a lever forming a In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

. ALEXANDER WYTHE HANGER.

Witnesses:

H. H. KERR, JOHN CRosBY.

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