US449507A

US449507A - Gas-engine

Info

Publication number: US449507A
Authority: US
Publication date: 1891-03-31
Anticipated expiration: 1908-03-31

Description

2 Sheets--Sheet 11. G. J. WEBER.

GAS ENGINE.

Patented Mam. 31, 1891.

(No Model.)

I IMF w? 2 Sheets-Sheet 2.

(No Model.)

G. J. WEBER.

GAS ENGINE.

Patentd Mar. 81

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UNITED STATES PATENT OFFICE.

GEORGE J. \VEBER,.OF KANSAS CITY, MISSOURI.

GAS-ENGINE.

SPECIFICATION' forming part of Letters Patent No. 449,507, dated March 31, 1891. l Application filed April 8, 1890. Serial No. 347,088. (No model.)

T @ZZ whom it' may concern:

Be it known that I, GEORGE J. VEBER, of Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Gas-Engines, of which the following is afull, clear, and exact description, :reference being had to the accompanying drawings, forming a part of this specification.

This application is for an improvement on the invention set forth in my application filed July 24, 1889, Serial No. 318,596.

My invention relates to an improvement in gas-engines; and my invention consists in features of novelty hereinafter described, and pointed out in the claims.

Figure I is a perspective of my improved engine. Fig. Il is a section showing the exhaust-valve and the operation thereof. Fig. III is a detail showing the gas-supply valve and its operating device. Fig. IV is an enlarged detail of the weighted arm for operating the gas-supply valve. Fig. V is an enlarged sectional view of the rotary ignition valve and bonnet.

Referring to the drawings, 1 represents the power-cylinder in which works the piston 2.

3 represents the pistoirrod, which is tapped into a head a and on which there is a jamnut 5, by which means the rod can be adj usted in the head. The head 4. is pivoted to the piston 2 by means of a hollow shaft 6. rlhe shaft 6 has a hollow portion 7 for holding oil or other lubricant.

S represents openings leading from the hollow shaft into the head 4 for the passage of the lubricant for the lubrication of the head in its bearing.

The shaft 6 has an internal screw-thread 9, in which a plug 10 engages. The plug 10 is screwed into the hollow shaft step by step as often as may be desired in order to force the lubricant out through the openingsiS.

11 represents a tube in the Wall oi' the cylinder having communication with the shaft 6 and having a plug 12 at its outer end. By the removal of the plug 12 access maybe had to the plug 10.

The upper end ofthe piston-rod 3 is journaled to crank-arms 13 on the drive-shaft 14.

15 represents a double right and left screw located near one end of the drive-sl1aft14t,in

which engages swivel 15% on the upper end of a rocking lever 16. is fulcrumed to the frame of the cylinder by a bracket 17. The lower end of the rocking lever has a shaft 1S attached thereto, said shaft having friction-rollers 19 2O journaled thereon.

21 represents the chamber into which the gas first enters on. its way to the cylinder to be fired. It then passes from the chamber 2l, through an opening 22, into the firingchamber 23, from whence it passes through an opening 24 into the cylinder proper ready to be fired.

25 represents the gas-supply valve, which is located in the firing-chamber 23 and which is secured to a vertical rod 26, the rod 2G extending up through the chamber 21 and having a coil-spring 27 thereon for holding the valv 25 up to its seat while the saine is in its normal position.

28 represents a vertically-adjustable collar near the upper end of the rod 26, said collar being adjusted by a jam-nut 29. The upper end of the collar forms a shoulder 30.

81 represents an arm pivoted at- 32 to the frame, said arm having a V-shaped projection 33 on its upper side, against which the friction-roller20, attached to the rocker-shaft 1G, impinges at statedintervals governed by the double -screw 15 on the4 drive-shaft.

34. represents a pendent arm pivoted. at 35 in a mortise 3G of the arm 31, and also has a V-shaped projection against which the roller 20 also bears at stated intervals.

38 represents a weight, which is an integral part of the arm Si, and which holds said arm normally in the position shownin dotted lines, Fig. IV.

As the roller 20, by the action of the rocker arm 16, eomesin contact with the projection 33 on the arm 31, and in contact with the projection 37 on the arm 34C, the arm 3l will be depressed, and the arm 34 will be thrown into the position shown in Fig. IV, at which time the lower end of the arm 34. will come in contact with the collar 28011 the upper end of the rod 26, which operates the gas-supply valve, said rod and valve being thus depressed and a fresh supply of gas admitted to the cylinder.

`It is desired at times not to admit a fresh The rocking lever 1G v supply] of gas at every depression of the arm 31, as the engine might be driven faster than is necessary for the amount of work it is required to do. It is obvious that for economic working and safety the admission of gas and the time of ring the same should be controlled by the engine-governor.

39 represents the governor, which is made in the usual form. To the governor is attached one end of a rod 40, said rod extending down to and connected with a crank 41 on a shaft 42, said shaft being journaled in the wall of the cylinder, as shown at 43. On theopposite end of the shaft 42 is adog 44. It will be seen when a high speed is obtained the governor will rise, and in so doing will raise the rod 40, operating the crank 41, and will thus throw the dog 44 forward a sufficient distance to prevent the arm 34 from engaging the collar 28, and thus prevent afresh supply of gas being admitted until the speed of theb engine has been reduced. As a means to control the governor I place a pulley 45 on the drive-shaft, around which travels a belt 4G, said belt then passing over pulleys 47, journaled on arms 48, and thence around a pulley 40, situated beneath the governor. The arms 48 are pivoted at- 50 to a collar 5l, and have bearing-points 52 and 5392-. The collar 51 has a pin 53 working in a slot 54. The tension of the belt 46 will hold the pulley 47 and arm 48 in the position shown in Fig. III; but if said belt should break and said balls cease to revolve, then the engine would speed beyond requirements.

With my device if the belt breaks the arm 48 will be released from belt-tension, and will be free to ascend, as spring 55 bears against collar 5l, carryingit and pin 53 upward. Then the inner end of -arm 48 bears againstthe support at As the collar lascends, pin 53 presses against collar 5G on the rod 40, which causes the governor to act same as if it were running.

57 represents an opening in the cylinder, through which the exhaust passes after the charge of gas'has been fired and its force eX- pended on the piston. The exhaust passes from the opening 57 into the chamber 23 and then through valve-opening 59 into a chamber 60, and thence out through port Gl.

G2 represents the exhaust-valve located in the chamber 23 on a rod 63, said valve closing the opening 59 when it is in its normal position. This rod extends up through the chamber 60, and has a coil-spring 64 located thereon for holding the valve 62 closed.

65 represents an'arm pivoted at (5G to the engine-frame, said arm being depressed at stated intervals by the roller lt) on the lower end of the rocking lever 1G rolling against a projection G7 on the arm, causing an adjustable colla-r 68 on the under side of the lever to come in contact with the upper end of the valve-rod 63, depressing the same and thus opening the exhaust-valve G2. The collar (i8 is secured to a screw 09 on the under side of the lover, and is set at any desired point by a jam-nut 70, to regulate the amount of valveopening and to compensate for wear.

7l represents the ignition-tube, which has a central opening 72, leading into the chamber 23 through abonnet 7 2, which is screwed into the wall of the chamber. The opening 72 is closed at the intervals between tiring the charges of gas by a disk 73 within the chamloer d3, having a series of rotating valves 74.

The stems 75 ofthe valves 74 are held in openings 7 6 in thedisk and have coil-springs 77 at their rear ends iu said openings, by which means they are at all times held firmly against the bonnet 7 2- in the wall of the chamber 23. The upper one of the valves 74 and its spring 7G, however, have no function other than to counterbalance the pressure of the spring 76 on the opposite side of the disk 73, so that the pressure of the latter spring cannot cant the disk; but nevertheless in the event the lower valve becomes damaged the disk 73 may be turned around and the now upper valve employed to close the port 72.

78 represents an opening extending through thedisk 73, through which the llame shoots from the ignition-tube when a charge of gas is being tired.

The disk 73 is secured to a shaft 79, said shaft extending through the bonnet 7 24, and having a coil-sprin g 80 thereon forholding the disk tightly against the bonnet. To the outer end of the shaft 79 is Secured a crank-arm 8l, having a rod 82 pivoted at its outer end.

83 represents a coil-spring on the rod 82, by which means the disk 73 is held in its normal position, so that one of the lower ones of the valves 74 will close the opening72 leading from the ignition-tube- On the upper end of the rod 82 is an adjustable collar 84 for lengthening or shortening said rod to regulate the time of tiring.

85 represents a jam-nut for locking the collar.

It will be seen that as the arm 3l is depressed its outer end 86 will depress the rod 82 on which it rests, and by depressing the same will cause the disk 7 3 to rotate to a certain extent, thus causing the lower valve 74 to pass from the opening 72 and permit any burn ed product contained in the tube to pass out into the chamber 23. The ignition-tube is heated by a jet or other means, and as the roller 2O travels back over the projection the rod will be again depressed, opening the valve and permitting the gasto enter the tube 7l, where it is ignited and shoots back into the chamber 23, ignitin g the full charge ot' gas.

87 represents an opening in the bonnet 72%, through which the disk 73 may be lubricated.

88 represents a water-space surrounding the cylinder, in which I place sections of wood or other yielding substance 89, which, if the water should freeze, will give or yield-that IOO IIO

IZO

is, become compressed under the pressure of the ice-and thus obviate the breaking of the walls of the cylinder.

90 represents a water-space surrounding the bonnet 72g-, in which water may be circulated to prevent the bonnet from becoming overheated.

I claim as my invention- 1. In a gas-engine, the combination of the" drive-shaft 14, double right and left hand screw 15 on the shaft, pivoted rocking lever 16,having its upper end engaging the screw, and having friction-rollers on its lower end for the purpose of operatin g valve-gear, substantially as described, and for the purpose set forth.

2. In -a gas-engine, the combination of the main shaft 14, double screw located thereon, rocking lever engaging the double screw at its upper end, friction-rollers journaled to the lower end of the rocking lever, and pivoted arms with which said rollers engage to operate valve-gear.

In a gas-engine, the combination of the main shaft 14, double screw on the shaft, rocking lever engaging the double screw at its upper end, friction-roller 20, journaled to the lower end of the rocking lever, and a pivoted arm 31, havinga V-shaped projection 33, against which the roller bears in order to dcpress the same, substantially as described, and for the purpose set forth.

4. In a gas-engine, the combination of the rocking lever, means for operating the same, roller 2O on the lower end of the rocking lever, pivoted arm 31, and a weighted arm 34, pivoted to the arm 31 forthe purpose of operatin g valve-gear, substantially as described, and for the purpose set forth.

5. In a gas-engine, the combination of the rocking lever, means for operating the same, roller 2O on the lower end ofthe rocking lever, pivoted arm 31, V-shaped projection 33 on the arm 31, weighted arm 34, pivoted to the arm 31, projection 37 on the arm 34, against which the roller 37 bears in order to throw the lower end of the arm 34 into contact with a collar 2S on the rod 26 of the gasadmission valve 25, in order to depress said rod and valve and to admit a charge of gas, substantially as described, and for the purpose set forth. j

6. In a gas-engine, the combination of the pivoted arm 3l, means for depressing the same, weighted arm 34, pivoted to the arm 31,

means for vibrating the arm 34 and throwing it into Contact with an adjustable shoulder 23 on a rod 26, said rod being connected to a gas-supply valve 25, and a spring on said rod for holding the valve in its closed position, substantially as described,and for the purpose set forth.

7. In a gas-engine, the combination of the weighted arm 34, having a pivoted support, valve-rod 2G, having an adjustable collar 23, and a pivoted dog 44, which may be automatically thrown into position to prevent the arni 34 from engaging the collar 28, substantially as described, and for the purpose set forth.

3. In a gasengine, the combination of the arm 34, having a pivoted support, valve-rod 2G, having an adjustable collar 23, a dog 44,

secured to a pivoted shaft 42, crank-arm 41 on said shaft, and a rod 40, connecting the crank-arm 41 with the en gine-governor,where by the dog 44 may be automatically thrown into position to prevent the arm 34 from engaging the collar 2S on the valve-rod 2G, substantially as described, and for the purpose set forth.

9. Ina gas-engine, the combination of the governor 39, dog 44, rod 40, connecting the dog with the governor, collar 5l on the governor-frame having a pin 53, and a spring 55 for raising the collar 51 and causing the pin 53 on the same to engage a collar 5G on the rod 40, causing said rod to rise and thus operate the dog 44, substantially as described, and for the purpose set forth.

10. In a gas-engine, the combination of the collar 51 on the governor-frame, spring 55 for raising the collar, lever 48, pivoted to the col` lar, pulley 47 on the outer end of the lever, pulley 49 on the governor-frame, pulley 45 on the engines drive-shaft, and a belt 4G, traveling on all said pulleys, whereby the tension of the same on the pulley 47 will cause the lever 48 to hold the collar 51 in its normal position, substantially as described, and for the purpose set forth.

11. In a gas-engine, the combination of the pivoted arm 31, means for depressing the IOO same, a rotary disk 73, situated in the chamr ber 23, ignition-valves 74, located in the disk, and an adjustable rod 82, connecting the disk with the arm 31, whereby the depression of said'arm will cause said disk to rotate, substantially as described, and for the purpose set forth.

12. In a gas-engine, the combination of the main shaft, the ignition-tube, the disk 7 3 secured to a shaft 79, valves74, located in said disk for closing said tube, arm 81, secured to the opposite end of the shaft 7 9, a spring 80, interposed between the arm 81 and the shaftbearing, and a pivoted arm connected to arm 31 and adapted to receive motion from the main shaft, substantially as described, and for the purpose set forth.

13. In a gas-engine, the combination of the bonnet 7215-, having an opening 72 for the admission of gas to a tube 7l, a rotary disk 73, having an opening 7S, and valves 74 in the disk for closing the opening 72, substantially as described, and for the purpose set forth.

1.4. In a gas-engine, the combination of the bonnet 7 2;-, valve secured to the bonnet, and an opening 90, surrounding the bonnet, said opening being for the circulation of water to prevent the same from becoming overheated, substantially as described, and for the purpose set forth.

ITO

15.- In a gas-engine, the combination ot' the bonnet 72?,4 and a Valve secured to the bonnet, said bonnet having an opening S7 for the lubrication of said valve, substantially as described, and for the purpose set forth.

16. In a gas-engine, the combination of the exhaust-Valve 62, rod G3, connected to said Valve, spring 64 on the rod for holding the valve in its closed position, pivoted arm 65, having a projection (37 on its upper side, and an adjustable Collar on its under side, Whereby When said arm 65 is depressed said rod Will be depressed and the exhaust valve opened, substantially as described, and for the purpose set forth.

17. In a gas-engine, the cylinder having openings Within the same for the circulation of water and a yielding substance placed in said openings, whereby if the Water should freeze such substances would yield and thus prevent the cylinder from breaking, substantially as described, and for the purpose set forth.

GEORGE J. VEBER.-

Witnesses:

JAS. E. KNIGHT, M. G. DEWEY.