US444031A

US444031A - Gas-engine and ignitor therefor

Info

Publication number: US444031A
Authority: US
Publication date: 1891-01-06
Anticipated expiration: 1908-01-06

Description

(No Model.) 3 Sheets-Sheet l.

G. J. WEBER. GAS ENGINE AND IGNITEN THBNNFON.

No. 444,031. Patented Jan. 6, 1891.

l.: ,ZZ 7a 3 w @D i @J l x g: v .1. .1 4.

"25 d 73 91' 7 72 qll s 0/ 1 6 77 l '9 7 *11 5.a 6

6 l 67 551i u 6 66 6J y 64 645.9 761 y I l 73 @/a l E l' 4 J4 I L. f f

79 I v 93 nl 5l l Iz I 7 r I I ,u 7)' l o ,|80 O 16 @a0 6 1 7 *'j n@ fr M i@ qa f1 47 ii 7i 6@ l 5 l 4 272 3.9 4v a 2 8 i 5o@ 4a'- ai i l 4&6 Z5

l/vvE/vToi-. Je

y gearye/J web @7^ -6 M Q4' y Y@ LCorrLe/y/J rcrzns co., mowmmo., wnnmcmw, n. c.

me Nunn s (No Model.) 3 sheets-sheen 2. G. J. WEBER.

GAS ENGINE AND lGNITEE THEREPOE.

J. @y n 7 wt... n 1 nl.. m.\. F W da w a L 6 JIT: [|IIll, f4 6 Patented Ja,11.6, 1891.

/lvvE/VTOR. georg@ JT waw .by UKA/wok (No Model.) 1 s sheets-sheet 3. G. J. WEBER.

GAS ENGINE AND IGNITBR TNERBPOR. 110.444,031. Patented Jan. 6, 1891.

Fg VL 771.

UNITED STATES PATENT Erice.

GEORGE J. IVEBER, OF KANSAS CITY, MISSOURI.

GAS-ENGINE AND IGNITOR THEREFOR.

SPECIFICATION forming part of Letters Patent No. 444,031, dated January 6, 1891.

Application filed July 24, 1889. Serial No. 318,596. (No model.)

T all whom it may concern.-

Be it known that 1, GEORGE J. WEBER, of Kansas Oity, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Gas-Engines and Ignitors therefor, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure I is a front elevation of my improved device. Fig. II is a vertical section taken on line II II, Fig. I. Fig. III is an enlarged detail view showing parts in section. Fig. IV is an enlarged sectional view showing the ignitor. Fig. V is an enlarged detail perspective view of the valve-rods and wipers. Fig. VI is an enlarged front view of the ignition device. Fig. VII is a side viewv of the same.

My invention relates to an improvement in gasengines and ignitors therefor; and it consists in features of novelty hereinafter fully described, and pointed out in the claims.

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

3 represents the piston-rod, which is journaled at its outer end to a crank l1 on the drive-shaft 5. The drive-shaft is supported by a frame 6, which is integral with the cylinder Yshell or frame.

7 represents a ily-wheel on the drive-shaft, and 8 the belt-pulley.

9 represents a double screw-that is, arightand-left screw-situated on the drive-shaft 5. This double screw is formed by two grooves 9, which converge at the point and from which point in both directions they continually diverge one-half the way around.

10 represents a rocking lever pivoted to a bracket 11, the bracket being supported by the frame 6.

12 represents a swivel secured to the upper. end of the rocking lever 10, the swivel working in the double screw 9 on the drive-shaft, whereby the lever will move continuously in one direction or the other during the rotation of the shaft.

13 14 represent two pawls secured to the opposite sides of the lower end of the rocking lever, one of the pawls extending in an upwarddirection and the other extending in a downward direction.

To the pawl 14 I attach a spring 15, which limits the downward movement of the pawl, or, in other words, prevents it from passing out of contact with the valve-rod until it is forced out by the wiper.

16 represents a valve by which gas is admitted, and 17 a valve by which air is admitted, to a mixing-chamber 18.

19 represents a slide-valve located in a chamber 20. This valve is provided with an opening 21 and has its rear face formed angling. When the valve is closed, the rear will come in contact with an angling lug 22, and the valve will be forced tight against its seat, thus shutting off the supply of gas. When the valve is raised, as shown in Fig. III, the gas and air will pass from the mixing-chamber 18 through openings 23 24E into the chamber 20. The gas passes from the chamber into a chamber 25 and from thence through a gravity-valve 26 into a chamber 27 and then through an opening 28 into the cylinder, where it is fired at the proper time. The valve 26 is provided with

guides

29 and 29%, which guide the valve back to its proper position after the charge of gas has passed through. To aid the valve in closing, I provide spring 30, 'fo which I attach the valve by means of a suitable link 31. After the gas has been fired the products of combustion or exhaust pass out through a gravity-valve 32 into a chamber 33 and then through the exhaust-valve 34 into a chamber 35, from whence it is discharged through the exhaustpipe 36. The valve 32 is provided with guides 37 38, which prevent too great a latitude.

I will now describe vmy means of ignit-ing the gas.

39 represents a circular valve located in the chamber 27, the valve being ground so as to have a perfectly tight seat against the outer plate 40 of the chamber. The valve is provided with a stem 4.1, which passes through the plate, and is provided at its outer end with a lever 4t2.

43 represents a coil-spring on the stem 41, one end of the spring pressing against the plate l0 and the other end pressing against the lever 42 on the end of the stem. By this means the valve 39 is held rmly against its seat.

44 represents an opening in the plate 10,

IOO

which corresponds with an opening l5 in the valve 89.

4G represents a pipe or tube, which is connected at its upper end with the opening fit-l. This tube extends out from the wall in a horizontal direction, where it passes into a flue i7, then passes down to the lower end of the flue in a vertical direction, and then extends at right angles with the iiuc for a short distance, whence it terminates in a closed end. The lower end of the tube @i6 is provided with a section screwed to the body of the tube, which may be removed when desired in order to clean the tube.

48 represents a section of gas'pipe, which enters through a hood 49 into the iiue 47. The ilue 47 may be lined with asbestus or other suitable material.

50 represents a spring, the upper end of which is secured to the outer end of the lever -12 and having its lower end secured to any suitable stationary object-such as the floor, for instance.

5l represents an irregularbar or rod, which is pivoted at its lower end to the lever 12. rlhe bar extends upward and works in openings 52 53 in brackets 5i 55. The bar is provided on its outer face with a beveledshaped projection 5G, and has its inner face formed with a hook 5S which forms a trigger and serves to hold the ignition-valve open. The hook hooks onto the upper side of the bracket 55 when the bar has been raised to a sufficient height.

5i) represents a link or trip provided at its inner end with an opening 60, through which the upper end of the bar 5l extends, this end of the link being supported by the bracket 55. The outer end of the link or trip 5f) is pivoted to an eccentric 6l, the eccentric being' secured to the rocking lever l0 by a bolt G2. The eccentric is provided with a. springarm G3.

(il representsa handle secured to the outer side of the free end of the arm G23, the inner side being provided with apointed projection U5, which engages in holes GG in the rocking lever.

(i7 represents a rod extending from the' bracket 55 down to the valve l) and is secured at its lower end to the valve. The rod passes through a plug GS, which is screwed into the frame G0, which surrounds the valve.

represents a housing screwed fast to the plug GS, and in which is located a coil-spring 7l, which surrounds thcrod 67, the upperend of the spring bearing against the top of the housing and the lower end resting on a pin 72, which passes through the rod` The rod U7 is provided near its upper end with a shoulder 73.

7l represents a bar or wiper situated at one side of the rod G7. (See Fig. This wiper is formed with a reduced beveled portion ou its face.

76 represents a pin secured to the rear of the wiper Ti, and to this pin is suitably sccured a rod 77, which extends upward and is connected to a governor 78.

79 represents a rod, which is secured at its lower end to the exhaust-valve 3l. This rod passes through a plug 80, secured in the frame Gf), and through a housing 8l, secured to the plug.

82 represents a coil-spring surrounding the rod 79, said spring having the upper end of the plug 8O for its lower bearing and a pin S3 in the rod 70 for its upper bearing.

Si represents a dash-pot having suitable connection with the rod 79, which relieves the force of its upward stroke.

85 represents a shoulder on the rod 79.

SG represents a wipersecured to the bracket 5i and is situated alongside of the rod 79.

87 represents the usual water-chambers surrounding the cylinder, and 8S 89 the water supply and discharge pipes.

The operation is as follows: At the beginning of the upstroke of piston thcmain shaft and double screw are made to rotate, imparting an outward motion to the upper end of the rocking lever, and consequently7 an inward motion of its lower end, causing the pawl to engage the shoulder 73 of the rod G7, which operates the gas-supply valve 19, causing an upward movement of the rod and a consequent lifting of the gas-valve, admitting gas and air in proper proportions to the cylinder. The gas-valve continues to open until the pointof cut-off (indicated bythe governor) is reached, when the wiper 7l, attached to the governor, forces the pawl out of engagement with the shoulder 73. At this point gravity and the spring 7l will cause the gas-valve 19 to close, thus shutting off the supply of At the same time the pawl 13 is raising the gas-valve and admitting a charge of gas by its contact with the beveled portion 5G on the rod 5l it raises the rod 5l until the hook 5S comes on line with the top of the bracket 55, when the rod is forced over either by the action of the pawl or by its beveled face coming in contact with the bracket. lVhen the bar 5l is in its raised position, the valve 39 is in the position shown in Figs. VI and VII, in which position the opening t5 in the valve is out of line with the opening i in the plate 40. lVhile the valve is in this position the gas is admitted to the cylinder, as before described. After the double screw has forced the lower end of the rocking lever inward to its farthest extent it will by its construction begin to force the lever in the opposite direction. As the lower end of the lever is forced outward it will be seen that the link 50 will be drawn outward, and as this link is in engagement with the bar 5l it will draw the bar backward until the hook is out of engagement'. with the bracket 55. At this point the bar 5l will drop by the action of gravity, being assisted by the spring 50. By means of the point G5 and the holes G6 the eccentric Gl may be set so that the link or trip 59 will throw the hook or trigger 58 off IOO IIO

of its bearing at a sooner or later period, as may be desired, thus regulating the time of firing the charge of gas. Vhen the rod 5l passes downward, (see dotted lines, Fig. VL) the valve 39 will be forced around by the lever 42 until the opening 45 in the valve comes on line with the opening 44 in the plate. At this point a portion of the compressed gas in the cylinder will shoot into the tube 46, and as this tube is heated by the flame which comes from the gas-pipe 4S the gas in the tube 46 will become ignited, and the flame shooting into the main cylinder will fire the charge of gas, forcing the piston upward, thus turning the drive-shaft. At every other revolution of the drive-shaft the double screw will cause the inward movement of the upper end of the rocking lever and a consequent outward movement of the lower end of the same, causing the pawl 14 to force the rod 79 downward, which causes the exhaust-valve 34 to open and permit the products of combustion to pass out. Vhen the rod 79 has been depressed to a certain extent, the pawl 14 will come in contact with the wiper 86, which throws itl out of engagement with the rod, and the valve will be closed by means of the spring 82. By means of the dash-pot 84 the closing of the exhaust-valve is cushioned.

I claim as my inventionl. In a gas-engine, the combination of the power-cylinder,piston,piston-rod,drive-shaft, a stationary double screw located on said drive-shaft, and means in connection therewith for operating the supply and exhaust valves, substantially as and for the purpose set forth.

2. In a gas-engine, the combination of a power-cylinde r, piston, piston-rod, drive-shaft, and stationary double screw located on said drive-shaft for obtaining motions parallel with the drive-shaft for the purpose of operating valve-gear, substantially as described, and for the purpose set forth.

3. In a gas-engine, the combination of a drive-shaft, stationary double screw located on the drive-shaft,a rocking lever in engagement with the double screw, and means in connection therewith for operating the supply, ignition, and exhaust valves, substantially as described, and for the purpose set forth.

4. In a gas-engine, the combination of a drive shaft, double screw located on said shaft, a rocking lever in engagement with said double screw, and pawls secured to the rocking lever, whereby the supply, ignition, and exhaust valves are operated, substantially as described, and for the purpose set forth.

5. In a gas-engine, the combination of a drive shaft, double screw located on said shaft, a rocking lever having one of its ends vin engagement with the double screw and the other end provided with pawls which engage with the valve-operating rods, and wipers for disengaging said pawls from said rods, substantially as and for the purpose set forth.

6. In a gas-engine, the combination of a drive-shaft, double screw on said shaft, rocking lever in engagement with the screw, pawls on the rocking-lever, rod 67, for'operating the gas-supply valve, rod 5l, for operating the ignition-valve, wiper situated near the rods, a governor suitably located, and means for connecting the governor with the wiper, so that the wiper may be raised or lowered according to the speed of the governor, substantially as described, and for the purpose set forth.

7. In a gas-engine, the combination of the power-cylinder, piston, pistoni-rod, drive-shaft, a stationary double screw on said drive-shaft, a lever engaged by said screw and fulcrumed to be oscillated in a plane parallel with the shaft, and means in connection with said lever for operating the supply and exhaust valves, substantially as set forth.

8. In a gas-engine, the combination of the valve 39, having an opening 45, a stem 4l, lever 42, the rocking lever having a pawl, a bar connected with lever 42 and adapted to be elevated by said pawl, and means for automatically oscillating said rocking lever, substantially as described, and for the purpose set forth.

9. In a gas-engine, the combination of the valve 39, stem4l, lever 42, and a spring 50, for imparting a circular motion to said valve, substantially as described, and for the purpose set forth.

l0. In a gas-engine, the combination of a suitable ignition-valve, a trigger for holding the valve closed, and an adjustable trip for releasing said trigger connected to a moving part of the engine, substantially as set forth.

ll. In a gas-engine, the combination of the valve 39, rod 5l, means for connectingthe rod with the valve, said rod being provided with a beveled portion 56 and a hook 58, and means in contact with said beveled portion, whereby the hook may be forced into engagement with a fixed point, substantially as described, and for the purpose set forth.

l2. In a gas-engine, the combination of the ignition-Valve 39, rod 5l, having a hook 5S, and a link 59, for the purpose of disengaging the hook from a fixed bearing, substantially as described, and for the purpose set forth. y

13. In a gas-engine, the combination of the ignition-valve 39, valve-rod 5l, link 59, rocking lever l0, and an eccentric on the rocking lever to which one end of the link is secured, substantially as described, and for the purpose set forth.

14. In a gas-engine, the combination of the ignition-valve 39, valve-rod 5l, link 59, rocking lever l0, eccentric 6l, and means for rotating the eccentric and lixing it at any desired point, substantially as described, and for the purpose set forth.

l5. In a gas-engine, the combination of the IOO IIO

ignition-Valve, valve-rod 51, link 59, rocking lever 10, having holes 66, eccentric G1, and spring-arm secured to the eccentric, said arm carrying a point G5, which engages in the openings 66, substantially as described, and for the purpose set forth.

1G. In a gas-engine, the combination of the ignition-Valve and an adjustable trip adapted to permit said valve to open sooner or later While the engine is in motion, substantially as set forth.

17. In a gas-engine, the combination of the valve 39, having an opening` Li5,plate 40, having an opening 44, and a tube 16, secured in the opening, said tube being formed With two horizontal portions and one Vertical portion, the lower portion being detachable in order that the tube may be cleaned out when desired, substantially as described, and for the purpose set forth.

18. In a gas-engine, the combination of the valve 39, tube 4G, connecting with the Valve and having a Vertical portion, a flue 47, surrounding said portion of the tube, and a gaspipe projecting into said flue adjacent to said vertical portion, substantially as described, and for the purpose set forth.

19. In a gas-engine, the combination of the valve 39, tube 4:6,havingavcrtical portion,and flue 47, surrounding said Vertical portion, said {iue having ahood 49, in which is located a gaspipe 48, adjacent to said Vertical portion, substantially as described, and for the purpose set forth.

GEORGE J. VEBER.

In presence of JAS. E. KNIGHT, L. P. ROGERS.