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Description: |
| Abstract:
The object of the said invention is to provide mechanism for regulating the speed of the engine and at the same time reduce the wear upon the essential parts by allowing them to remain at rest when the speed of the engine rises above that required, and also to obtain the full power of the engine by allowing the piston to travel back and forth in the cylinder without being called upon to compress extra charges of air between the power strokes, thus saving this extra power and obtaining the greatest economy in the use of fuel.
The foregoing objects are accomplished by stopping the side shaft of the engine in such a position that the cam which opens and closes the exhaust-valve will be in a position to hold the valve open to allow the air to pass freely in and out through it as required by the movement of the piston.
A further object of the invention is to provide a simplified construction of the igniting devices for firing the power charges in a manner that avoids an unnecessary consumption of the battery, by which the explosions are timed while the engine is in motion.
Claims:
1. In a gas-engine, the combination with a crank shaft, and a centrifugal governor geared thereto; of a side shaft; a loose-running gear mounted thereon, and driven continuously from the crank-shaft; a disk driven with said gear; a pivotal dog carried on said disk, and mechanism actuated by the variable speed of the centrifugal governor to effect an engagement of said dog with the side shaft, or to permit of the disengagement of said parts, substantially as and for the purposes specified.
2. In a gas-engine, the combination with the power-cylinder provided with a valve-chamber in its side; a gas-admission valve opening into said chamber, and a mixture-admission valve, and an exhaust-valve opening into the power-cylinder; of a side shaft; cams mounted on said shaft; tappets interposed between said cams and the stems of the respective valves; a loose-running gear on said shaft continuously driven from the crankshaft; a pivotal dog carried around by said gear and adapted to interlock said gear with the side shaft; a centrifugal governor, and mechanism controlled by the variable speed of said governor, substantially as and for the purposes specified.
3. In a gas-engine, the combination with a power-cylinder, a mixture-admission valve; and an exhaust-valve con trolling ports in the side of said cylinder; and a gas-admission valve adjacent to said mixture-valve; of a cam-shaft a loose-running gear on said shaft, continuously driven by the crank-shaft; a pivotal dog carried by said gear; a centrifugal governor geared to the crank-shaft; and mechanism controlled by said governor adapted to effect an engagement of said dog with the cam-shaft to rotate the latter and thereby cause an alternate opening of the valves as described, or to enable a disengagement of said dog with the cam-shaft and thereby cause said shaft to stop, at which time the exhaust-valve is held open, substantially as and for the purposes specified.
4. In a gas-engine, the combination with a crank-shaft; a centrifugal governor geared thereto; a gas-admission valve opening into a mixing chamber; a mixture admission valve, and an exhaust-valve controlling ports in the side of the cylinder, of a side shaft provided with cams to operate said-valves; a gear loosely mounted on said shaft, and continuously driven by the crankshaft; a dog adapted to interlock said gear with the side shaft; a centrifugal governor geared to the crank-shaft, and mechanism actuated by the speed of said governor, whereby said engagement of the dog with the side shaft is effected or prevented, according to the variable speed of the governor, substantially as and for the purposes specified.
5. In a gas-engine, the combination with a crank-shaft, a centrifugal governor geared thereto, and a side shaft having a gear loosely mounted thereon and driven from said crankshaft, of a lever actuated by the increasing speed of said governor, a spring controlling said lever when the latter is free from the control of the governor, a disk movable with the gear on the side shaft, a dog carried on said disk, and mechanism interposed between said dog and lever for effecting a disengagement of said dog with the side shaft, and for permitting such engagement, substantially as and for the purposes specified.
6. In a gas-engine, the combination with a crank-shaft, a centrifugal governor geared thereto, and a side shaft having a gear loosely mounted thereon and driven by said crankshaft, of a lever movable by said governor as the speed of the engine increases, a spring controlling said lever when the latter is free from the control of the governor, a pivotal piece inclosing the end of said lever, and movable in either direction by said lever, a dog adapted to interlock the side shaft with the gear thereon, and a pawl movable by said pivotal piece to a position to release said dog from engagement with said shaft, and to permit said dog to become reengaged with said shaft, substantially as and for the purposes specified.
7. In a gas-engine, the combination with a gas-admission valve controlling the inlet of gas to a mixing-chamber, and a mixture-ad mission valve controlling the admission of the explosive mixture to the power-cylinder, a bell-crank lever to simultaneously open said valves, a side shaft, and a cam thereon to actuate said lever, a gear loosely mounted on said side shaft, and driven by the crankshaft, a dog pivoted to said gear, and adapted to interlock said gear with the shaft, and mechanism interposed between said dog and the governor, whereby the said gear is enabled to run loose on the shaft, and the shaft permitted to stop, substantially as and for the purposes specified.
8. In a gas-engine, the combination with a crank-shaft, a governor geared thereto, and a side shaft, of a loose-running gear on said shaft driven from the crank-shaft, a dog carried on said gear and adapted to interlock said gear with the shaft and cause them to rotate together, mechanism interposed between said dog and the governor, and adapted to unlock said gear and shaft, an igniter-rod, and a cam on said shaft adapted to actuate said igniter-rod, the said cam being susceptible of an adjustment to lessen or increase the contact of the electrodes, as herein shown and described.
9. In a gas-engine, a movable electrode, in combination with an igniter-rod consisting of two members having their adjacent ends enclosed between resilient plates s'' and s3 and a similar plate s4 attached to the outer end of said rod, substantially as herein shown and described.
10. In a gas-engine, an igniter-rod consisting of two members having their adjacent ends enclosed between resilient plates, and a similar plate attached to its outer end, in combination with a reversible cam adapted to vary the movement of said igniter-rod, a side shaft upon which the said cam is carried, and mechanism affected by the governor for controlling the movement of said shaft, substantially as described.
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