...proportion to their distance from the fulcrum. The force of the steam will tend to push up the plug, (valve,) and permit the escape of the steam ; the...plug and prevent the exit of steam. The valve will be open or shut, according to the relative strength of these forces acting on it in opposite directions....

...proportion to their distance from the fulcrum. The force of the steam will tend to push up the plug, (valve,) and permit the escape of the steam; the atmospheric...plug, and prevent the exit of steam. The valve will be open or shut, according to the relative strength of these forces acting on it in opposite directions....

...plug attached, which closes the tube. At the other extremity of the lever, weights may be attached at different distances from the fulcrum, which will...according to the relative strength of these forces, acting on it in opposite directions. Sometimes the valve becomes impaired, and accidents may occur...

...attached at different distances from the fulcrum, which will possess the power of keeping down the valva or plug, ' in proportion to their distance from the...or valve, and permit the escape of the steam. The atmospneric pressure, and the weight attached to the lever, will tend to press down the plug, and prevent...

...proportion to their distance from the fulcrum. The force of the steam will tend to push up the plug (valve), and permit the escape of the steam ; the...plug, and prevent the exit of steam. The valve will be open or shut, according to the relative strength of these forces acting on it in opposite directions....