. Bulletin - United States National Museum. Science. in which he could see by the rising of the water how rapidly the air was taken up, and he was surprised to see how soon all the air was exhausted, and the stream became irregular and jerky on the moment of the return of the strokes. He said he had a way of remedying this. He would throw away the air vessel and put in its place an open-top cylinder, with piston and rod and crosshead, with rods extending from it to a series of springs under the engine box. Father asked, why not put a floating piston in a cylindrical air v
. Bulletin - United States National Museum. Science. in which he could see by the rising of the water how rapidly the air was taken up, and he was surprised to see how soon all the air was exhausted, and the stream became irregular and jerky on the moment of the return of the strokes. He said he had a way of remedying this. He would throw away the air vessel and put in its place an open-top cylinder, with piston and rod and crosshead, with rods extending from it to a series of springs under the engine box. Father asked, why not put a floating piston in a cylindrical air vessel to separate the air from the water, and still use the air above it for the spring to maintain a steady stream? He said he had thought of that, but the piston would be out of sight, and always out of order: the leather cup packing would become dry, the water would pass it, and the spring soon be lost. He said he proposed using a q inch plunger, with a cylinder double its area, and give from 16 to 18 inches stroke; then, with the same number of strokes per minute, he would throw 50 per cent more water than Lyon's "; Father asked him how he proposed to arrange levers to man them to give so great a length of stroke. His reply was: "Bless you, I don't intend to use levers at all. I have been blamed enough for using Lyon's or rather Adam Eckfeldt's. folding levers on my village engines. I shall dispense with them altogether, and in doing so with a great ; He then went on, saying: "Imagine a bell crank with a pendulum arm and a shorter arm at right angles that takes hold of the pitman that is attached inside. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithso
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
