id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
13939	Various	Scientific American Supplement, No. 484, April 11, 1885			.txt	text/plain	35588	1817	70	cylinder and piston engine.--Watt's experiments.--First gas The late Sir William Siemens worked for many years on combustion engines, The engine consists of a vertical open topped cylinder, in which works a double acting beam condensing engine in successful work. The first gas engine that was actually at work for some years; and was engines of this time, the combustion of gas and air was used to produce a From this time on, a continuous series of gas engine patents appear, 20 which the gas engines of to-day are constructed, many years elapsing concerned in the economical and efficient working of gas engines, in order that in a high pressure steam engine in commencing at half stroke. use for engines of moderate power, and led inventors to work to obtain Dr. Siemens worked for some twenty years on gas engines, but he aimed is more expensive than coal, and for large powers the steam engine is	./cache/13939.txt	./txt/13939.txt