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We possess but few notices, and fewer assured representations, from which to form an opinion of the physical characteristics of the Babylonians. Except upon the cylinders, there are extant only three or four representations of the human forms by Babylonian artists, and in the few cases where this form occurs we cannot always feel at all certain that the intention is to portray a human being.
285.Q. What is the best diameter for the tubes of locomotive boilers? A. Bury's locomotive with 14 inch cylinders contains 92 tubes of 2-1/8th inches external diameter, and 10 feet 6 inches long; whereas Stephenson's locomotive with 15 inch cylinders contains 150 tubes of 1-5/8ths external diameter, 13 feet 6 inches long.
In one of Crampton's locomotives, the Liverpool, with one set more of carrying wheels than the fig., the cylinders are of 24 inches diameter and 18 inches stroke; the driving wheels are 8 feet in diameter; the fire grate contains 21-1/2 square feet of area; and the heating surface of the fire box is 154 square feet.
The Ya-chou tea, when gathered and dried, is bought up and brought into the towns to be made into the brick tea of Tibetan commerce. The preparation consists in chopping fine the tea and adulterating leaves and twigs. After adding a little rice-water the whole is packed in cylinders of bamboo matting, each package weighing from sixteen to eighteen catties.
Then a steel plate, k, 1.3 inches wide by 0.2 inch thick, is placed against the cylinder, and against this plate again is placed a cardboard disk, 1.34 inches wide by 0.4 inch thick. This completely closes the hollow space. The steel plates and heads are marked with the figures 1 and 2, which, through the pressure, are impressed upon the leaden cylinders.
Grief, with glaring eyes, greasy and battered, yelled and cursed them both down and issued commands. Mulhall, the supercargo, and Hermann were set to work in the cabin at double-straining and triple-straining the gasoline. A hole was chopped through the engine room floor, and a Kanaka heaved bilge-water over the cylinders, while Grief continued to souse running parts in oil.
After he had made his "mats" he continued with the other kind of gold fillings, such as he would have occasion to use during the week; "blocks" to be used in large proximal cavities, made by folding the tape on itself a number of times and then shaping it with the soldering pliers; "cylinders" for commencing fillings, which he formed by rolling the tape around a needle called a "broach," cutting it afterwards into different lengths.
The connectin' rods was wabbly on the shaft, the gears complained scandalous, and the hit-and-miss average of the cylinders was about 33 per cent. But after a few preliminary jack-rabbit jumps she begun to get headway, and the next I knew our driver was leanin' over his wheel like he was after the Vanderbilt Cup.
"There are some empty cylinders on board," went on the inventor. "All that is necessary to do is to put equal parts of sand, water and my powder into the cylinders and then screw on the caps to produce almost pure hydrogen gas at tremendous pressure. You follow me?" "Yes," said Frank, "when can we do this?" "Why, to-morrow morning," was the reply. "The actual inflation will take but little time."
Manly made a number of experiments, and finally decided on radial design, in which the cylinders are so rayed round a central crank-pin that the pistons act successively upon it; by this arrangement a very short and compact engine is obtained, with a minimum of weight, and a regular crankshaft rotation and perfect balance of inertia forces.
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