ENGLISH 三上悠亚画像大量The wounded civilians had been put up in the small schoolrooms. Some of them must soon die. Some had burns, but most of them were hit the previous night during the mad outbreak, the mad shooting of the drunken and riotous Germans. In another room a number of old women were crowded together, who had to fly but could not walk all the way to the Netherland frontier.The faces of the dies remain parallel, no matter how large the piece may be that is operated upon, while with a trip-hammer, the top die moves in an arc described from the trunnions of the helve, and the faces of the dies can only be parallel when in one position, or when operating on pieces of a certain depth. This feature of parallel movement with the dies of crank-hammers is of great importance on some kinds of work, and especially so for machine-forgings where the size or depth of the work is continually being varied.
The gearing of these machines is alluded to here mainly for the purpose of calling attention to what constitutes a new and singular mechanical movement, one that will furnish a most interesting study, and deserves a more extended application in producing slow reciprocating motion."I am a Netherland journalist, and want to ask the commander's permission to go to Lige."ROUND ABOUT LIGE
Leaving out the matter of a positive relative movement between shafts, which belts as a means of transmitting power cannot insure, there are the following conditions that must be considered in determining whether belts or other means should be employed in transmitting power from one machine to another or between the parts of machines."Have you been there already? I am going there too. How are things there?"
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Next day I was already back in Lige, where much was changed after my last visit. The Germans went on terrorising the inhabitants, and these, being extremely frightened, looked with suspicion at every stranger. In the streets was the smoke of burning houses, especially from Outre-Meuse.This terrible tragedy took place at scarcely six yards from the Netherland frontier, for the burgo101master's house stands by a road half Belgian and half Netherland. The Netherland soldiers who were doing frontier-duty on the latter part had to fly from the mad shooting of the Germans. They hid behind a wall that was quickly full of bullet-holes. The German soldiers spent a considerable time guzzling the burgomaster's wine, which they looted, and afterwards went off in the direction of Tongres.
For implements procure two drawing-boards, forty-two inches long and thirty inches wide, to receive double elephant paper; have the boards plain without cleets, or ingenious devices for fastening the paper; they should be made from thoroughly seasoned lumber, at least one and one-fourth inches thick; if thinner they will not be heavy enough to resist the thrust of the T squares.My request to allow the child to stay at the caf for half an hour was granted, and I went through the village towards the place whence the German batteries sent their destructive fire. At last I got as far as the top of a hill, from which I could see two forts shrouded in a cloud of smoke, which was also the case with the German batteries.After determining the ultimate objects of an improvement, and laying down the general principles which should be followed in the preparation of a design, there is nothing connected with constructive engineering that can be more nearly brought within general rules than arranging details. I am well aware of how far this statement is at variance with popular opinion among mechanics, and of the very thorough knowledge of machine application and machine operation required in making designs, and mean that there are certain principles and rules which may determine the arrangement and distribution of material, the position and relation of moving parts, bearings, and so on, and that a machine may be built up with no more risk of mistakes than in erecting a permanent structure.
But he did not take any notice of all my exhortations and was entirely impervious to them in his grief. So I went to the station side by side with the weeping man, and surrounded by the six soldiers. The crackle of the flames, the sound of collapsing houses seemed more terrifying in the night than in day-time, and now and again I got a shock when suddenly, by the uncertain light of the flames, I saw the corpse of a civilian lying in the dark shade of the tall trees on the Boulevard.General engineering work cannot consist in the production of duplicate pieces, nor in operations performed constantly in the same manner as in ordinary manufacturing; hence there has been much effort expended in adapting machines to general purposesmachines, which seldom avoid the objections of combination, pointed out in a previous chapter.During the early days of the war the papers published a report, of German origin, that Vis had been destroyed because francs-tireurs had appeared. I was therefore not a little amazed when, arriving there on August 8th, I found the townlet entirely undamaged, and even the German military admitted that they had not heard a word about francs-tireurs.
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The combination of several functions in one machine, although it may not seem an important matter to be considered here, is nevertheless one that has much to do with the manufacture of machines, and constitutes what may be termed a principle of construction.As these shop processes or operations are more or less connected, and run one into the other, it will be necessary at the beginning to give a short summary of them, stating the general object of each, that may serve to render the detailed remarks more intelligible to the reader as he comes to them in their consecutive order.
Power-hammers operated by crank motion, adapted to the lighter kinds of work, are now commonly met with in the forging-shops of engineering establishments. They are usually of very simple construction, and I will mention only two points in regard to such hammers, which might be overlooked by an apprentice in examining them.To the unskilled, or to those who do not take a comprehensive view of an engineering business as a whole, the finishing and fitting department seems to constitute the whole of machine manufacturean impression which a learner should guard against, because nothing but a true understanding of the importance and relations of the different divisions of an establishment can enable them to be thoroughly or easily learned.
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