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    Software name: appdown
    Software type: Microsoft Framwork

    size: 291MB

    Lanuage:Englist

    Software instructions

      4. The cost of construction and durability.To avoid imperfection in the running spindles of lathes, or any lateral movement which might exist in the running bearings, there have been many attempts to construct lathes with still centres at both ends for the more accurate kinds of work. Such an arrangement would produce a true cylindrical rotation, but must at the same time involve mechanical complication to outweigh the object gained. It has besides been proved by practice that good fitting and good material for the bearings and spindles of lathes will insure all the accuracy which ordinary work demands.



      "Vis is under a real reign of terror. The day before yesterday the town-crier walked the streets with his bell, and announced that within twenty-four hours everyone had to deliver his bicycle at the bridge. Anyone in whose house92 a bicycle should be found would be shot and his house set on fire. Yesterday morning the Germans announced once more that all arms, including those that were old or damaged or taken to pieces, should be handed in at the town-hall within an hour. If any arms should be found anywhere after that, they would shoot the inhabitants and burn down the town. Eatables and drinkables were requisitioned continuously under threats of firing the town, and the inhabitants are afraid of nothing so much as of the possibility that something may be required some day or other that cannot be produced."A beginner, unless he exercises great care in the pencil-work of a drawing, will have the disappointment to find the paper soon becoming dirty from plumbago, and the pencil-lines crossing each other everywhere, so as to give the whole a slovenly appearance. He will also, unless he understands the nature of the operations in which he is engaged, make the mistake of regarding the pencil-work as an unimportant part, instead [82]of constituting, as it does, the main drawing, and thereby neglect that accuracy which alone can make either a good-looking or a valuable one.

      Details and sketches, when made on a separate sheet, should be to a larger scale than elevations. By changing from one scale to another the mind is schooled in proportion, and the conception of sizes and dimensions is more apt to follow the finished work to which the drawings relate.Matters stood so in Lige on the morning of August 9th, when the second day of the occupation by the Germans had not yet passed. The Belgian field army, which had bravely defended the ground under the protection of the forts, and inflicted heavy losses upon the Germans, had to retreat before their superior numbers, leaving the further defence of the Meuse to the forts. But a high price had been paid for Lige, for the German losses were immense, and on the ninth they were still busy burying their dead. The Germans lost many men, especially near Lixhe and the Forts Bachon and Fleron.

      25


      "But where did you stay then during the night?"

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      This is only a short record of the destruction of Louvain, the truthfulness of which will be firmly and fully established after the war by extensive, accurately drawn up declarations.Shaping machines as machine tools occupy a middle place between planing and slotting machines; their movements correspond more to those of slotting machines, while the operation of the tools is the same as in planing. Some of the advantages of shaping over planing machines for certain kinds of work are, because of the greater facilities afforded for presenting and holding small pieces, or those of irregular shape; the supports or tables having both vertical and horizontal faces to which pieces may be fastened, and the convenience of the mechanism for adjusting and feeding tools.

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      It is important, in asking questions, to consider the mood and present occupation of the person addressed; one question asked when a man's mind is not too much occupied, and when he is in a communicative humour, is worth a dozen questions asked when he is engaged, and not disposed to talk.The duplicate system has gradually made its way in locomotive engineering, and will no doubt extend to the whole of [150] railway equipment, as constants for dimensions are proved and agreed upon.

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      Having pushed my way through the loafers, who stood waiting before the house, I was able to continue my journey to Maastricht.It is important, in asking questions, to consider the mood and present occupation of the person addressed; one question asked when a man's mind is not too much occupied, and when he is in a communicative humour, is worth a dozen questions asked when he is engaged, and not disposed to talk.


      alllittle