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    Software name: appdown
    Software type: Microsoft Framwork

    size: 21MB

    Lanuage:Englist

    Software instructions

      97


      2. The necessity for, and consequent saving effected by, power-machinery for handling is mainly in vertical lifting, horizontal movement being easily performed by hand.Even before that, on August 11th I sent a communication, by post or cable (De Tijd, No. 20353), in which the following is found:


      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.

      Lastly, proportions; having estimated the cutting force required at one ton, although less than the actual strain in a machine of this kind, we proceed upon this to fix proportions, [157] beginning with the tool shank, and following back through the adjusting saddle, the cutting bar, connections, crank pins, shafts, and gear wheels to the belt. Starting again at the tool, or point of cutting, following through the supports of the rack, the jaws that clamp it, the saddle for the graduating adjustment, the connections with the main frame, and so on to the crank-shaft bearing a second time, dimensions may be fixed for each piece to withstand the strains without deflection or danger of breaking. Such proportions cannot, I am aware, be brought within the rules of ordinary practice by relying upon calculation alone to fix them, and no such course is suggested; calculation may aid, but cannot determine proportions in such cases; besides, symmetry, which cannot be altogether disregarded, modifies the form and sometimes the dimensions of various parts."Ohoh ... I don't understand you ... let me go ... my little boy ... we have nothing to eat ... we are innocent ... I do not know the gentleman ... oh ... oh!"

      In practice, the truth of this proposition is fully demonstrated by the excess in the number of lathes and boring tools compared with those for planing.


      CHAPTER XII. BELTS FOR TRANSMITTING POWER.

      "Certainly, certainly, sir! Exactly because we hear so many lies from foreign countries about the Germans, I want to try and find out the truth for myself."

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      43 "Oh! Bart, is it you?"

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      The streets leading to the bridge over the Meuse and into the town were also densely thronged with refugees. Here and there large groups listened to the stories told, with profusion of tears, of sufferings inflicted, depicted in far harsher colours than could have been possible. But the wretched creatures exaggerated unconsciously; in their affrighted state they had seen things that had never occurred.

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      "What! A Netherlander? I suppose you come to see how many troops are here, don't you? And then...."


      alllittle