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Cutting, as a process in converting material, includes the force to propel cutting edges, means to guide and control their action, and mechanism to sustain and adjust the material acted upon. In cutting with hand tools, the operator performs the two functions of propelling and guiding the tools with his hands; but in what [58] is called power operations, machines are made to perform these functions. In nearly all processes machines have supplanted hand labour, and it may be noticed in the history and development of machine tools that much has been lost in too closely imitating hand operations when machines were first applied. To be profitable, machines must either employ more force, guide tools with more accuracy, or move them at greater speed, than is attainable by hand. Increased speed may, although more seldom, be an object in the employment of machinery, as well as the guidance of implements or increased force in propelling them. The hands of workmen are not only limited as to the power that may be exerted, and unable to guide tools with accuracy, but are also limited to a slow rate of movement, so that machines can be employed with great advantage in many operations where neither the force nor guidance of tools are wanting. このページの先頭です
ONE:"A vulgar one," said Lawrence. "Robbery either from the person or indirectly. I don't see how anybody could possibly be jealous of a poor misshapen creature like that. We can put the socialistic element out of the case. Have you found anything?"To construe the term "transmission of power" in its full sense, it will, when applied to machinery, include nearly all that has motion; for with the exception of the last movers, or where power passes off and is expended upon work that is performed, all machinery of whatever kind may be called machinery of transmission. Custom has, however, confined the use of the term to such devices as are employed to convey power from one place to another, without including organised machines through which power is directly applied to the performance of work. Power is transmitted by means of shafts, belts, friction wheels, gearing, and in some cases by water or air, as various conditions of the work to be performed may require. Sometimes such machinery is employed as the conditions do not require, because there is, perhaps, nothing of equal importance connected with mechanical engineering of which there exists a greater diversity of opinion, or in which there is a greater diversity of practice, than in devices for transmitting power.
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ONE:"It--it proves nothing," she said with an effort, presently. "A pleasant face. Don't you think that she is a little like me?"
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TWO:Not somebodysomething! corrected Sandy. The same something that worked the door and shut it!

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TWO:"I am not very easily impressed," she said, "and as to that Spanish woman--eh, Dr. Bruce must have been taking lessons from Mr. Lawrence.""He took the picture away," he said, "and I thought no more of the matter, he said something about going to Antwerp. In the face of the damning evidence you have piled up against me, my story sounds hysterical and foolish."

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TWO:"I have gone to my limit," he said. "Gordon, give me a brandy and soda. Would you like to take my place, Lady Longmere?"I.

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TWO:There is much in Mr. Mokveld's narrative to interest the historian. For example, he gives a 6 fuller account than we have yet had of that obscure period when Lige had fallen, but its northern forts were still holding out. But it is less a history of the campaign than a chronicle of those lesser incidents of war which reveal the character of the combatants. No more crushing indictment of German methods has been issued, the more crushing since it is so fair and reasonable. The author has very readily set down on the credit side any act of German humanity or courtesy which he witnessed or heard of. But the credit side is meagre and the black list of crimes portentous. Episodes like the burning of Vis and the treatment of British prisoners in the train at Landen would be hard to match in history for squalid horror.
THREE:He had no time to pay attention to that situation. The imminent culmination of the race chained his gaze.
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THREE:He had no questions to ask; there was no doubt on his face. If ever a man was telling the simple truth it was Bruce at that moment. There was something like a smile on Maitrank's face when Bruce came to the part that Hetty had played in the stirring drama of the previous night.62