THREE:In deed or thought of his, then it might be.Prout gave his information in a low voice. He could trust Hetty, and besides, she might have some valuable information to impart.
TWO:Cutting processes may be divided into two classes: cylindrical cutting, as in turning, boring, and drilling, to produce circular forms; and plane cutting, as in planing, shaping, slotting and shearing, to produce plane or rectangular forms. Abrading or grinding processes may be applied to forms of any kind.
TWO:"Motor car," the stolid dragoon replied. "I've got a fifteen horsepower Daimler that I can knock seventy miles an hour out of at a pinch. And no danger of being picked up for scorching on a dark night like this."
Hes drawing up the wheels, now, Sandy called to Dick.V.Different kinds of gearing can be seen in almost every engineering establishment, and in view of the amount of scientific information available, it will only be necessary to point out some of the conditions that govern the use and operation of the different kinds of wheels. The durability of gearing, aside from breaking, is dependent upon pressure and the amount of rubbing action that takes place between the teeth when in contact. Spur wheels, or bevel wheels, when the pitch is accurate and the teeth of the proper form, if kept clean and lubricated, wear but little, because the contact between the teeth is that of rolling instead of sliding. In many cases, one wheel of a pair is filled with wooden cogs; in this arrangement there are four objects, to avoid noise, to attain a degree of elasticity in the teeth, to retain lubricants by absorption in the wood, and to secure by wear a better configuration of the teeth than is usually attained in casting, or even in cutting teeth.The hour had come to show her pluck and courage, and Hetty was not going to flinch. It wanted ten minutes to twelve by the clock on the dressing-table.CHAPTER VII. THE SYSTEMATIC PHILOSOPHY OF ARISTOTLE.
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THREE:
THREE:CHAPTER VLige now loomed up in the distance, and the nearer I got, the more civilians I met. They all wore a white armlet, and walked timidly and nervously by the side of the road or street, starting at39 each thunder-clap of the guns. Near the entrance to the town a small crowd stood on one of the hills, looking at a flying-machine moving from fort to fort and over the city, obviously investigating the effect of the German siege-guns.
