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ONE:Separating machines, such as bolts and screens, which may be called a class, require no explanation. The employment of magnetic machines to separate iron and brass filings or shop waste, may be noted as a recent improvement of some importance.

ONE:Water-wheels or water-engines.5. Symmetry of appearance, which is often more the result of obvious adaptation than ornamentation.

ONE:Referring again to the hammer problem, it will be found by examining the history that the makers of automatic-acting steam-hammers capable of giving the dead stamp blow, have employed the principle which has been described. Instead of employing the momentum, or the gravity of moving parts, to open the valve after the hammer stops, some engineers have depended upon disengaging valve gear by the concussion and jar of the blow, so that the valve gearing, or a portion of it, fell and opened the valve. The 'dead blow gear,' fitted to the earlier Nasmyth, or Wilson, hammers, was constructed on the latter plan, the valve spindle when disengaged being moved by a spring.

ONE:Jeff leveled and their engine roared. In a quartering course, evidently making in an airline for some point on the Connecticut side of Long Island Sound, the seaplane held its way.The doctor now became more communicative on other matters. According to him the Germans contended that the inhabitants had been shooting from windows and cellars, in order to prevent the120 garrison from assisting their comrades, who were fighting a battle against the Belgians at a distance of about four miles and a half from the town. Such an organised action of the inhabitants, under the tyrannical rule of the Germans during the eight days before the destruction, he called impossible, and therefore the whole accusation absurd. At any rate they had felt that the destruction was coming, and had been planned systematically, for during those eight days the Germans had plundered the population, and taken from them all bread, even what they required to feed themselves.

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THREE:It must always be remembered that what is to be learned should not be estimated according to a learner's ideas of its importance. A manager and workmen generally look upon fitting as one of the most honourable and intelligent of pursuits, deserving of the respect and best efforts of an apprentice; and while a learner may not think it a serious thing to make a bad fit, or to meet with an accident, his estimate is not the one to judge from. The least word or act which will lead workmen to think that an apprentice is indifferent, at once destroys interest in his success, and cuts off one of the main sources from which information may be derived.

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ONE:"If I could get into the house," Hetty said, "I would cheerfully do what you ask."

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THREE:

THREE:Flat or plane joints nearly always admit of adjustment between the fitted surfaces; that is, the material scraped or ground away in fitting can be compensated by bringing the pieces nearer together; but parallel cylindrical joints cannot even be tried together until finished, consequently, there can be nothing cut away in trying them together. Tapering, or conical joints, can of course be trial-fitted, and even parallel fits are sometimes made by trial, but it is evident that the only material that can [149] be cut away in such cases, is what makes the difference between a fit too close, and one which will answer in practice.

THREE:II.

ONE:"Ah, there comes Mister Tijd, and he

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ONE:"ENOUGH DESTROYED, ENOUGH DISTRESSED!

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THREE:Far behind them in their swift chase, with every ounce of power put into their engine and their whole hearts urging it to better speed, the Sky Patrol saw the amphibian swerve toward shore and give up the try for whatever that precious life preserver had attached to it.