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THREE: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."Near Maastricht. You know where Maastricht is?"

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FORE:There was a light supper in the dining-room. Countess Lalage talked fitfully, from time to time glancing at the clock. The gilt hands were striding on towards a quarter to twelve."Nothing! But, madame, I want to pay for what I drink!"

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FORE:It is probable, however, that Aristotle��s partiality was determined more by the systematising and analytical character of his own genius than by the public opinion of his age; or rather, the same tendency was at work in philosophy and in art at the same time, and the theories of the one were unconsciously pre-adapted to the productions of the other. In both there was a decay of penetration and of originality, of life and of inspiration; in both a great development of whatever could be obtained by technical proficiency; in both an extension of surface at the expense of depth, a gain of fluency, and a loss of force. But poetry lost far more than philosophy by the change; and so the works of the one have perished while the works of the other have survived.This proposition argues the expediency of reducing the proportions of mill gearing and increasing its speed, a change which has gradually been going on for fifty years past; but there are opposing conditions which make a limit in this direction, such as the speed at which bearing surfaces may run, centrifugal strain, jar, and vibration. The object is to fix upon a point between what high speed, light weight, cheapness of cost suggest, and what the conditions of practical use and endurance demand.

Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham

FORE:Professor Noyons took me all over the hospital, and if I should describe all I saw and heard there, that story alone would fill volumes. He took me, for example, to a boy of eight years old, whose shoulder was shattered by rifle-shots. His father and140 mother, four little brothers and a sister, had been murdered. The boy himself was saved because they thought that he was dead, whereas he was only unconscious. When I asked for his parents, brothers and sister, he put up his one hand and, counting by his little fingers, he mentioned their names.Where was the seaplane? Would it climb above the murk, glide straight through it and down, swerve and glide��or dive out and risk leveling off and setting down just beneath the bank so that its rapidly coming folds, and the silent sea would make a safe and comfortable concealment?

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FORE:The functions and adaptations of machinery constitute, as already explained, the science of mechanical engineering. The functions of a machine are a foundation on which its plans are based; hence machine functions and machine effect are matters to which the attention of an apprentice should first [11] be directed."What is it now you have got?" Leona asked.

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FORE:The monotheism of the Jehovist religion would seem to have marked it out as the natural faith of a universal empire. Yet, strange to say, it was not by this element of Judaism that proselytes were most attracted. Our authorities are unanimous in speaking of the sabbath-observance as the most distinguishing trait of the Jews themselves, and the point in which they were most scrupulously imitated by their adherents; while the duty of contributing to the maintenance of the temple apparently stood next in popular estimation. But if this be true, it follows that the liberation of the spiritualistic element in Judaism from its ceremonial husk was a less essential condition to the success of Christianity than some have supposed. What the world objected to in Judaism was not its concrete, historical, practical side, but its exclusiveness, and the hatred for other nations which it was supposed to breed. What the new converts wished was to take the place of the Jews, to supersede them in the divine favour, not to improve on their law. It was useless to tell them that they were under no obligation to observe the sabbath, when the institu219tion of a day of rest was precisely what most fascinated them in the history of God��s relations with his chosen people. And it was equally useless to tell them that the hour had come when the Father should not be worshipped any more at Jerusalem but everywhere in spirit and in truth, when Jerusalem had become irrevocably associated in their minds with the establishment of a divine kingdom on this earth. Thus, while the religion of the Middle Ages reached its intensest expression in armed pilgrimages to Palestine, the religion of modern Puritanism has embodied itself by preference in the observance of what it still delights to call the sabbath.Milling tools are employed at Crewe for roughing out the slots in locomotive crank axles. A number of detachable tools are mounted on a strong disc, so that four to six will act at one time; in this way the displacement exceeds what a lathe can perform when acting continuously with two tools. Rotary planing machines constructed on the milling principle, have been tried for plane surfaces, but with indifferent success, except for rough work.

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THREE:"So you want to buy it from me," he suggested encouragingly."A strange place to meet," he said, "but we have met at last."

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FORE:��Superstitions and all!�� chuckled Dick. THREE:Modern turbine wheels have been the subject of the most careful investigation by able engineers, and there is no lack of mathematical data to be referred to and studied after the general principles are understood. The subject, as said, is one of great complicity if followed to detail, and perhaps less useful to a mechanical engineer who does not intend to confine his practice to water-wheels, than other subjects that may be studied with greater advantage. The subject of water-wheels may, indeed, be called an exhausted one that can promise but little return for labour spent upon it��with a view to improvements, at least. The efforts of the ablest hydraulic engineers have not added much to the percentage of useful effect realised by turbine wheels during many years past.