ONE:When he was gone I gazed for some moments in silence at all these men and guns, destined to go and destroy by and by the heroes, who have done so much harm to the Germans, under command of the brave lieutenant Count de Caritat, burgomaster of Lanaeken. I thought of that brave Belgian from Dinant whom I met on his solitary outpost outside Lanaeken, and if I had acted according to my heart's desire, I should have sneaked away to the threatened point in order to warn those courageous men of the approaching disaster.
TWO:Founding and casting relate to forming parts of machinery by pouring melted metal into moulds, the force of gravity alone being sufficient to press or shape it into even complicated forms. As a process for shaping such metal as is not injured by the high degree of heat required in melting, moulding is the cheapest and most expeditious of all means, even for forms of regular outline, while the importance of moulding in producing irregular forms is such that without this process the whole system of machine construction would have to be changed. Founding operations are divided into two classes, known technically as green sand moulding, and loam or dry sand moulding; the first, when patterns or duplicates are used to form the moulds, and the second, when the moulds are built by hand without the aid of complete patterns. Founding involves a knowledge of mixing and melting metals such as are used in machine construction, the preparing and setting of cores for the internal displacement of the metal, cooling and shrinking strains, chills, and many other things that are more or less special, and can only be learned and understood from actual observation and practice.They drank deep, in long draughts, with trembling lips, and beseeched us not to leave them again: "Oh, gentlemen, then we shall die!" We swore that we should come back, and that later on carriages would arrive from Louvain to take them to some convent or hospital; and, trusting us, they resigned themselves in the end.
ONE:Didnt she suspect any trickwas there a trick?Even the very imperfect means of information supplied by the literature of the empire were not utilised to the fullest extent. It was naturally the writers of most brilliant genius who received most attention, and these, as it happened, were the most prejudiced against their contemporaries. Their observations, too, were put on record under the form of sweeping generalisations; while the facts from which a different conclusion might be gathered lay scattered through the pages of more obscure authorities, needing to be carefully sifted out and brought together by those who wished to arrive at a more impartial view of the age to which they relate.
TWO:Trip-hammers employed in forging bear a close analogy to, and were no doubt first suggested by, hand-hammers. Being the oldest of power-forging machines, and extensively employed, it will be proper to notice trip-hammers before steam-hammers."Are you? There is a well in that courtyard. And if perchance anything valuable got into that well, I should say that a rope would be the best way of getting it out. Now do you understand."
ONE:"Go on," she whispered. "Go on, mine enemy."(1.) What peculiarity belongs to the operation of forging to distinguish it from most others?(2.) Describe in a general way what forging operations consist in.(3.) Name some machines having percussive action.(4.) What may this principle of operating have to do with the framing of a machine?(5.) If a steam-hammer were employed as a punching-machine, what changes would be required in its framing?(6.) Explain the functions performed by a hand-hammer.
TWO:This work, as already explained, is to be devoted to mechanical engineering, and in view of the difference of opinion that exists as to what mechanical engineering comprehends, and the different sense in which the term is applied, it will be proper to explain what is meant by it here.
