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    Software name: appdown
    Software type: Microsoft Framwork

    size: 897MB

    Lanuage:Englist

    Software instructions

      "Tell me, father," he began, "did you allow this man by your side to stay the night at your house?"


      "The larger ones had suffered little; but the majority were jammed by fragments of concrete and steel, which struck between the armour and the front-armour. The small quick-fire cupolas had not been touched by any projectile. 'It is all right,' he said, 'we shall be able to repulse the enemy's attack.'Third.Each blow given is an independent operation, and can be repeated at will, while in other hammers such changes [110] can only be made throughout a series of blows by gradually increasing or diminishing their force.


      If a drawing is to be elaborate, or to remain long upon a board, the paper should be pasted down. To do this, first prepare thick mucilage, or what is better, glue, and have it ready at hand, with some slips of absorbent paper an inch or so wide. Dampen the sheet on both sides with a sponge, and then apply the mucilage along the edge, for a width of one-fourth or three-eighths of an inch. It is a matter of some difficulty to place a sheet upon a board; but if the board is set on its edge, the paper can be applied without assistance. Then, by placing the strips of paper along the edge, and rubbing over them with some smooth hard instrument, the edges of the sheet can be pasted firmly to the board, the paper slips taking up a part of the moisture from the edges, which are longest in drying. If left in this condition, the centre will dry first, and the paper be pulled loose at the edges by contraction before the paste has time to dry. It is therefore necessary to pass over the centre of the sheet with a wet sponge at intervals to keep the paper slightly damp until the edges adhere firmly, when it can be left to dry, and will be tight and smooth. In this operation much will be learned by practice, and a beginner should not be discouraged by a few failures. One of the most common difficulties in mounting sheets is in not having the gum or glue thick enough; when thin, it will be absorbed by the wood or the paper, or is too long in drying; it should be as thick as it can be applied with a brush, and made from clean Arabic gum, tragacanth, or fine glue."Four days ago her husband was buried. As he was addressing the League of Old-Retraitants at Cherath he was seized by a paralytic stroke, which proved fatal. She has no longer a home, beautiful Villa Rustica being completely burnt out, and now in ruins. But she refuses to return to The Netherlands, as she is still able to be of service to the people here.

      The lathe as a tool for producing heliacal forms would occupy a prominent place among machine tools, if it were capable of performing no other work; the number of parts of machinery which have screw-threads is astonishing; clamping-bolts to hold parts together include a large share of the fitting on machinery of all kinds, while screws are the most common means for increasing power, changing movements and performing adjustments.[170]

      Cutting tools include nearly all that are employed in finishing; lathes, planing machines, drilling and boring machines, shaping, slotting and milling machines, come within this class. The machines named make up what are called standard tools, such [120]as are essential and are employed in all establishments where general machine manufacture is carried on. Such machines are constructed upon principles substantially the same in all countries, and have settled into a tolerably uniform arrangement of movements and parts.


      The extreme nicety with which gauging implements are fitted seems at first thought to be unnecessary, but it must be remembered that a cylindrical joint in ordinary machine fitting involves a precision almost beyond the sense of feeling, and that any sensible variation in turning gauges is enough to spoil a fit.

      It is not always an easy matter to hit upon an object to which designs may be directed; and although at first thought it may seem that any machine, or part of a machine, is capable of improvement, it will be found no easy matter to detect existing [153] faults or to conceive plans for their remedy.

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      It is no uncommon thing for a skilled latheman to lock the slide rest, and resort to hand tools on many kinds of work when he is in a hurry.

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      As to the practical results which may be attained by a gauging system, it may be said that they are far in advance of what is popularly supposed, especially in Europe, where gauges were first employed.The intricacy of the subject renders it a difficult one to deal with except by the aid of diagrams, and as such mechanism may be inspected in almost any machine fitting shop, attention is called to the subject as one of the best that can be chosen for demonstration by diagrams. Problems of these variable speed movements are not only of great interest, but have a practical importance not found in many better known problems which take up time uselessly and have no application in a practical way.

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      The quality of castings is governed by a great many things besides what have been named, such as the manner of gating or flowing the metal into the moulds, the temperature and quality of the iron, the temperature and character of the mouldthings which any skilled foundryman will take pleasure in explaining in answer to courteous and proper questions.So I thought that I might chance it. The house was some distance from the station, near the railway line; opposite stood a sort of goods station guarded by six soldiers. Before entering the house I had a chat with them, for I thought that if I explained my position and told them that the commanding officer gave me permission to pass the night in that house, I should be much safer if anything should happen during the night, because they knew then that they had to deal with a neutral journalist. They might moreover warn me should the fire that was raging all around reach that house. So I told the whole story to these fellows, who were also more than half drunk, showed them my passports, gave them some cigars, and after a friendly chat went123 to the old man who was to put me up for the night.


      alllittle