2021-04-14 01:13:26

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ENGLISH In the manufacture of machines, there are usually so many sizes and modifications, that drawings should assist and determine in a large degree the completeness of classification and record. Taking the manufacture of machine tools, for example: we cannot well say, each time they are to be spoken of, a thirty-six inch lathe without screw and gearing, a thirty-two inch lathe with screw and gearing, a forty-inch lathe triple geared or double geared, with a twenty or thirty foot frame, and so on. To avoid this it is necessary to assume symbols for machines of different classes, consisting generally of the letters of the alphabet, qualified by a single number as an exponent to designate capacity or different modifications. Assuming, in the case of engine lathes, A to be the symbol for lathes of all sizes, then those of different capacity and modification can be represented in the drawings and records as A1, A2, A3, A4, and so on, requiring but two characters to indicate a lathe of any kind. These symbols should be marked in large plain letters on the left-hand lower corner of sheets, so that the manager, workman, or any one else, can see at a glance what the [86] drawings relate to. This symbol should run through the time-book, cost account, sales record, and be the technical name for machines to which it applies; in this way machines will always be spoken of in the works by the name of their symbol.Many clerical gentlemen connected with the University had been ill-treated in the most atrocious manner. The architect Lenertz, a native of Luxemburg, also connected with the University, had been shot, for no reason at all, before the eyes of his wife at the moment that he left the house. And Louvain was so effectively cut off from the outer world that in most convents I was asked whether the rumour was true that the Pope was dead! And at that time his successor had already been appointed.

Five minutes later the smoke had disappeared almost, and I was able to see what had happened on the field in front of me. Terrible! On all sides lay scattered the lads, who but a short time ago started with so much enthusiasm, and here and there a gun knocked over, five, six corpses lying around it.

On the Thursday of the week of destruction the inhabitants were notified that they had to leave the town, but Professor Noyons and his wife decided to stay on, as they could not leave the one hundred and fifty wounded men who were laid up at the Institution.May all the nations of the world after the war collaborate to compensate Louvain for her martyrdom, see that this city shall be restored to her former, happy prosperity, and get a library which approaches as much as possible the one she lost. The Germans can probably do their part by investigating where the motor-cars went which left the Halls on that wretched Tuesday night, heavily laden with books.So I was left there. The Netherlanders refused to pull me across in consequence of an exaggerated fear of violating their neutrality; the Germans in front of me intended, it was said, to shoot me down as soon as I ventured to get near. But to retrace my steps ... that is a thing I had never done yet. For a few moments I stood there undecided, but then made up my mind to see what was going to happen, and went on, in spite of the warnings of the kind-hearted innkeeper and his family, who called out to me to return.

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Castings are of course sprung by the action of unequal strains, caused by one part cooling or 'setting' sooner than another. That far all is clear, but the next step takes us into the dark. What are the various conditions which induce irregular cooling, and how is it to be avoided?Drilling differs in principle from almost every other operation in metal cutting. The tools, instead of being held and directed by guides or spindles, are supported mainly by the bearing of the cutting edges against the material.

There is, perhaps, no one who has achieved a successful experience as an engineer but will acknowledge the advantages derived from early efforts to generate original designs, and none who will not admit that if their first efforts had been more carefully directed, the advantages gained would have been greater.Shaping machines as machine tools occupy a middle place between planing and slotting machines; their movements correspond more to those of slotting machines, while the operation of the tools is the same as in planing. Some of the advantages of shaping over planing machines for certain kinds of work are, because of the greater facilities afforded for presenting and holding small pieces, or those of irregular shape; the supports or tables having both vertical and horizontal faces to which pieces may be fastened, and the convenience of the mechanism for adjusting and feeding tools.Fourth.Cores, where used, how vented, how supported in the mould, and I will add how made, because cores that are of an irregular form are often more expensive than external moulds, including the patterns. The expense of patterns is often greatly reduced, but is sometimes increased, by the use of cores, which may be employed to cheapen patterns, add to their durability, or to ensure sound castings.

Although I had got farther on my way than I had dared to expect, my journalist's heart longed for more. If I could get to Lige, which was said to have just been taken! But my passport stated that I was only allowed to go to Vis. I thought the matter out, and the longer I thought, the stronger became my desire to go on; and at last I decided to do it.

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They insisted upon my staying near the car, and be a little safer under the protection of the Red Cross. They told me how they had to drag an old woman out of her house, who refused to come with79 them, and in her despair shouted nothing but: "Let me die!let me die!"I am not aware that the derivation of our standard measures has been, in an historical way, as the foregoing remarks will indicate, nor is it the purpose here to follow such history. A reader, whose attention is directed to the subject, will find no trouble in tracing the matter from other sources. The present object is to show what a wonderful series of connections can be traced from so simple a tool as a measuring gauge, and how abstruse, in fact, are many apparently simple things, often regarded as not worth a thought beyond their practical application.

"Certainly, sister. Tell her that Bart of Uncle Henry is here." Again I was switched off, but the communication was this time restored after a few moments, and then I heard a joyful and surprised exclamation:"Have they given you back everything?"

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Apr-14 01:13:26