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aceident artiele axis bobbin bottom caleined caleulated called camphor candles caoutehouc capstan carbonic aeid cards cast centre chareoal chicory chimney chlorine coal cobalt coffee colour combustion containing copper cotton covered cylinder deseribed diameter diamond drawing rollers edge eireular elay elean elear elose eloth eross erystals eseape feet fire fixed foree frame furnace glass heat holes inches inelined inereased iron layer length lever liquid machine manufacture means metal motion mould operation oxide oxygen passing pattern piece placed plates polished portion potash pound powder pressure prineipal produced quantity removed roasted roller beam rollers round roving sand seoria serew shaft side silica slag smalt solid solution speculum speculum metal spindle stretehed substance suffieient sulphuret sulphuric aeid surface temperature thick thin thread tons tube turned twist upper vapour veloeity vessel weight wheel wire wood yarn
الصفحة 290 - It would be needless to add that the largest and longest are best. Decayed labourers, women, and children, make it their business to procure and prepare them. As soon as they are cut they must be flung into water, and kept there ; for otherwise they will dry and shrink, and the peel will not run.
الصفحة 395 - ... to do it for them. They have nothing else to do, but as their office must be performed from the repassing of the first to the passing of the last corve during the day, they are in the pit the whole time it is worked, frequently above twelve hours a day.
الصفحة 395 - ... which it does of its own weight. If anything impedes the shutting of the door they remove it, or, if unable to do so, run to the nearest man to get him to do it for them. They have nothing else to do; but, as their office must be performed from the repassing of the first to the passing of the last corve during the day, they are in the pit the whole time it is worked, frequently above 12 hours a day.
الصفحة 407 - ... breast-board, so placed as to prevent the passage of whole berries between itself and the roller. The pulp is then separated from the seeds by washing them, and the latter are spread out in the sun to dry them.
الصفحة 365 - ... each side of the frame. This plate is just so large as to fill the whole space, and shut the chimney entirely when thrust quite in, which is convenient when there is no fire. Drawing it out, so as to leave a space between...
الصفحة 407 - In curing coffee it is sometimes usual to expose the berries to the sun's rays in layers, five or six inches deep, on a platform. By this means the pulp ferments in a few days, and having thus thrown off a strong acidulous moisture, dries gradually during about three weeks : the husks are afterwards separated from the seeds in a mill. Other planters remove the pulp from the seeds as soon as the berries are gathered. The...
الصفحة 281 - European cloth-printing, although the methods employed are numerous, and the combinations of colours and shades of colour almost infinite, yet each colour in a pattern must, in the present state of the art, be applied by one of six different styles of work. These are termed — 1. the madder style ; 2. printing by steam ; 3. the paddling style ; 4.
الصفحة 366 - I went out and looked up at the top of the chimney ; its funnel was joined in the same stack with others, some of them shorter, that drew very well, and I saw nothing to prevent its doing the same. In fine, after every other examination I could think of, I was obliged to own the insufficiency of my skill. But my friend, who made no pretension to such kind of knowledge, afterwards discovered the cause himself.
الصفحة 398 - ... high, so on to the third and fourth ladders till she reaches the pit-bottom, where she casts her load, varying from 1 cwt. to 1 £ cwt. into the tub. This one journey is designated a rake; the height ascended, and the distance along the roads added together, exceed the height of St Paul's Cathedral; and it not unfrequently happens that the tugs break, and the load falls upon those females who are following.
الصفحة 341 - A piece of gutta percha, free from blemish, and the size of the plate required, is placed in boiling water. When thoroughly softened it is taken out and laid flat upon a smooth metal plate and immediately dusted over with the finest bronze powder used for printing gold letters. The object of this is threefold — to dry the surface, to render the surface more smooth, and to prevent adhesion. The plant is then to be neatly laid out upon the bronze surface and covered with a polished metal plate either...