A dictionary of arts, manufactures, and mines, Band 21867 |
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action alcohol alkali alumina ammonia apparatus barrel boiling bottom buddle carbonic acid cent charcoal coal colour compound consists containing copper cotton cwts cylinder deposited diameter diamond dissolved distillation Ditto drawing roller employed enamel engraving evaporation feet fermentation Ferrocyanide fibre fire flax frame furnace glass gold grains ground guano gun cotton gutta percha hackles heat hornblende hydrogen inches iron lever lime liquid machine magnesia manganese manufacture matter means metal mineral mixed mixture motion mould nitric acid obtained operation oxide oxygen pass piece placed plate portion potash pounds pressure produced proportion pulley purpose quantity quartz rollers salt sand screw separated shaft side sieve silica silver slime soda solution specific gravity steam steel stone stuff substances sulphate sulphuric acid surface temperature thick tube vapour vessel washed weight wheel wire wood yellow zinc
Beliebte Passagen
Seite 220 - Judah : and he hath filled him with the Spirit of God, in wisdom, in understanding, and in knowledge, and in all manner of workmanship. And to devise curious works, to work in gold, and in silver, and in brass ; and in cutting of stones to set them, and in carving of wood to make any manner of cunning work...
Seite 167 - JACOBI, at St Petersburg!), has also made a discovery which promises to be of little less importance to the arts. He has found a method — if we understand our informant rightly — of converting any line, however fine, engraved on copper, into a relief, by galvanic process.
Seite 589 - FIRST LAW OF THERMODYNAMICS. Heat and mechanical energy are mutually convertible, and heat requires for its production, and produces by its disappearance, mechanical energy in the proportion of...
Seite 34 - These presses are worked in the Royal Mint by machinery, so contrived that they shall strike, upon an average, sixty blows in a minute ; the blank piece, previously properly prepared and annealed, being placed between the dies by part of the same mechanism. The number of pieces which may be struck by a single die of good steel, properly hardened and duly tempered, not unfrequently amounts at the Mint to between...
Seite 589 - Joule to be the amount of heat required to raise the temperature of one pound of liquid water by one degree of Fahrenheit.
Seite 628 - It consists of a large cast-iron cylinder, fitted with a plunger, from which a loaded weight case is suspended, to give pressure to the water injected by the engine. The load upon the plunger is usually such as to produce a pressure in the cylinder equal to a column of 1500 feet...
Seite 221 - Sparta with a tablet of brass in his hand, on which was inscribed every part of the habitable world, the seas, and the rivers ; and to this he pointed as he spoke of several countries between the Ionian Sea and Susa.
Seite 508 - The deposits of these heavier rocks have been formed on spots which were evidently lower than the level of the surrounding rocks; whilst on those parts which were higher at the time the deposits were formed, the higher trachytic rocks are found. As far as my researches have extended, the more quartzose conglomerates have been invariably found on the erupted rocks, whilst the stratified rocks which they had upheaved were only covered by the trachytic conglomerates. The pebbles of which these conglomerates...
Seite 620 - An hydraulic cement may also be made, which will serve for the manufacture of architectural ornaments, by making a paste of pulverized chalk...
Seite 199 - ... wood, such depressed part will again rise to its original level by subsequent immersion in water. . The wood to be ornamented having first been worked out to its proposed shape, is in a state to receive the drawing of the pattern ; this being put...