The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volumen 32M. Salmon, 1840 |
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Página 13
... obtained by the particular proportion of its parts , without any greater complexity of construction than in the ordinary whole stroke valve . " We have made large extracts from the spe- cification of this patent , because there are some ...
... obtained by the particular proportion of its parts , without any greater complexity of construction than in the ordinary whole stroke valve . " We have made large extracts from the spe- cification of this patent , because there are some ...
Página 14
... obtained letters patent of the United States . The beets are to be taken out of the ground as soon as they are ... obtain the sugar from the beets immediately , they may be subjected to the freezing process only , then thawed , and ...
... obtained letters patent of the United States . The beets are to be taken out of the ground as soon as they are ... obtain the sugar from the beets immediately , they may be subjected to the freezing process only , then thawed , and ...
Página 20
... obtained the paper whereon to write this communica- tion , nor the little steel instrument with which it is penned ... obtaining the same beneficial results in a more simple man- ner . In the accompanying drawing A A re- presents a cast ...
... obtained the paper whereon to write this communica- tion , nor the little steel instrument with which it is penned ... obtaining the same beneficial results in a more simple man- ner . In the accompanying drawing A A re- presents a cast ...
Página 21
... obtained ; the cylinder slides upon the bar C , and may be set nearer to , or father from the crank at pleasure . The attachment of the pen- dulous support is also variable . The motion thus obtained has been found to be exceedingly ...
... obtained ; the cylinder slides upon the bar C , and may be set nearer to , or father from the crank at pleasure . The attachment of the pen- dulous support is also variable . The motion thus obtained has been found to be exceedingly ...
Página 31
... obtained for a metal wherewith to cover the bottoms of vessels , and which promised all the ad- vantages of copper , with at least equal durability in any climate , and a considerable saving in cost . It is manufactured in sheets in the ...
... obtained for a metal wherewith to cover the bottoms of vessels , and which promised all the ad- vantages of copper , with at least equal durability in any climate , and a considerable saving in cost . It is manufactured in sheets in the ...
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Términos y frases comunes
acid action advantage æther angle apparatus appears applied Argand burner boiler braces bridge Bude light burner canal carbonic acid carriage cast iron cause centre Charles Blagden chemical affinity Clovis coal common conductors construction copper cylinder diameter diving bell effect Ellesmere Canal employed engine engraving equal experiments feet fire flame fluid Galignani glass heat horses improvements inches invention iron John Robison length letter light Liverpool London machine machinery Magazine manufacture mastic means Mechanics ment Messrs metal miles mode motion object observed obtained operation paddle paddle-wheel paper passing patent piece pipe piston plate present pressure principle produced propelling pulley purpose quantity Railway ratus rectangular floats render rope screw shaft ship side six months steam steam-engine stove stroke sufficient surface Telford tion trapezium floats treenails tube valve vessel W. A. Robertson weight wheel zinc
Pasajes populares
Página 453 - Almighty's form Glasses itself in tempests; in all time, Calm or convulsed, in breeze, or gale, or storm, Icing the pole, or in the torrid clime Dark-heaving; boundless, endless, and sublime, The image of Eternity, the throne Of the invisible,— even from out thy slime The monsters of the deep are made; each zone Obeys thee; thou goest forth, dread, fathomless, alone.
Página 31 - The metal is a combination of copper and zinc, the best admixture being found to be 60 per cent, of the former and 40 per cent of the latter. The...
Página 90 - April, 1783, in which he reasons on the experiment of burning the two gases in a close vessel, and draws the conclusion, " that water is composed of dephlogisticated air and phlogiston, deprived of part of their latent heat."* The letter was received by Dr.
Página 89 - about one-fifth of the common air, and nearly all the inflammable air, lose their elasticity, and are condensed into the dew which lines the glass.
Página 89 - Priestley's 5th volume,* gave rise to this inquiry, at least in England ; Mr. Cavendish expressly refers to it, as having set him upon making his experiments. — (Phil. Trans. 1784, p. 126.) The experiment of Mr. Warltire consisted in firing, by electricity, a mixture of inflammable and common air in a close vessel, and two things were said to be observed : first, a sensible loss of weight ; second, a.
Página 584 - ... fixed in a bottle, and the quantity of rain caught is ascertained by multiplying the weight in ounces by 173, which gives the depth in inches and parts of an inch.
Página 187 - I now declare that what I claim as my invention, and wish to secure by letters patent, is the construction and...
Página 89 - Priestley's 5th volume. Mr. Cavendish himself could find no loss of weight, and he says that Dr. Priestley had also tried the experiment, and found none. But Mr. Cavendish found there was always a dewy deposit, without any sooty matter. The result of many trials was, that common air and inflammable air being...
Página 91 - Cavendish leaves it uncertain, whether or not he meant by phlogiston simply inflammable air, and he inclines rather to call inflammable air, water united to phlogiston. Mr. Watt says expressly, even in his later paper (of November 1783), and in a passage not to be found in the letter of April 1783, that he thinks that inflammable air contains a small quantity of water, and much elementary heat. It must be admitted that such expressions as these on the part of both of those great men, betoken a certain...
Página 89 - Lavoisier, as well as of the conclusion drawn from them, that dephlogisticated air is only water deprived of its phlogiston; but, at that time, so far was M. Lavoisier from thinking any such opinion warranted, that till he was prevailed upon to repeat the experiment himself, he found some difficulty in believing that nearly the whole of the two airs could be converted into water.