The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Zväzok 32M. Salmon, 1840 |
Vyhľadávanie v obsahu knihy
Výsledky 1 - 5 z 93.
Strana 12
... metal , in one piece , and without packing ; it may be formed of hard cast - iron or of cast - steel , and must be finished perfectly true and smooth . Its diameter is to be such that when its tem- perature is raised one hundred degrees ...
... metal , in one piece , and without packing ; it may be formed of hard cast - iron or of cast - steel , and must be finished perfectly true and smooth . Its diameter is to be such that when its tem- perature is raised one hundred degrees ...
Strana 20
... metal , by the cutting - out process ; in the subsequent operations of anneal- ing , hardening , tempering , & c . , the sur- face becomes scaly and discoloured , all which defects are very conveniently re- moved by shaking the pens ...
... metal , by the cutting - out process ; in the subsequent operations of anneal- ing , hardening , tempering , & c . , the sur- face becomes scaly and discoloured , all which defects are very conveniently re- moved by shaking the pens ...
Strana 29
... metal have precisely 29 the same expansibility , Mr. Frodsham pro- poses to have several small pieces , or rings of different lengths , cut from the same tube , as correcting pieces , which are to be slipped on or withdrawn , until the ...
... metal have precisely 29 the same expansibility , Mr. Frodsham pro- poses to have several small pieces , or rings of different lengths , cut from the same tube , as correcting pieces , which are to be slipped on or withdrawn , until the ...
Strana 31
... METAL FOR SHEATHING SHIPS ' BOTTOMS . A few years ago , a patent was 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 ...
... METAL FOR SHEATHING SHIPS ' BOTTOMS . A few years ago , a patent was 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 ...
Strana 36
... as far as possible , practically useful , in calling the attention of scientific minds to the de- partment of science to which it bears for about 12 hours , when the melted metal is 36 STEELE'S DIVING - BELL RECIPROCATING CHAMBER .
... as far as possible , practically useful , in calling the attention of scientific minds to the de- partment of science to which it bears for about 12 hours , when the melted metal is 36 STEELE'S DIVING - BELL RECIPROCATING CHAMBER .
Iné vydania - Zobraziť všetky
Časté výrazy a frázy
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
Populárne pasáže
Strana 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.
Strana 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...
Strana 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.
Strana 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.
Strana 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.
Strana 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.
Strana 187 - I now declare that what I claim as my invention, and wish to secure by letters patent, is the construction and...
Strana 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...
Strana 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...
Strana 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.