The Mechanics' Magazine, Museum, Register, Journal, and Gazette, 43. kötetM. Salmon, 1845 |
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12. oldal
... boiler explosions . It would seem from these experiments , in tempering metals , that if the metal be too much heated , the effect of plunging it into water will be di- minished . In steam - boilers also , if the water be introduced ...
... boiler explosions . It would seem from these experiments , in tempering metals , that if the metal be too much heated , the effect of plunging it into water will be di- minished . In steam - boilers also , if the water be introduced ...
13. oldal
... BOILERS . 13 vessel , which may be of sheet iron , fire- brick , or stone , according to the corrosive or non - corrosive nature of the substances em- ployed therein . In this vessel is placed a continuous screw , made of suitable ...
... BOILERS . 13 vessel , which may be of sheet iron , fire- brick , or stone , according to the corrosive or non - corrosive nature of the substances em- ployed therein . In this vessel is placed a continuous screw , made of suitable ...
15. oldal
DR . RITTERBANDT'S METHOD OF PREVENTING INCRUSTATIONS IN BOILERS . 15 of Dr. Ritterbandt's new process for pre ... BOILERS . We are glad to observe from the follow- ing account , given in the Morning Herald , of a lecture delivered ...
DR . RITTERBANDT'S METHOD OF PREVENTING INCRUSTATIONS IN BOILERS . 15 of Dr. Ritterbandt's new process for pre ... BOILERS . We are glad to observe from the follow- ing account , given in the Morning Herald , of a lecture delivered ...
16. oldal
... boilers , and after speaking of its being a cause of increased expenditure of fuel , he proved that as it was a non - conductor of heat , the boiler thus coated would become burnt as if empty , and thus in time be so weakened as to give ...
... boilers , and after speaking of its being a cause of increased expenditure of fuel , he proved that as it was a non - conductor of heat , the boiler thus coated would become burnt as if empty , and thus in time be so weakened as to give ...
19. oldal
... BOILERS . 66 With regard to the long range which the unreflecting have associated with the long bow , there is nothing very dif- ficult to effect , except to hit the mark . To send a cannon ball or shell far enough only requires powder ...
... BOILERS . 66 With regard to the long range which the unreflecting have associated with the long bow , there is nothing very dif- ficult to effect , except to hit the mark . To send a cannon ball or shell far enough only requires powder ...
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acid angle apparatus application atmospheric railways boilers bottom Braidwood Captain carriage centre circle civil engineer claim Claviole coal condenser construction copper cylinder described diameter distance effect employed engine equal expense experiments fire frustrum fuel furnace Galignani given heat hour improvements inches increased invention iron July knots length less light Liverpool locomotive London LONDON FIRE BRIGADE machine machinery Magazine manufacture means Mechanics ment Messrs metal meter method miles miles per hour minute mode motion obtained organzine paddles paper pass patent pipe piston plane plates present pressure principle produced pump purpose quantity rail render sails Samuel Bentham SCREW PROPELLING shaft ship side six months solution speed square steam steamers stocking frame stroke sulphuric acid surface tain tion Tofield tons train Trinity House tube tunnel vacuum vessels valve velocity wheel wind
Népszerű szakaszok
339. oldal - ... shut up, intercourse suspended, the sick abandoned, mothers weeping in terror over their children. The Stoic assures the dismayed population that there is nothing bad in the small-pox, and that to a wise man disease, deformity, death, the loss of friends, are not evils. The Baconian takes out a lancet and begins to vaccinate.
339. oldal - The Baconian constructs a diving-bell, goes down in it, and returns with the most precious effects from the wreck. It would be easy to multiply illustrations of the difference between the philosophy of thorns and the philosophy of fruit, the philosophy of words and the philosophy of works.
336. oldal - Then after divers meetings and consults of our whole number, to consider of the former labours and collections, we have three that take care, out of them, to direct new experiments, of a higher light, more penetrating into nature than the former. These we call lamps..
339. oldal - What then was the end which Bacon proposed to himself? It was, to use his own emphatic expression, " fruit." It was the multiplying of human enjoyments and the mitigating of human sufferings. It was
336. oldal - We have also engine-houses, where are prepared engines and instruments for all sorts of motions. There we imitate and practise to make swifter motions than any you have, either out of your muskets or any engine that you have...
336. oldal - We have three that try new experiments. Such as themselves think good. These we call pioneers or miners. We have three that draw the experiments of the former four into titles and tables, to give the better light for the drawing of observations and axioms out of them. These we call compilers.
337. oldal - And this we do also: we have consultations, which of the inventions and experiences which we have discovered shall be published, and which not: and take all an oath of secrecy for the concealing of those which we think fit to keep secret: though some of those we do reveal sometimes to the State, and some not.
114. oldal - The surface of a sphere is equal to the convex surface of the circumscribing cylinder ; and the solidity of the sphere is two thirds the solidity of the circumscribing cylinder.
309. oldal - ... whole being constructed, arranged, and combined, in the manner and for the purpose herein set forth.
66. oldal - ... weight when their shafts were uniform ; and that columns tapering from the bottom to the top were only capable of bearing weights due to the smallest part of their section, though the larger end might serve to prevent lateral thrusts. This last remark applies, too, to the Egyptian columns, the strength of the column being only that of the smallest part of the section. From the two series of experiments, it appeared that the strength of the short column is nearly in proportion to the area of the...