Mechanics' Magazine, Volume 32Knight & Lacey, 1840 |
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Page 7
... course exerted , and the force of the steam loosened the packing of the stuffing - boxes ; a segment also of the ring of lead - packing between . the flange of the cylinder , and its cap was blown out . These leakages of steam , and the ...
... course exerted , and the force of the steam loosened the packing of the stuffing - boxes ; a segment also of the ring of lead - packing between . the flange of the cylinder , and its cap was blown out . These leakages of steam , and the ...
Page 8
... course . MODE OF DISCONNECTING PADDLE- WHEELS . Sir , -Perceiving by the Report of Messrs . Pringle and Parkes in ... course turn the screws in the holes in the flange of C , which holes , are of course to be tapped or threaded for the ...
... course . MODE OF DISCONNECTING PADDLE- WHEELS . Sir , -Perceiving by the Report of Messrs . Pringle and Parkes in ... course turn the screws in the holes in the flange of C , which holes , are of course to be tapped or threaded for the ...
Page 10
... course the former required blowing - out cocks to be put to the boilers , and that the water " ( on the voyage from Greenock to London ) was blown out too low by these cocks , " from all which it would appear that the injection ...
... course the former required blowing - out cocks to be put to the boilers , and that the water " ( on the voyage from Greenock to London ) was blown out too low by these cocks , " from all which it would appear that the injection ...
Page 21
... course they were also unfit for magnifiers . Ex- periments of this sort are very expensive when they fail of producing the antici- pated result . The diamond lens , it seems , has only one - ninth of the aber- ration of a glass of equal ...
... course they were also unfit for magnifiers . Ex- periments of this sort are very expensive when they fail of producing the antici- pated result . The diamond lens , it seems , has only one - ninth of the aber- ration of a glass of equal ...
Page 26
... courses , the average weight of each course to be from 10 to 12 tons ; 50 courses are already laid , and the calculation is to have the key - stone in by the 26th of next month . The centre used in constructing this arch is on a new ...
... courses , the average weight of each course to be from 10 to 12 tons ; 50 courses are already laid , and the calculation is to have the key - stone in by the 26th of next month . The centre used in constructing this arch is on a new ...
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Common terms and phrases
acid advantage æther angle apparatus appears applied Argand burner Birmingham boat 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 horse 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 sufficient surface Telford tion trapezium floats treenails tube valve vessel W. A. Robertson weight wheel zinc
Popular passages
Page 461 - 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.
Page 461 - Thou glorious mirror, where the 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.
Page 89 - 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.
Page 90 - Watt did ; and the dates here become very material. It appears that he wrote a letter to Dr. Priestley on 26th 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.
Page 221 - An Act to secure to Proprietors of Designs for articles of Manufacture the Copyright of such Designs for a limited Time.
Page 89 - Mr. Cavendish then burned in the same way dephlogisticated and inflammable airs (oxygen and hydrogen gases) , and the deposit was always more or less acidulous, accordingly as the air burnt with the inflammable air was more or less phlogisticated. The acid was found to be nitrous. Mr. Cavendish states, that " almost the whole of the inflammable and dephlogisticated air is converted into pure water.
Page 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...
Page 55 - I scratched the initials of my name rudely on the plate, taking special care that the cement was quite removed from the scratches, that the copper might be thoroughly exposed. This was put in action in a cylindrical glass vessel, about half filled with a saturated solution of sulphate of copper. I then took a common...
Page 22 - A TREATISE ON A BOX OF INSTRUMENTS, And the Slide Rule ; with the Theory of Trigonometry and Logarithms, including Practical Geometry, Surveying, Measuring of Timber, Cask and Malt Gauging, Heights, and Distances. By THOMAS KENTISH. In one volume. 12mo.
Page 38 - ... along with from one to three per cent, of their weight of carburet of manganese, and exposing the crucible to the proper heat for melting the materials, which are, when fluid, to...