The Mechanic's Magazine, Museum, Register, Journal and Gazette, Band 33Robertson, 1840 |
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Häufige Begriffe und Wortgruppen
angle apparatus appears applied Archimedes atmosphere ATMOSPHERIC RAILWAY August August 27 barometer boat boiler British Queen carriage cause common connecting rod construction crank cylinder diameter effect ELECTRIC TELEGRAPH employed equal experiments feet fire fluid friction gamboge gauge glass greater Hall's condensers HALL'S SYSTEM improvements inches inches of mercury injection invention iron J. C. Robertson July July 18 June latent heat length letter lever London machine machinery manufacture means Mechanics ment Messrs metal miles mode motion observed obtained Oldham paddle-wheels paper pass patent pipes piston placed present pressure principle produced propelling prove Published by J. C. pump purpose quantity railway render sailing Scalpel screw SCREW PROPELLER shaft short stroke side six months speed steam navigation steam-engine steamers stroke engine surface surface condensation suspension bridges SYSTEM OF CONDENSATION telegraph temperature tion tube vacuum valve velocity vessel Watt weight wheels wort
Beliebte Passagen
Seite 202 - Pendulum vibrating Seconds of Mean Time in the Latitude of London in a Vacuum at the Level of the Sea is in the proportion of Thirty-Six Inches to Thirty-Nine Inches and one thousand three hundred and ninety-three ten-thousandth Parts of an Inch...
Seite 4 - ... density that causes sound to pass rapidly through them. "Other things remaining the same, an augmentation of density always produces a diminution of velocity.
Seite 420 - I have no hesitation in giving it as my opinion that the vicinity of land to the northward will always be in our favour.
Seite 372 - I now saw my former observations realized; but whether the deposition so formed would retain its hold on the plate, and whether it would be of sufficient solidity or strength to bear working if applied to a useful purpose, became questions which I now determined to solve by experiment.
Seite 215 - It is most commonly, yet not always, entirely under water ; but its inhabitant has filled it with air for her respiration, which enables her to live in it. She conveys the air to it in the following manner : she usually swims upon her back, when her abdomen is enveloped in a bubble of air, and appears like a globe of quicksilver; with this she enters her cocoon, and displacing an equal mass of water, again ascends for a second lading, till she has sufficiently filled her house with it, so as to expel...
Seite 461 - What we claim as our invention, and desire to secure...
Seite 223 - Europe, with regard to trade, before the passage to the East Indies by the Cape of Good Hope and America was discovered.
Seite 155 - The consequence is, being of no party, I shall offend all parties : — never mind ! | My words, at least, are more sincere and hearty Than if I sought to sail before the wind. He who has nought to gain can have small art : he Who neither wishes to be bound or bind, May still expatiate freely, as will I, Nor give my voice to slavery's jackall cry.
Seite 13 - ... split at the points. They are shaped chiefly by means of rasps and scrapers of various forms, after having been roughed out by a hatchet or saw: the teeth are cut by a double saw fixed in a back, the two blades being set to different depths, so that the first cuts the tooth only...
Seite 131 - By AF Hemming. New This instrument, designed for ascertaining the relative heights of Ley T" 'C points not visible from each other, consists of lengths of water-tight flexible tubing, attached to each other by brass joints, and having glass vessels at each end. The vessels and tubing being nearly filled with water, the level of the water, as seen in these vessels at two points whose relative heights are to be compared, will serve to indicate their positions, whatever may be the inflexions of the...