The Mechanic's Magazine, Museum, Register, Journal and Gazette, Band 36Robertson, 1842 |
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Seite 2
... ment where a number of workmen are employed amongst timber , shavings , linen , tow , oils , and where various ar- ticles of a combustible nature are used . To prevent an accident by fire , I have established several precautions . One ...
... ment where a number of workmen are employed amongst timber , shavings , linen , tow , oils , and where various ar- ticles of a combustible nature are used . To prevent an accident by fire , I have established several precautions . One ...
Seite 8
... ment of animal life tends to promote the circulation of the universe . Heat and cold are , as every one knows , sensations ; but they are sensations caused by differ- ent dispositions of matter , as we may see by their effects on ...
... ment of animal life tends to promote the circulation of the universe . Heat and cold are , as every one knows , sensations ; but they are sensations caused by differ- ent dispositions of matter , as we may see by their effects on ...
Seite 9
... ment was attracted to the importance of establishing a mail communication by steam with the British Possessions in America ; and it is understood that the Great Western Steam Ship Company offered for the contract , on terms very ...
... ment was attracted to the importance of establishing a mail communication by steam with the British Possessions in America ; and it is understood that the Great Western Steam Ship Company offered for the contract , on terms very ...
Seite 10
... ment , a premium of 15,000l . a year was ab- solutely given for the building of vessels to oppose them , and as this , it appears , was not enough , a sop of 20,000l . a year has since been added to keep up the spirit of the thing . We ...
... ment , a premium of 15,000l . a year was ab- solutely given for the building of vessels to oppose them , and as this , it appears , was not enough , a sop of 20,000l . a year has since been added to keep up the spirit of the thing . We ...
Seite 28
... ment Office , December 10 , 1841 . The first of these improvements is applied to the roving machine , commonly known as the bobbin and fly frame , generally employed for producing the finer rovings , and is de- signed to obviate the ...
... ment Office , December 10 , 1841 . The first of these improvements is applied to the roving machine , commonly known as the bobbin and fly frame , generally employed for producing the finer rovings , and is de- signed to obviate the ...
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acid action ammonia anthracite apparatus application axle Birmingham blast boat boiler Bude Light carbonic carbonic acid carriages cause centre chimney coal coal gas coke gas combustion communication condenser construction copper crank cylinder described diameter disc effect employed engine equal experiments February 25 feet fire flame flues Forest of Dean fuel furnace Galignani gases heat hour improvements inches invention iron J. C. Robertson kyanized length lever Liverpool London machine machinery Magazine manufacture March March 21 matter means Mechanics ment Messrs metal miles per hour mode motion obtained pass pipe piston plate practical present pressure produced propeller Published by J. C. pump purpose quantity rails railway RECENT ENGLISH PATENTS render screw shaft side six months smoke steam steam-engine stroke supply surface tain temperature timber tion trenails tube valve velocity vessel weight wheels wire wood zinc
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Seite 508 - ... mines ; or it may perhaps extend also to a new process, to be carried on by known implements or elements, acting upon known substances, and ultimately producing some other known substance ; but producing it in a cheaper or more expeditious manner, or of a better and more useful kind. But no merely philosophical, or abstract principle, can answer to the word
Seite 15 - American forests, which evidently far exceeded that size, and which my situation, as a passenger in a public conveyance, prevented me from measuring. M. Michaux, who has written on the forest trees of America, in speaking of their great size, states, that on a small island in the Ohio, fifteen miles above the river Muskingum, there was a button-wood tree, which, at five feet from the ground, measured 40 feet 4 inches in circumference. He mentions having met with a tree of the same species on the...
Seite 405 - Ib. of the former to 2 gallons of the latter, the clear solution is then poured off into the reservoir where water is added till it is diluted to the proper point, which may be ascertained by a hydrometer ; a more perfect test is the action of the solution upon silver, which it turns brown at the requisite degree of saturation. The operations of exhaustion and pressure employ eight men for five hours, the whole process occupying about seven hours, during which time from 17 to 20 loads are kyanized...
Seite 412 - The water when admitted to the reservoir rises to a certain level, exercising a hydrostatic pressure proportional to the height of the column, and on the sluice being raised it escapes with a corresponding velocity in the direction of the tangent to the last element of the guide curves, which is a tangent to the first element of the curved buckets; the water pressing without shock upon the buckets at every point of the inner periphery, causes the wheel to revolve, then passes along the buckets, and...
Seite 270 - Finsbury, engineer, for certain improvements in machinery or apparatus for splitting and shaping wood into splints for the manufacture of matches, and other similar forms.
Seite 509 - Daniel's patent was taken out for improvements in dressing woollen cloth, where the invention consisted in immersing a roll of cloth, manufactured in the usual manner, into hot water.
Seite 368 - So awful is the spectacle of a storm at sea, that it is generally viewed through a medium which biases the judgment; and, lofty as waves really are, imagination makes them loftier still.
Seite 271 - Lancaster, Consulting Chemist, for certain improvements in dressing, stiffening, and finishing cotton and other fibrous substances, and textile and other fabrics, part or parts of which improvements are applicable to the manufacture of paper, and also to some of the processes or operations connected with printing calicoes and other goods.
Seite 509 - I will show you how the judges have heretofore allowed of monopoly patents, which is, that where any man by his own charge and industry or by his own wit or invention doth bring any new trade into the realm, or any engine tending to the furtherance of a trade that never was used before — and that for the good of the realm...
Seite 298 - The Ulster Canal, which is described in this communication, was designed for the purpose of facilitating the intercourse between the west and the north of Ireland. It commences at the southern extremity of Lough Erne, in the county of Fermanagh, whence it extends for a length of 46 miles, and enters the river Blackwater, near the village of Charlemont, in the county of Armagh, from which there is an outlet through Lough Neagh to the ports of Newry and Belfast. The total cost of this work will amount...