Mechanics Magazine, Volum 4Knight & Lacey, 1825 |
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Resultat 1-5 av 46
Side 3
... screws and sockets at the ends ; the uppermost one having a cross - head or handle to it , for the convenience of the workman . These rods are of considerable weight , and this weight , when they have bored a few yards down , is the ...
... screws and sockets at the ends ; the uppermost one having a cross - head or handle to it , for the convenience of the workman . These rods are of considerable weight , and this weight , when they have bored a few yards down , is the ...
Side 6
... screw be used , of one- sixteenth thread , and an inch in diame- 1 ter , put into effect by a crow or handle 12 inches in length , with a force of 50 pounds , then will the amazing pressure of 60318,72 pounds be sustained by every ...
... screw be used , of one- sixteenth thread , and an inch in diame- 1 ter , put into effect by a crow or handle 12 inches in length , with a force of 50 pounds , then will the amazing pressure of 60318,72 pounds be sustained by every ...
Side 8
... screw the boards together in several places , to give them firmness . When this floor is finished , the joints will be good , and remain so , whatever temperature they may be ex- posed to . They will have another ad- vantage over the ...
... screw the boards together in several places , to give them firmness . When this floor is finished , the joints will be good , and remain so , whatever temperature they may be ex- posed to . They will have another ad- vantage over the ...
Side 13
... screws 55 , till the aperture is adjusted , when the ends of the screws may be cut off . ABCD , empty of gas , the mercury in Now , suppose the cubical vessel , the tube is alike high at both surfaces . SPIRAL WHEELS PROPOSED IN STEAM ...
... screws 55 , till the aperture is adjusted , when the ends of the screws may be cut off . ABCD , empty of gas , the mercury in Now , suppose the cubical vessel , the tube is alike high at both surfaces . SPIRAL WHEELS PROPOSED IN STEAM ...
Side 14
... screw , to be formed by a flat board or ledge wound spirally round an axle , just like the screw of Archimedes , with- out its external rim : one of these on each side of the vessel , placed with their axles longitudinally , at any ...
... screw , to be formed by a flat board or ledge wound spirally round an axle , just like the screw of Archimedes , with- out its external rim : one of these on each side of the vessel , placed with their axles longitudinally , at any ...
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Alnwick angle answer apparatus appears applied barrel body boiler bottom BROWN'S GAS calculated carriage centre chro chronometer circle construction Corre Correspondent crank cylinder diameter Ditto draw effect engine equal feet figure fire force frustrum girt give half heat hematite hole horse improvement inches inquiry insertion Institution invention iron John Gast labour late length less London machine Magazine manufacturer means measure Mecha Mechanics ment metal method motion naval architecture nerally obedient servant object observed organzine parallelogram pass PERPETUAL MOTION persons piece pipe piston pounds present pressure principle produce pump purpose quantity quired readers Robert Seppings round rule screw ship shipwrights side SIR,-In SLIDING RULE specific gravity spect square steam suppose surface thickness thing tion tube valve vessel weight wheel whole workmen
Populære avsnitt
Side 73 - Tis thus Omnipotence his law fulfils, And vengeance executes what justice wills. Again— the band of commerce was designed To associate all the branches of mankind ; And if a boundless plenty be the robe, Trade is the golden girdle of the globe.
Side 36 - Tis hard to say if greater want of skill Appear in writing or in judging ill ; But of the two less dangerous is th' offence To tire our patience than mislead our sense : Some few in that, but numbers err in this; Ten censure wrong for one who writes amiss ; A fool might once himself alone expose ; Now one in verse makes many more in prose.
Side 379 - The straight line drawn at right angles to the diameter of a circle, from the extremity of it, falls without the circle...
Side 198 - Never, perhaps, was witnessed a finer scene than on the deck of my little ship, when all hope of life had left us. Noble as the character of the British sailor is always allowed to be in cases of danger, yet I did not believe it to be possible that amongst forty-one persons not one repining word should have been uttered.
Side 185 - Imprints a different bias, and to each Decrees its province in the common toil. To some she taught the fabric of the sphere, The changeful Moon, the circuit of the stars, The golden zones of Heaven ; to some she gave To weigh the moment of eternal things, Of time, and space, and Fate's unbroken chain, And will's quick impulse : others by the hand She led o'er vales and mountains, to explore What healing virtue swells the tender veins Of herbs and flowers; or what the beams of morn Draw forth, distilling...
Side 379 - ... line which is at right angles to it, as not to cut the circle. Let ABC be a circle, the centre of which is D, and the diameter AB ; the straight line drawn at right angles to AB from its extremity A, shall fall without the circle.
Side 379 - Again, between the straight line AE and the circumference, no straight line can be drawn from the point A, which does not cut the circle. Let AG...
Side 363 - What is a man, If his chief good and market of his time Be but to sleep and feed ? a beast, no more. Sure, he that made us with such large discourse, Looking before and after, gave us not That capability and god-like reason To fust in us unused.
Side 132 - Silhet, the nuts of the semecarpos anacardium, and the berries of the holigarna longifolia, having been steeped for a month in clear water, are cut transversely, and pressed in a mill. The expressed juice of each is kept for several months, taking off the scum from time to time. Afterwards the liquor is decanted, and two parts of the one are added to one of the other, to be used as varnish.
Side 385 - These clutches are simultaneously acted upon by the rods and small lever b, with the helical springs mm, and which, according as they are forced to the right or left, will enable the carriage to be moved forward or backward. To the fore naves are fixed two cylindrical metal rings, round which are two...