A Treatise of Mechanics, Theoretical, Practical, and Descriptive, Τόμος 2F.C. and J. Rivington, 1815 - 58 σελίδες |
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Συχνά εμφανιζόμενοι όροι και φράσεις
angle axis axle balance barometer barrel beam bottom brass bucket centre centrifugal force circular saw circumference cistern clock cock column common condensation construction contrivance cord crank cylinder degree descend described diameter dilatation distance effect engine epicycloid equal experiments extremity Fahrenheit fastened feet fixed fluid frame friction groove gudgeons heat holes horizontal horse hour hygrometer inches ingenious invention iron length lever lower machine machinery manner means mercury mill motion moveable moving force nearly observed pallet PANTOLOGIA Parcieux passes pendulum piece pinion pipe piston placed planchets plane plate pounds weight pressure pulley pump quantity radius raised rise rollers rope round scapement screw shaft shew side slide specific gravity spindle spiral spirit of wine steam striking surface teeth temperature thermometer tion tooth tube turn upper valve velocity vertical vessel vibrations water-wheel weight wheel
Δημοφιλή αποσπάσματα
Σελίδα 558 - One vessel of water rarefied by fire driveth up forty of cold water ; and a man that tends the work is but to turn two cocks, that, one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
Σελίδα 558 - ... stopping and screwing up the broken end ; as also the touch-hole, and making a constant fire under it ; within twenty-four hours it burst and made a great crack.
Σελίδα 55 - ... (7) The load, at a maximum, that sails of a similar figure and position will overcome, at a given distance from the centre of motion, will be as the cube of the radius.
Σελίδα 288 - Now the distance of the centre of oscillation from the point of suspension...
Σελίδα 558 - I have seen the water run like a constant fountain stream forty foot high : one vessel of water rarefied by fire driveth up forty of cold water. And a man that tends the work is but to turn two cocks, that one vessel of water being consumed another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim between the necessity of turning the said cocks.
Σελίδα 558 - A way that, against several avenues to a fort or castle, one man may charge fifty cannons, playing and stopping when he pleaseth, though out of sight of the cannon. 67- A rare way likewise for musquetoons fastened to the pommel of the saddle, so that a common trooper cannot miss to charge them with twenty or thirty bullets at a time, even in full career.
Σελίδα 55 - The load at the maximum is nearly, but somewhat less than, as the square of the velocity of the wind ; the shape and position of the sails being the same.
Σελίδα 77 - Having thrust under his garter the bowl of a strong tobacco-pipe, his legs being bent, he broke it to pieces by the tendons of his hams, without altering the bending of his leg.
Σελίδα 559 - ... hundred bolts, through fifty staples, two in each, with a direct contrary motion; and as many more from both sides and ends ; and at the self-same time, shall fasten it to the place beyond a man's natural strength to take it away ; and in one and the same turn both locketh and openeth it.
Σελίδα 444 - ... means afforded, ex re nata, and no need of provision beforehand, though much better if foreseen, and means prepared for it, and a premeditated course taken by mutual consent of parties.