A Manual of the Steam EngineScott, Webster and Geary, 1842 - 293 էջ |
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Common terms and phrases
action air-pump amount apparatus axis axle beam blast pipe boiler boiling carriages chimney coal cock cold water combustion common condenser connecting-rod construction contrivance crank cubic foot cylinder descending described diameter double acting double acting engine eccentric effect elastic force employed evaporating expansion feet flues fly-wheel following figure force of steam fuel fusible plug Hall's heat horse power inches of mercury increased injection engines iron latent heat lever Liverpool load locomotive engine machinery marine engine means mechanical mercury metallic miles an hour miles per hour mode motion moving power paddle wheel passage patent engines pipe piston piston-rod placed plate pounds produced propelled proportion pump rails railway raised represented resistance safety valve salt screw Single Acting Engine slide speed square inch steam engine steam tube steam vessels steam-tight STEPHENSON'S ROCKET stroke supply surface temperature tion tons Tredgold upper vacuum velocity vertical Watt Watt's weight
Սիրված հատվածներ
Էջ 22 - 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.
Էջ 38 - Fourthly, I intend, in many cases, to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common fire engines.
Էջ 32 - A Description and Draught of a new-invented Machine, for carrying Vessels or Ships out of, or into, any Harbour, Port, or River, against Wind and Tide, or in a calm.
Էջ 37 - ... it in a case of wood, or any other materials that transmit heat slowly; secondly, by surrounding it with steam or other heated...
Էջ 37 - ... until it had established an equilibrium ; and if that vessel were kept very cool by an injection or otherwise, more steam would continue to enter until the whole was condensed.
Էջ 37 - ... first, that vessel in which the powers of steam are to be employed to work the engine, which is called the cylinder...
Էջ 38 - Secondly, in Engines that are to be worked wholly or partially by condensation of steam, the steam is to be condensed in vessels distinct from the...
Էջ 49 - ... ascent,) I proposed to employ two engines, acting upon two cranks fixed on the same axis, at an angle of 120° to one another, and a weight placed upon the circumference of the flywheel at the same angle to each of the cranks, by which means the motion might be rendered nearly equal, and only a very light fly-wheel would be requisite.
Էջ 149 - ... within cylinders, into which the steam or water of the boiler is allowed to enter, in order to press upon such pistons ; and which pistons are, by the intervention of certain levers and connecting rods, or by any other effective contrivance, made to bear upon the axles of the wheels of the carriage, upon which the engine rests.
Էջ 138 - ... new, at least, in the application of its might — which walks the water, like a giant rejoicing in his course; stemming alike the tempest and the tide; accelerating intercourse, shortening distances; creating, as it were, unexpected neighbourhoods, and new combinations of social and commercial relation; and giving to the fickleness of winds and the faithlessness of waves the certainty and steadiness of a highway upon the land?