What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
acting action amount applied average axle bars bearing blocks boats boiler breadth canal carriages cast cast-iron cause chair coals common comparative consequently considerable construction conveyance conveyed cost cylinders deflection depth descending diameter direction distance ditto drag effect engine equal evaporating expense experiments fastened feet fixed force four friction give given greater half horses improved inches inclination increased iron kind laid latter length Liverpool load locomotive engines Manchester means miles an hour mode motion moving nearly necessary passengers passing performance piston placed plane Plate practice present pressure produce quantity railroad rails railway rate of speed resistance rest result road roll rope round shew shewn side similar springs square steam stone sufficient suppose surface Table taken tons train travelling tube velocity waggons weight wheels whole yard
Page 7 - The manner of the carriage is by laying rails of timber, from the colliery, down to the river, exactly straight and parallel ; and bulky carts are made with four rowlets fitting these rails ; whereby the carriage is so easy that one horse will draw down four or five chaldron of coals, and is an immense benefit to the coal merchants.
Page 274 - My attention was first directed in the year 1759 to the " subject of steam-engines, by the late Dr. Robison, then a " student in the University of Glasgow, and nearly of my " own age. He at that time threw out an idea of applying " the power of the steam-engine to the moving of wheel" carriages, and to other purposes, but the scheme was not " matured, and was soon abandoned on his going abroad.
Page 305 - ... water in the boiler shall be cold, and there shall be no fuel in the fire-place. As much fuel shall be weighed, and as much water shall be measured and delivered into the...
Page 306 - The time of performing every trip shall be accurately noted, as well as the time occupied in getting ready to set out on the second journey. Should the engine not be enabled to take along with it sufficient fuel and water for the journey of ten trips, the time occupied in taking in a fresh supply of fuel and water shall be considered and taken as a part of the time in performing the journey. JU Rastrick, Esq., Stourbridge, CE Nicholas Wood, Esq., Killingworth, CE John Kennedy, Esq., Manchester. Liverpool,...
Page 7 - As the art to boore with, iron rodds to try the deepnesse and thicknesse of the Coale ; rare engines to draw water out of the Pits : Waggons with one horse to carry down Coales, from the Pits, to the Stathes, to the River, &c. Within few years, he consumed all his money, and rode home upon his light horse.
Page 304 - ... 6. There must be a mercurial gauge affixed to the machine, with index rod, showing the steam pressure above fortyfive pounds per square inch. 7. The engine to be delivered complete for trial at the Liverpool end of the railway, not later than the first of October next.
Page 508 - Rocket," was 25 times that of the "Novelty;" from which we may imagine the degree of compression necessary to force the same quantity of air through the fire: though we do not say, that to raise an equal quantity of steam, an equal quantity of air, in that highly compressed state, is necessary. It was much to be regretted, that the experiment with the "Novelty...
Page 281 - The cylinder, A, was placed on one side of the boiler ; the piston rod projected out behind, horizontally, and was attached to the leg, ab, at a, and to the reciprocating lever, ac, which is fixed at c. At the lower extremity of the leg, ab, feet were attached, by a joint, at b.
Page 6 - Master Beaumont, a gentleman of great ingenuity, and rare parts, adventured into our mines with his thirty thousand pounds ; who brought with him many rare engines...
Page 282 - ... 1, 2, 3 ; the sliding rack, acting on the toothed wheel, causes the other sliding rod to move in the contrary direction, and with it the leg d e. Whenever, therefore, the piston is at the extremity of the stroke, and one of the legs is no longer of use to propel the engine forward, the other, immediately on the motion of the piston being changed, is ready, in its turn, to act as a fulcrum or abutment for the action of the moving power, to secure the continual progressive motion of the engine.