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12 feet 12 inches 20 feet 9 inches abutments acid afterwards angle aqueduct arches banks basin bottom breadth brick bridge built caissoon canal carbonic acid carried cast-iron centre chains clay cofferdams commenced considerable constructed contained course depth distance drains engineer entrance erected ERIDGE feet 6 inches feet 9 feet in height feet in length feet in width feet span feet wide formed foundations frigidarium gates granite ground harbour high water horizontal inches square inches thick inclined inclined plane iron John Smeaton laid land lime limestone locks low water lower masonry miles in length mortar navigation pass passage perpendicular piers piles pipes placed platform port portion quantity rise river road rock Roman rows ruling gradients sand sandstone side sluice soffite spandrills specific gravity spring tides stone Strabo surface timber tons town tunnel upper vessels Vitruvius vomitories voussoirs walls wheel whole yards
Page 582 - I have taken a piece of a whole cannon, whereof the end was burst, and filled it three quarters full of water, 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 ; so that having a way to make my vessels, so that they are strengthened by the force within them, and the one to fill after the other, I have seen the water run like a constant fountain stream, forty feet high ; one vessel of water,...
Page 534 - and C. shall be Three, to be our Justices, to survey the ' said Walls, Streams, Ditches, Banks, Gutters, Sewers, ' Gotes, Calcies, Bridges, Trenches, Mills, Mill-dams, ' Flood-gates, Ponds, Locks, Hebbing- wears, and other Im...
Page ix - A society for the general advancement of Mechanical Science, and more particularly for promoting the acquisition of that species of knowledge which constitutes the profession of a Civil Engineer, being the art of directing the great sources of power in Nature for the use and convenience of man...
Page 582 - I have seen the water run like a constant fountain stream forty feet 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 re-fill with cold water, and so successively, the fire being tended and kept constant, which the self-same person may likewise abundantly perform in the interim between the necessity of turning the said cocks.
Page 552 - ... ounces of carbonic acid, would form a solution not sensibly different, in ordinary use, from the filtered water of the Thames, in the average state of that river.
Page 76 - Powers, are certain simple instruments, commonly employed for raising greater weights, or overcoming greater resistances, than could be effected by the natural strength without them. These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
Page 540 - ... full of black troops of unclean spirits, which crept in under the door, as also at chinks and holes, and coming in, both out of the sky and from the earth, filled the air as it were with dark clouds.
Page 583 - 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.
Page 544 - The depth of the trench," he adds, "in some places descended full thirty feet, if not more, whereas in other places it required a sprightful art again to mount it over a valley in a trough, between a couple of hills, and the trough all the while borne up by wooden arches, some of them fixed in the ground very deep, and rising in height above twenty-three feet.