The Pictorial handbook of London : comprising its antiquities, architecture, arts, manufacture, trade, social, literary, and scientific institutions, exhibitions, and galleries of art : together with some account of the principal suburbs and most attractive localities ; illustrated with two hundred and five engravings on wood, by Branston, Jewitt, and others and a new and complete map, engraved by Lowry . l israised and let fall. The ball itself, 5 ft. in diameter, is a frame of wood, covered with leather,and is perforated, to admit of its passage freely up and down the supportingmast. The mas
The Pictorial handbook of London : comprising its antiquities, architecture, arts, manufacture, trade, social, literary, and scientific institutions, exhibitions, and galleries of art : together with some account of the principal suburbs and most attractive localities ; illustrated with two hundred and five engravings on wood, by Branston, Jewitt, and others and a new and complete map, engraved by Lowry . l israised and let fall. The ball itself, 5 ft. in diameter, is a frame of wood, covered with leather,and is perforated, to admit of its passage freely up and down the supportingmast. The mast is composed of several pieces of timber joined together, soas to form nearly a square, with a rectangular groove in one side, in whichslides a triangular rod of wood, which, passing through the ball, is firmlyfastened to it above and below. A piston-rod is connected with this beneath,larger at its upper than at its lower extremity, and terminating in a pistonfitted into an air-tube beneath. On two vertical guiding rods close to thepiston-rod run the two parts of a weight bored for the purpose, and carryinganother part sliding on the piston-rod, and to this weight the chain which 64G LONDON. passes over a pulley, which is seenwith the flooring, and is acted onthe floor of the octagon room, andWhen the weight is raised by thisof it sliding on the piston-rod getsof the piston-rod and raises it, and. raises the ball is attached. The chainon opening the turret door on a levelby a wheel and axle on a level withjust outside the door of that room,means, the collar attached to the partbeneath a projection on the upper partconsequently causes the ball to ascend. When the rod israised to such a heightthat the ball hasreached its greatestelevation beneath thecross, the piston iscaught by two strong clips connected with an apparatus which we must now describe, andwhich is, in fact, the most interesting part of the machinery. The woodengravings will assist us in our description. A rod havi
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1850, bookidpictorialhan, bookyear1854
