. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Fig. 2.—Plan. A pulley A, figs. 1 and 2, runs slack upon the shaft B, and is driven by a rope connected to the steam-engine. In a seat turned in the centre block of the pulley A, is a friction strap C, the extremities of which the prongs of the clutch D, when it is engaged as shown in the wood-cuts ; this clutch slides laterally on keys sunk in the shaft, and is engaged and disengaged by the lever, E. The cone, F, is also keyed to the shaft; the ram chain passes thro
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Fig. 2.—Plan. A pulley A, figs. 1 and 2, runs slack upon the shaft B, and is driven by a rope connected to the steam-engine. In a seat turned in the centre block of the pulley A, is a friction strap C, the extremities of which the prongs of the clutch D, when it is engaged as shown in the wood-cuts ; this clutch slides laterally on keys sunk in the shaft, and is engaged and disengaged by the lever, E. The cone, F, is also keyed to the shaft; the ram chain passes through the double part of the lever, E, and through the aperture in the flange of the cone (as shown in fig. 2), where it is fixed by a pinching screw at G ; the ball I, slips along the chain, and is fastened by a pinching screw at any part, giving the required length. In working the macliine, the pulley, A, figs. 1 and 2, revolves in the direction shown by the arrow ; the' clutch having been engaged by thy lever, the shaft and the cone, on which the ram-chain is coiled, will revolve also, and raise the ram by the clipper, until it is disen- gaged by the slips on the guides. The ball, I, which is fixed to the chain, is at the same instant nearly close to the lever, and as the clipper with its slider is allowed to rise about 15 inches further, the ball then strikes the lever, pulls it back, and thus disengages the clutch; the shaft and cone being then at libi'rly, the vi'eight of the clipper and slides (nearly J uncoils the chain from the cone, the clipper therefore immeiliately descends again, and catches the staple in the top of the ram, when the man in attendance pushes forward the lever, and engages the clutch for another stroke, by a slight addition to its present gearing, the machine itself might be made to perform this re- engaging operation also. The crank on the end of the shaft, B, figs. 1 and 2, and the ratchet wheel and pall on the large end of the cone, are use
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Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience
