The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 92
extremities of theclipper, are made of sulTieient length to allow the slider to rise 15inches, after the ram has been disengaged by the slips ; the ram chain,which is shackled to the clipper, passes over a pulley at the topof the guides, and is led oft to the other part of the machine byanother… … Fig. 2.—Plan. A pulley A, figs. 1 and 2, runs slack upon the shaft B, and is drivenby a rope connected to the steam-engine. In a seat turned in thecentre block of the pulley A, is a friction strap C, the extremities ofwhich embr.ice the prongs of the clutch D, when it is engaged asshown in the…
Architecture · Civil engineering · Science
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