The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 130
screw at eachend, through which the screws, c c,pass. In Fig. 2, e is a portion of thegrove, within which the ends of theplates slide, and //, the box or cham-ber for receiving such plates, whichare so formed at their edges, or thatpart which forms the coupling, thatas they are raised in the groove… … Fig. 3. a a j \ a g ri ^ 1 a 1 L. 1 M which is effected by means of a winch or handle, g, seen in Fig 1, which im-parls motion by means of a bevel wheel to the horizontal shaft, It, that themetal plates or shutters, a a, will be raised in the groove, and the same willbe disengaged successively…
Architecture · Civil engineering · Science
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