The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 250
The annexed woodcut (Fig. 1) represents a plan of the copyinginstrument. I, I, represent the frame containing the train ofwheels for giving motion to the cylinder C; D, the drum fromwhich the weight is suspended; and F, the fan which prevents ac-celeration. S, tlie screw on which the nut, N,… … clock-plate p, from which the pendulum B (seen in section) is sus-pended, there are fixed ivory brackets h, h, which support platinumwires c, c, fixed to a cross wire o, that slides easily on the brackets.The wires from the voltaic battery r, are connected with the clock-. 29 218 THE CIVIL ENGINEER…
Architecture · Civil engineering · Science
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