Report of the Committee of the Society of Arts, &c., Together With the Approved Communications And Evidence Upon the Same, Relative to the Mode of Preventing the Forgery of Bank Notes 18
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This is effected by the action of the spring fixed to the lever m, shown at y, which of course draws the band wheel B, aijd its two pins out of gear, and the moving parts of the press in- stantly become stationary. The catch-piece q, is again 58 ON PREVENTING FORGERY brought to its original position, and fit to receive the end of the lever m, by the spring u, before named : the posi- tion of this may be better seen at u, fig. 1. I, represents an axis, at each end of w^hich is formed a cylindric...al box, or barrel, containing a spiral spring : each of these barrels has a cord coiled round it, one end of vsrhich is made fast to the barrel, and the other end is furnished with a hook, which is placed in a staple fixed at each end of the plank G. By these springs being in a state of tension, the plank G, is kept in the position here shown ; but when the press is set in motion, the rollers force the plank and plate to move forward, which uncoils the cord, and winds up the springs contained in the barrels, by which means, when the rollers disengage the plank, the force of the springs is apphed to coil up the cord, and thereby return the plank to the position here shown.
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