GB340176A - Improvements in and relating to machines for casting stereotype plates - Google Patents

Abstract

340,176. Winkler, C. Feb. 28, 1930. Stereotype, casting. - In stereotype casting- apparatus of the type in which the mould is adapted to be pressed against the outlet from the melting-pot, the driving-mechanism is provided with a reversing-gear under the control of the operator. The shaft a controlling the movements of the mould and the shaft b controlling the valve in the melting-pot are driven in known manner from the shaft c. The parts d, e of a clutch rotate with the motor shaft which is in line with the shaft c; the part f of the clutch is fixed to the shaft c and the part g is rotatable on the shaft and is connected thereto by reversing gearing. The sliding movements of the clutch parts d, e are controlled by a lever p pivoted at q and under the control of a spring r and stops t, u, v on a lever w. In normal use, the lever p is depressed until it is engaged by the stop t in which position the parts d, f of the clutch engage to rotate the shaft c forwardly. The rotation continues until a stop x on the shaft a engages a projection on the lever wand causes the stop t to release the lever p. The movement of the lever w is such that the lever p, under the influence of the spring r, engages. the stop u, in which position the clutch-parts are in neutral position. To reverse the rotation of the shaft, the lever w is moved until the lever p is allowed to engage the stop v when the parts e, g of the clutch engage. When the mould has been returned to original position, a second stop z on the shaft a engages a projection on the lever p and pushes it into position to be engaged by the stop u.