Society of Glass Technology · [Sheffield] · leaf 740
ton forward, the knife is thus moved forward quicklyunderneath the parison mould. Before the blade is withdrawn itis given a short vertically downward movement by means of afixed cam on the framework of the machine. S. E. 407. A Shearing Mechanism for Glass-making Machines.R. F. Hall, Wythall, near… … glass, the trailing glass being cut off by a pivoted or sliding knife,the mould is adapted to be raised to an intermediate position inwhich the cut-off is effected, the mould being then raised fromthe knife before the return strokeof the latter. In the form shown,in which the machine is of thetype…
Glass
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