Marson, Percival · London, New York [etc.] Sir I. Pitman & Sons · leaf 103
expedited by the use of these automaticdevices for opening and shutting the moulds. It is ob^^ous that whatever the shape of the mould,or whatever the design wdthin the case, the glass takesthe impression and retains it in after working. Inthis way, square sections, fluted indentations, or… … By permission of -- Melin & Co. VERTICAL CRACKING-OFF MACHINE 88 GLASS have been always fully occupied with useful work aboutthe factories in which such machines have been intro-duced, so it cannot be said that they have been forcedto be idle. The advantages possessed by these automaticmachines…
Glass manufacture
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