223. Redgrave, J., and Wright, D. Jan. 18.
Moulding. In making moulded glass vessels or other hollow articles, in which holes are required for the insertion of taps, stoppers, or other attachments, such holes are left in the article at the time they are moulded, and an increased thickness a is formed round the holes in the interior of the article. The inner ends of the holes may be closed by a thickness of glass when moulded, which can be readily removed afterwards to complete the hole. The holes may be formed with screw-threads to receive screw attachments. The invention may be applied to glass barrels, filters, lamp and other vases, ink holders with two or more compartments, jugs, tankards, cups, hollow globes for forming ornaments, chandelier and lamp bodies, knife, door, tea-kettle, beer-machine, and other handles, and other hollow glass vessels or fittings. Glass taps, pipes, or stoppers may be formed in a like manner for the insertion of a plug of glass or other material with or without washers.
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