GB196762A - Improvements in or relating to the manufacture of earthenware hot-water bottles - Google Patents

Abstract

196,762. Brownlow, R. S. March 3, 1922. Pottery; pottery, throwing and turning.- Earthenware hot-water bottles and footwarmers are formed in two portions, one or both of which are formed by jollying in a mould furnished with a recess adapted to form a boss through which the filling-aperture is subsequently formed, the recess being arranged to permit withdrawal of the article from the mould. Fig. 1 shows a mould 11 furnished with a recess 12 to form a boss 17, the mould forming the body and one end of the article. An end 19, Fig. 3, furnished with the knob 20 and formed by jollying, pressing or casting, is applied to the body before or after removal from the mould. An aperture 22, Fig. 1, is preferably formed through the wall of the mould 11 for the introduction of tools to form the filling-aperture, the aperture 22 being normally closed by a plug 23. Moulds are described for the production of articles with base ribs 16, Fig. 5, or flat bases. Fig. 7 shows a mould for a D-shaped body, the clay at the corners being removed, after jollying, by a cutter. Flat footwarmers are formed of two portions each produced by jollying in a half-mould, one half-mould 28, Fig. 11, being furnished with a recess 29 to produce an article with a side filling-aperture as shown in Fig. 15 or each half-mould may be furnished with a half-recess 36, Fig. 16, to produce an article with a peripheral filling-aperture as shown in Fig. 18.