Improvements in and relating to electric heating

Abstract

Abstract 331,237. Billerey, F. A. L. March 25, 1929. Electric radiators.-Heating panels or portable radiators comprise a metal casing 1b filled or backed with cement or other self-hardening compound in which is embedded one or more glass or other insulating tubes 4 containing withdrawable resistances. The casing may be corrugated and closed by an asbestos plate 7 or may be formed by two corrugated plates. In Fig. 5 the casing is formed by the, space between an outer tube 12 and an inner corrugated tube 11. End caps are fitted on the outer tube. Fig. 6 shows a component for building up tubular heaters comprising a metal tube 16 screwed at the ends and in which the glass tube 4 is positioned by steatite bushes 17. Such heaters may be coupled together by screwed sleeves 18 and lock nuts 19, a fibre ring 20 surrounding the ends of adjacent bushes. Specification 309,093 is referred to.

Inventors

No inventors recorded.

Bibliographic Details