LABOR AND THE HOME ELECTIONS.

Dunstan Times, Issue 3147, 11 December 1922, Page 2

LABOR AND THE HOME ELECTIONS.

The making of artificial teeth is a line art. and its success depends; largely on the accurate baking of the line porcelain used in the construction ol teeth. All sorts of shades have to be given to teeth of different sizes, in order that accurate matches may he made with every kind of tooth from the pearly white ones of the popular actress to the deeply stained tusks oi the inveterate smoker. In order to be sure of obtaining the desired result the temperature at each stage, in the baking process must he accurately eonttollcd. To ensure this condition a British manufacturer has devised a very ingenious electric furnace in which a quartz tube is heated hy a close coil ol wire wound round its exterior. The teeth under treatment travel along this tube, the. temperature of each portion el which can be exactly recorded and controlled. This is a type of furnace which has 1 been developed in Great Britain lor a wide variety of purposes. It can be made in larger sizes with tunnels nl fire clay for the glazing of tiles and jKittery ol various kinds. Its main advantage lies in the perfection of temperature control which ensures that all tli<’ material passing through will be properly glazed. With other types of furnace there is a large portion of “throwouts” and the 7-ost of the production is therefore greatly increased. Owing to the fact that very little of the beat, electrically produced is wasted the electrie furnace proves to be iiiueli nion economical than would at first sight be supposed.