478

PRACTICAL CONSTRICTION.

Subdivision Second— Useful Apparatus and Erections.

1683. Section First — Portable Caldron and Furnace .—In fig. 918 we giveelevation, and in fig. 919 section, of the American caldron and furnace, as manu-factured by Messrs T. & C. Clark & Co., Shakespeare Foundry, Wolverhamp­ ton . By the use of an arched bottom b, as shown in section a a, fig. 919, thefuel is enabled to be raised above the lower portion of the water in the caldron ;c the ash-pit, d cock. The inside of the caldron being lined with porcelain, allliability to rust is prevented.

Fig. 918.

tag 1 . ,.

PERSPECTIVE via tv op coubinio oaldkon and poknace.

SECTION OF COMBINED CALDRON AND

1684. Asphalt Caldron .—In fig. 920 we illustrate this apparatus as manu-factured by Woods, Suffolk Iron Works, Stowmarket. It will be found very

Fig. 920.

PERSPECTIVE VIEW OF ASPHALT CALDRON AND ORATE.