DRYING APPARATUS, ETC. 165 



made in sizes to take from 2000 to 10,000 lb. weight of 

 wet cacao. 



Another rotary dryer of different construction called 

 the Hamel-Smith rotary dryer, has been placed upon 

 the market. It is claimed by the inventor that this 

 apparatus (depicted by Figs. 48 and 49), which is manu- 



FlQ. 49. — Section of the Hamel-Smith rotary dryer. 



factured solely by David Bridge and Co., Ltd., is suitable 

 for drying cacao, coffee, copra, &c. The principle of this 

 dryer is a revolving frame carrying six cylinders, some 3 ft. 

 in diameter, and made of any length, in accordance with 

 the size required, to take from 2000 to 10,000 lb. of wet cacao 

 or other material. The heating surface is supplied by a 

 kiln floor situated above a suitable furnace. The motive- 

 power can be supplied by hand, in the case of the smaller 

 sizes, but the larger must be supplied with power movement. 

 This dryer promises to furnish a simple and economic 

 method for drying cacao with facility and despatch, while 

 securing excellent quality in the market product. Fig. 48 

 shows the exterior of the apparatus, which is strong and 

 compact ; the furnace, or lower portion, being sunk below 



