RUBBER MANUFACTURE. 127 



reduction gear. The drying store is provided with a small boiler, 

 and the hydraulic blocking presses are supplied with electrically 

 driven pumps and accumulator. 



A plan of the apparatus required for Dr Olsson-Seffer's patent 

 system of treating Castilloa rubber latex is given in Fig. 28. 

 Although this was specially constructed for dealing with Castilloa 

 rubber latex, the makers state that it can be modified to deal 

 with that of Hevea brasiliensis. 



