COCONUT CULTIVATION 



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means must be provided to prevent its lateral 



escape from the press plates. 



Modern presses are of two leading types ; 

 1st, plate presses (Fig. 4), in 

 which the pressing plates are not 

 removed and the meal to be 

 pressed is previously moulded and 

 squeezed to small bulk in mould- 

 ing machines; 2nd, cage presses 

 (Fig. 5), in which a perforated 

 cylinder or cage is used to con- 

 tain the loose plates and meal, 

 no cake-forming machine being 

 required. Such cage presses are 

 usually adopted for first-pressing 

 operations, especially when press- 

 ing cold, and are now made to 

 work regularly at a pressure of 

 three tons per square inch. 



The cage is constructed with 

 vertical steel bars held to form a 

 cylinder by means of external 

 steel rings. As a rule one 

 charging kettle is erected over 

 each pair of presses, but where 

 considerable time for the pressing 

 is required, when one pressing 

 FIG. 5. only is used, the cages are ar- 



ranged to travel backwards and 



forwards between the kettle and the presses, 



when one kettle may serve any number of presses. 



Generally the time of charging and discharging 



