THE EXTRACTION OF JUICE BY MILLS. 



plate. The original inclined throughway bolt mill was, the writer believes, 

 built by Fawcett, Preston & Co., under one of Chapman's patents. 



External Bolt Type. Mills are exceptionally found with the 

 vertical bolts passing without the shafts of the lower rollers, the top cap being 

 extended so as to receive them. 



Delbert Mill. This mill, shown in Fig. 106, has a triangular head- 

 stock, the usual vertical holding down bolts being replaced by bolts inclined 

 to each other at 60, which do not pass through the bed-plate; these bolts lie 

 parallel with the lines joining the centres of the top roller and a lower 

 roller and hence in the direction of the principal strains; the hydraulic is 

 applied on the top cap and a very narrow trash bar is obtained. 



Cj) ----jfiSS******^ 



FIG. 106. 



Krajewski-Pesant Mill. A radical departure from conventionalism 

 is shown in the headstock adopted by the Krajewski-Pesant Co. in the H-type 

 of mill illustrated in Fig. 107. The headstock is of triangular form ; the 

 hydraulic pressure is applied to the back roller and in a line at right angles to 

 the layer of megass ; in this way the whole amount of the pressure is 

 exerted upon the megass ; the back roller may be said to float upon the ram 

 of the hydraulic, the movements of which it will follow with a minimum lag due 

 to reduced friction between the brass and the surface upon which it rests ; in tho 

 conventional mill the brass rests on a horizontal surface. Both front and back 



175 



