CANE SUGAR. 



W, and the valve completely closes. The lever, Z, engages with the lever, N, 

 breaking the lock formed by the dead centre of levers N and Jf, and the 

 weight of the liquid opens the outlet valve and the contents of the tank are 

 discharged. This discharge is controlled by the conical valve, H, which also 

 has a rubber seating, and thus a joint is formed against the wall of the tank 

 at 8. 



It will be seen that the liquid is delivered on to the tun-dish, Q, connected 

 with the outlet valve, ZT, and the weight of the liquid on this tun-dish has the 

 effect of holding the valve open until all the liquid is drained from the 

 weighing tank. This valve returns by means of the weighted lever, M, when 

 relieved of the weight of the liquid on the tun-dish, Q. 



The sides of the tank are continued down to prevent splashing, and a 

 mechanical counter, It, registers every weighing. 



This apparatus has been installed at Puunene, at Oahu, and at 

 Bay, which are among the largest factories in the world. 



FIG. 270. 



Leinert Meter. This apparatus (Fig. 270} consists of two tanks of equal 

 -capacity A l and A^ ; they are balanced on a knife edge B at C is a syphon 

 pipe and at D is arranged an adjustable counter-weight. The juice discharges 

 from the pipe E into the gutter F which is tilted one way or the other by the 

 movements of the tanks ; the juice flows into one tank until the weight is just 

 sufficient to counterpoise that at D, when the tank tilts into the position shown 

 by the dotted lines and allows the juice to discharge through the syphon ; 

 simultaneously the gutter is tilted and directs the flow of juice to the other 

 tank ; the number of fillings is registered by an automatic counter. 



Megass. It is only exceptionally that the weight of the megass is 

 directly determined, although this would afford a control of great value. In 

 some Demerara factories, where water carriage presented great difficulties for 



496 



