Séance du l'2 .htnricr lOKi 



19 



part of a band is dischariijed onto Ilio upper siirraco of 

 the lower pari oltlie same band, IVoni liere alici" liax'el- 

 lint; nearly tbe wliole journey it is airain (lis(haii;c(l 

 onto (be upper surface of Ibe uppei- pari of llie ne\l 

 band and so on until linally it is disi'bari^ed into an 

 Arclieniedian screw conveyor wbicb carries it into tbe 

 sacking exil. 



Tbe seed is fed in at tbe top of tbe niacbine by an 

 automatic bopj)er, wbicb drops in exactly tbe (pianlily 

 of seed re([uired to make a layer one seed deep on (In- 

 endless bands. 



A fan situated near tbe feed in causes a continuous 

 draft of ail' to circulate Ibrougb tbe macbine. Tbe air is 

 exbausled from Ibe bot air generator, a brick cbamber 

 surroiuiding Ibe furnace. 



Tbe temperature is regulated by a damj)er wbicb 

 opens or closes by means of a screw. Tbis damper is 

 interposed between tbe bot air generator and Ibe bol air 

 cbamber. A tbermometer passing into Ibe body of Ibe 

 bol air cbambei- indicates tbe beat of tbe air at Ibal part 

 of tbe macbine. and is used in regulating llii' Icmpcra- 

 tures. By oj)ening Ibe damper as soon as any indication 

 of a fall is evident, and by closing it as soon as a rise 

 commences it is i-asily possible to kee|) llie iiKicbine 

 regulated to -f- or — I i' degree of llie desidcrc d lem- 

 j)eralure. Tbis leguialion could of course be mack' 

 automatic if necessary. We bave not lilted an aulonialic 

 control on account of Ibe extra expense, our funds not 

 being very large. 



!n working tbe macbine tbe following factors have 

 to be considered. 

 1 ) Tbe outside temperature Ibe temperatnieoi'lbeset'd. 



