lower edges of the front wall 20 side walls 17 and 18 and back wall 32 projecting below top 16 define the inlet 30 for chamber 19 the outlet 31 is defined by the upper edges of the same walls which project above the top 16 spring 29 is coiled about pin 22 where a free end of the spring is so disposed that the cover 26 is yieldingly biased in the outlet closed position the cover 26 and lever arm 25 are free to rotate about pin 22 in order to close the inlet 30 of the chamber 19 and to open the outlet 31 to allow the sugar contained in chamber 19 to be released the lever arm 25 is depressed against the bias of spring 29 whereby the arcuate shutter 27 pivots about the longitudinal axis of pin 22 to move into a position which closes the inlet 30 and substantially simultaneously the cover 26 pivots about the same axis to move into a position which opens the outlet 31 of the chamber 19 such final positions for the arcuate shutter 27 and the cover 26 are shown in fig4 by releasing the lever arm 25 the spring 29 causes the cover 26 to close the outlet 31 and the arcuate shutter 27 to withdraw away from the inlet 30 a sealing plate 33 is located between the back wall 32 and lever arm 25 and contacts the inside surfaces of sides 17 and 18 and also contacts the inside surface of arcuate shutter 27 to prevent sugar from leaking out behind the back wall 32 since back.