SWEETENED CONDENSED MILK 



111 



is crimped on. Sweetened condensed milk is of a semi-fluid, 

 viscous and sticky consistency. The successful and rapid filling 

 of the cans without spilling the milk over the top of the 

 can is, therefore, somewhat difficult. If done by hand the 

 work is very slow. For this reason many ingenious ma- 

 chines have been devised which are more or less efficient 

 in "cutting off" the milk without "slobbering." The filling 

 machines now in use vary from the primitive hand filler, in 

 which the condensed milk is "ground out" by the turning of 



Fig 1 . 40. The solder seal 



Tig. 41. The Sanitary can 



Fig*. 42. The Gebee seal Fig-. 43. The McDonald seal 



a crank by hand, to the most perfect forms of automatic filling 

 machines. In these filling machines, all parts coming in con- 

 tact with the condensed milk are constructed of brass. They 

 usually are equipped with a reservoir, receiving tank, or hopper, 

 which has an automatic feed, usually a floating device attached 

 to a valve, which regulates the inflow according to the discharge. 

 The discharge is adjustable to fill any size can with a remarkable 

 degree of accuracy, except gallons which are usually filled by 



