188 LABEUNC; CANS 



chines are adjustable to various sizes of cans and can he oper- 

 ated by hand, motor, or belt power. 



Principle of Labeling Machines. The cans are placed into 

 a chute from which they roll into the machine by gravity. They 

 are caught by two endless belts which draw them through the 

 machine They first pass over revolving metal discs that touch 

 each can with a trace of "pick-up" cement. From here the can 

 rolls over the label table which is loaded with a stack of labels, 

 face-down. The touch of "pick-up" cement on the cans causes 

 each can to pick up one label, which is automatically wrapped 



Fig*. 79. Burt labeling- machine 

 Courtesy of Burt Machine Co. 



around the can as it rolls on. An endless belt passing through 

 a paste box applies a small strip of paste to the lap of the label 

 and a curling rod stretches the label taut and gives its lap an 

 inward curl, making it to conform to the shape of the can and 

 ensuring a perfect seal. 



The label table is equipped with an automatic feeding ar- 

 rangement which pushes the stack of labels up as fast as the 

 labels are being used. 



Wrinkles and Rust Spots on Labels. In the latest models 

 of labeling machines no paste touches the cans proper. The 

 "pick-up" cement used on the cans, is moisture-proof and is 

 applied hot. This is a great advantage from the standpoint of 

 ensuring freedom from rust spots on labels. The cement, being 

 applied hot. dries instantly and having no corrosive action on the 



