164 



MECHANICS. 

 Fig. 145. 



Dick's cast-iron Cheese-press. 



and has great power ; to try it, weights were increased 

 upon the lever, until the iron frame broke with a force 

 equal to sixteen tons. 



ENDLESS-CHAIN POWERS. 



A convenient and compact machine for applying ani- 

 mal power is by means of the endless chain, working 

 in the position of an inclined plane, as represented in 

 the annexed cut {Fig: 147), where the weight of a 

 large dog is used for driving a churn-dasher. The 

 platform on which the animal stands is formed of strips 

 of light wood riveted to two India-rubber straps, and 

 their constant downward motion turns the fly-wheel, 

 to which a rod is attached for working the dasher. 



