184 MECHANICS. 



elevating heavy leads, by lashing the lower end of each 

 outer pole to a strong stake, driven into the ground 

 obliquely, by first making a hole with a crow-bar. It is 

 convenient to place the two pole tripods sufficiently dis- 

 tant from each other to give room for the stack, or rick, 



ForJc on Poles for Building Stacks. 



and to allow the wagon to pass within them. The eleva- 

 tor first lifts its load, and then carries it along the rope, 

 till the man on the load drops it by a jerk of the cord. 

 This apparatus is made by J. H. Chapman, of Clayville, 

 K. Y. 



HAY PRESSES. 



Among the best Hay Presses in the country is the one 

 manufactured by L. & P. K. Dederick, Albany, and rep- 

 resented in the annexed engraving. It is worked by one 

 or two horses, operating with great force by means of 

 the arms on each side, which are connected with toggle- 

 joint levers, explained in .a former part of this work. The 

 hay is thrown in from the upper platform, and when re- 

 duced to compact bales, by means of the powerful force 

 which this press gives, is taken out at the lower. In order 

 to prevent the necessity of the horses running back at 



