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MASSACHUSETTS AGRICULTURE. 



B, are fly-wheels on a shaft which has its bearings on the frame, 

 and which between these bearings, is formed into a short crank. 



C, is a pully on the same shaft, to receive a belt from a steam- 

 engine or other driver. 



Figure 4, shows a side view or elevation of the other parts of 

 the machine in place, as they would be presented to view by re- 

 moving one side of the frame. The parts of this figure which 

 are shaded by diagonal lines, are sections of those parts of the 

 frame which connect its two sides, and which are supposed to be 

 cut asunder, in order to remove one side and present the other 

 parts to view. The dotted circle D, is a section of the fly-wheel 

 shaft ; and the circle E, is a section of the crank. F, is a pit- 

 man or connecting rod which connects the crank with the lever 

 G. This lever has its fulcrum on the frame at H. A vertical 



