MACHINERY AT TBE LATE FAIR. 



Cochran's Quartz- crushing Machine. 





EXPLANATION. 



A. A. — Foundation frame. 



B. B. — Lower plate or disc. 



C. C. — Upper disc. 



D.— Pully and belt for giving motion to upper plate, and by it 

 to the balls. 



H. — Fly wheel. 



a. a. — Balls or spheres. 



g. g. — Grating screen or bolter. 



d. d. — Outside curb to conduct the ground matter, by the outer 

 or conducting pipes to the amalgamator or other receiving appa- 

 ratus. ■ ':"i^'" 



h. h. — Pipes. 



