698 



INDEX. 



Crushers, Blake, 34, 238, 430 



, cone-grinders, 34, 238, 430-433 



, crackers, 35, 239, 430 



, definition of group, 429-430 



, Gates, 34, 238, 431-433 



, gyratory, 34, 238, 431-433 



, jaw, 34, 238, 430 



, McEntee, 239, 430 



, Mosser, 430 



, nippers, 34 



, rotary, 238, 430-433 



, Sturtevant, 125, 238 



, used for coal, 514 



gypsum, 34 

 lime, 125 



natural cement, 221, 238 

 plaster, 34 



Portland cement, 429-433, 530 

 Crushing machinery, classification of, 429-430 

 for coal, 514-520 

 gypsum, 34-37 

 lime, 124-125 

 natural cement, 236-247 

 plaster, 34-37 



Portland-cement clinker, 422-468, 530-535 

 Portland-cement materials, 404-410,414,417-418,422-468 

 slag cement, 657-658 

 slaked lime, 124-125 



see also Crushing practice, Crushers, Ball mills, Tube mills, 

 Kominuters, Rolls, Mills, Mill-stones, Edge-runners, 

 Crackers. 

 Crushing practice, general discussion, 422-428 



types of machinery used, 238, 429-430 

 use of separators, 245, 426-428 

 see also Crushing machinery. 

 Cummer calciner for plaster, 46-48 

 Cummings mill, 241-243 

 Cyclone pulverizer, 238 



Cylinders, hardening, for lime-sand brick, 139-140 

 slag brick, 680-682 



Davidsen tube mill, 457-462 



see also Tube mills. 



Davis, C. A., on origin of marl deposits, 337, 338, 340 

 Deval, L., on effect of alumina, 602 

 Dietzsch kiln, 474 



Dodge process for lime-hydrating, 125 

 Dolomite, composition of, 6, 90-91 



see also Limestones, Magnesian 



