LIST OF ILLUSTRATIONS. . xxvii 



PAGE 



83. Elevation of stack-drier, Edison P. C. Co 403 



84. Installation of kominuters and tube-mills 405 



85. Plan of plant, Lawrence Cement Co 406 



86. Plan of plant, Hudson P. C. Co 407 



87. External view of Gates crusher 431 



88. Sectional view of Gates crusher. 432 



89. Elevation of rock-crushing system, Edison P. C. Co 434 



90. View looking down between rolls, Edison P. C. Co 435 



91. Plan and elevation of Edison rolls 346 



92. Dry-pan 438 



93. Huntingdon mills at Atlas plant 439 



94. Section of Griffin mill 441 



95. Interior of Kent mill 444 



96. Lindhard kominuter 446 



97. " " 447 



98. Exterior view of kominuter 451 



99. Gates ball-mill 453 



100. Transverse section of Gates ball-mill 454 



101. Automatic ball-mill feeder 456 



102. Gates tube-mill 458 



103. Setting of Davidsen tube-mill 461 



104. Exterior view of Bonnot tube-mill 463 



105. Williams mill, casing opened 466 



106. " " , section 467 



107. Dome kiln 470 



108. Plan and section of Johnson kiln 472 



109. Section of Hoffman kiln 473 



110. Plan of Hoffman kiln 474 



111. Dietzsch kiln 475 



112. Section of Schofer kiln 476 



113. Hauenschild kiln 477 



114. Schwarz kiln 477 



115. Exterior of rotary kiln 480 



116. Plan and elevation of rotary kiln 481 



117. Driving mechanism of rotary kiln 482 



118. Details of 60-foot rotary kiln 483 



119. Raw -material storage bin 484 



120. Section of Edison 150-foot rotary kiln 485 



121. Coal-burning arrangement for rotary kiln 487 



122. " " " " " " 488 



123. Kirkwood gas burner for rotary kiln 489 



124. " " " applied to kiln 490 



125. Arrangement of kiln lining, wet process 493 



126. " " " " , dry process 493 



127. Coarse-toothed rolls for lump coal 514 



128. Smooth rolls for coal crushing 515 



129. Section of Smidth ball-mill 517 



130. Smidth ball-mill, external view 518 



