﻿420 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  a 
  new 
  continuous 
  kiln 
  perfected 
  in 
  France 
  in 
  recent 
  years. 
  Thi& 
  

   kiln 
  is 
  not 
  so 
  economical 
  in 
  fuel 
  as 
  the 
  German 
  or 
  Danish 
  kilns 
  

   but 
  is 
  extremely 
  economical 
  in 
  manual 
  labor. 
  None 
  of 
  them 
  has 
  

   as 
  yet 
  been 
  built 
  in 
  this 
  country. 
  

  

  Accordingly 
  there 
  are 
  in 
  present 
  use 
  in 
  portland 
  cement 
  manu- 
  

   facture 
  five 
  different 
  types 
  of 
  kilns 
  requiring 
  three 
  different 
  

   methods 
  of 
  preparation 
  for 
  the 
  raw 
  materials 
  regardless 
  of 
  dif- 
  

   ferences 
  of 
  preparation 
  which 
  may 
  be 
  required 
  due 
  to 
  the 
  char- 
  

   acter 
  of 
  these 
  materials. 
  

  

  The 
  kilns, 
  plant, 
  etc. 
  of 
  the 
  leading 
  manufactories 
  are 
  as 
  fol- 
  

   lows: 
  

  

  Approximate 
  

   output 
  kiln 
  

   barrels 
  

   Manufactory 
  Kilns 
  No. 
  a 
  day 
  

  

  Coplay 
  cement 
  co 
  Schoefer 
  continuous. 
  . 
  . 
  9 
  55 
  

  

  Coplay 
  cement 
  co 
  Ordinary 
  intermittent 
  . 
  . 
  23 
  30 
  

  

  American 
  cement 
  co. 
  Egypt 
  . 
  . 
  Ordinary 
  intermittent: 
  . 
  56 
  30 
  

  

  American 
  cement 
  co. 
  Jordan 
  . 
  . 
  Ordinary 
  intermittent 
  . 
  . 
  6 
  30 
  

  

  Atlas 
  cement 
  co 
  . 
  . 
  Revolving 
  continuous. 
  .20 
  150 
  

  

  Alpha 
  cement 
  co 
  Revolving 
  continuous. 
  . 
  8 
  150 
  

  

  Vulcanite 
  co 
  Revolving 
  continuous 
  . 
  . 
  3 
  150 
  

  

  Sandusky 
  co 
  . 
  . 
  . 
  , 
  Revolving 
  continuous 
  . 
  . 
  4 
  120 
  

  

  Bronson 
  co 
  Revolving 
  continuous 
  . 
  . 
  3 
  120 
  

  

  Empire 
  co 
  Ordinary 
  intermittent 
  . 
  . 
  18 
  130 
  

  

  Glens 
  Falls 
  co 
  Schoefer 
  continuous 
  ... 
  8 
  60 
  

  

  White 
  cliffs, 
  Ark 
  Schoefer 
  continuous. 
  . 
  . 
  8 
  60 
  

  

  Buckeye 
  cement 
  co 
  Ordinary 
  intermittent 
  .... 
  30 
  

  

  Buckeye 
  cement 
  co 
  . 
  . 
  Dietzseh 
  continuous 
  50 
  

  

  Diamond 
  cement 
  co 
  a 
  Dietzseh 
  continuous 
  » 
  

  

  Yankton, 
  S. 
  D 
  Johnson 
  intermittent 
  . 
  . 
  6 
  

  

  Bonneville 
  cement 
  co. 
  Revolving 
  continuous. 
  . 
  3 
  150 
  

  

  A 
  new 
  plant 
  near 
  Egypt, 
  Pa. 
  and 
  another 
  near 
  Sandusky, 
  

   O/are 
  both 
  installing 
  revolving 
  continuous 
  kilns. 
  

  

  The 
  character 
  of 
  the 
  kilns 
  being 
  understood 
  the 
  preparation 
  

   of 
  raw 
  materials 
  can 
  now 
  be 
  more 
  readily 
  discussed. 
  This 
  ip 
  

   described 
  by 
  Mr 
  Lewis 
  as 
  follows: 
  "To 
  accurately 
  proportion 
  

  

  a 
  Rebuilding. 
  

  

  