﻿rl26 
  NEW 
  YORK 
  STATE 
  MUSECTM 
  

  

  /-ompany's 
  standard 
  mills, 
  of 
  which 
  they 
  operate 
  several 
  others 
  scat- 
  

   tered 
  to 
  the 
  eastward 
  in 
  tlie 
  direction 
  of 
  the 
  mines. 
  In 
  their 
  

   largest 
  mill, 
  *^no. 
  6," 
  thej 
  are 
  experimenting 
  snccessfnllj 
  with 
  a 
  

   secret 
  process 
  by 
  which 
  grit 
  and 
  other 
  impurities 
  are 
  separated 
  

   from 
  the 
  pulverized 
  talc, 
  thereby 
  producing 
  a 
  finer 
  grade 
  of 
  stock. 
  

  

  Almost 
  the 
  entire 
  process 
  of 
  pulverization 
  is 
  performed 
  by 
  auto- 
  

   matic 
  machinery, 
  so 
  that 
  after 
  a 
  supply 
  of 
  the 
  raw 
  material 
  is 
  pre- 
  

   pared 
  by 
  the 
  day 
  shift, 
  the 
  mill 
  runs 
  itself 
  all 
  night 
  except 
  for 
  the 
  

   final 
  operation 
  of 
  filling 
  and 
  weighing 
  the 
  bags 
  of 
  pulp 
  and 
  loading 
  

   them 
  on 
  the 
  cars. 
  

  

  The 
  raw 
  talc 
  varies 
  in 
  size 
  from 
  dust 
  to 
  masses 
  two 
  ieet, 
  or 
  more, 
  

   in 
  length. 
  As 
  already 
  mentioned, 
  there 
  is 
  some 
  difference 
  in 
  color 
  

   and 
  considerable 
  difference 
  in 
  texture 
  and 
  quality 
  of 
  the 
  products 
  

   of 
  the 
  different 
  mines 
  ; 
  but 
  they 
  are 
  so 
  mixed 
  by 
  experienced 
  work- 
  

   men 
  that 
  the 
  finished 
  product 
  is 
  uniform 
  both 
  in 
  appearance 
  and 
  

   quality. 
  

  

  Process 
  of 
  pulverization. 
  The 
  process 
  of 
  pulverization 
  con- 
  

   sists 
  of 
  seven 
  operations. 
  First, 
  the 
  large 
  masses 
  of 
  talc 
  are 
  

   broken 
  with 
  a 
  sledge. 
  Second, 
  the 
  talc 
  is 
  crushed 
  by 
  a 
  pair 
  

   of 
  slightly 
  corrugated 
  steel 
  rolls, 
  30 
  inches 
  in 
  diameter. 
  Third, 
  

   it 
  is 
  conveyed 
  by 
  a 
  belt 
  to 
  bins 
  on 
  the 
  top 
  fioor 
  of 
  the 
  mill. 
  Fourth, 
  

   from 
  these 
  bins 
  it 
  feeds 
  into 
  a 
  Grifiin 
  mill 
  on 
  the 
  floor 
  below. 
  Fifth, 
  

   it 
  is 
  loaded 
  into 
  large 
  hopper 
  shaped 
  bin-cars 
  which 
  are 
  used 
  for 
  

   storing 
  as 
  well 
  as 
  conveying 
  the 
  material. 
  Sixth, 
  the 
  contents 
  of 
  a 
  

   bin-car 
  are 
  placed 
  in 
  an 
  Alsing 
  cylinder, 
  along 
  with 
  a 
  quantity 
  of 
  

   water-worn 
  quartz 
  pebbles, 
  the 
  abrasion 
  of 
  which, 
  as 
  the 
  cylinder 
  

   revolves, 
  completes 
  the 
  pulverizing 
  process. 
  The 
  talc 
  pulp 
  is 
  sifted 
  

   through 
  a 
  grating 
  in 
  the 
  cylinder 
  which 
  retains 
  the 
  pebbles. 
  Sev- 
  

   enth, 
  it 
  falls 
  into 
  a 
  bin 
  with 
  a 
  tapering 
  bottom 
  which 
  joins 
  the 
  

   bag-filling 
  device 
  on 
  the 
  main 
  floor. 
  This 
  machine 
  loads 
  approxi- 
  

   mately 
  50 
  pounds 
  of 
  the 
  talc 
  pulp 
  into 
  a 
  })aper 
  bag 
  placed 
  under 
  the 
  

   spout 
  by 
  hand, 
  and 
  packs 
  it 
  by 
  means 
  of 
  a 
  revolving 
  disc 
  acting 
  

   against 
  the 
  rising 
  platform 
  which 
  carries 
  the 
  bag. 
  The 
  weight 
  of 
  

   the 
  bag 
  is 
  then 
  corrected 
  on 
  a 
  scale, 
  and 
  the 
  bag 
  is 
  loaded 
  directly 
  

   on 
  the 
  car 
  for 
  shipment. 
  Two 
  men 
  are 
  needed 
  to 
  fill 
  and 
  handle 
  

   the 
  bags. 
  

  

  There 
  are 
  two 
  bag-filling 
  machines, 
  but 
  at 
  the 
  time 
  of 
  this 
  visit 
  

  

  