﻿690 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Tracks 
  are 
  also' 
  laid 
  along 
  the 
  benches, 
  and 
  as 
  the 
  working 
  face 
  

   recedes 
  the 
  tracks 
  are 
  shifted 
  with 
  crowbars. 
  The 
  cars 
  are 
  brought 
  

   down 
  to 
  the 
  working 
  face 
  by 
  gravity, 
  or 
  a 
  small 
  engine 
  which 
  is 
  

   chiefly 
  used 
  to 
  draw 
  Ithem 
  to 
  the 
  tempering 
  pits. 
  A 
  temporary 
  track 
  

   is 
  laid 
  over 
  the 
  ring 
  pits, 
  on 
  which 
  the 
  cars 
  can 
  be 
  run 
  to 
  facilitate 
  

   dumping. 
  Those 
  cars 
  containing 
  clay 
  for 
  the 
  lower 
  yard 
  are 
  run 
  on 
  

   to 
  a 
  self-acting 
  inclined 
  plane, 
  and 
  on 
  this 
  the 
  empty 
  cars 
  and 
  

   tempering 
  sand 
  for 
  the 
  upper 
  yard 
  are 
  also 
  brought 
  up. 
  The 
  

   tempering 
  sand 
  is 
  dug 
  by 
  a 
  steam 
  shovel, 
  at 
  the 
  base 
  of 
  the 
  terrace 
  

   escarpment. 
  The 
  bricks 
  are 
  dried 
  on 
  covered 
  yards 
  and 
  burnt 
  in 
  a 
  

   special 
  type 
  of 
  kiln. 
  It 
  consists 
  of 
  two 
  walls 
  of 
  best 
  quality 
  brick, 
  

   about 
  15 
  feet 
  high 
  and 
  14 
  inches 
  thick. 
  The 
  lower 
  portion 
  of 
  the 
  

   walls 
  containing 
  the 
  doors 
  are 
  2 
  feet 
  thick, 
  and 
  the 
  two 
  walls 
  are 
  

   about 
  20 
  feet 
  apart. 
  The 
  two 
  ends 
  have 
  to 
  be 
  walled 
  up 
  with 
  

   double-coal 
  bricks 
  after 
  the 
  kiln 
  is 
  filled. 
  Coal 
  is 
  the 
  fuel 
  used. 
  

   The 
  bricks 
  when 
  burnt 
  are 
  loaded 
  on 
  cars 
  and 
  run 
  do^wn 
  to 
  the 
  

   dock, 
  those 
  from 
  the 
  upper 
  yard 
  going 
  on 
  the 
  gravity 
  plane. 
  The 
  

   tempering 
  sand 
  is 
  discharged 
  by 
  the 
  shovel 
  into 
  small 
  cars, 
  which 
  

   are 
  drawn 
  up 
  an 
  incline 
  to 
  the 
  top 
  of 
  a 
  framework 
  and 
  dumped, 
  

   the 
  sand 
  falling 
  through 
  a 
  series 
  of 
  screens 
  into 
  cars 
  below. 
  

  

  The 
  Croton 
  brick 
  cO'. 
  has 
  two 
  yards, 
  an 
  open 
  and 
  a 
  pallet 
  yard; 
  

   and 
  obtains 
  all 
  its 
  clay 
  from 
  the 
  river 
  with 
  a 
  scoop 
  dredge. 
  It 
  is 
  

   dumped 
  into 
  cars 
  on 
  a 
  scow, 
  which, 
  when 
  full, 
  are 
  run 
  up 
  an 
  in- 
  

   clined 
  plane 
  on 
  the 
  shore 
  and 
  dumped. 
  The 
  clay 
  is 
  thus 
  exposed 
  to 
  

   the 
  weather 
  for 
  several 
  months 
  before 
  it 
  is 
  used. 
  It 
  costs 
  about 
  

   15c 
  a 
  cubic 
  yard 
  to 
  deliver 
  the 
  clay 
  on 
  shore 
  and 
  10c 
  a 
  cubic 
  yard 
  

   to 
  haul 
  it 
  to 
  the 
  pits. 
  Tempering 
  sand 
  is 
  obtained 
  from 
  the 
  escarp- 
  

   ment 
  of 
  the 
  delta 
  terrace 
  just 
  south 
  of 
  the 
  yard. 
  At 
  the 
  pallet 
  

   yard 
  they 
  use 
  a 
  hand 
  machine 
  to 
  square 
  the 
  green 
  bricks 
  on 
  the 
  

   racks, 
  that 
  consists 
  of 
  two 
  plates 
  of 
  steel, 
  attached 
  to 
  which, 
  at 
  right 
  

   angles 
  and 
  on 
  the 
  same 
  side 
  of 
  the 
  plates, 
  are 
  12 
  smaller 
  ones, 
  4 
  

   inches 
  high. 
  Attached 
  to 
  the 
  large 
  plates 
  are 
  two 
  handles. 
  The 
  

   two 
  large 
  plates 
  slide 
  back 
  and 
  forth 
  on 
  each 
  other 
  and 
  so 
  that 
  the 
  

   small 
  plates 
  can 
  be 
  brought 
  together. 
  This 
  machine 
  is 
  set 
  on 
  six 
  

  

  