﻿20 
  MENHADEN 
  INDUSTRY 
  OF 
  THE 
  ATLANTIC 
  COAST. 
  

  

  through 
  the 
  hot 
  furnace 
  gases. 
  The 
  wet 
  scrap 
  and 
  the 
  gases 
  enter 
  

   the 
  cyUnder 
  at 
  the 
  same 
  end, 
  thus 
  giving 
  the 
  wettest 
  scrap 
  the 
  

   advantage 
  of 
  coming 
  in 
  contact 
  with 
  the 
  hottest 
  gases 
  and 
  materially 
  

   economizing 
  both 
  fuel 
  and 
  time. 
  The 
  cylinder 
  is 
  encircled 
  by 
  two 
  

   steel 
  tires, 
  which 
  are 
  securely 
  fastened 
  to 
  it, 
  each 
  resting 
  on 
  a 
  set 
  of 
  

   four 
  steel 
  rollers, 
  which 
  in 
  turn 
  rest 
  on 
  brick 
  foundations. 
  

  

  The 
  power 
  for 
  rotating 
  the 
  drier 
  is 
  imparted 
  first 
  to 
  these 
  rollers 
  by 
  

   means 
  of 
  a 
  shaft 
  and 
  from 
  them 
  by 
  friction 
  to 
  the 
  tires, 
  or 
  by 
  the 
  use 
  

   of 
  a 
  spur 
  pinion 
  meshing 
  with 
  a 
  large 
  spur-gear 
  ring 
  encircluig 
  the 
  

   drier. 
  The 
  brick 
  furnace, 
  which 
  is 
  provided 
  with 
  an 
  automatic 
  

   stoker, 
  consumes 
  about 
  5 
  tons 
  of 
  coal 
  a 
  day; 
  its 
  size 
  is 
  9 
  by 
  10 
  feet, 
  

   and 
  it 
  is 
  built 
  about 
  the 
  front 
  or 
  feed 
  end 
  of 
  the 
  drier, 
  which 
  is 
  set 
  

   about 
  9 
  uiches 
  higher 
  at 
  this 
  point 
  than 
  at 
  the 
  other 
  end, 
  so 
  that 
  the 
  

   trend 
  of 
  the 
  scrap 
  will 
  be 
  toward 
  the 
  lower 
  and 
  discharge 
  end, 
  as- 
  

   sisted, 
  of 
  course, 
  by 
  the 
  forced 
  draft 
  which 
  blows 
  it 
  through 
  as 
  the 
  

   fhghts 
  referred 
  to 
  above 
  lift 
  it 
  as 
  the 
  cylinder 
  revolves. 
  The 
  lower 
  

   end 
  enters 
  a 
  brick 
  chimney-like 
  chamber 
  8 
  feet 
  wide 
  by 
  12 
  feet 
  long; 
  

   this 
  serves 
  as 
  an 
  outlet 
  for 
  the 
  hot 
  air 
  and 
  the 
  vapor 
  and 
  also 
  as 
  a 
  

   settling 
  chamber 
  for 
  the 
  dust 
  coming 
  from 
  the 
  dried 
  scrap. 
  A 
  drier, 
  

   5^ 
  feet 
  in 
  diameter 
  and 
  40 
  feet 
  long, 
  with 
  a 
  capacity 
  of 
  600,000 
  fish 
  

   per 
  hour, 
  costs 
  $2,300; 
  one 
  50 
  feet 
  long, 
  with 
  a 
  capacity 
  of 
  80,000 
  

   fish 
  per 
  hour, 
  costs 
  $2,600, 
  exclusive 
  of 
  the 
  brickwork 
  of 
  the 
  furnace 
  

   and 
  chimney, 
  which 
  costs 
  about 
  $350, 
  and 
  an 
  engine 
  of 
  about 
  25 
  

   horsepower 
  to 
  run 
  it. 
  It 
  is 
  necessary 
  to 
  give 
  close 
  attention 
  during 
  

   the 
  operation 
  of 
  the 
  hot-air 
  drier 
  in 
  order 
  to 
  guard 
  against 
  burning 
  

   the 
  scrap 
  by 
  havmg 
  too 
  much 
  heat 
  and 
  also 
  to 
  keep 
  heat 
  enough 
  to 
  

   dry 
  it 
  thoroughly. 
  It 
  is 
  sometimes 
  necessary 
  to 
  run 
  it 
  through 
  the 
  

   second 
  time 
  if 
  the 
  first 
  passage 
  is 
  too 
  rapid. 
  The 
  scrap 
  dried 
  by 
  this 
  

   process 
  is 
  much 
  darker 
  in 
  color 
  than 
  that 
  dried 
  on 
  platforms, 
  no 
  

   doubt 
  because 
  it 
  is 
  somewhat 
  scorched 
  by 
  the 
  intense 
  heat 
  of 
  the 
  

   furnace. 
  

  

  The 
  scrap 
  drops 
  from 
  the 
  drier 
  into 
  a 
  screw 
  conveyor, 
  which 
  passes 
  

   through 
  the 
  wall 
  of 
  the 
  chimney, 
  and 
  is 
  taken 
  up 
  by 
  a 
  chain 
  conveyor 
  

   to 
  be 
  carried 
  to 
  the 
  scrap 
  room. 
  The 
  box 
  in 
  which 
  this 
  conveyor 
  

   moves 
  is 
  usually 
  placed 
  close 
  under 
  the 
  roof 
  of 
  the 
  building 
  and 
  is 
  

   provided 
  with 
  traps 
  or 
  shdes 
  which 
  may 
  be 
  drawn 
  and 
  the 
  scrap 
  

   deposited 
  in 
  any 
  part 
  of 
  the 
  room 
  desired. 
  Twelve 
  thousand 
  to 
  

   fifteen 
  thousand 
  fish 
  will 
  make 
  1 
  ton 
  of 
  scrap; 
  the 
  quantity 
  made 
  

   from 
  one 
  milhon 
  fish 
  varies 
  from 
  75 
  to 
  85 
  tons. 
  

  

  Fish 
  scrap 
  is 
  used 
  almost 
  entirely 
  for 
  fertilizing 
  purposes; 
  a 
  negli- 
  

   gible 
  quantity 
  may 
  be 
  used 
  for 
  chicken 
  feed 
  and 
  as 
  cattle 
  food. 
  The 
  

   major 
  portion 
  is 
  sold 
  to 
  the 
  fertihzer 
  mixing 
  plants 
  at 
  various 
  places, 
  

   a 
  large 
  percentage 
  being 
  handled 
  by 
  the 
  Baltimore 
  dealers. 
  Samples 
  

   are 
  sent 
  to 
  the 
  prospective 
  purchasers, 
  who 
  analyze 
  it 
  and 
  fix 
  the 
  

   price 
  according 
  to 
  the 
  percentage 
  of 
  ammonia 
  contained 
  in 
  it, 
  which 
  

  

  