﻿666 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  pipes, 
  only 
  two 
  of 
  which 
  are 
  in 
  use 
  at 
  present. 
  These 
  pipes 
  are 
  

   joined, 
  by 
  means 
  of 
  a 
  cast 
  iron 
  Y, 
  into 
  a 
  7-foot 
  penstock. 
  The 
  

   penstock 
  is 
  3700 
  feet 
  long, 
  and 
  for 
  2700 
  feet 
  is 
  constructed 
  of 
  

   pine 
  staves 
  banded 
  with 
  %-inch 
  round 
  steel 
  bands. 
  These 
  bands 
  

   are 
  about 
  6 
  inches 
  apart. 
  The 
  balance 
  of 
  the 
  penstock 
  of 
  about 
  

   1000 
  feet 
  is 
  constructed 
  of 
  steel 
  varying 
  in 
  thickness 
  % 
  inch 
  to 
  

   % 
  inch; 
  250 
  feet 
  from 
  the 
  end 
  of 
  the 
  penstock 
  there 
  is 
  a 
  stand- 
  

   pipe 
  180 
  feet 
  high. 
  When 
  there 
  is 
  no 
  load 
  on 
  the 
  plant 
  the 
  water 
  

   rises 
  150 
  feet 
  high 
  in 
  this 
  pipe, 
  but 
  falls 
  from 
  10 
  to 
  15 
  feet 
  as 
  

   the 
  load 
  varies. 
  The 
  penstock 
  leads 
  into 
  a 
  receiver 
  from 
  which 
  are 
  

   taken 
  four 
  48-inch 
  and 
  two 
  12-inch 
  pipes. 
  Each 
  of 
  the 
  48-inch 
  

   pipes 
  supplies 
  an 
  1800-horsepower 
  outward 
  flow 
  reaction 
  turbine, 
  

   with 
  vertical 
  shaft. 
  A 
  1000 
  kilowatt 
  alternating 
  current 
  genera- 
  

   tor, 
  running 
  at 
  360 
  revolutions 
  per 
  minute, 
  is 
  connected 
  to 
  this 
  

   shaft. 
  Each 
  of 
  the 
  12-inch 
  pipes 
  supplies 
  a 
  110-horsepower 
  

   turbine, 
  with 
  vertical 
  shaft 
  direct 
  connected 
  to 
  the 
  armature 
  of 
  a 
  

   75-kilowatt 
  direct 
  current 
  generator, 
  running 
  at 
  750 
  revolutions 
  

   per 
  minute. 
  The 
  total 
  head 
  is 
  265 
  feet, 
  and 
  the 
  maximum 
  load 
  

   carried 
  during 
  the 
  winter 
  of 
  1904 
  was 
  7600 
  horsepower. 
  The 
  cur- 
  

   rent 
  is 
  transmitted 
  at 
  22,000 
  volts 
  to 
  Utica, 
  12y 
  2 
  miles 
  distant. 
  

   The 
  usual 
  step-up 
  and 
  step-down 
  transformers 
  are 
  included. 
  This 
  

   plant 
  was 
  designed 
  by 
  Win. 
  A. 
  Brackenridge. 
  

  

  Power 
  Development 
  on 
  Raquette 
  River 
  

  

  Hannawa 
  Falls 
  Water 
  Power 
  Company. 
  There 
  is 
  an 
  im- 
  

   portant 
  power 
  development 
  at 
  Hannawa 
  Falls 
  on 
  Raquette 
  river, 
  

   where 
  the 
  catchment 
  area 
  is 
  967 
  square 
  miles. 
  This 
  stream 
  has 
  a 
  

   fall 
  of 
  nearly 
  300 
  feet 
  in 
  three 
  miles 
  of 
  its 
  course 
  below 
  the 
  vil- 
  

   lage 
  of 
  Colton, 
  and 
  a 
  further 
  fall 
  of 
  85 
  feet 
  in 
  the 
  next 
  two 
  miles 
  

   of 
  its 
  course. 
  

  

  The 
  land 
  and 
  water 
  rights 
  along 
  this 
  part 
  of 
  the 
  river 
  have 
  been 
  

   acquired 
  by 
  the 
  Hannawa 
  Falls 
  Water 
  Power 
  Company, 
  who 
  have 
  

   developed 
  the 
  lower 
  85-foot 
  fall. 
  A 
  masonry 
  dam 
  has 
  been 
  built 
  

   at 
  the 
  village 
  of 
  Hannawa 
  Falls, 
  forming 
  a 
  pond 
  2% 
  miles 
  long 
  

   and 
  covering 
  200 
  acres. 
  From 
  this 
  pond 
  the 
  water 
  is 
  conducted 
  

   by 
  a 
  canal 
  2700 
  feet 
  long 
  as 
  a 
  forebay, 
  thence 
  by 
  penstocks 
  to 
  the 
  

   wheels. 
  The 
  tailrace 
  extends 
  2000 
  feet 
  from 
  the 
  power-house, 
  

   being 
  separated 
  from 
  the 
  Raquette 
  river 
  by 
  an 
  embankment 
  of 
  

   earth 
  and 
  stone. 
  At 
  the 
  point 
  selected 
  for 
  the 
  dam 
  the 
  bed 
  of 
  

  

  