﻿404 
  

  

  SUNDRY 
  IMPROVEMENTS 
  IN 
  

  

  ENGRAVING 
  AND 
  DESCRIPTION 
  OF 
  VOLTAIC 
  SERIES, 
  COMBINING 
  THE 
  

   ADVANTAGES 
  OF 
  THE 
  TROUGH 
  OF 
  CRUICKSHANK 
  WITH 
  THOSE 
  OF 
  

   THE 
  DEFLAGRATOR. 
  

  

  Fi». 
  1. 
  

  

  Galvanic 
  Deflagrator 
  of 
  one 
  hundred 
  pairs, 
  of 
  fourteen 
  inches 
  by 
  eight. 
  

  

  Fig. 
  1 
  represents 
  a 
  voltaic 
  series, 
  upon 
  the 
  plan 
  of 
  the 
  trough 
  

   of 
  Cruickshank, 
  associated 
  with 
  another 
  trough 
  destitute 
  of 
  plates, 
  

   and 
  of 
  a 
  capacity 
  sufficient 
  to 
  hold 
  all 
  the 
  acid 
  necessary 
  for 
  an 
  ample 
  

   charge. 
  The 
  trough 
  containing 
  the 
  series 
  is 
  joined 
  to 
  the 
  other 
  

   lengthwise, 
  edge 
  to 
  edge, 
  so 
  that 
  when 
  the 
  sides 
  of 
  the 
  one 
  are 
  verti- 
  

   cal, 
  those 
  of 
  the 
  other 
  must 
  be 
  horizontal. 
  The 
  advantage 
  of 
  this 
  

   arrangement 
  is, 
  that 
  by 
  a 
  partial 
  revolution 
  of 
  the 
  two 
  troughs, 
  thus 
  

   united, 
  upon 
  pivots 
  which 
  support 
  them 
  at 
  the 
  ends, 
  any 
  fluid 
  which 
  

   maybe 
  in 
  one 
  trough 
  must 
  flow 
  into 
  the 
  other; 
  and, 
  reversing 
  the 
  

   movement, 
  must 
  flow 
  back 
  again. 
  The 
  galvanic 
  series 
  being 
  placed 
  

   in 
  one 
  of 
  the 
  troughs, 
  the 
  acid 
  in 
  the 
  other, 
  by 
  a 
  movement 
  such 
  as 
  

   above 
  described, 
  the 
  plates 
  may 
  all 
  be 
  instantaneously 
  subjected 
  to 
  the 
  

   acid, 
  or 
  relieved 
  from 
  it. 
  The 
  pivots 
  are 
  made 
  of 
  iron, 
  coated 
  with 
  

   brass 
  or 
  copper, 
  as 
  less 
  liable 
  to 
  oxidizement. 
  A 
  metallic 
  communi- 
  

   cation 
  is 
  made 
  between 
  the 
  coating 
  of 
  the 
  pivots, 
  and 
  the 
  galvanic 
  se- 
  

   ries 
  within. 
  In 
  order 
  to 
  produce 
  a 
  connexion 
  between 
  one 
  recipient 
  

   of 
  this 
  description 
  and 
  another, 
  it 
  is 
  only 
  necessary 
  to 
  allow 
  a 
  pivot 
  of 
  

  

  