﻿. 
  [29] 
  PATENTS 
  ISSUED 
  RELATING 
  TO 
  FISH 
  AND 
  FISHERIES. 
  100P> 
  

  

  and 
  thimble 
  C, 
  to 
  incase 
  the 
  said 
  shaft 
  and 
  hooks, 
  and 
  the 
  nnt 
  t, 
  work- 
  

   ing 
  on 
  the 
  said 
  screw-threads, 
  as 
  and 
  for 
  the 
  purpose 
  described. 
  

  

  " 
  2. 
  In 
  a 
  device 
  for 
  fishing, 
  a 
  spoon 
  provided 
  with 
  a 
  fin 
  secured 
  by 
  

   its 
  edge 
  to 
  one 
  face 
  of 
  the 
  spoon, 
  at 
  an 
  angle 
  to 
  the 
  axial 
  line 
  thereof, 
  

   whereby 
  a 
  progressive 
  motion 
  of 
  the 
  spoon 
  through 
  the 
  water 
  causes 
  it 
  

   to 
  rotate, 
  substantially 
  as 
  described. 
  

  

  " 
  3. 
  In 
  combination 
  with 
  a 
  shaft 
  or 
  holder 
  for 
  the 
  hooks, 
  the 
  trolliug- 
  

   spoon 
  D, 
  provided 
  with 
  a 
  projection, 
  r, 
  or 
  similar 
  device, 
  and 
  the 
  spring 
  

   o, 
  to 
  embrace 
  the 
  shaft 
  or 
  holder 
  A 
  and 
  the 
  said 
  projection, 
  having 
  its 
  

   ends 
  detachably 
  secured 
  to 
  the 
  said 
  spoon, 
  substantially 
  as 
  described. 
  

  

  " 
  4. 
  In 
  combination 
  with 
  a 
  trolling-spoou, 
  the 
  fin 
  E, 
  hinged 
  at 
  one 
  

   edge 
  to 
  one 
  face 
  of 
  the 
  spoon, 
  at 
  an 
  angle 
  with 
  the 
  axial 
  line 
  of 
  the 
  

   same, 
  and 
  a 
  spring 
  to 
  hold 
  the 
  said 
  fin 
  at 
  an 
  angle 
  with 
  the 
  face 
  of 
  the 
  

   spoon 
  when 
  acted 
  against 
  by 
  the 
  water, 
  substantially 
  as 
  described. 
  

  

  " 
  5. 
  In 
  combination 
  with 
  a 
  trolling-spoon, 
  D, 
  fin 
  E, 
  hinged 
  in 
  an 
  

   oblique 
  position 
  to 
  one 
  face 
  of 
  the 
  said 
  spoon, 
  spring 
  m, 
  secured 
  to 
  the 
  

   opposite 
  face 
  and 
  passing 
  through 
  an 
  opening 
  in 
  the 
  said 
  spoon, 
  to 
  

   maintain 
  the 
  fin 
  at 
  an 
  angle 
  to 
  the 
  spoon 
  in 
  opposition 
  to 
  the 
  passage 
  

   of 
  the 
  water, 
  and 
  mechanism 
  for 
  connecting 
  the 
  said 
  spoon 
  to 
  the 
  shaft 
  

   or 
  holder 
  for 
  the 
  hooks, 
  substantially 
  as 
  described." 
  

  

  No. 
  295350. 
  

  

  (William 
  Dudley 
  Chapman, 
  Theresa, 
  N. 
  Y. 
  ; 
  patented 
  March 
  18, 
  1884; 
  artificial 
  fish- 
  

   bait. 
  See 
  Plate 
  XXXV.) 
  

  

  This 
  invention 
  relates 
  to 
  revolving 
  metallic 
  bait 
  used 
  in 
  trolling 
  for 
  

   fish, 
  or 
  so-called 
  "minnow-propellers;" 
  and 
  it 
  consists 
  in 
  an 
  improve- 
  

   ment 
  upon 
  the 
  minnow-propeller, 
  for 
  which 
  a 
  patent 
  was 
  granted 
  this 
  

   inventor 
  July 
  5, 
  1870, 
  No. 
  104930. 
  Two 
  corresponding 
  plates 
  of 
  silver- 
  

   plated 
  or 
  nickel-plated 
  sheet 
  metal 
  are 
  cut 
  of 
  the 
  shape 
  shown 
  in 
  the 
  

   drawings, 
  each 
  plate 
  being 
  gradually 
  enlarged 
  toward 
  its 
  rear 
  end, 
  

   where 
  it 
  is 
  provided 
  with 
  a 
  series 
  of 
  notches. 
  At 
  their 
  upper 
  reduced 
  

   ends 
  these 
  plates 
  are 
  fastened 
  upon 
  a 
  small 
  metallic 
  tube. 
  They 
  are 
  

   then 
  bent 
  around 
  said 
  tube 
  in 
  opposite 
  directions, 
  and 
  again 
  fastened 
  

   to 
  it 
  near 
  its 
  lower 
  end. 
  An 
  open 
  space 
  is 
  left 
  on 
  opposite 
  sides 
  of 
  

   the 
  central 
  rod 
  or 
  tube, 
  whereas 
  in 
  the 
  minnow 
  propeller 
  shown 
  and 
  

   described 
  in 
  patent 
  No. 
  1 
  049.30 
  the 
  contiguous 
  concave 
  faces 
  of 
  the 
  two 
  

   plates 
  are 
  secured 
  together 
  the 
  greater 
  portion 
  of 
  their 
  length. 
  By 
  the 
  

   improved 
  construction 
  not 
  only 
  is 
  the 
  resistance 
  of 
  the 
  water 
  reduced 
  

   when 
  the 
  device 
  is 
  used 
  for 
  trolling, 
  inasmuch 
  as 
  the 
  water 
  will 
  pass 
  

   between 
  the 
  central 
  tubular 
  rod 
  and 
  the 
  openings 
  or 
  water-ways 
  on 
  

   both 
  sides 
  of 
  the 
  same, 
  but 
  the 
  device 
  will 
  revolve 
  with 
  greater 
  speed 
  

   and 
  regularity 
  than 
  the 
  old 
  one, 
  without 
  reducing 
  its 
  strength 
  or 
  in- 
  

   creasing 
  the 
  cost 
  of 
  manufacture. 
  That 
  part 
  of 
  the 
  tubular 
  stem 
  which 
  

   is 
  between 
  the 
  points 
  of 
  attachment 
  of 
  the 
  plates 
  is 
  wrapped 
  with 
  foil, 
  

   which 
  is 
  held 
  in 
  place 
  by 
  silk 
  cord 
  of 
  variegated 
  colors, 
  or 
  fine 
  wire 
  

  

  