﻿1076 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [102] 
  

  

  great 
  pressure 
  Las 
  to 
  be 
  exerted 
  to 
  force 
  the 
  meat 
  or 
  fish 
  into 
  the 
  die, 
  

   while 
  all 
  of 
  the 
  machines 
  heretofore 
  constructed^for 
  filling 
  cans 
  employ 
  

   springs, 
  and 
  are, 
  it 
  is 
  said, 
  generally 
  complicated 
  and 
  liable 
  to 
  get 
  out 
  

   of 
  order 
  on 
  account 
  of 
  the 
  great 
  variety 
  of 
  irregular 
  movements 
  nec- 
  

   essarily 
  imparted 
  to 
  the 
  different 
  portions 
  of 
  the 
  mechanism. 
  This 
  in- 
  

   vention 
  has 
  for 
  its 
  object 
  to 
  overcome 
  all 
  of 
  these 
  difficulties 
  ; 
  and 
  it 
  

   consists 
  in 
  the 
  combination, 
  with 
  the 
  chute, 
  of 
  a 
  pair 
  of 
  semi-cylin- 
  

   drical 
  knives 
  or 
  cutters 
  so 
  pivoted 
  together 
  as 
  to 
  open 
  and 
  close 
  in 
  the 
  

   arc 
  of 
  a 
  circle 
  having 
  its 
  center 
  in 
  or 
  near 
  the 
  line 
  of 
  their 
  circumfer- 
  

   ence, 
  whereby 
  they 
  are 
  adapted, 
  when 
  open, 
  to 
  receive 
  the 
  material 
  from 
  

   the 
  chute, 
  and 
  when 
  closing 
  or 
  advancing 
  toward 
  each 
  other 
  to 
  gather 
  to- 
  

   gether, 
  cut 
  off, 
  and 
  firmly 
  compress 
  the 
  material 
  received 
  from 
  the 
  chute 
  

   and 
  properly 
  shape 
  it 
  to 
  fit 
  the 
  can 
  to 
  be 
  filled, 
  thus 
  dispensing 
  with 
  the 
  

   heavy 
  pressure 
  heretofore 
  required 
  to 
  force 
  the 
  material 
  from 
  the 
  chute 
  

   to 
  the 
  cutters; 
  also 
  in 
  the 
  combination, 
  with 
  the 
  chute 
  and 
  a 
  pair 
  of 
  seini- 
  

   cylindrical 
  shaping 
  and 
  compressing 
  cutters, 
  constructed 
  and 
  operating 
  

   as 
  described, 
  of 
  levers 
  secured 
  to 
  said 
  cutters 
  and 
  actuated 
  by 
  cams; 
  

   also 
  in 
  the 
  combination, 
  with 
  a 
  pair 
  of 
  semi-cylindrical 
  shaping 
  and 
  

   compressing 
  cutters 
  so 
  pivoted 
  or 
  hinged 
  together 
  as 
  to 
  open 
  and 
  close 
  

   in 
  the 
  arc 
  of 
  a 
  circle 
  having 
  its 
  center 
  in 
  or 
  near 
  the 
  line 
  of 
  their 
  cir- 
  

   cumference, 
  and 
  form 
  when 
  closed 
  a 
  true 
  cylinder, 
  of 
  a 
  reciprocating 
  

   piston 
  or 
  plunger 
  adapted 
  to 
  accurately 
  fit 
  within 
  the 
  space 
  or 
  chamber 
  

   formed 
  by 
  the 
  said 
  cutters 
  when 
  closed, 
  and 
  thereby 
  insure 
  the 
  dis- 
  

   charge 
  of 
  the 
  entire 
  contents 
  of 
  the 
  chamber, 
  whereby 
  the 
  machine 
  is 
  

   prevented 
  from 
  becoming 
  clogged 
  by 
  the 
  introduction 
  of 
  any 
  portion 
  of 
  

   the 
  material 
  in 
  the 
  chamber 
  between 
  the 
  piston 
  and 
  the 
  inner 
  surfaces 
  

   of 
  the 
  cutters; 
  also 
  in 
  providing 
  the 
  piston 
  or 
  plunger 
  with 
  an 
  auto- 
  

   matic 
  vacuum-valve 
  for 
  admitting 
  air 
  into 
  the 
  chamber 
  in 
  which 
  the 
  

   meat 
  or 
  fish 
  is 
  compressed, 
  for 
  the 
  purpose 
  of 
  preventing 
  the 
  formation 
  

   of 
  a 
  vacuum 
  therein 
  on 
  the 
  withdrawal 
  of 
  the 
  piston 
  ; 
  also 
  in 
  the 
  com- 
  

   bination, 
  with 
  the 
  semi-cylindrical 
  shaping 
  and 
  compressing 
  cutters, 
  

   constructed 
  and 
  operating 
  as 
  described, 
  and 
  the 
  casing 
  and 
  chute, 
  of 
  

   a. 
  reciprocating 
  piston 
  or 
  plunger 
  actuated 
  by 
  certain 
  mechanism, 
  as 
  

   hereinafter 
  set 
  forth, 
  whereby 
  the 
  machine 
  is 
  simplified 
  and 
  rendered 
  

   more 
  durable 
  and 
  effective 
  in 
  its 
  operation 
  ; 
  also 
  in 
  the 
  combination, 
  

   with 
  the 
  reciprocating 
  piston 
  and 
  its 
  actuating 
  mechanism, 
  of 
  certain 
  

   mechanism 
  for 
  operating 
  the 
  semi-cylindrical 
  cutters, 
  so 
  constructed 
  

   and 
  connected 
  as 
  to 
  cause 
  the 
  cutters 
  to 
  be 
  entirely 
  closed 
  to 
  form 
  a 
  

   true 
  cylinder 
  before 
  or 
  immediately 
  after 
  the 
  piston 
  reaches 
  them 
  on 
  its 
  

   forward 
  stroke; 
  also 
  in 
  supporting 
  the 
  can 
  upon 
  a 
  series 
  of 
  bars 
  of 
  \J 
  

   or 
  V 
  shape 
  in 
  cross 
  section, 
  so 
  arranged 
  as 
  to 
  form 
  exit-passages 
  for 
  

   the 
  escape 
  of 
  the 
  air 
  from 
  the 
  can 
  while 
  it 
  is 
  being 
  filled 
  ; 
  also 
  in 
  secur- 
  

   ing 
  the 
  can-supporting 
  bars 
  to 
  a 
  removable 
  ring 
  attached 
  to 
  the 
  front 
  

   of 
  the 
  casing, 
  said 
  ring 
  forming 
  a 
  guide 
  for 
  the 
  sliding-gate, 
  which 
  

   closes 
  one 
  end 
  of 
  the 
  chamber 
  in 
  which 
  the 
  meat 
  or 
  fish 
  is 
  compressed, 
  

  

  