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    Hl-H3 will  be  actuated by the studs  133 when the latter are shifted to the posi tions  3—_g  respectively.  Accordingly,  stockings  of  one nominal  length (which  may  vary  to the extentof  %  inch) but having different heel heights will  be sorted and dis charged respectively into the receptacles R1, R2  and R3. Slightly  shorter  stockings  alike  ‘as  to length  but having heels of different heights will be discharged respectively into  the next three  receptacles  R4,  R5 and R6 and so on, the shortest ones being discharged into  the  receptacles R10,  R11 and  R12.  Real  short  stockings  beyond the reach  of movement of the  sensing eye  40 will  be dis charged into the  last  receptacle R13 when the rear lugs 29a of the  trays  supporting such stocking reach the last of the notches 52 and 152 in the rails 22 and 122 which notches, it  will be noted from Fig. 4 are without slides. As the trays  move forward along the bottom of thema chine toward the feeding end of the latter,  the studs  33 and  ‘133 on  them are gradually restored to their normally retracted positions by  engagement  with the inclined  edges of the cam rails  86 and 186 after the manner shown of one  of  the studs  33  in  Fig. 8. To prepare the machine for sorting stockings accord ing  to  length only,  the  selector  switch 94 is  set  to the position L,  and the gang switch 125 is clsoed as shown in  Fig.  18.  By th-us  setting  the  switch  94,  the  circuit containing  the  heel  scanning eye  140,  the  coils  of  the magnetic valve  147 and the relay 193 is  opened to pre vent  said  eye  from functioning.  .(For the sake of sim plicity  of illustration,  the  eye  140 and ‘associated parts have been omitted from Fig.  18.)  Under  the conditions just  explained,  the  studs  133 on the  trays  will  remain idle  in  their  normal retracted positions.  _However,  the other studs 33 on the various trays will be shifted under control of  the  length  scanning eye  40 to  the positions a,  b,  c or d for the ultimate action of the ?rst switches of  the  groups L1,  L2,  L3 and L4 depending upon the lengths  of the stockings  which will  be dropped into the receptacles  R1, R4, R7 and R10, the valves  162 corre sponding  to the magnetic  valves 62 actuated through  clos ing of said ?rst switches of the respective groups L1-L4 being  concurrently  actuated  due to  the  bridging of the conductors 126,  127 by the  gang switch 125,  the corre sponding slides 52 and  152  being thereby withdrawn  from the voids ‘53  and  153 in the rails 22 and 122 at opposite sides of the machine for release of the trays in a  manner already understood. To prepare the machine for sorting stockings  accord ing to  heel height  only,  the  gang switch  125 is  closed and the selector switch 94 is  set to H  position as in Fig. 19 as a result  of which the ‘scanning eye 40 is  rendered inoperative  together  with  the  parts  controlled  thereby, the showing of the latter elements having therefore been omitted  from Fig.  19.  ‘Under  these  circumstances  the studs  33  on the  trays  will  be  unaffected  and  remain idle  in their normal retracted positions.  The studs  133 on the  successive  trays  will  however be shifted  to  the positions  e,  f  or  g for  the  ultimate  actuation  of  the switches  of the ?rst  group H1, H2 and H3 depending on  the  heel  heights  of  the  stockings  which  will  ‘be dropped into either  the ?rst, second or third receptacles R1, R2 and R3, the  magnetic valves  62 corresponding to  the magnetic valves  ‘162  actuated  through closing of the  switches  H1, H2 and  H3 being concurrently  actu
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