Patent GB-709494-A (GB)
Title: Improvements in textile treating apparatus and methods
IPC: D06B5/00
Filed: 1952-02-19
Abstract: Textile material, such as nylon staple, is placed in a sealed chamber and subjected to a gaseous treating medium under pressure followed by suction several times in alternation.  Three canisters 45, loaded with textile to be treated are mounted on a carriage 37, Fig. 1, on a fixed track 31 while a second set of canisters 45 containing treated material stands on a carriage 38 on a movable track 35, Fig. 2.  Upon operation of the start button 106, Fig. 14, relay 87 operates and locks up followed by time delay relay 85 which causes relay 88 to operate so that relay 92 closes to cause the conveyer motor 85 to run.  The motor 65, through reduction gearing 64 rotates pinion 62 engaging rack 59 to drive the carriages 37, 38 to the right, the rack bar 59 carrying arms 55, 56 with pegs 52, 53 which engage in sockets 50, 51 at the base of the carriages.  The arm 55, Fig. 10, carries a roller projection 67 riding on an auxiliary rail 69 which drops near the centre so that the peg 52 falls away from the socket 50.  When the carriage 37 moves, a limit switch 104 changes over causing relays 88, 85 to release and relay 89 to operate.  The carriage 37 passes on to the movable track 35 and carriage 38 on to the fixed track 32 and at the end of its travel causes limit switch 105 to changeover thereby releasing relay 92 which results in relay 90 closing to make the door motor 7 run.  The door motor 7 through gearing 6 drives a rack and pinion 5 to close the door 2 of the treatment chamber 1.  As the door starts to move, a safety switch 115 and limit switch 102 opens and when the door is fully closed a second limit switch 103 changes over so that relays 89, 90 release to stop motor 7 and complete a circuit for timer 83.  The timer motor is set in motion and contacts 95 close to operate solenoid 23, Fig. 32, to pass live steam from main 15 to ejector 25 to exhaust the chamber 1, valve 13 in the outlet main 27 closing due to suction.  After two minutes, contacts 95 open and 96 close, valve 23 being restored and 17 operated to blow steam into the chamber, the bellows 28 closing the exit valve, Fig. 33 (not shown).  The pressure opens the switch 113 to prevent the door being opened.  After three minutes, contacts 96 open and valve 17 restores the steam passing out through pipes 21, 22, Fig. 34 (not shown).  The chamber is again exhausted, Fig. 32, when contacts 97 are bridged and the process is repeated by closing or opening of contacts 97, 98 and 99.  When contacts 99 open valve 23 is released and the chamber is vented.  Closure of contacts 100 cause relay 91 to operate to complete a circuit for the reversal of motor 7, the changeover of door switch 103 stopping the timer 83. When door 2 is fully open, door switch 102 closes to release relay 91, stop the door motor 7, the safety switch closing to cause relay 85 to operate after a time delay of three minutes when relay 88 closes to start the new cycle.  Relay 93 operates and motor 65 reverses limit switch 105 changing over so that relays 88, 85 release and cause 89 to pull up. The carriages 37, 38 run back to their original position, limit switch 104 changing over which causes relay 93 to release and motor 65 to stop.  The chamber 1 is heated by steam passing through radiator coils 8.  Semi-automatic operation.  Switch 108 is changed over thus rendering time delay relay 85 ineffective.  Upon button 106 being pressed relay 87 locks up, the pressing of button 109 causing relays 88 and 92 to operate and motor 65 to run.  When limit switch 104 releases, relay 88 falls away followed by relay 89 pulling up as, the end of the travel of the carriages, limit switch 105 changes over releasing relay 92 and the motor 65 stops. The operation proceeds as for the fully automatic operation until the <PICT:0709494/IV(c)/1> <PICT:0709494/IV(c)/2> <PICT:0709494/IV(c)/3> <PICT:0709494/IV(c)/4> <PICT:0709494/IV(c)/5> <PICT:0709494/IV(c)/6> <PICT:0709494/IV(c)/7> door motor stops, after the treatment of the textile with the carriages 37, 38 in the right-hand positions, Fig. 38 (not shown). Button 110 is pressed to take the next batch through a treating cycle, relays 88, 93 operate to cause motor 65 to run in the reverse direction, the changeover of switch 105 causing relay 88 to release and 89 to operate when switch 104 changes over, the release of relay 93 stopping motor 65.  Relay 90 operates to close the circuit for door motor 7.  The operation proceeds as previously described, the cycle ending with the door in the open position.