Patent GB-458302-A (GB)
Title: Improvements in machines for opening and cleaning wool and other like fibres and materials
IPC: D01G9/00
Filed: 1935-11-29
Abstract: 458,302. Opening and cleaning wool &c. HADDAN, P., 31, Bedford Street, Strand, London.-(Fitger California Co. ; 530, West 6th Street, Los Angeles, U.S.A.) Nov. 29, 1935, No. 14878/36. Divided out of 458,292. [Class 120 (i)] A machine for opening and cleaning wool and other like fibres and materials, having a screen or grid chamber 4, 6, Fig. 1, and a beater 2 rotating therein, e.g. as described in Specification 458,292, is provided with operational means independent of the beater rotating means for feeding material into the chamber and for opening and closing the discharge outlet whereby the length of time material is retained in the chamber may be varied without changing the lengths of the times required for the operations of feeding and discharging. The material is fed into the machine by a conveyer 12 having co-operating rollers 12<a>, 12b and, after beating, is discharged through a door 5 mounted on a rock-shaft 5<b>. The beater 2 is driven by a belt 100 from an electric motor 101, Fig. 2. The feed conveyer 12 is driven intermittently from a motor 111 through a train of gearing including a constantly driven shaft 109, a magnetic clutch 107, 108, gearing 106, 105, 104 and a belt 102. The floating clutch member 107 carries a cam 112 engaged by a roller on a bar 113 connected to an arm 114 attached to the shaft 5b. When the clutch members are engaged, the cam 112 is rotated clockwise, Fig. 3, and while the annular part x of the cam is operative the door is closed. When the roller engages the part y the door is permitted to open and remains open until the part x again becomes operative. The magnetic clutch is controlled by a timing circuit 115 comprising a source of energy 116 and a normally closed switch having a contact .117 engaged by a stud 118 on the clutch member 107 once every revolution to open the switch. The interval of time between the opening and closing of the circuit 115 is regulated by a switch, one member 120 of which is normally held open by a spring 121. It is closed after the desired interval by a stud 124 on a gear 125 driven from a motor 127. On closing the switch 120 the circuit 115 is established through a solenoid 123 and the switch 117 and will remain closed until broken by the stud 118 opening the contact 117. When the circuit 115 is closed the magnetic clutch member 108 is energized and the cam 112 turned one revolution during which first the door 5 is opened and then closed and then the feed conveyer 12 operated to feed a batch of material into the beater. When the cam has made one revolution the stud 118 opens the switch 117 'breaking the circuit 115, stopping the cam 112, de-energizing the solenoid 123 and permitting the switch 120 to open, and the feed conveyer 12 is stopped. The gear 125 normally revolves at constant speed and the stud 118 will again close the switch 121 at the desired interval of time. By varying the speed of rotation of the gear 125 the time period for 'the beating and cleaning operation may be varied while the time for feed and discharge remain constant.