Patent GB-705306-A (GB)
Title: Improvements in and relating to a method of and apparatus for continuous mixing of textile fibres
IPC: D01G13/00
Filed: 1951-08-07
Abstract: 705,306. Mixing fibres; feeding fibres to textile machines; stop-motions for textile spinning &c. machines. AKT.-GES. J. J. RIETER & CIE. Aug. 7, 1951 [Aug. 7, 1950], No. 18619/51. Classes 120(1), 120(2), and 120 (3) Textile fibres are continuously mixed by spreading fibres of the same kind to form a first layer, spreading fibres of a second kind on the first layer to form a second layer and so on until a first stack consisting of as many superposed layers as there are kinds of fibre is completed, producing a second such 'stack separated, from the first, shaving the fibres off one of the vertical flanks of the first stack on a surface forming an angle with the layers and simultaneously from all layers of the first stack. In the operation of the apparatus illustrated, an operator-moves from each bale B on to a feeding lattice 2 an amount of fibre sufficient to produce one layer: the fibres are divided by a bale opener 1 into flocks which are drawn through a pipe 3 . to a discharge box 4 which deposits the fibres on to a lattice 5 mounted on and reciprocating with and driven through rollers 8 by a frame 6 carried by rollers 7 and driven by a motor 19 through gear wheels 16, 17, 18, chain 11, to run on rails 9 above a box 10 into which the fibres are thrown alternately at the ends of the lattice 5 until a stack, supported on removable plates 26, is completed. Meanwhile a previously formed stack in the lower part of the box 10 i.e. below the plates 26, is constantly pushed by a spiked lattice 20 against a spiked lattice 21 the front side of which picks out and carries. away fibres equally from all layers, a fluted cylinder 23 depressing the fibres raised by the lattice 21 and a vane wheel 24 detaching the flocks and advancing them to a discharge funnel 25. As the top of the stack moves clear of a regulating flap 45 the latter swings inwardly and through levers 42, 43, and rod 41 moves a control piston 39 to the position shown by chain-dotted lines, Fig. 3, so permitting a pressure medium in the lower part. of a cylinder. 33 of a working piston 32 to escape through a duct 35 and, if an operating liquid is used, this enters a reservoir through an opening 37 or 38: at the same time the. recess of the piston 39 reaches a pressure duct 34 and permits the medium to flow from a duct 40 and through the duct 34 into the space above the working piston which is thus urged downwardly and through a rod 31, levers 29 and rods 30, causes shafts 28 to rotate so that the plates 26 and wall portions 27 integral therewith are swung outwardly and the stack in the upper part of the box sinks on to the lattice 20: the newly supplied material presses the flap 45 against the wall of the box causing the plates to close and form a support for the next stack to be produced. The fibre distributing device above the box 10 may include a swingable funnel replacing the lattice 5. The supply of fibres from the bale opener is automatically arrested and resumed as a predetermined number of layers is produced and when the plates 26 are in position to receive the layers for a new stack. Each time the frame 6 reaches one of its end positions, Fig. 4, an abutment 49 swings an arm 48 carrying a pawl 47 which rotates one tooth of a ratchet wheel 46 so that an adjustable pin 51 thereon advances to a footplate 52<SP>1</SP> of a red 52 which is lifted with the last oscillation of the arm 48 to open a switch 53 to stop the motor of the 'bale opener 1. The frame 6 continues its movement while empty and the pawl 47 slides idly on a toothless portion of the wheel 46. During outward movement of the plates 26 a lever 54 has lifted a rod 55 to disengage a ratchet pawl 50 so that the wheel 46 rotates to its original position, under the effect of a weight 56, until the pin 51 engages an abutment 58, the rod 52 moves to close the switch 53 to restart the motor of the bale opener, and when the plates 26 close the pawl 50 re-engages.