Patent GB-336566-A (GB)
Title: Improvements in or relating to machines for drying yarn or other textile materials in hanks
IPC: F26B13/00
Filed: 1929-07-09
Abstract: 336,566. Marr, A. N. July 9, 1929. Articles traversed during drying.-Apparatus for drying and conditioning fibrous material, e.g. yarn, in hanks, comprises a longitudinal drying chamber 2, which may be closed at one end, between two longitudinal chambers which contain the heating apparatus and fans. The hanks a.re carried on poles 6, each end of a pole having a metal ferrule 12 of circular crosssection provided with spur teeth 13, the outer end of the ferrule being of square cross-section. The poles are caused to move intermittently along a lower race 4, 4, attached to the inner sides of the drying chamber 2, at the end of which the poles are raised by projections 18 on pulleys 17 which co-operate with a guide 19, on to an upper race 5, 5 parallel to, and formed similarly to, the lower race 4, 4. In the rails forming the lower race, gaps 9 are provided in which are racks 10, the teeth 11 of which coact with the spur teeth 13 on the ferrules of the poles, giving the pole a rotary movement as it crosses the gap. The intermittent movement of the poles along the races is obtained by the provision of two pairs of vertical frames 34, 34, 35, 35, each frame having a horizontal opening 37 and a vertical opening 36. A shaft 39, journaled in the framework of the machine, passes through the centre of the horizontal opening and carries two cams 40, 41, the larger cam 40 acting on the sides 42 of the vertical opening and the smaller cam 41 acting on the top and bottom of the horizontal opening, giving to the frame longitudinal and vertical reciprocating motion respectively. Each pair of frames 34, 35, carries upper and lower horizontal bars 43, 44 which are connected together by vertical rods or plates 45 passing through guide brackets 46 fixed to the walls of the drying chamber. Each bar 43, 44 carries fingers 47, 48, and the mechanism is arranged so that when the frame is travelling towards the inner end of the drying chamber it is also in its lowest position and allows the fingers 47 to engage the poles 6 on the lower race and carry them forward, the fingers 48 being disengaged from the poles on the upper race until the frame rises and the longitudinal motion is reversed. The poles 6 on the lower race 4, 4 are thus moved intermittently towards the pulley 17, the poles on the upper race being moved intermittently to the discharge station. The poles are fed to the lower race from horizontal angle irons 49 down an inclined portion 50 fitted with a guide 51, and a lever 56 passing through a loop fixed to the reciprocating bar 43 moves a second lever 57 with a curved end 59 which pushes the poles into position to be acted on by the fingers 47. Means are described for discharging the poles on reaching the end of the upper race 5, 5, after passing through the conditioning chamber 7, in either an upward or a downward direction. A rod carrying one or two sets of fingers (according to whether the poles are to be discharged in a downward or upward direction) to control the motion of the poles after leaving the drying chamber is connected by levers to the reciprocating bars 44 so that it receives an intermittent turning motion if the poles are being discharged in a downward direction and an intermittent combined turning and longitudinal reciprocating motion if the poles are to be carried upward, in which case, stops controlled by springs, are provided to prevent the downward movement of the poles while the turning movement of the rod is taking place. More than two races may be provided in the drying chamber, each race being connected by a pulley with the race immediately above so that the poles are carried along all the races in succession. Specification 15133/05 is referred to.