GB370069A - Improvements in or relating to ironing machines - Google Patents

Abstract

370,069. Ironing-machines. EMERY, W. M., 336, North Owen Avenue, Lansdowne, Pennsylvania, U.S.A. Jan. 13, 1931, No. 1132. [Class 138 (ii).] The roller 14 of an ironing- machine supported by standards 25 is moved from the position shown in Fig. 1 into contact with the heated bed 10 by means of a motor housed within the periphery of the roller and, after it has been so moved, is rotated by the same motor, the change-over of the functions of the motor being effected automatically. Yokes 26, 27, Fig. 6, supporting the motor 28 are secured eccentrically to hollow spindles 18, 20 which pass freely through the hubs of the end discs 15, 16 of the roller. Journals 21, 22 rotatably mounted in bearings 24 in the standards 25 are secured eccentrically to the spindles 18, 20. The roller is formed with an internal annular gear 43 with which engages the final wheel 42 of a reduction train 31, 37, 38, 39, 41, 42 rotated by the motor. The gear train includes clutch members 44, 45 formed on the gear wheels 39, 41, which are rotatably mounted on a stud 40, and of which the slidable element 45 is controlled by a manually operated push rod 47 extending through the hollow spindle 18 and locked in either position by a spring-pressed plunger 55 which engages one of a pair of annular grooves 57, 58 in a collar 49 on the push rod. When the roller is in the position shown in Fig. 1 rotation is prevented by the engagement of a spring-pressed serrated pawl 65, Fig. 5, pivoted to the inner face of the right-hand standard 25, with a radially notched disc 60, Fig. 6, secured to the hub of the end disc 15. Rotation of the gear wheel 42 consequently causes the eccentrics 21 to rotate clockwise, Fig. 1, in their bearings causing the roller to be swung bodily into contact with the bed 10, the push rod 47 travelling through an arcuate opening 7. The eccentric 21, Fig. 5, carries a projection 68 and at the time that the roller contacts with the bed this projection will engage under a laterally projecting arm 66 of the pawl 65-the rotation of the eccentric being counterclockwise in this figure -to move the pawl out of engagement with the disc 60 thereby unlocking the roller and enabling the gear wheel 42, Fig. 6, to rotate the roller through the annular gear 43. Further rotation of the eccentrics is prevented by a pin 70, Fig. 5, projecting radially from the eccentric 21 reaching the end of a slot 69 in the bearing 24. Rotation of the eccentrics causes a spring 71, Fig. 6, anchored at one end to the shaft 18 and at the other to the bearing 24, to coil itself more tightly around the shaft 18 so that upon the operator throwing out the clutch 45 the spring rotates the eccentrics in the reverse direction thereby moving the roller out of contact with the bed, the eccentric mounting of the motor with respect to the shafts 18, 20 assisting in this movement.