GB198430A - Improvements in or relating to bag corner sewing and like operations - Google Patents

Abstract

198,430. British United Shoe Machinery Co., Ltd., Ricks, F., and Reid, R. G. March 2, 1922. Sewing-machines; suit-cases and the like, stitching; horns and related parts.-A machine for sewing suit-cases or the like of the type described in Specification 174,419 is provided with (a) a bag-entering supporting-horn, capable of restricted rotary and axial movement, and of movement in the line of feed, (b) means to position the work when swinging on a corner, and (c) means to indicate the relative position of the needle and the work when operating near a bagcorner. A horn 1, Fig. 2, provided with a balance-weight 40 is fixed by a pin 4 to a spindle 5 journaled in a bearing 10. An arm 11 on the bearing 10 is journaled in a member 12, rotatably mounted on a shaft 15 fixed to the frame. A work-engaging roll 43 is universally mounted on the horn 1 and is limited in movement by a pin 60. Movement of the bearing 10 on its pivot 11 is restricted by a lug 33 thereon, engaging between plungers 32 and stop-screws 34. A block 20 pivoted to an arm 19 of the member 121 is slidably mounted between a nut 24 and a spring 27 on a rod 21. The rod 21 is actuated from the main cam-shaft 18 to cause the horn 1 to clamp and free the work in time with the feed. A treadle-actuated lever 29 pivoted to the shaft 15 has a lug 30 which actuates the arm 19 to swing the horn 1 from the support 28 for manipulating the work. The spindle 5 has axial movement limited by a collar 35 and an adjustable screw 36, which normally rests on the bearing 10, the weight of the horn being balanced by a spring 38. A rod 42 on the member 12 passes through an opening in the member 40, thus limiting the rotation of the horn 1. Movement of the horn about the pivot 11 is shown by a pointer 44 on a scale 45 attached to the rod 42. The pointer 44 and an arm 46, which engages in a recessed boss on the horn, are clamped to a spindle 48, rotatably mounted in a bearing 50 on the rod 42. When the roll 43 contacts with a corner of the work, the operator inserts one or more stitches, as shown in Fig. 9, in accordance with the indication of the scale 45, then cuts out the feed, and puts in one or more corner stitches, Figs. 10 and 11, meanwhile swinging the bag round with its corner positioned by a depression 61 on the support 28. An auxiliary work-support comprises a felt-covered horizontal bar, the stem of which has rotational and vertical adjustment in a bracket on the machine column.