Patent GB-149965-A (GB)
Title: Improvements in wiping mechanism for use in the manufacture of boots and shoes
IPC: A43D21/12
Filed: 1919-08-14
Abstract: 149,965. Reece Shoe Machinery Co., (Assignees of Perri, A.). Aug. 14, 1919, [Convention date]. Lasting. - An end-lasting mechanism particularly for wiping the heel ends of shoes, and which may form part of a complete pulling over and lasting machine, comprises a heel pad 16, Fig. 2, and wiper plates 17 supported in a rotatable cylindrical carriage 20 mounted in a second carriage 21 adjustable vertically in a carriage 22 by screw mechanism 84 &c. The carriage 22 slides in a rack on a tilting carriage 23 pivoted as shown between ears 65 of a circular carriage 24. The latter is pivoted to a swinging carriage 25 itself pivoted at 41 to a carriage 26 which slides from right to left on the ..top of a post 27 pivoted at 28, Fig. 1, to the base of the machine. Adjustable stops 38, 39, Fig. 3, determine the play of the carriage 26. The movement of the swinging carriage 25 is limited by adjustable stops 44 Fig. 2, which engage recesses 43 in the carriage. The stop pins can be pulled down by the rod 46 and rack 48 and are adjusted in position by a right and left handed screwed rod 47. The rotary carriage 24, which is for setting the axes of the wiping-devices, is provided with a machined part 52 to fit under a flange 53. The carriage 24 is automatically rotated as the pivoted carriage 25 swings over by teeth 54, Fig. 3, engaging a pivoted toothed member 56 meshing with a pinion 58. The axis of the carriage is reversed to that of the carriage 25. In order to increase the turning movement, the pinion 58 is further engaged by racks 59 engaging cams 60 on the lower carriage. The entire mechanism is reversed for right and left shoes by a handle 63, Fig. 1, which first slides the carriage 26 to the stop 39, Fig. 2, after which the carriage 25 swings till it engages the stop 44 and the carriage 24 reverses its axis. The tilting carriage 23 is adjusted by a handle 69, Fig. 1, operating a screw 67 engaging a pivoted block 63 on the carriage and a bearing 66 on the lower carriage. To bring the wipers up to the shoe, the carriage 22 slides longitudinally on the carriage 23 and is adjusted by a rack and pawl 75, 76 and spring handle 78. The actual movement of the carriage is caused by a long handle 73, Fig. 1, with a toothed pinion 72 engaging a rack 71. The carriage 22 has guides 81 in which slides the carriage 21 controlled by a handle 84. This operates a rod 85 and a pinion 86 engaging another pinion 87 on a threaded rod 88 which engages a sleeve 89, Fig. 2. The cylindrical carriage 20 can be rocked by a handle 90, Fig. 1, and consists of a support 92, Fig. 8, and a slide 110 carrying the actual wiping-mechanism and a support 93 and a slide 95 carrying the heel clamps. The support 93, Fig. 5, has a head 94 carrying the clamping- members 100. 101.. A spring 97 tends to press the slide 95 heelwards. The clamp device consists of a pad 16 backed by blocks 100, 101 carried in pivoted pieces 102 attached to lever arms 105 operated by a wedge cam 106 about adjustable fulcra. As the carriages 22, 21, 20 are thrust towards the shoe, the block 100 is stopped but the head 94 continues to be pressed forward against the spring 97. The cam arms 105 are thrust apart and the blocks 101 clamp the shoe. The pawl 76, Figs. 1 and 2, is then released to lock the parts. The support 92, Fig. 4, for the wiper plates is provided with an enlarged head 108 to carry the wiper plates 17. A wiper slide 110 is advanced and retracted by a handle 18, Figs. 1 and 2, pivoted to bars 112 &c. attached to the carriage 21. The wiper plates 17 are mounted on a carrier 116, Fig. 4, having curved guides 117 engaging in slots 118 so arranged that the plates swing about their meeting point and preserve continuity of edge in the known manner. To swing the plates together, links 121 are engaged by a cross-piece 122 rigidly attached to the slide 110. When the slide is thrown to the left, an adjustable stop 123, Fig. 2, brings the carrier 116 to rest, but the continning movement swings the plates in at the sides. The stop is so arranged that the apex of the wiping contour is brought s.'ightly over the shoe, The wipers are partly retracted by a spring 125, Fig. 4, but not completely, so as to leave the wipers slightly over the margin of the shoe until the edges are tacked. A latch 127 is provided to slip behind the spring post 126 during wiping and prevent its return until tripped by a roller 130.