Patent GB-191513085-A (GB)
Title: Improvements in or relating to Boot or Shoe Treeing Machines.
IPC: A43D11/04
Filed: 1915-09-13
Abstract: 13,085. Miller Treeing Machine Co., O. A., [Assignees of Hansen, J. S.]. Sept. 13. Treeing and ironing.-A machine for cleaning and ironing shoes preparatory to the final dressing operation before packing comprises a turret carrying four alternate right and left trees, preferably of the type described in Specifications 6709/85 and 6710/85, mechanisms for cleaning and ironing the back and instep portions respectively of a shoe, and two mechanisms for similarly treating the sides of another shoe at the same time as the first two mechanisms are in operation. The back-treating mechanism comprises a pair of self-adjusting irons 16, Figs. 1 and 5, and a pair of circular, adjustable, but non-rotating brushes 17 carried by alternate arms radiating from a holder 15 fast on a shaft 14, which is supported in the ends of arms 18 fulcrumed on a shaft 19. The movement of the mechanism into operative position is controlled by a spring- controlled hand-lever 20, Figs. 1 and 3, which is then locked by a latch 23. The mechanism is driven from a small electric motor 26 through a vertical shaft geared to the shaft 19, which drives the shaft 14 through a chain passing over sprosketwheels 28, 29. The irons 16 are preferably heated electrically, the arms of the holder 15 being chambered to receive members 30, Fig. 5, which are connected in series with slip-rings 33, 34 on the shaft 14; the rings receive current from carbon brushes carried in spring-pressed holders 38 having shanks pivoted in stationary conductors 39, which are secured to, but insulated from, the arms 18. The instep-treating mechanism comprises two brushes 45, Fig. 1, and two self-adjusting irons 46, secured on arms radiating from a holder fast on a shaft 44, which is driven from the shaft 19 through sprocket chain gearing ; each iron comprises a pivoted rocker 47, Fig. 11, carrying two smaller pivoted rockers 48, to each of which is pivoted a pair of ironing-members 49. The shaft 44 is journaled in a swinging frame 50 hung from a shaft 51 mounted in a forked arm 52, which is supported partly by a shaft 53 and partly by an arm 54 projecting from a bracket 55 secured to a vertical standard 56 in the centre of the turret; the arm 52 is adjustable relatively to the arm 54 to position the instep treating mechanism for shoes differing considerably in length. To move the insteptreating mechanism into operative position simultaneously with the back-treating mechanism, the arms 18 are provided with an extension 60, Fig. 1, having a pin-and-slot connexion with a collar slidable on the standard 56 and secured to the lower end of a rod 61, the upper end of which is connected to a collar 63 coupled to the frame 50 through a bell-crank 64, a link 65 connected to the lower end of a lever 66, and a pair of links 67, 68 connected together by a pin and slot. A spring 70 holds the mechanism yieldingly in its operative position, while the links 67,68 enable the mechanism to adjust itself to the shoe as the tools move over the work. The irons 46 are heated electrically in a similar manner to the irons 16. The sidetreating mechanisms comprise frames 73, Figs. 1, 8, and 9, supported on arms 74 which can swing about the motor shaft 27, each frame supporting shafts 75 carrying sprocket-wheels over which run chains 76, which serve, through the provision of cross-rods 77, as carriers for the shoe-treating devices ; the rods 77 are extended to run in tracks in the frames 73 to keep the chains in position. The shoetreating-devices comprise two sets of irons 78, Figs. 8 and 9, and two sets of brushes 80, each set being staggered with relation to the tools of the other set. One of the irons 78 in each set comprises members 82, Fig. 12, pivoted to a rocker 83, which in turn is pivoted to a holder 84 so that the members 82 will reach those portions of the upper adjacent to the rand crease ; for the same purpose, one of the brushes is of conical formation. The tools 78 of each set are mounted on holders 88, Figs. 8 and 9, pivoted on a rod 87 supported by plates 88, which are loosely mounted on the rods 77 and spaced apart by connexions 86. Each holder 88 has a lug 89 to receive a threaded stopscrew 90 in position to bear on one of the rods 86 ; a spring 91 normally holds tha iron projected outwards as far as the stop permits, but allows it to swing inwards in accordance with the shape of the shoe. The brushes 80 are supported on a second rod 87 and are yieldingly positioned and adjustably controlled. The frames 85, 86 are normally pressed to the left, Fig. 8, by springs 92, but during the operation of the devices on the shoe, each frame is moved laterally by rolls 94 engaging removable cams 95 or 96, which are shaped respectively to the outer and inner curvatures of the rand crease ; the order in which the cams are operative is automatically changed in accordance with the presentation of a right or left shoe. The irons 78 are also preferably heated electrically, the heating-elements 100 being connected in series and receiving current through yielding conductors 101 from plates 103. The side-treating mechanisms are driven by gearing connecting the lower shafts 75 of each set with a worm on the motor shaft. To swing the mechanisms into and out of operative position, the frames 73 are connected by links 109, Fig. 4, to gears 110, 111, Fig. 14, which are geared to rotate simultaneously in opposite directions. The gear 110 is driven from a rack 115, Figs. 3 and 4, upon which are mounted standards 117 supporting parallel racks 118. A frame comprising side members 119, 120 and connecting-rods 121 is fulcrumed on the shaft 19 to one side of the lever 20, and in it are journaled geared shafts 122, 123 driven from a gear 126 on the shaft 19. The member 120 has a forward extension positioned between adjustable stops 128, 129 on a bracket 130 secured to the lever 20. When this lever is depressed, the frames 119, 120 swing downwards and a constantly rotating gear-wheel 127 on the shaft 123 is carried into engagement with the lower rack 118, which, with the rack 115, is moved until the gear reaches a cut-away portion 134. This causes the side-treating mechanisms to swing into contact with the shoe, where they remain until the latch 23 of the lever 20 is released. This release is effected automatically and at a predetermined time by a weighted rack 137 which is advanced step by step by a pawl 140 operated from the shaft 19 ; this pawl is moved into engagement with its rack as the gear 127 drops into engagement with the rack 118. When the release takes place, the lever 20 is swung upwards by its spring 22, the rack 137 is drawn back by its weight 138, and the gear 127 moves into engagement with the upper rack 118, which causes the rack 115 and consequently the side-treating mechanisms to be returned to their former positions. Specifications 7260/92 and 5523/07 also are referred to.