Patent GB-776180-A (GB)
Title: Improvements in or relating to machines suitable for moulding shoe soles
IPC: A43D35/00
Filed: 1954-09-28
Abstract: 776,180. Moulding soles. BRITISH UNITED SHOE MACHINERY CO., Ltd., QUICK, A. S. and RIVINGTON, A. A. Sept. 27, 1955 [Sept. 28, 1954], No. 27918/54. Class 17 (1). A machine for moulding shoe soles comprises an upper mould 3, a lower mould 1 movable heightwise toward and from the upper mould, a pair of gauges associated with the lower mould engageable with opposite sides of the sole to locate the latter, on the lower mould, means. urging the gauges towards each other, means supporting the gauges for movement with the lower mould during the early part of its upward movement, means operative at a predetermined stage in this movement to arrest upward movement of the gauges therewith, and means operative at a later predetermined stage in the upward movement of the mould to move the gauges downwardly, the gauges are then moved outwardly. Breast line gauges 17, 19, adjustable in arms 21, 23 pivoted on studs 25, 27 on a carriage 29, are urged to closed position by spring 57, intermeshing segments 47, 49 ensuring equal and opposite movements. Carriage 29 is slidable vertically on the lower mould holder 5, being urged upwardly by spring 33 with such movement limited by engagement of stops 43, 45 (not shown). The gauges for the toeward portions of the waist include arms 59, 61 pivoted &c. similarly to arms 21, 23 and moved outwardly with the latter by a projection 67 on arm 21. These centralizing gauges are opened by means of a wire 75 connecting arm 21 to a drum 77 which is rotated, as holder 5 rises, by engagement of a spring plunger 85 on the latter with an arm 83 of the drum. Rotation of drum 77 is limited by engagement of stops 91, 93, spring 89 then yielding. The gauges are retained open by engagement of a plunger 97 in a notch 95 in the drum. Plunger 97 is withdrawn by cable 101 when an operator actuated member is moved to trip the machine into motion, the gauges then being closed by spring 57 to engage the sole. Heel end gauge 111, to locate the sole longitudinally of the mould, is slidable vertically in carriage 113 adjustable lengthwise of the mould by screw 115 operated by hand wheel 117, a pointer 123 on carriage 113 registering with size indicator 125. The latter comprises a cylinder with several scales, and is turned about its axis to position the appropriate scale. Pin 111 is supported on plate 131 mounted on carriage 29. As holder 5 moves upwardly the head of stud 25, or 27, engages abutment 133 to arrest the upward movement of the gauge fingers which slide in grooves 134 in the lower mould. Holder 5 carries a thrust rod 151 which is urged upwardly by spring 157 and adjusted heightwise by nut 161, and as the holder moves further upwardly rod 151 engages a pivoted bell crank 147 and straightens a toggle 145, 143 thereby forcing thrust member 137, abutment 133, and the gauges downwardly. Spring 150 normally holds the toggle broken. Straightening of the toggle is limited by stop 155. In operation the sole is placed on the lower mould in engagement with heel end gauge 111, and the machine tripped, whereupon the side gauges close to centralise the sole. The lower mould rises until abutment 133 arrests upward movement of the gauges, the sole riding up the gauge fingers. On further movement of the mould the toggle is straightened, moving the carriage and gauges downwardly and rotating the drum so that the gauges are opened. The drum is then latched to retain the gauges open, and the lower mould returns. Specifications 562,893 and 702,282 are referred to.