Patent GB-191415673-A (GB)
Title: Improvements in Heel Assembling Machines.
Inventor: HADDAN REGINALD
IPC: A43D33/00
Filed: 1914-06-30
Granted: 1914-09-10
Abstract: 15,673. Haddan, R., [Page Machine Co.]. June 30. Heels, machines for. - Lifts of varying sizes for building up a heel are supplied from a liftholding tray 35 having a number of vertical compartments 36 for lifts, the sizes of the compartments being made to correspond to the sizes of the lifts in the order in which they are to be assembled to form a heel. A lift is pushed out on to a work-receiving table 42 through a slot at the bottom of each compartment by a flat plate, of the same thickness as the lifts, which is reciprocated across the bottom of the compartment through connexions with a camoperated lever 44. As the lifts are pushed out on the table 42, they are given a coating of cement by a roll 39 which rotates in a cement bath extending the length of the tray. The lifts are assembled by the operator and are placed on one of a series of heel-holders 4 which are pivotally connected together and are carried by rolls riding in endless pathways formed by grooves 3 in the vertical side frames of the machine. The carrier formed by this series of holders is driven by an eccentric 10 on a main shaft 8, which is adapted to be moved through one revolution when a treadle 9 is depressed. The eccentric operates a pawl 13 which pushes the carrier forward through a distance equal to the length of a heel-holder each time the treadle is depressed. The assembled heel is automatically clamped on a holder by a plate 21 pivotally connected to the lower end of a rod 19 which can be vertically adjusted in a bracket pivoted on a rod 15, which slides perpendicularly in the holder and is normally held downwards, so that the plate 21 engages the heel, by a spring 23 interposed between the bottom of the holder 4 and a bracket arm at the lower end of the rod 15. A secondary and adjustable means for clamping the heels on the holders is provided by a bar 29 which is pivoted at its ends to two levers 26 pivoted on the machine frame and adjustably pulled downwards by springs 30. Each of the rods 15 carries a roll 24 which is adapted to pass under and be pressed down by the turned-up end of the bar 29 as the holder passes from heelreceiving position. The pressure of the springs 23 is thus aided as the cement sets by the tension of the springs 30. The heel is released from the clamp as the holder approaches heelreceiving position by the roll 24 engaging a cam-rib 2.5 on the frame, thus pressing up the rod 15 and allowing the heel to fall from the holder. The weight of the clamp causes it to swing from over the holder which is left clear for the lifts to be placed on by the operator. The clamp is moved back over the holder by engagement with a cam immediately the holder passes the assembling position. To guide the operator in positioning the lifts, each holder may carry an independent heel form, or each holder may be provided with a detachable breast gauge as shown and the lifts be set in position bv one guide form mounted on a carriage 52. The form, Fig. 10, comprises a pair of supports 54, 55, the support 55 being pivoted to the support 54 which slides on rods 53 secured to the machine frame. Each support is provided with a groove to take a spring-pressed finger 58 to which is detachably secured a heel former 61. The carriage 52 is locked to each holder 4 as it moves to the heel-clamping position by a bellcrank lever 64, Fig. 11, which is provided with a projection 70 adapted to rest at one side of a boss 66 on the carrier. The other end of the bell-crank lever is provided with an horizontallyextending end lug 71. An unlocking-bar 67, Fig. 1, sliding in the carriage 52 and adapted to be engaged by a stop on the machine frame after the carriage has moved past the heelclamping position, has its rear end portion inclined and so arranged that as the carriage moves onwards while the bar is held by the stop the lug 71 of the bell-crank lever 64 is engaged and pressed downwards by the inclined face of the bar, thus freeing the carriage from the holder and permitting it to be returned to the starting-point by a spring 72. The bar 67 also carries a downwardly-extending projection provided with a lug adapted to trip a bellcrank lever holding the support 55 locked in heel-forming position to the support 54. When the bar 67 engages the stop the support 55 is released and, a.s the heel is moved along with the carrier, turns about its pivot against the tension of a spring until the heel is freed. The form then closes as the carriage returns to the starting-point. A spring returns the bar 67 to the locking position.