Patent GB-191316458-A (GB)
Title: Improvements in or relating to Machines for Securing Lacing Hooks to Boots or Shoes.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: A43D100/10
Filed: 1913-07-17
Granted: 1914-07-17
Abstract: 16,458. Jackson, W. J. Mellersh-, [Philbrick, H. C., and Fuller, J. T.]. July 17. Setting lacing - hooks ; driving - mechanism. - A machine for setting lacing- hooks comprises two series of setting-devices adapted to fix the hooks in both edges of the shoe-upper simultaneously. The operation is performed during one revolution of the main shaft 10, Figs. 1 and 4, which is provided with a loose pulley 13 and a clutch 15 having a spring-pressed plunger 16 to engage normally with one of a series of sockets 14 in the face of the pulley. The clutch is automatically disengaged by means of a lever 19 engaging with a cam surface 17 on the plunger 16 when a lug 24 on the clutch trips a lever 23 pivoted on the lower end of the lever 19. The machine is started by the lever 19 being raised by a shaft 32, which is moved so that its rear end actuates a pivoted arm 28 having a stud 26 against which the other end of the lever 23 is normally held. S e t t i n g - mechanism ; spacing - mechanism.-The rear end of the shaft 32 is square to reciprocate in and to rotate a mitre gear 33 through which it extends. The remaining portion of the shaft extends through plates 39, 40 carried by a bar 41 adapted to slide on guide bars 45, and on this portion of the shaft are threads 46, 47, 48, 49 on the upper half of which are threaded die blocks 50, 51, 52, 53. A guide bar 54 extends through the blocks, the spacing apart of which to vary the spread of the hooks is adjusted by turning the shaft 32; the pitch of the threads is such that the die blocks keep the same relative distance apart. A setting-disk 185 having sockets 186 to receive a spring plunger 187 on a collar 42 on the shaft is provided, each socket representing a given size of upper. In operation, the shaft 32 is pulled out, and both portions of the shoe-upper are clamped against dies on opposite sides of the die blocks. The shaft is then pressed in, to place the shoe-upper between reciprocating carriages 76, 77 carrying the lacing-hooks and to start the machine. Passing through the carriage 76, 77 are shafts 78, 79, Figs. 1 and 3, provided with threads 82, 83, 84, 85 corresponding with the threads on the shaft 32 and carrying blocks 86, 87, 88, 89, each provided with a pivoted lever 92 the upper end of which receives a hook placed opposite to the dies. The shafts 78, 79 are rotated with the shaft 32 through mitre gearing to vary the spacing of the blocks 86, 87, 88, 89. The lower ends of the levers 92, Fig. 3, are engaged by arms 94 secured to shafts 95 journaled in the carriages. During the inward movement of the carriages to set the hooks, springs 106, acting through rods 102, blocks 99, and racks 98 engaging pinions 97 on the shafts 95, awing the arms 94 out of engagement with the levers 92, allowing these on the return of the carriages to disengage from the hooks set in the upper ; they are then returned to upright position by the arms 94. The carriages 76, 77 are reciprocated by eccentrics 113 through toggle-links 117, 121 and adjustable connecting-rods 115. Each link 121 is adjustable to vary the extent of travel of the carriages towards the centre of the machine. Work-holding mechanism.-The work is held against the die blocks by clamps 74, Fig. 6, carried by shafts 57, 58, which are rotated simultaneously by a handle 73 on a reciprocating rod 66 through links 67, 70 connected to gears 60, 62 meshing with pinions 59, 61 on the shafts. Gauge plates 171 are fixed to the top of each die block to position the shoe-upper. Lacing-hooks, feeding.-The hooks are fed down rods 168, Fig. 8, to vertical slotted raceways 158, from which they are transferred one at a time by horizontal overlapping rods 156, 157 raciprocated by attached racks 154. The racks 154 are operated by pinions 152, Fig. 4, on vertical shafts 150 having at their lower ends pinions 149 meshing with teeth on both vertical sides of a rack 140, which is reciprocated by a pinion 138 on a shaft 135. This shaft is rotated in one direction through a pinion 134 by a rack 132 operated through a lever 126 by a cam 125, and in the other direction by springs 146, Fig. 1, through another rack and pinion.