Patent GB-190322048-A (GB)
Title: Improvements in Machinery for Inserting Lacing Studs.
Inventor: BROOKES ALFRED GEORGE
Filed: 1903-10-13
Granted: 1904-09-29
Abstract: 22,048. Brookes, A. G., [Glass, P. R.]. Oct. 13. Lacing fastenings.- Relates to machinery for automatically setting lacing-hooks or studs having hollow shanks in boot uppers or other articles. The hooks are fed in bulk to the hopper A<5>, Fig. 4, of a lifter A<9>, Fig. 21, and separator a<6>, Fig. 15, which passes them separately down a raceway a<8> to a plate f<8> which enters the throat of the hook and supports it against the action of the fixing-punch C'‹, Fig. 8. If a hook is improperly lodged anywhere in the raceway, or if a hook is still in the supporting-plate, the lifter is thrown out of action until the obstruction is removed. While each hook is being received by the plate f<8>, the punch C<10> pierces the material and is then moved horizontally, taking the material with it over the hook. A plunger m<4>, Fig. 15, carrying the hook-supporting plate then rises, forces the tubular shank of the hook over the punch, and upsets the shank by meeting the enlarged part of the punch, thus securing the hook in position. Devices are provided to stop the various parts of the machine when books are improperly lodged. The hopper A<5>, Fig. 4, forms part of a casing A' in which is mounted, upon a shaft A<8>, the lifter A<9> having arms shaped as shown in Fig. 21 to lift the hooks and feed them to a raceway composed of rails a<2>, a<3>, Figs. 4 and 21, between which the hooks pass to the separator A<6>, Fig. 15, to be finally delivered from a finger of the separator to the delivery raceway a<8>. An intermittent rotary motion is imparted to the lifter by means of ratchet-mechanism and a rack b<4>, Fig. 4, the rack being operated from the cam-groove B<1> through a lever b<8> which is connected to the rack by means of a spring in such a manner that the lever is free to move without the rack when a hook is imperfectly held in the lifter. The pawl b, Fig. 1, engages notches in the ratchet-wheel, and is lifted therefrom at the end of its stroke by means of a pin 3 engaging a fixed finger 4 ; if the pawl does not make a complete stroke, the pawl is not lifted from the notch, the hook lifter is then turned backwards and cannot be again turned forwards to lift another hook until the improperlylodged hook is removed. The punch C'‹, shown in section in Fig. 8, is mounted in a carriage C<9> which is reciprocated vertically by means of a cam on the shaft C<4>, the shaft being operated by means of a rocking lever engaging at one end a cam on the main shaft B<5>, and at the other end having a toothed sector to engage a segment C<3> on the shaft C<4>. The horizontal reciprocating motion is imparted to the carriage C<9> by means of a sleeve C<12> shown separately in Fig. 3, and mounted loosely on the shaft C<4>, Fig. 1. The end e<6> of the sleeve engages a stud on the carriage, and the slotted end C<8> engages a stud on a lever which is reciprocated by means of a cam from the main shaft B<5>. The position of the stud in the slot is adjusted by means of a lever C<16>, Fig. 4, moving over a scale C<19>. This adjustment regulates the distance apart of the studs in the material. The gauges e<2>, e<3> partake of the reciprocating motion of the carriage, being connected to an arm e<1> which is bolted to the punch. One gauge sets the first hook at the required distance from the top of one half of the shoe upper, and the other sets the first hook at the required distance from the bottom of the other half. The presser-foot e<4>, Fig. 1, is held down by a spring, and is mounted on a rod e<5> having a stud c<5>, Figs. 1 and 15, acted upon by a pivoted lever e<7> ; the lever e<7> is actuated by a cam e<10> to lift the presser-foot while the punch is feeding the material forwards. The position of the separator finger a<6>, Fig. 15, is adjustable ; a spring f<4> and a stop normally hold it in position, and the finger is withdrawn, to allow the hook to enter the raceway a<8>, by means of an adjustable spring-supported pawl g<7> attached to a reciprocating lever g. The pawl engages the dog f<3> of the separator as it moves one way, and passes beneath the dog in the return stroke. A plunger f<6>, shown separately in Fig. 6, is guided between plates g<20>, and, during the return stroke, is operated by the lever g, so that its forward end enters the throat of each hook, and pushes it into the setting-pocket of the plate f<8>. The lever g is pivoted at g<1>, and is actuated from the face cam h<2> through a radius bar, loose on the stud g' and provided with a roller h engaging an elongated slot h<1> in the lever. The radius bar is connected by a spring h<5> to a rod a<4> projecting from the lever g so that the lever may yield in either direction when the plunger f is stopped by an improperly-lodged hook, thus preventing the lever g from making its full stroke and thereby rendering the pawl g<7> inactive and preventing the further feeding of hooks to the plate f<8>. This plate is carried by the part m<7> of a plunger m<4>, Fig. 15, made in several parts adjustable to suit the punch. The upper part m<6>, shown in Fig. 8, is cut through to form a space 5 having grooved sides in which the plate f slides. A recess 30 in the plate f<8> is made to receive the part 31 of the hook ; the end of the plate has a notch 10, Fig. 7, to embrace the head of the hook, and a hole in the plate receives the end of the punch if it should protrude through the tubular shank. To withdraw the plate f<8> from each hook, after the hook is fixed in position, the plate m<7> is guided by a rod m<8>, Figs. 8 and 15, and has an ear m<9> provided with a pin 32 to enter a slot in a lever n<1> pivoted at n<2> and provided with a roller n<7> engaging a cam n<8> on the main shaft B<5>. By means of a spring n<5> and pin n<6> in the tubular part n' of the lever n<1>, the roller and cam are kept in engagement. A finger 40, Fig. 15, extending across the raceway a<8> carries a hook seater having an inclined end against which the hook shank engages as the setting-spindle rises, thus forcing the hook into position on the plate f<8> should it have become improperly lodged.