Patent GB-190114882-A (GB)
Title: Apparatus for the Manufacture of Hook Chains for Fastening the Edges of Openings of Shoes, Garments, Bags and the like.
Inventor: JUDSON WHITCOMB LEONARD
Filed: 1901-07-22
Granted: 1902-06-12
Abstract: 14,882. Judson, W. L. July 22. Bending.-Relates to machinery for making hook chains, such asare described in Specification No. 6998, A.D. 1896, [Abridgment Class Fastenings, Dress], for fastening shoes, garments, bags, &c.. and formed of staples z, Fig. 30, and hooks y having link eyes y', lacing-lugs y<2>, and side lugs, or of similar elements. Fig. 2 is perspective view of the principal mechanism of the machine, Fig. 3 a plan of the bed-plate with parts removed, and Fig. 6 an enlarged section on the line x<6>-x<6>, Fig. 3. A main driving-shaft b is loosely mounted in brackets a<5>, and carries cams 1, 2, 3, 4, 5, a band-wheel b<1>, and a driving-pulley b<2>. The pulley b<2> has a notched clutch-ring b<3> cooperating with a pivoted and spring-pressed clutchdog, which is held in engagement by depressing a treadle connected with a bell crank b<13>, link b<12>, rock shaft, and sliding collar serving to release the dog, a spring b<14> normally holding the dog out of engagement. A feed-screw c is mounted in the bed-plate a, a', which is supported on a pedestal a'. The helical groove in the screw c closely fits the lugs y<2>, Fig. 30, and the threads at a portion c' are cut away to deliver the finished chain through the bed-plate. Intermittent rotary motion is given to the screw c, preferably by a Geneva movement comprising a star-wheel with radial grooves engaged by a roller on an arm on the shaft b, and segmental notches engaged by a notched lock-disc d<6> also on the shaft b. The hooks are spaced in magazines each made from a pair of angle-irons f, Fig. 6, secured by bolts f<1>, and provided with an intervening thin blade f<2>, which is slotted and guided by the bolts f<1>, and formed with hook seats or notches, and also with end shoulders. The loaded magazines are placed on a feed-incline g, and directed to a rotary holder or pair of discs g<2>, which are fixed on a shaft g<3> mounted freely in bearing-plates a<8>, Fig. 3, and provided with notches g<4> for the blades f and sprocket teeth g<5> to engage notches in the curved flanges of the bars f. A concave guide block g<6> has segmental guide grooves g<8> for the lacing-lugs of the hooks. The weight of the magazines moves the discs g<2> automatically. Segmental plates g<7> at the ends of the block g<6> have inclined shoulders g<9>, which act on the end shoulders of the blades f and gradually release the hooks, the lacing-lugs entering the screw grooves and striking against a straight-edge stop g<1>. The emptied magazine passes on to an apron g<11>. The hooks are fed by the screw between guide - bars h, Fig. 3, and are held down by retaining-plates h<1>, which may be separated against the action of a spring by means of toggle-levers h<8>, the plates preferably having slot-and-screw conn etions h<2>, h<3>. The hooks then pass between guide-cheeks h<11>, h<12>, the former having a vertical staple passage h<14> and two transverse passages, and the latter having one transverse passage. The staples are held on a bar k clamped on a bracket a<6>, Fig. 2, and formed with a flared rib and a socket section k<2> to receive the grooved end of a supplemental charging-stick. A slide is made in two parts 6, 7, Fig. 3, which are normally locked together by a spring pressed bolt 8. The part 6 is operated from the cam 2. The part 7 carries an adjustable staple-feeding plunger m. A slide 15 is operated from the cam 3. and has a supplemental slide 23 carrying a plate 20, which is operated from the cam 5, and provided with inclined grooves 21 for rollers on the ends of clinching pincers n. Clinching-dies p are mounted on the parts 15 and 6. Three spacing-blades are carried by a head r<3>. Fig. 2, on a slide operated by the cam 4. The cam 1 operates a cut-out device shown in Figs. 2 and 24, whereby the staple supply is interruoted to obtain chains of desired lengths. A looselyjournalled sleeve t carries at the rear end an arm t<1> operated by the cam 1, and at the front end a vibrating arm t<3>, on which a reversible doubleended pawl t<4> is pivoted. A shaft t<8> is mounted loosely in the sleeve t, and has at its rear end a friction disc t<9> subject to an adjustable friction clamp t<10>, and at its front end a ratchet disc t<12> for co-operation with the pawl t<4>. Adjustable reversing- stops t<14> on the disc t<12> engage a trip finger t<5> of the pawl. A lug t<6> of the pawl co-operates with a spring-pressed plunger t<7> to hold the pawl operative in either position. A trip pin t<15> on the disc t<12> engages a spring-retained trip bolt t<16>, Figs. 2 and 3, which in turn engages the bolt 8 and forces it into a notch 9 of a lock-block 10. The chains formed will have twice as many links as there are notches between the stops t<14>.