Patent GB-146036-A (GB)
Title: Improvements in machines for applying caps or closures to bottles and other containers
IPC: B67B3/02
Filed: 1919-11-17
Abstract: 146,036. Tevander, O. N. Nov. 17, 1919. Capsules, applying; wiring stoppers.-Relates to machines for applying closures such as skirted caps to milk bottles and other containers, and consists in means for winding string upon the skirt of a cap previous to fastening the ends of the string and means common to the winding and fastening mechanism for operating the same in orderly sequence ; means are also provided whereby the receptacle to which the closure is to be applied sets the closure-applying mechanism in operation. The bottles 28, Fig. 25, are placed upon a stationary table 31 between the teeth 32 of a wheel 33 which places them in succession on a. spring-pressed bottlesupport 37. A disk 34 on the shaft of the wheel 33 carries a circular row of rollers 35 engaged by a cam 36, and the spring 38 of the support 37 rests upon a lever 39 operated by a cam 41. The shaft 51 of the cams 36, 41 is driven by sprocket gearing from a shaft 47 driven through spur gearing 45, 46 from the driving-shaft 43. A pin 52, Figs. 5 and 6, in a groove 53 in the shaft 47 has a portion to engage in a recess 54 in the wheel 46 and a transverse arm 63 held in engagement with an arm of a bell-crank lever 62 by a spring 64 secured to a collar 65 on the shaft 47. When a bottle is raised into the socket 57, which contains a follower 55 to hold the cap on top of the bottle, the lever 62 is operated through pins 56, 58 and a collar 61, and disengaged from the arm 63 so that the recesses 53, 54 are caused to register. When the bottle descends, the pin 52 is disengaged from the wheel 46 and the cap-applying mechanism is brought to rest. The hole 68 in the guide 69 partially collapses the cap shirts preparatory to the application of the string thereto. Fastening-elements 80, Fig. 11, are cut from notched sheet-metal 78 which is fed by pawls 76, 79 through a hollow block 72 secured to a sliding-bar structure operated by a cam-disk 66. The U-shaped cutter 83, Fig. 6, which cooperates with the edge 82 of the block 81, fixed with respect to the block 72, is actuated by a slide-bar 85, which is pivoted to the cutter and operated by the cam 66. While the members 81, 83 are in their rearmost positions, the cut-off metal portion is formed with a string-receiving groove 98 by means nf a lever 99, which comprises two adjustably connected sections and is pivoted on a pin 100 on a spring-pressed bar 101 which passes through a cam-plate 104 operated by a cam 107. The groove 98 is formed by the part 108 of the 'bar 99, which is moved upon its fulcrum 100 towards the block 81 bv means of a cam operating an arm which is pivoted at its front end to the bar 99 and pressed at its other end by a spring against the rear end of the bar 99. The spring bends the metal strip portion to form the groove, but yields when the fastening-element with a groove therein is collapsed into engagement with the string. The fastening- element is so located against the cap skirt that the string will be overlapped in the groove. During the forward movement that positions the fastening element against the cap skirt, the crimping-groove 120 will cross the string and overlie the fastening-element and the crimping- rib upon the cutter 83, whereupon these crimping-elements crimp the fastening-element and the string therebetween. The string passes from a bobbin 141, Fig. 25, through a fork 142 to a guide-wheel 143 and tubular guide 70. The end of the string is gripped between a lever 125, Fig. 5, and a 'block 127, and the guide 70 is rotated to wind the string around the cap skirt and into the groove in the fastening-element. The lever 125 carries a roller 126 which engages the sloping surface at the forward end of the bar 89 so that, as the bar moves forwards, the lever 125 is closed against the block 127. When the bar 89 moves rearwards, a nin 129 moves in the slot 123 in a block 122 carried bv the bar and moves the lever 125 away from the block 127. A knife pivoted at 132, Fig. 11, upon the cutter 83 cuts the string. On the forward movement of the block 81, cutter 83, and lever 99, the pin 100 rides in a slot in the centre and raises its cutting-edge; and on the rearward movement, the knife cuts the string. The sleeve 59. Fig. 25, is driven by worm-gearing 133. 134 from a shaft 135 which carries a worm 136 gearing with a mutilated worm gear 137. Elongated teeth 138 of the gear 137 engage in slots in the gear 136 and stop the latter and the parts driven thereby, so that the guide 70 is stopped over the pins 125, 127 while the fastening-device, is being applied and the string cut.