Patent GB-376762-A (GB)
Title: Improvements in and relating to the filling, closing and sealing of flexible containers for liquid
IPC: B65B3/00
Filed: 1931-04-02
Abstract: 376,762. Filling and closing flexible receptacles for liquids. ANGEL INTERNATIONAL CORPORATION, 230, Park Avenue, New York, U.S.A.-(Assignees of Jones, E. L. ; 89, 209th Street, Bellair, New York, U.S.A.) April 2, 1931, No. 10052. Convention date, July 19, 1930. [Classes 94 (i), 94 (ii), and 125 (ii).] The apparatus fills, closes, and secures receptacles for liquids having flexible walls by squeezing together the marginal portions of the opening and applying a closure member of V-shape cross section. The closure member has one side longer than the other, the projecting portions being turned about to embrace the shorter portions. Filling. Six receptacles R are positioned by hand on a table 80a, Fig. 59, beneath filling apparatus F, and in register with a series of outlet nozzles 101, Fig. 62. The nozzles are connected to flanged sleeves 101a extending through the bottom of the tank, and carrying tubes 101b upon which measuring devices or dippers 101c are reciprocated by links 102 connected to a rocking system on a shaft 102e. The charge of liquid passes down the tube 101b and through a series of slots 101e into the receptacles. The receptacles are thereupon moved by a transfer frame 81, Figs. 1 and 59, on to a conveyer 76, on which they are held by spring fingers 76d. During the period of transfer, drippings from the nozzles are caught by a pan 103, which is moved in slides 103a by links 103b, 103c beneath the nozzles. Closing receptacles. The conveyer moves the receptacles beneath closing mechanism G, Fig. 1. At this point, gripping fingers 87f, Figs. 4 and 16, mounted on a vertically-moving plunger 87, pass through an aperture in the conveyer, seize the base of the receptacle, and lift it so that the open end is stationed between slides 84d, Fig. 32, which close together and collapse the end. A closing member 96, Fig. 32a, is next applied-to and secured on the end. The slides 84d are mounted in main slides 84 and have relative movement with relation thereto by means of blocks 84e sliding in recesses 84f, the slides being urged forward by springs 84h. The actuating mechanism comprises levers 86, 86<1>, Fig. 16, connected to the slides by blocks 86c loose on a pin 86d on the slides, and rocked about pivots 86b by the engagement of pins 86f in grooves 86g of cams 86h. As the receptacle is lifted, the slides 84 approach each other, gauge members on the sides ensuring correct positioning. A strip W to form the closure is fed between wheels 88c, 88d, Figs. 4 and 30, towards punching mechanism 89a, 89b which cuts out recesses 89d, 89e, Fig. 31, and mechanism 94b, 94d, which bends it into an inverted V-shape, and through a guide 95, 95a into position over the top of the receptacle R, a knife 95c severing the member from the strip. The wheel 88d is peripherally flanged to form a guide and the wheel 88c comprises spaced discs, of which one is roughened to facilitate the feeding and the other is formed so as to make impressions in the strip. The strip is delivered to the punching mechanism G, Figs. 1 and 4, comprising a die 89, Fig. 25, having guide openings 90a, 90b for engagement by punches 89a, 89b carried by a head 89c. The carrier block 90 is slidably mounted and is reciprocated in a direction parallel to the strip. The punch is actuated to cut the strip at the termination of the retrograde movement of the carrier block, and is retained in engagement with the recesses in the strip during the advance movement so as to positively feed the strip. The punch is actuated by a cam-groove 92/, Fig. 4, engaging a roller 92e on slides 92, lugs 92h, 92g on which contact with an arm 92i connected to the punch. The recessed strip is now fed to the bending mechanism, which comprises a die 94b with a longitudinal rib on the top face, and an upper die 94d having a corresponding recess. The upper die is vertically reciprocated by toggle mechan:ism comprising a cam-operated arm 94l connected by a link 94o to toggle arms 94h, 94/, and the formed strip passes through a guide 95, 95a towards the receptacle. Applying closing strips. A cutter 95c, mounted on one of the slides 84, severs the closing-member from the strip and leaves it in position over the collapsed end of the receptacle, with the ends 96b of the longer leg extending beyond the opposite sides of the receptacle. The clamping jaws 84<1> now close together and secure the member to the receptacle. The jaws are arranged with a rib and a corresponding recess so that the resulting cross section is as shown in Fig. 45. Simultaneously, the extended lugs 96b of the member are folded back at right-angles by the cutter 95c and a plate 95e on the other side of the slide. The receptacle is now lowered on to the conveyer and transported to station H, Fig. 1, at which the lugs are folded round to embrace the opposite leg. The receptacle is again raised, by a plunger 98, Fig. 39, so that the top projects through a slot in a plate 97g in a head 97 which descends upon the receptacle. A member 97p formed with a cam groove, is now operated to cause rollers 97n, Fig. 42, to pass inwards and to flatten the lugs 96b, a bar 97d, conforming to the general surface of the closing member, acting as a backing during this operation. The receptacle is lowered back on to the conveyer, and, at the next station, is thrust on to a, delivery table by a slide 100.