Patent GB-190821354-A (GB)
Title: Improvements in and relating to the Creasing or Pleating of Paper and the like and the Manufacture therefrom of Compound Sheets for Packing and other uses.
Inventor: HEISER CHRISTIAN ROBERT
Filed: 1908-10-09
Granted: 1909-10-11
Abstract: 21,354. Heiser, C. R. Oct. 9. [Patent of Addition to No. 15,191, A.D. 1908.] Pleating.-A machine for pleating or creasing paper or other fabric for use in packing confectionery, fruits &c., of the kind described in Specification No. 15,191, A.D. 1908, is arranged to produce the paper continuously and to retain the pleats or folds formed by the two co-acting sets of bars by means of a backing which is gummed by the machine, and the finished product may be delivered in sheets or wound on a roll. As shown, the paper &c. a, Fig. 1, is led over a guide roll 2<a>, which may be fitted with a check spring or other feed-controlling means, and between two sets of bars c, d, the upper set being carried by bands 2 carried round rollers 3 and fitted with guide-rods 4, 5, and the lower set being fitted in guideways in a platen 7, which is raised and lowered by cam and lever mechanism 8, 9, 10, 12 so as to cause the bars to grip the paper. The upper set of bars consists of a series of members c' ... c<9>, Fig. 4, of which each member c<2> is fixed by screws to the bands 2, and the bands pass freely through the other members, which are normally pressed apart by springs to an extent which depends upon the adjustment of screw-actuated flexible wires. The lower set of bats comprises members d ... d<10>, which are similar to and are spaced apart similarly to the upper members. The members d<1> ... d<8> co-act with the members c<2> ... c<9> to grip the paper as the platen rises to its high position, and the members d<9>, d<10> co-act with the first two members c<1>, c<2> of the next series of members c' ... c<9>. The members d' ... d<10> are of sinuous formation, as shown in Fig. 7, so as to prevent the paper from getting between these members. The members c, d are faced with vulcanite &c., so as to grip the paper securely, and are fitted with pins and dowels which interlock in the gripping position. The paper is fed forwards, and the blocks c, d are moved together by means of rods 27, which are reciprocated by an adjustable cam 23 and link mechanism 24, 25, 26. The block d<8> is fitted with a knife. 54, which severs a sheet from the web before the bars c, d are moved longitudinally. The web of paper is then caused to be gripped between the members c<1>, c<2> of the next series of bars by mechanism actuated from the rods 27. This mechanism, as shown in Figs. 12 and 14, comprises spring-controlled levers 62, which normally engage stops 64, 65 on the blocks c<1>, d<9>. As the rods 27 move to the left, spring-controlled detents 56 carried by arms 55 on the rods 27 actuate spring-controlled levers 59, which move a plate 61, to which the levers 62 are pivoted, to the right, and the blocks c<1>, d<9> are thus moved to the right, and the web gripped between the bars c<1>, c<2>, which become-locked by latches 40 and spring-controlled bolts 41. As the block 61 continues its movement, surfaces 67 draw the levers 62 together, and the blocks c<1>, d9 are released from the levers and are free to be moved forwards to carry the web over the bars d, ready for a second pleating and severing operation. The detent 56 is tripped by a stop, and the levers 62 return to their normal position under the action of springs. The continued motion of the arms 27 causes spring-controlled stops 70, 71 on arms 69 of the arms 27 to engage projections 72, 73 on the bars c9, d<8>, respectively, and the bars are thus moved into contact with each other the paper being forced between the bars c and gripped to produce folds or pleats of the kind shown in Figs. 20 and 21, the latter being especially adapted to grip articles when packed. As the members c<1> ... c<9> close, they are locked together by latches 40 and spring-controlled bolts 41. The platen 7 descends when all the folds are produced, and the bars are thus freed from the stops 71, and the members d' ... d<9> return to their normal position under the action of the weight 46 and cord 47, which passes freely through the blocks d9, d<10>. The continued motion of the bars c moves the band 2 and draws the next series of bars e and the web into position for the next operation ; and the bars also cause the creased paper to adhere to a web b gummed by a roller 14 and forced by a spring saddle 16, Fig. 17, into contact with the creased paper. The bars c depress a projection 74 on a spring-controlled knife 75, which rises to sever the backing after the bars c pass, and the backing is then held to the saddle 16 by a spring clip 77. The compound sheet may then have the creases pressed flat by rolls 18, be severed into strips by adjustable rotary knives 20, and delivered by a conveyer 19. The bolts 41 of the bars c are unlatched by an inclined projection 43, which engages pins 42 on the bolts. A continuous web may be treated, in which case the knives 75, 54 are dispensed with. The rows between the plates of the finished product may be fitted with thin strips of the finished product to form a series of pockets for wrapping articles separately. Drying-means for the adhesive may be provided. According to the Provisional Specification, paper may be fed to the machine in the form of sheets, and the severing- knife for the backing-paper may be cam-actuated.