Patent GB-190322068-A (GB)
Title: Improvements in Paper Box Machines.
Inventor: GAY CHAUNCEY WOLCOTT
Filed: 1903-10-13
Granted: 1904-06-02
Abstract: 22,068. Gay, C. W. Oct. 13. Making paper boxes.-Blanks of cardboard or similar material, suitably scored to facilitate folding, are gummed and folded into boxes by apparatus such as that shown in Figs. 1, 3, 4<a>, and 5. The blanks are piled within adjustable gaugeposts 20, the forward middle portion of the lower blank resting on a narrow block 23, and the rear portion of the blank on strips 24 having shoulders 25. The strips are mounted on a reciprocating carrier, by which the lower blanks are fed in succession between feed rollers 35. One of the rollers has an extension which receives gum from a gumming-trough to gum one edge of the blank, the extension being separated from the remainder of the roller by a groove, to prevent the gum from spreading to the other part of the roller. From the rollers 35, the blank passes to supports or rails b, b<2>, having stops b<3>, Fig. 3, the rails b<2> being in two parts, as shown, to permit of the removal of the finished box. Above the blank, when in position on the rails, are brought rods or blades d mounted on a carrier 54, which is reciprocated to bring the blades over the blank and to withdraw them from the folded box to permit of removal. The blades coincide in position with two of the scoring-lines, and along these lines the flaps or parts a<2>, a<3> are folded over the blades. The wide gummed flap a' is first folded by means of a rod f mounted eccentrically on a pinion and parallel with its axis. Over this the gummed flap a<3> is folded by means of the device shown separately in Fig. 4<a>. The carrier arm g mounted on the oscillating shaft 77, and provided with a jaw 82, has an arm 80 to which a lever h having a jaw 83 is pivoted. The lever h has at its end a roller 87, which moves on a cam i having a hump, or projecting part, 89 provided on its face with a groove 92. To the part 89 is pivoted a pawl 93, which serves as a bridge for the roller 87. The shaft 77 being oscillated to the left, the roller 87 rides along the bridge to the projecting part 89, thus opening the jaws against the force of the spring 85, the upper jaw 83 serving to fold the flap a<3> on the flap a'. At the end of the part 89, the roller 87 falls to the level of the groove 92, thus allowing the jaws to close on the fold. The shaft 77 being then oscillated to the right, the roller 87 passes along the groove 92, and, tripping the pivoted bridge or pawl 93, along the middle, inoperative, portion of the cam, until reaching a slightly raised part 90 of the cam, the jaws are again opened. Before this movement to the right, the blades are withdrawn from the box, so that the latter is carried by the jaws during this movement to a trough j, in which it is deposited when the jaws are opened. The trough which consists of adjustable sides and a bottom part slitted in front, is provided with a weighted follower 108, which presses the deposited blanks towards the front. The released blank is engaged at the top and bottom by arms 105 on oscillating shafts 106, which press it towards the follower 108, being held in position by catches or pawls 107. The trough moves on a dovetailed guide 134, to permit of lateral movement by a cam device, so as to place the boxes in stepped series to facilitate counting. The various movements are effected by cam and rack-and-pinion &c. gearing.