Patent GB-190412690-A (GB)
Title: Improvements in or relating to Machines for Making Box Blanks.
Inventor: BOULT ALFRED JULIUS
Filed: 1904-06-04
Granted: 1904-12-01
Abstract: 12,690. Boult, A. J., [Healy, W.]. June 4. Stapling.-Cleats and wires are stapled to boxblanks of thin wood and the like by the apparatus shown in the Figures. The cleats 85 are secured to the edges, and, if desired, at intermediate parts of the blanks 86, Figs. 38, 39, and 40. At the rear of the blank, in line with the cleats and at intermediate parts, are secured wires 87, the staples 66 serving to secure the wires sand cleats, or the intermediate wires or wire alone, to the blank. In the case shown, there are two edge cleats, and three wires at the back. When the wires and cleats are attached, mitres are cut out of the cleats, as shown in dotted lines in Fig. 39, and the blank is creased by means not forming part of the present invention to enable it to be folded into box form, the ends of the wires 87 which are allowed to project beyond the blank serving to secure the box. In saddles 4, Fig 3, which are vertically adjustable on a cross-bar 1 are cleat guides 8. The feed - shafts 12, 14, journalled in the standards a, b of the machine, also pass through slots in the saddles or yokes, the arrangement being such that by raising and lowering the saddles the cleat guides and lower feed-shafts 14 are raised and lowered in relation to the upper feed-shaft 12. On the upper and lower feed-shafts are laterallyadjustable feed-rollers 27, those on the upper rollers having grooves to receive the binding-wires 87. The feed - shafts, which are geared together, are actuat e d intermittently b y ratchet gearing through a rod 23 and an eccentric x on a sleeve l, Fig. 6, on the shaft k. The cleats, blank, and wires 87 being fed through the machine by the feed-rollers, the staples are formed and inserted by stapling-devices 35. These are carried on a reciprocating crosshead 31, actuated by eccentrics y, z on the shaft k. The head 31 carries a rod 51, Fig. 19, the lower end of which has a T-shaped head which moves in a guideopening 41, Fig. 21, in a faceplate underneath. The Grosshead also carries a bar 47 having a laterally-projecting staple-former or bender, and at the lower end a staple-driver. The wire 66, Fig. 19, for the staples is fed by grooved wheels 67, 74 through ratchet mechanism, a link 59, lever 57, and a cam 55 on the shaft k, Fig. 3. The wire 66 is fed along a tube 76, Fig. 21, and through an adjustable head 77 in which slides a vertically-moving cutterbar 78, which is lifted by the bar 47 and is returned by a spring. The wire passes through an aperture in this bar and is cut between a fixed edge and an edge on the bar when the bar is raised. The cut wire extends in a groove 88, Fig. 21, across a forming-opening in a plate 70, and above a staplewheel 43, Fig. 22, having radial slits 44 provided on opposite sides with staple-guiding grooves. The wheel is rotated intermittently by a spring sliding catch on the vertically-reciprocating bar 51, the catch engaging in the radial slits. The staple-former then bends the wire and forces it through the guides in the slit 41 which is uppermost. When, on the rotation of the wheel, the slit 41 reaches the opposite position, the driver engages with the staple and forces it through the blank &c., the staple being clinched by an anvil 30. To prevent staples from being inserted at the folding lines of the blank, the shaft k is thrown out of gear while the blank is being fed at these points through the stapling-mechanism. With this view, the shaft k is driven through a sleeve l, Fig. 6, which is held between collars p, q secured to the shaft. Journalled in the collars is a rocking shaft r, which is reduced between the collars to a semicircular section. In the sleeve and shaft are corresponding recesses, so that, by rocking the shaft through a crank s, the shaft r will engage in the recess in the sleeve to put the shaft k into gear, or in the recess in the shaft k to put it out of gear. The crank s, which is normally held in position by a spring u, Fig. 11, to put the shaft k into gear, is moved to throw the shaft out of gear by a cranklever 97, which is automatically thrown into the path of the crank s by means of a ratchet-wheel 91, operated by the eccentric w on the sleeve l, through a rod 102, the disc having adjustable blocks 94 so located that at the desired times they operate the lever 97 through the arrangement shown.