Patent GB-190817123-A (GB)
Title: Improvements in Machines for Hinging Boxes, Boards and the like Together Generally.
Inventor: ALLISON CHARLES ARTHUR
Filed: 1908-08-14
Granted: 1909-05-13
Abstract: 17,123. Allison, E. A., [General Package Co.]. Aug. 14. Stapling.-A machine for hinging boxes or boards comprises a sloping table, hinged to an adjustable support and adapted to clamp the work between fixed and adjustable abutments, and two sets of staple-feeding and stapledriving devices acting in planes at right-angles to one another to drive a series of interlocked staples into the work. The mechanism is intermittently operated, and the work is released after each cycle of operations. The work, for example two boards x, y, Fig. 3, is placed on a table 2, which is hinged to a support 3 at 4 and is fitted with rollers 2<a>, Fig. 1, for engagement with the floor. The staple - driving &c. mechanism is disposed on a head 30 having a sloping face E which forms a fixed abutment for the edges of the boards. Before starting the machine, the work is adjusted on the table 2 by means of a movable stop 2<b>, and with regard to the abutments by means of a cam 13 (shown in dotted lines) loose on a shaft 12 and operated by a hand-lever 14. The cam engages a roller 10 provided on a carriage 6 arranged to slide vertically on guides 7 fixed to the frame of the machine. The carriage 6 has an horizontally movable slide 5 in which the support 3 is vertically adjustable by means of a screw 8. A screw 9 adjusts the position of the slide 5. An adjustable abutment A' co-operates with the rising table to fix the position of the work relatively to the staple-driving mechanism. The support 3 may be clamped to the slide 6 by a hand-nut 3<d>. The roller 10 normally rests in a notch 11<a> in a cam 11 fixed to the shaft 12 for the purpose of automatically raising and lowering the table. The shaft 12 is geared to a shaft 18, which is intermittently operated by a clutch. The staple - driving mechanism is driven by an oscillating shaft 25 driven from the shaft 18. A three-armed crank 26 operates slides 28, 47 which carry adjustable staple-drivers 32, 45, Fig. 3. The vertical staple-driver 32 has a follower 34 detachably connected to it and adapted to support the lowest staple on the track 35 during the driving of a staple. A detachable plate 37, clamped to the frame, retains this follower in place and covers the lower end of the staple track. A spring-supported lever a holds the lowest staple in the path of the driver before its descent, and is pushed aside when the driver descends. A staple-carrier or presser 33 receives the staple from the raceway, and is reciprocated so as to engage the points of the staple before it leaves the raceway and to move with it down on to the work as the staple is driven home. The horizontally-driven staples are led in an upright position by a track 35<c> to a finger 50, Fig. 10, carried by an oscillating plate 48, which turns the staples into the horizontal position. The plate 48 is adjustably fixed to a spindle 49 which is oscillated by the slide 47, Fig. 3, through a crank 60, Fig. 5, an adjustable rod 60<a>, a crank 61, a shaft 62, and a crank 63, Fig. 3. The lower end of the crank 63 carries a projection 63<a>, which is engaged by the wedge-shaped end of a bar 67 on the rear side of the slide 47 during the driving stroke of the latter, and is thereby lifted to its upper side, rotating the plate 48 in so doing. At the end of the stroke the projection 63<a> clears the bar 67 and the spring 61<a> returns the plate 48. The bar 67 is loosely mounted by pins 67<a> in slots 47<a> so that the projection passes under the rod 67 on the return stroke. When the plate 48 moves into the position shown in Fig. 10, the finger 50 is pushed forward by a fixed stop 50<c> and snaps into the loop of the lowest staple on the track 35<c>. A plate 73, pivoted to the oscillating plate 48 and supported by a guide 71, serves to prevent any tendency of the staple to fly off the finger 50 during its circular motion. A spring 72 places the staple in alinement with the driver 45 and with a passage in a staple-carrier or presser 44, which is reciprocated by the same means .and in the same manner as the presser 33. The driver 45 pushes the finger 50 aside as it passes. To adjust the parts in relation to the staple loop in the position shown in Fig. 10, an adjustable stop 65 engages the crank 60. The pressers 33, 34, Fig. 3, are operated by the following means : A disk 75, Fig. 5, journalled on the frame 30 has pins 75b, 75 projecting into the rear of each presser through slots in the frame and is oscillated by adjustable means on the shaft 25 through a lever 78. These means consist of dogs 79, 80 carried by collars 81, 82 adjustable around the shaft, and adapted to engage teeth 78b, 78<a> on the lever 78. These teeth are arranged in different planes to corresponding with their co-operating dogs, and are so shaped as to cause the dogs to lock the lever 78 in the extreme position to which each, in turn, has moved it. Thus, each presser is held in contact with the work during the driving of the corresponding staple. By adjusting the angular relation of the collars 81, 82 around the shaft 25, and correspondingly adjusting the dogs to engage their teeth by means provided, these pressers may be moved towards the work earlier or later with respect to the drivers according as the staples are long or short. The machine is operated intermittently through a clutch, shown in Figs. 14, 15 and indicated in Fig. 1. Power is supplied through a belt and gear to a driving- member 19 loose upon the shaft 18 and having internal projections 19<a> adapted to be engaged by a dog 19<b> carried by a collar 18<x> fixed to the shaft 18. A spring 19<c> tends to engage the dog with projection 19<a> but is prevented by an arm 23, a part of which stands in the path of the dog 19<b>. The arm 23 is mounted on rods 21, 21<a> and is pressed into the engaging position by springs. To start the machine for one revolution, pressure is momentarily applied to the treadle 24b to operate a bell-crank 24, which frees the dog 19<b> and allows the clutch to engage.