Patent GB-190517199-A (GB)
Title: A New or Improved Machine for Fixing Staples and for Kindred Purposes.
Inventor: MALLINSON RALPH
Filed: 1905-08-25
Granted: 1905-10-12
Abstract: 17,199. Mallinson, R. Aug. 25. Stapling.-Relates to a machine for feeding, bending, and stapling the loops of the buckle fastening described in Specification No. 20,499, A.D. 1904, and applicable also for other purposes. The machine is driven either by the hand-wheel 3 or by the friction gearing 4, 9. In order to stop the machine at the end of each cycle of operations, the fast and loose pulleys 5, 6 are mounted on a pivoted counterpoised lever, and the cam 10 on the shaft of the pulleys 5, 6 engages the projection 11 on the wheel 4 to swing the part 9 of the pulley 5 out of engagement with the wheel 4 after each revolution. The machine is re-started by turning the hand-wheel 3. The strips for the cross loops are fed from the magazine 12 by means of the slide 17. An L-shaped metal plate 22 is placed in front of the hopper to prevent the passage of more than one strip at a time, and to keep the strips steady in their advance. This plate is furnished with a spring arrangement at its upper end which adjusts itself slightly to the thickness of the strips. The strap with buckle inserted is placed by hand on the table 23, which is then lifted by the slide 24, until the strap is gripped between the table and the fingers 27. The loop is formed in the following manner : The slide 28 carries two hinged arms 29, each arm being furnished with a catch-plate 30 and a spring finger 31 adjustable in grooves in the arms 29. A spring 32 tends to draw the arm together, the motion being normally prevented by the cross-piece 33 which separates the catch-plates 30. The rod 34 pulls down the slide against the resistance of a spring 37, and the fingers 31 press the ends of the strip of leather below the table 23. Holes are pricked through the strip and the main strap by needles 43 on a lever 42 pivoted to the slide 44, Fig. 2. A cam on the main shaft 2 depresses the bell-crank lever 45, Fig. 2, which engages a pin on the slide 44, pushing forward the slide and pricker lever 42, until the boss 47 on the latter enters the jaw 48 of the lever 49. A cam 50 on the main shaft then turns the lever 49 until the jaw 48 acting on the boss 47 turns the lever 42 on its pivot, the boss 47 coming into the slot 52. The wire for the staples is drawn off a drum 54 by an oscillating lever 55 working on guiderods 56, 57. Fig. 4 shows the mechanism employed for feeding the wire. A lever 61, actuated by a cam 60, engages a spring piece 63 and presses together the pieces 64, 65 which grip the wire. To prevent wear of the surfaces, two hard steel blocks 66 are inserted. The length of wire used for the staples maybe regulated by means of a screw 93, Fig. 1, which varies the throw of the lever 55. The wire is gripped between the jaws 67, 68, and passes on across the cutter block 72 and under the crown 73, where it is severed by a knife 74, moving in a groove in the adjustable block 72. The wire is bent into the form of a staple round the crown 73 by fingers 82, which rise more quickly than the carriage bearing the crown 73. The tongue 81 forces the staple into the holes in the strap. The staples are bent down on to the strap by the fingers 27, which are embraced by the loop and move towards each other. In order that the staple may be clinched without crumpling the strap, a metal strip 94, Fig. 2, flat on the underside and rounded at each edge, is placed between and supports the projecting ends of the staple. The strip 94 retires as the fingers 27 close. The various parts are operated by cams on the main shaft 2, and the return motions are effected by springs.