Patent GB-190009606-A (GB)
Title: An Improved Method of and Apparatus for Producing Fasteners from Metal or Wire and Inserting them in Leather Goods and the like.
Inventor: CASGRAIN LOUIS AMEDEE
Filed: 1900-05-24
Granted: 1901-05-18
Abstract: 9606. Casgrain, L. A. Oct. 26, A.D. 1899, [date applied for under Sec. 103 of Patents &c. Act, A.D. 1883]. Nailing; stapling and like wire-stitching; nails; staples.-Relates to machinery for making and inserting into boots &c. the fastener described in Specification No. 9608, A.D. 1900. Fig. 23 shows the fastener, and Fig. 18 shows the form it takes when driven in and clinched. Fig. 1 shows the upper part of the forming and inserting machine, but the fastener may be made in one machine and inserted in another. The work, such as a boot X, is supported on the horn A<12>, pivoted at 13 to the part A<15> carrying the rod A<9>. This rod is inclined to the driver b<10>, to ensure proper clinching. A spring pawl A<17> locks the horn in position. The rod A<9> is engaged by a lever a<6> pivoted to a rod a<8>. The lever allows the horn to be depressed, and presses it upwards when the fastener is being driven. This is effected by an arm which presses on the spring a<10>. The arm is actuated by a piece F to be described. The head A' is carried by an upright A' adjustably bolted to the standard A. The parts A, A' are of V-section, bearing on one another at three points only, instead of along their whole surface. The main shaft C is connected to the driving-pulley by a clutch in which is a bolt operated by the bevelled arm of a lever pivoted at C<9> and operated by a lever pivoted at D' and connected at D' to the treadle-lever D'. The main shaft carries a disc C<1>, the edge and both faces of which act as cams. Figs. 26 and 26<A> show in elevation and plan respectively the dies &c. for forming the fastener g<6>, Fig. 26. The wire b<1> is fed between the parts c<3>, c<4>, and the part c<3> is pressed towards the part c<4> to clamp the wire by the cam-actuated lever n. The shaper m now moves vertically to bend down the shank. The cutter h next moves laterally, to shear the wire on a diagonal line and push the blank across a vertical rib g<1> on the piece c<4>. This rib acts as an anvil, across which the blank is bent by the vertically-reciprocating bender m<1> made in a piece with the shaper m. The cutter, advancing still further, pushes the fastener off the anvil to a point vertically over the channel 30 in the nozzle b through which the fastener is driven by the driver b<10>, Fig. 1, which reciprocates in the groove m<2> between the parts m, m<1>. The driver b<10> is fixed to a bar which slides in a sleeve in the head A<2>, is drawn up by a bail B<3>, and is forced down by a rod (not shown) in the same place as the bail. Both bail and rod are connected to the lever B', which is raised by a cam b<14> and pressed down by a spiral spring, the strength of which may be varied by adjusting the disc B<6>. Buffer discs b<5> are placed as shown. The die h is fixed to an oscillating piece F, and the piece m is fixed to a vertical rack sliding in the piece F. The piece m thus has a motion horizontally as well as vertically. The rack is actuated by a sector on the cam-actuated lever h<16> pivoted at h<17>. The piece F swings on a pivot h<3>, and is operated by a cam. The wire is fed between discs c<1>, c<2>, Fig. 31, in front of which a perforated arm may be arranged for curving the wire. The disc c<2> is carried by an eccentric stud c<6>, which may be turned by hand, while the disc c' is fixed to a sleeve c<8>, which is itself fixed to a ratchet-wheel c<9>. Pawls to engage with the wheel c<9> are carried by the disc C<13>, oscillated by a rack engaging with teeth on this disc. The rack is attached to a lever E, which is pivoted at C<9> and actuated by a cam. The feed is varied by shielding the ratchet-wheel more or less from the action of the pawls. The shields e<8> are carried by a disc e<12> actuated by a rod e<25>, Fig. 1. The thickness of the work alters the position of the horn, and thus of the rod a<8>, Fig. 1, to which is connected a wedge a<20> acting on a lever to which the rod e<25> before mentioned is attached. The wire feed thus varies automatically as the thickness of the work varies. The shields may also be moved by hand. The disc e<12> is locked after adjustment by a pawl e<15>, which is set free at intervals by the oscillation of the part F. The work is fed by a wheel d<4> carried by a lever, the position of which can be varied by a cam w<20> acting against the lever. This apparatus regulates the distance of the fasteners from the edge of the work, and can be used in other types of machines. The wheel d<4> is operated by an oscillating disc d, connected to the wheel by a clutch. The disc is connected by adjustable links to the arm c<15>, Fig. 31, of the shaft c<14> fixed to the disc c<13> abovementioned. A device is described by which long or short fasteners may be driven irrespective of the thickness of the work. The device consists of two arms connected to the pawl shields e<8>, Fig. 31. Each arm is connected to a separate starting-lever connected to a separate treadle. The treadles have foot-plates in two positions, so that the workman may face the front or side of the machine. A brake is arranged to act on the cam C<1> so that the machine is stopped in a definite position. The brake is pressed down by a pin on the shaft C<9>, and is raised by a flat on the shaft acting on spring fingers supporting the brake.