Patent GB-354817-A (GB)
Title: Improvements in and relating to fastening devices for cases, bales and the like
IPC: B65B13/28
Filed: 1930-05-13
Abstract: 354,817. Wiring bales &c. BUSTINDUY & BERGARECHE, 14, Calle de Arragueta, Eibar, Guipuzcoa, Spain.-(Assignees of Bustinduy, M. and Bergareche, J. A.; 14, Calle de Arragueta, Eibar, Guipuzcoa, Spain.) May 13, 1930, No. 14729. Convention date, May 13, 1929. [Class 45.] In an apparatus for wiring bales &c. wherein the straining of the wire is effected by movement of a lever in one direction and the twisting and cutting operations and the resetting of the apparatus by the reverse movement of the lever, the operating lever 35 is loosely mounted on a shaft 3 on which pinions 4, 5 are also loosely mounted. The pinion 4 is rotated in a counterclockwise direction, Fig. 4, by the engagement therewith of a spring-pressed pawl 42 pivoted to the lever 35. The pinion engages a rack 8 to which one end of the wire is anchored between clamp ing members 13, 14, Fig. 1, the other end of the wire being anchored between stationary clamping members 16, 17. Movement of the clamp 17 to anchoring position permits a lever 18 to fall under gravity, so that a projection 18<1> thereon prevents the wires from leaving the slotted twisting pinion 48. Rotation of the slotted twisting pinion is effected by the clockwise, Fig. 4, or counterclock, Fig. 1, rotation of the pinion 5 which is effected by the engagement of the nose 341 of a pawl 34 pivoted to the lever 35 with one of a pair of diametrically spaced notches 33, Fig. 4, in the pinion. The operating lever is provided with a rod 36, Fig. 1, connected to a small lever fulcrumed at 40, Fig. 6, on the upper face of the operating lever, a spring 37, Fig. 1, normally keeping both arms 39, 41 of the small lever out of contact with the pawls 34, 42. When the rod 36 is depressed by pushing on the knob 38, the arms 41, 39 of the small lever engage noses 44, Fig. 4, 47, Fig. 1, on the pawls 42, 34 respectively to swing and hold the pawls out of engagement with the pinions 4, 5 so that if one throw of the operating lever does not tension the wire sufficiently the rod 36 may be depressed and the operating lever swung in the reverse direction without effecting movement of the twisting pinion which would otherwise occur, so that on the release of the rod 36 and subsequent effective movement of the operating lever the wire may be tensioned further. The rack is held during such idle movement of the operating lever, and during the twisting operation by the engagement of a stationary pawl 21, Fig. 4, therewith. On completion of the tensioning and twisting movements of the operating lever the pawl 42 is withdrawn from engagement with the pinion 4 by the engagement of its tail 45 with a pin 30, Fig. 9, carried by the cutter 23 and pressed by a spring 31 into contact with the face of the pinion 5. The operating lever engages and depresses the cutter and a lug 53, Fig. 4, on the lever engages and releases the pawl 21 so that the rack, the pinion 4 having been released from the pawl 42, may return to its initial position under the action of a spring 11. A cushioning spring 10 is provided. To prevent overtwist, the spring-pressed pin 30 engages in one of a pair of diametrically spaced notches 32 in the pinion 5 when the slot in the twisting pinion 48 coincides with the groove in the machine frame through which the completed tie is withdrawn.