GB262283A - Improvements in tacking or stapling appliances - Google Patents

Abstract

262,283. Feldman, E. D. Jan. 4, 1926. Stapling, hand tools for.-In a hand-tool for stapling, the entire mechanism for holding, feeding, and severing a wire, for shaping and driving the staple, and for clinching its legs is mounted within the jaws and legs of a pliers-like device. A bracket 10 supporting a wire reel 8 is removably held against a pin 11 by a spring 12. The lower jaw 2 of the device has an opening 4 for the work with clinching recesses, and is pivoted at 3 to the upper jaw 1. When the legs 1, 2 are forced together against a spring 15 a pivoted casing 7 is moved down to grip the work and the engagement of an arm 13 of the bracket 10 with a surface 14 rocks the reel 8 outwardly to unwind a staple-length of wire. The end 21 of the wire passes through a guide 78 to a fixed spring- pressed pawl 22. Fig. 8, so mounted as to prevent the withdrawal of the wire and thence to a slidingly mounted pawl carrier 26 arranged to draw the unwound length of wire into the device. The carrier 26 is normally urged to the left by a spring 28 and is moved to the right, to pick up a length of wire, by the engagement with an extension 27, of the carrier 26, of the end 38 of a bell-crank lever 35 pivoted to a lever 30 and rocked when the legs of the device are forced together. Release of the legs then allows the spring 28 to feed the length of wire below the cutting and bending devices. The feeding members 22, 26- may be rendered inoperative, when the wire reel is to be renewed, by finger lever 41 which operates a member having wedge-extensions 43 which engage the ends 22<1> of the feed pawls and open the pawls. The legs 1, 2 may be held together at this time by a latch. The staple forming and driving mechanisms are mounted in the casing 7. A driver 47, Figs. 8 and 10, is slidable in guides in a slidable bending member 40. A recess 48 in the member 40 is engaged by the circular end of a lever 50 having an angular slot 51 in which engages a pin 53 passing through the driver 47 and the before-mentioned lever 30. When the lever 30 is lowered on closing the legs 1, 2 the driver and bender are lowered together until the latter has shaped the staple, when the lever 50 is rocked bv suitable stops so that the pin 53 passes into the vertical leg of the slot 51 and the driver descends alone. The bender is formed with a cutting edge and shapes the staple over an anvil 59 which is subsequently pushed out of the way by the action of a cam-surface 66. A premature feed of the wire before the driver and bender have returned to their highest position is prevented by interengaging members 68, 73.