Improvements in or relating to stapling or discontinuous wire stitching machines

摘要

372,121. Stapling-machines. VICKERSARMSTRONGS, Ltd., Vickers House, Broad. way, Westminster, NASMITH, J. I., 12, Glenshiel Road, Eltham, and KIRBY, W., 21, Gerard Road, Barnes, both in London. May 30, 1931, No. 15919. [Class 89 (iii).] The movable wire cutter of a stapling or discontinuous wire-stitching machine is provided with several cutting edges, any one of which can be brought to operative position by reversing the cutter either longitudinally or transversely, and different portions of each edge can also be brought to operative position by a lengthwise adjustment of the cutter, neither adjust. ment requiring the use of any tool. As shown, the cutter A has cutting edges A1 .. A4, and is given an angular cutting motion by a bar C reciprocated by a cam C1. One end of the cutter is loosely engaged in a slot C3 in the bar C, and the other end is pivoted by a readily-removable pin E1 to a lever E pivoted at E2 to the machine frame, a pivot hole A5 being provided at each end of the cutter. The upper end of the lever E is engaged between collars F1, F2 on a screw F adjustable in a threaded hole in the machine frame. By removing the pin E1 and suitably reversing the cutter, any cutting edge can be brought to operative relation with the fixed cutter B. By adjusting the screw F, any portion of each cutting edge can be brought to such operative relation.