GB190708166A - An Improved Machine for Manufacturing Grooved Pins or the like. - Google Patents

Abstract

8166. Jones, H. Sefton-. [McLellan, H. R.]. April 8. Wood-screws. - Grooved pins for locking nuts (such as shown in Fig. 35 and described in Specification No. 7559, A.D. 1904), wood-screws, &c. are made from wire which passes through a straightening-device D, is fed by rolls E, F through a tube 13 up to a stop secured in a recess 18 in a block J, and is cut into lengths at the end of the tube 13 by a shear-blade 14 secured in a recess 15 in the block J. The blanks drop into a magazine K and thence on to two weighted fingers 26, 27. When a flat 34 on a roll L comes adjacent to a blank, the blank is carried down between the fluted roll L and segment M and before leaving the same has its ends trimmed by cutters 38 on shafts N which are rocked at the proper times by crank-arms 41, 42, and a cam 44 on a rod 45 reciprocated by a cam on the main shaft C. This shaft carries a pinion 48 gearing with a wheel 47 on the shaft of the roll L a disk g carrying wheels e gearing with a fixed wheel i and a pinion d on the belt pulley c, and an eccentric for oscillating the shaft G carrying the block J. The feed-wheel E is intermittently rotated by ratchet-mechanism from the shaft G, and a pusher-bar working in the magazine is reciprocated by an arm 23 on the shaft G. If the magazine becomes choked, its flexible top is lifted and then makes contact with a rod 51 forming part of an alarm apparatus carried by the block J. The rolls m, n of the straightening-device are mounted on disks j which are simultaneously rotated for adjustment purposes by means of a rod screwed at the end and a hand-nut v.