Patent GB-190423301-A (GB)
Title: Improvements in Nail Making Machines.
Inventor: DORMAN WILLIAM HENRY
Filed: 1904-10-28
Granted: 1905-09-14
Abstract: 23,301. Dorman, W. H., and Townsend, A. P. Oct. 28. Nails, making. A hob nail, having triangularsectioned projections 3, 4, Fig. 1, on the sides of its shank, is made in three stages by the machine illustrated, which machine simultaneously operates on three nails, and when suitably adjusted and provided with other dies may be used for making other kinds of nails, such as the one shown in Fig. 31, which has an elongated head 165 with depending spikes 166,167 at its ends. A continuous length of wire 6, Figs. 5 and 13, is intermittently fed through a stationary die 8, having a stepped upper face 41,42, by two grippers 14, 15 which are reciprocated by sectors 9, 10, a rod 22, lever 19, cam 16, and a spring 24, and are moved towards and away from each other at the proper times by levers 30, 34, a rod 33, and a cam 36, as described in Specification No. 17,120, A.D. 1902. Side dies 48, 49, fitting the step of the die 8, are then closed to form partly the projecting side of the wire into the nail shank by toggles 68, 69, a rod 72, lever 71, and a cam 70, and the dies 48, 49 are moved sideways on the die 8 to shear the blank from the wire 6 by the camgrooved lever 79, a rod 78, lever 77, and a cam on the middle shaft 17 of the three cam shafts 67, 17, 66. Just before the nail is released by the dies 48, 49, it is gripped by. the fingers 53, 54 Fig. 15, raised, transferred by the lever 84 under the first heading-die, lowered into the dies 55, 56, Figs. 11 and 16, and released. The shaft 85 carrying the fingers is raised and lowered by levers 100, 103, a rod 102, and a cam 104, and is oscillated by a pinion 87, a rack 86, lever 88, and a cam on the shaft 67. The movable finger 53 is operated by a cam, rod 106, rock-shaft 96, and a lever and link 95,94, the joint pin 108 of which is aligned with the shaft 85 when the fingers are closed. The dies 55, 56, Fig. 16, are operated by toggles, one link of each pair being fixed on one of the shafts 112, 113, which are oscillated by sectors 118, 119, racks. levers 120, and cams 122. The part 46, Fig. 11, of the blank to form the head is pushed in line with the shank by a pusher 57, toggles 126, 127, a rod 125, lever 124, and a cam 123, and the head is then upset by the first heading-die 58, slide 129, and the cam 132. The nail is transferred from the dies 65, 56 to the dies 62, 63, Fig. 27, or, as described, half-way to a holder 60, Fig. 15, and from there to the dies 62, 63 by fingers 61 which are opened and closed by cams on a rock-shaft 143, a rod 145, lever 146, and a cam 147, and are moved along the bar 134 by a rod 137, lever 136, and a cam. The bar 134 is rocked about the holder 60 by a rod 154, lever 155, and a cam 156, to bring the nail into contact with the die 63, which is fixed, the die 62 being operated by the toggles 149, 150, rod 151, lever 152, and the cam 153. The nail head is finished by the second heading-die 64, slide 157, and the cam 158, and the nail is knocked out of the opened dies 62, 63 and down a shoot by an ejector 159, a rod 161, and a cam 164. The jaws of the holder 60 are controlled by cams.