Patent GB-189712975-A (GB)
Title: Improvements in Net Making Machines.
Filed: 1897-05-25
Granted: 1898-04-02
Abstract: 12,975. Lake, H. H., [Nurnberger & Co., C.]. May 25. Net-making.-In a machine for making netting with single or double knots, a cylinder C, Fig. 3, having rows of pegs C<3> to receive the knots, is employed, the diameter of the cylinder being adjustable to change the size of mesh. The cylinder is turned by pin-disc and pawl mechanism. The warp threads T are supplied from a row of spools D mounted in a stall D', and, after passing round a spindle F carried by cam-worked arms F<1>, are connected with the pegs C<3>. The weft threads T' are supplied by a row of shuttles E provided with spools E', and are also connected with pegs C<3>, The warp threads pass through a row of fingers G secured to a bar G<1> mounted in bearings in cam-worked levers G<2>. The shuttles E are mounted in a row of stalls H' provided with lips H' and fastened on a carrier H' which can slide vertically on tracks H'. The weft threads pass round a row of hooks I secured to a pivoted yoke I' oscillating in boxes depending from a sliding carrier P. Another row of hooks J is carried by a bar connected with a sliding carrier J<4>. By means of suitable cams, levers, &c. the fingers G are made at times to oscillate and to move laterally as well as vertically, the hooks I are made to move horizontally in two directions at right-angles to each other, as well as vertically, and the hooks J to move laterally and to and fro. When the parts are in the position shown in Figs. 3 and 6, the hooks J will move to the right past the shuttles E and between the bight of each weft thread ; the hooks then move laterally so that each will catch one side of a bight, and, when the hooks return, the hooks I follow, so that the threads are entered in loops on the fingers G, which are at this time over the cylinder C and meeting the hooks. The hooks continue to carry the loops farther on to the fingers, as shown in Fig. 9, a pusher L, Fig. 3, meanwhile forcing the previously-tied knots from the pegs on the lower side of the cylinder. The hooks I then pass under the fingers, and moving laterally rise again, carrying the weft loops, and then move over again to the first side so as to enter the loops a second time in the fingers, and the loops are again carried to the prongs by the hooks I and J. The hooks I then leave the loops by moving up and over the threads in the fingers, and then descend again to catch the threads, and, as the hooks carry a loop from each finger, the spindle F moves to give out warp, and the cylinder C turns so that its pegs C' enter the loops drawn by the hooks, as in Fig. 13. The hooks I then draw the warp threads in loops on to the shuttle points and down between the shuttles, and they then rise and cast off these loops and catch others from the weft threads for another row of knots, the spindle F drawing the cast-off loops. The prongs G move out of the loops which were twice wound round them, and the spindle F draws the threads against the pegs C', the arm F' actuating through yielding ratchet mechanism a reel which winds up the net. The hooks I continue to pull on the weft threads, and the hooks J yield, while the fingers G push the knots against the cylinder pegs. The fingers then move back, and the hooks I close the weft on the pegs and on the hooks J, the latter finally pulling out the knots, which are further closed and completed. In the next set of operations the side movements of the hooks and fingers will be reversed, so that the threads may lead from knot to knot in zig-zag order. The double knot formed is shown in Fig. 20. In some cases the shuttle loops are passed but once round the fingers G, a single knot being then produced.