Patent GB-190315156-A (GB)
Title: An Improved Appliance for Sewing Marks or the like on Fabrics.
Inventor: LOUD HERBERT FREDERICK WILLIAM
Filed: 1903-07-08
Granted: 1904-07-07
Abstract: 15,156. Loud, H. F. W., and Corteen, J. J. July 8. Embroidery machines; ornamental-sewing machines; feed; presser feet. - For sewing distinguishing marks, letters. numerals, or the like on fabrics, or for embroidering patterns on base fabrics, or for joining pieces of fabric ornamentally, a sewing-machine, which may be otherwise substantially of ordinary construction, is provided with means for automatically moving the work relatively to the needle, so that the stitches made by the machine form the desired pattern. In the construction shown, the work is moved by the serrated ring h, Figs. 1 and 3, on the frame or arm l mounted on the shaft k. The upper end of the shaft is connected by a ball joint 30, Figs. 1 and 6, to the lever e, while its lower end is connected by a universal coupling w to the lever m, so that the shaft is free to swing in any direction. The lever m is operated by the cam p on the extension 24 of the shuttle-driving shaft, to raise the ring h clear of the work preliminary to each feed movement.. The lever e is forked at the end 31 to engage the elbow-lever d, which is actuated by the levers i to give a right or left feed movement.to the shaft k, the backward or forward feed movement being imparted to the shaft by the lever j. The levers i,j bear against bowls 31, 32, Fig. 6, on two bars a, b, which are supported at their forward ends on levers c and at their rear ends in the cam slot 41, Figs. 6 and 7, in the adjustable disc 40. By adjusting this disc, the operative throw of the levers i, j under the action of the bars a, b, and consequently the extent of the feed movement, is regulated. The bars a, b are operated by pairs of suitably-shaped rotary or reciprocating formers or cams y, Fig. 1, against which the bowl 33, 34, Fig. 6, on the bars are pressed by the springs 37, 38, Fig. 1. In the arrangement shown, the cams are mounted in series of twenty on each of the four bars of the revolving frame x, which is rotated by the worm q on the shaft 24, the worm being shaped to give a period of rest while the needle is in the fabric, and again while the ring h is raised. One cam of each pair operates the lever i, and the other the lever j, to impart the required feed movements to the feed-ring h. The cams are carried by sleeves on the bars x, so that they can be adjusted in position to bring any required pair of cams into action, or be put entirely out of action. Each series of cams may be adapted to produce the numerals from 0 to 9, so that, with the four series, any number from 0 to 9999 may be produced. To facilitate the adjustment of the cams, an indicator 7, Fig. 8, is provided on a plate 6 carried by the frame x. The bars 8, 9, 10, 11 are connected to the sleeves of the corresponding series of cams, and are numbered, as shown, so that, when adjustment is made, the numbers of the cams in operative position are shown in the indicator. For the purpose of throwing the cams out of action at the end of each operation, the frame x is mounted in ball bearings in an auxiliary frame t pivoted at u, v, Fig. 1. A link 4 on the frame t is connected by a hinge 44 to a link 3 having an inner upwardly-turned hook and an outer downwardly-turned hook at its free end, the hinge 44 having a projection which engages in a notch in a projection 5 on the casing 27, to hold the cams in action. Before starting the machine, the frame x is rotated backwards by the hand-wheel 12, Fig. 8, until the pin 2, by engaging the inner hook on the link 3, draws the projection of the hinge 44 into its notch. When the machine is started, the frame x rotates until the pin 2 engages the outer hook of the link 3, and disengages the hinge 44 from its notch, on which the frame t drops away by gravity, to put the cams out of action. When one or more series of the cams are not required for action, auxiliary pins 1, Fig. 8, may be provided to fulfil the function of the pin 2. The numerals made by this machine are preferably each formed of twelve stitches, as shown in Fig. 10. The preaser - foot 14, Fig. 1, is in the form of a boss or plunger, which works through the ling h, and is raised by and with the needle-bar. Instead of imparting both the feed movements to the ring h, one or both may be imparted to the needle.