GB191030119A - Improvements in or relating to Multiple Embroidery Machines. - Google Patents

Abstract

30,119. Farmer, C. Dec. 28 Embroidery machines.-The needle-threads of an embroidery machine are separately controlled, each being provided with a series of pins or the like, around which the thread passes, the pins being mounted on a jointed frame which is moved to effect the control. The threads A pass from the spools to ordinary tensions B and then around pins C<1> ... C<7> arranged in two rows on a series of bars G<1> ... G<7> which are movable towards or away from one another on the lazy-tongs principle. The bars are actuated by frames consisting of links H<1>, H<2>, H<3>, H<4> with cross-links H<5>, H<6>, connected at the joints J, J<1> to bell-crank levers K, M, the arms K<1>, M<1> of which are connected to cam or otherwise suitably actuated bars N, N<1>. The bars G<1> .... G<7> are connected to the frames at points J, J<2>, J<6>, J<7>, J<8>, J<9> and J<1> respectively. When the work is fed forward to make a stitch, the bars N<1> are actuated to move pins C<2> ... C<@> away from the needles D. As the distance between the pins is constant, slack loops are produced between the pins C<7> and the tensions B, thus allowing sufficient thread to be drawn over the pins without drawing from the tensions. The pins are then returned to normal position, when they draw the same lengths from the tensions. In making the stitch, the bar N is actuated, the pins C<7> remaining stationary and the others first moving towards the needles to form loops for the shuttles to pass through, and then returning to draw up and tighten the stitches. A device comprising, for example, oscillating bars may be provided between the tension and the pins for feeding thread from the former to the latter; the frames may be arranged vertically, and the pins or the like horizontally.