Патент USA US2401452код для вставки
5m 4', 1946. wémwuv V ~2,401,452 GAUZE WEAVING LOOM Filed July 16, 1945 3 Sheets-Sheet l June 4, 1946. ' ' MBANYA] 2,401,452 GAUZE WEAVING. LOOM Filed July 16, 19-45 3 Sheets-Sheet 2 MAuRUs BANYAI 115*” may: June 4, 1946. M. BANYAI 2,401,452 _ GAUZE WEAVING LOOM Filed July 16, 1943 5 Sheets-Sheet s Patented June 4, 1946 2,401,452 UNITED STATES PATENT OFFICE 2,401,452 GAUZE WEAVING LOOM Maurus Banyai, Glasgow, Scotland, assignor to M. Banyai Limited, Glasgow, Scotland, a cor poration of Great Britain Application July 16, 1943, Serial No. 494,950 In Great Britain June 5, 1942 2 Claims. (Cl. 139—55) 1 2 This invention relates to improvements in warp-shedding mechanism for looms for use in and actuated by an eccentric S4, strap 65, and rod 66, from the crankshaft 6‘! of the loom. The lever 6| is provided with warp-guiding rods 68, 69. weaving semi-gauze fabrics. Warp-shedding mechanism according to the invention includes an assembly of plate or like members arranged in closely spaced relation in On the change of shed the warp thread 5| is maintained at about the same tension, and the warp thread 5|a is brought to about midway of a row for joint angular movement about a com the height of the shed without healds being re mon axis and each formed with two apertures quired for this purpose. adapted for penetration each by a warp thread. The tensioning lever 6| answers these require For the purpose of Weaving a semi-gauze fabric 10 ments by reason that it gives slack to the warps each plate or the like is provided with one eye by the movement of the guide rod 68 and at the and with an elongated slot, and a warp is led same time by means of the rod 69 takes up the through the eye and another warp is led through slack. Fig. 2 is a section of a portion of semi-gauze the slot, so that, when the plate assembly is par tially rotated through an angle of something less 15 fabric. than one hundred and eighty degrees, the warps What is claimed is: passing through the eyes are raised and lowered 1. In a warp-shedding mechanism for a semi to form a shed for passage of a Weft-carrying gauze weaving loom including an assembly of registering plate-like members arranged in closely shuttle, and the warps passing through the slots merely slide from end to end of the slots. 20 spaced relation in a row for joint angular move Warp-shedding mechanism according to the ment about a common axis, in which each of the invention is illustrated diagrammatically in the plate-like members is formed with two apertures, accompanying drawings in which Fig. l is a part each adapted for penetration by a warp extend ing across the respective member transversely of side elevation part transverse vertical section of the axis of the members, with one of the apertures mechanism embodying the invention, Figs. la being in the form of a warp-guiding eye and the and 1b are views similar to Fig. 1 but showing the other aperture being in the form of an elongated mechanism in different positions of its operation, slot, tension means for the warps including a and Fig. 2 is a fragmentary sectional view of a semi-gauze fabric. rock-lever rockable about an axis parallel with The warps or the Weft or the warps and wefts 80 the common axis of the plate-like members, two warp-engaging guide rods mounted on said rock may consist of textile or like threads or yarns, or lever, said guide rods being spaced from each of metallic wires. other and each spaced from the pivoted axis of The construction shown in Figs. 1, 1a and 1b the rock-lever, and means for actuating said rock is adapted for weaving semi-gauze fabrics and consists of a plurality of plates Illa strung On a 35 lever in synchronism with the movement with the plate-like members, said warp-engaging guide common oscillatory shaft 49 and each provided rods being so positioned on the rock-lever, and with an eye aperture 50 penetrated by a warp the movement of the rock-lever being so synchro thread 5| and with an elongated slot 52 pene nized with the movement of the plate-like mem trated by a warp thread 51a. The eye aperture 50 is positioned outward of the slot 52 and be 40 bers that on a change of shed, one warp-engaging guide rod moves in a direction to give slack to the tween it and the adjacent edge of the plate. warp, while the other warp-engaging guide rod When the plate assembly is oscillated through moves in a direction to take up slack of the warp. an angle of the order of one hundred and forty 2. In warp-shedding mechanism for a semi ?ve degrees, say, the warps 5| are alternately raised and lowered. The raised warps form a 45 gauze weaving loom including an oscillatory shaft, an assembly of registering plate-like members ar shed 53 for passage of a thread-carrying shuttle ranged in. closely spaced relation in a row for 54. The warps 5la merely slide within the slots joint oscillatory movement with said shaft, in which each of the plate-like members is. formed 56 on a rock lever 51. A link 58 connects the 50 with two apertures, each adapted for penetration 52 of the plates. The plate assembly is oscillated by a driven rotary cam 55 engaged by a follower lever 51 with a gear segment 59 which meshes with a gear segment 60 carried by the shaft 49. 6| denotes a warp-tensioning rock lever pivoted at 62 on the gable 63 of the loom to rock about an axis parallel to the common axis of the plates 55 by a warp extending across the respective mem ber transversely of the axis of the shaft, one of the apertures being in the form of a warp-guiding eye and‘ the other aperture being in the form of an elongated slot, tension means for the warps 2,401,452 including a rock-lever rockable about an axis par alel with the axis of the shaft, two warp-engag ing guide rods mounted on said rock-lever, said guide rods being spaced from each other and each spaced from the pivot axis of the rock-lever, and means for actuating said rock-lever in synchro nism with the movement with the plate-like members, said warp-engaging guide rods being so 4 positioned on the rock-lever, and the movement of the rock-lever being so synchronized with the movement of the plate-like members that on a change of shed, one warp-engaging guide rod moves in a, direction to give slack to the warp, while the other warp-engaging guide rod moves in a direction to take up slack of thewarp. - MAURUS BANYAI.