594,290. Knitting-machines. TEXTILE MACHINE WORKS. July 3, 1944, No. 12649. Convention date, Sept. I, 1943. [Class 74 (ii)] In forming a welt upon a straight-bar machine, welt hooks 102 are advanced between the needles 57 to receive the alternate loops of the first course thereon, the hooks 102 are withdrawn while the needles knit subsequent courses, and the hooks are again advanced between the needles with the cast-off loops of the first course stretched each upon two hooks, and means are provided upon the welt hooks for positioning the loops thereon and for pushing the needles which knitted at the first course out of position so that the remaining needles can more readily take the loops returned to them. A welt hook 102 is provided between each pair of needles and points 89, one to each two needles and fixed to a lace or picot bar are provided for removing the loops from the alternate needles so that they can be taken by the welt hooks. The welt hooks are mounted upon a bar and in one form, Fig. 35, each hook has mounted thereon a sheet metal sheath member 179 having a forwardly projecting portion 184 arranged to position the loop lengthways of the hook and to press against the adjacent needle which knitted at the first course. In each pair of adjacent welt hooks, the parts 184 of the sheath member are disposed at opposite sides of the stem 181 of the welt hook. In addition to positioning the loops and pressing the adjacent needles out of position, the sheath members 179 serve to support the welt hooks against lateral displacement. In another form, Fig. 44, each welt hook has a lateral projection 194a for positioning the fabric loop and engaging the adjacent needle and has a projection 195a registering with a similar projection on the adjacent welt hook to prevent lateral displacement. In yet another form, a pair of hook members are mounted upon a centrally arranged stem member which serves to position the fabric loop and press a needle out of position. Specification 598,468 is referred to.
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