Patent GB-566382-A (GB)
Title: Apparatus for preparing yarn and thread packages for liquid treatment
IPC: D06B23/00
Filed: 1943-02-15
Abstract: 566,382. Preparing yarn or thread packages for liquid treatment. AMERICAN VISCOSE CORPORATION. Feb. 15, 1943, No. 2451. Convention date, April 4, 1942. [Classes 120 (ii) and 120 (iii)] Apparatus for preparing a yarn or thread package for liquid treatment comprises means for engaging and supporting the package, means for stripping the outer layers of yarn or thread therefrom and means for applying thereafter a protective cover to the package. The package is transported to the stripping and cover-applying devices, e.g. by a conveyer 5, Figs. 1 and 3. The engaging and supporting means A, Figs. 1 and 6, comprises a sleeve 2 having a hub 3 fixed by a plate 4 to the conveyer 5. The package supporting plate 7 is rotatably mounted on the shaft 8 and carries a facing plate 7a on which the package rests, the plate 7a having a number of gripping members 15 slidable in radial guide-ways 9 under the control of a slotted scroll plate 10 and a spring 17. The means for stripping the damaged outer layers from the package comprises a number of guide members 33 on a conveyer 34 and forms the subject-matter of Specification 566,410. In operation, tubular fabric covers, such as of the type described in U.S.A. Specification 2,230,067, are drawn over the members 15 and sleeve 2, the upper end portions of each cover being tucked into the hollow space between the members 15. Lengths of coloured yarn for identification are fed downwardly from a supply 25 through rollers 27 and a cutter 30 on to the successive covers and annular yarn packages are then placed thereon. As the conveyer moves to the right, the arm 13 engages the projection 23, Fig. 3, which rotates the shaft 8 and moves the members 15 outwardly to grip the package. The free end of the yarn on the outside of the package is passed over the leading edge of the guide 33 and in the case of the first few packages, the free ends are associated and drawn back manually over the guides 81, 82 to the wheel 37 to form a tow. Later ends are applied thereto by the device C comprising a lever 40, Fig. 9, operated by cams 49, 50 to engage the free end and raise it adjacent to the travelling tow, a lever having a surface to which liquid is applied engaging the strand and placing it in contact with the tow. The outer layers continue to be stripped until the package reaches the cutting device D, the strand being engaged in the N-notch of the cutter and severed by a reciprocating blade. A shaped member is attached to the V-jaws to prevent ballooning. The free end of the cover is then withdrawn from the space within the members 15 and is placed over the outside of the upper portion of the package. As the unit passes over the lower portion 22 of the track section, Fig. 3, the roller 12 permits the shaft 8 and plate 7 to be lowered relatively to the sleeve 2 which action applies the part of the cover on the sleeve 2 to the lower portion of the package. The arm 14 then trikes the member 24 to move the gripping members 15 inwardly to release the wrapped package. The cover-applying means of any unit may be rendered inoperative by rotating the plate 70, Fig. 6, so that the holes 73 are out of alignment with the guide members 19.