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2. 发明授权

US2825198A Mounting for the suction tube and the clearer in spinning machines 失效
标题翻译：安装在纺纱机中的吸管和清洁器
公开(公告)号：US2825198A
公开(公告)日：1958-03-04
申请号：US50053955
申请日：1955-04-11
申请人： THOMA COMPANY G M B H
发明人： FRIEDRICH KRAHSCHUTZ
IPC分类号： D01H5/64
CPC分类号： D01H5/645

4. 发明专利

GB850805A Suction device for textile machinery 未知
公开(公告)号：GB850805A
公开(公告)日：1960-10-05
申请号：GB2038057
申请日：1957-06-27
申请人： THOMA COMPANY G M B H
IPC分类号： D01H5/68
摘要： 850,805. Suction tubes for thread end-catchers. THOMA CO. G.m.b.H. June 27, 1957 [July 2, 1956], No. 20380/57. Class 120(2). A suction tube for devices for sucking up broken thread ends in spinning machines is constituted by a tube comprising a main duct of partly rounded cross-. section joined to a narrow apertured duct whose width at any point is not greater than its width at the junction with the main duct, and whose height is more than twice its width at the junction with the main duct, the mean width of the main duct being more than twice the mean width of the apertured duct, so that a rotary flow of air screws in the main duct whereas a stream of air flows in the apertured duct. As shown in Fig. 4, one wall of the apertured duct merges tergentially into the main duct, which is circular or oval. In a second embodiment, the main duct and apertured duct have plane side walls and are inclined to each other at an obtuse angle, the plane walls of the main duct merging into an arcuate wall. In a further embodiment the apertured duct has plane side walls which diverge slightly towards a circular cylindrical main duct.

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