Murata Kikai Kabushiki Kaisha

Tadashi Tanaka

Noboru Sekitani

Yasuhiro Inoue

Hideo Yanobu

Hirohiko Iida

Morio Sakurai

Kazuro Tokuda

A method of operating a direct weaving apparatus which may include a loop provided with picking nozzles and a weft yarn processing machine having a yarn processing unit for processing yarns, feed rollers and yarn storage drums. The start of the yarn storage drums may be controlled in connection with the start of the weft yarn processing machine. The respective operating speeds of the feed rollers of the weft yarn processing machine may be held constant and the yarn storage drums may be operated in synchronism with the corresponding feed rollers respectively at winding speeds slightly higher than the respective feed speeds of the corresponding feed rollers.

Method of operating a direct weaving apparatus

A method for detecting a harness skip in a dobby in which operations of a heald frame during one cycle of a pattern in a weaving machine are detected and stored, then subsequently detected signals on the heald frame are compared with the stored signals.

Harness skip detecting method in dobby

A positive dobby in which a pair of cam plates for moving each heald frame positively vertically are provided separately on the first cam shaft and on the second cam shaft parallel to the first cam shaft, whereby the dobby is constituted without enlarging the pitch between the cam plates corresponding to each heald frame.

Positive dobby

A method and apparatus for obtaining packages for dying by twisting and winding processed yarns by a double twister. Between a double twisting spindle and a take-up roller disposed above, there are arranged a winding angle-adjusting device, a feed roller and a traverse device, recited from the side of the spindle. The high yarn tension on the side of the double twister is reduced by using the feed roller having a special structure to obtain a soft wound package.

Growing community of inventors

Ohtsu, Japan

Tadashi Tanaka