Seikosha Co., Ltd.

Nkk Corporation

Yuichi Yamakawa

Yasuo Suzuki

Mikio Hayashi

Sunao Nakamura

Tomohiro Yoshida

Tsuneo Matsudaira

A structure of a gasified and melting furnace comprising a freeboard portion whose center axis is shifted from a center axis of a lower furnace portion by 50% or more of an inner furnace diameter, to load waste and additives and to measure a height of a deposition layer formed in the lower furnace portion, without passing through the freeboard.

Structure of gasified and melting furnace

Printing wires are able to be changed over from one to another by the movement of a printing head alone, thereby eliminating the need for a solenoid and simplifying the arrangement. The printing quality is improved by uniformly guiding the printing wires with the entire circumference of each guide hole, and further the amount of torsion of the printing wires caused by changeover of the printing wire arrangements is equalized, thereby stabilizing the printing characteristics and eliminating the difference in the printing characteristics between the parallel and staggered arrangements and also improving the durability. A first front guide is secured to a nose portion of a head frame. A front guide supporting frame, which supports a second front guide, is provided on the nose portion of the head frame so that the frame is movable in the direction of alignment of the printing wires. The printing wires are guided by the second front guide and the first front guide. The head frame is provided with a sliding member and a transmission-changeover means which causes the front guide supporting frame to be displaced in response to displacement of the sliding member. When the printing head is moved beyond the normal travel region, the sliding member abuts against a stationary member in the printer and is thereby displaced. The transmission-changeover means causes the front guide supporting frame to be displaced in response to the displacement of the sliding member, thereby moving the second front guide, and thus changing over the staggered and parallel arrangements from one to the other.

Wire-dot printer in which printing modes can be changed over from one to

Printing head of a printer for a computer

A printer head comprising a plurality of driving arms provided corresponding to a like plurality of printing elements and a like plurality of electromagnetic driving devices for driving the corresponding driving arms independently. Each of the electromagnetic driving devices includes a movable yoke fixed to a corresponding driving arm, a core piece facing the yoke and having a coil mounted around the core piece, and a magnet adjacent to the core piece. Each of the magnetic circuits includes an adjusting member for adjusting the magnetic reluctance thereof.

Printer head with adjustable magnetic reluctance

Growing community of inventors

Tokyo, Japan

Yuichi Yamakawa