Abstract: A solenoid controlled valve of the double pilot type includes a valve main body having a valve mechanism, a pair of pilot valve units each being secured to respective sides of the valve main body and having solenoids for driving the valve mechanism of the valve main body, to first and second sets of male terminals connected to the solenoids, a wiring box being secured to a lower surface of an assembly of the valve main body and the pilot valve units, third and fourth sets of female terminals receiving the first and second sets of male terminals, respectively, a fifth set of male terminals connected to the third and fourth sets of terminals via electric wires, and a base secured to a lower surface of the wiring box at its center. The wiring box has formed therein conduits which are communicated with conduits formed in the valve main body and the base.

Abstract: An air pressure shock absorber for smoothly stopping a moving object reciprocated by a rod in an air pressure cylinder. The shock absorber absorbs and reduces the internal pressure of a chamber in the cylinder to smoothly stop the moving object by the communication of air compressed in the chamber to the atmosphere through a bypass passage formed in a cylinder wall. The air pressure is released to the atmosphere after the piston has moved through a predetermined stroke.

Abstract: An electromagnetic valve including an electromagnetic unit having a magnetic core, a coil bobbin arranged around the core, an electromagnetic coil wound around the bobbin, a stationary yoke and a first valve seat formed in a flange of the coil bobbin and a valve unit having a movable yoke, a valve stopper provided at an end of the movable yoke whose other end is rotatably coupled with the stationary yoke and a second valve seat provided in opposition to the valve stopper. When the coil is not energized, the valve stopper is resiliently urged against the second valve seat and a first fluid passage connected to the first valve seat is communicated with a valve chamber in the valve unit, but when the coil is energized, the movable yoke is attracted to the core to urge the valve stopper against the first valve seat and a second fluid passage connected to the second valve seat is communicated with the valve chamber.

Abstract: An air pressure shock absorber for smoothly stopping a moving object reciprocated by a rod in an air pressure cylinder. The shock absorber absorbs and reduces the internal pressure of a chamber in the cylinder to smoothly stop the moving object by the communication of air compressed in the chamber to the atmosphere through a bypass passage formed in a cylinder wall. The air pressure is released to the atmosphere after the piston has moved through a predetermined stroke.

Abstract: An improvement of an electromagnetic valve apparatus, in which a fluid passage is opened or closed by a movable iron core. The invention provides a hand-operated transfer device having a flat spring member with a large diameter annular element and a small diameter annular element, and an extended element which is connected with both annular elements at one portion. A hand operated member has an inner end which contacts an end of the extended element and is operable from the other end from the outside of the valve. Operation of the member results in movement of the iron core by the small diameter annular element.