Abstract: A magnetic screw device comprising an internal (male) magnetic screw having the even number of magnetized bands spirally magnetized on an outer surface with contiguous magnetized bands having opposite polarities and an external (female) magnetic screw having the even number of magnetized bands spirally magnetized on the same outer surface with contiguous magnetized bands having opposite polarities. The internal and external magnetic screws are composed of a plurality of spiral cylindrical magnets disposed in its axis direction, the spiral cylindrical magnet being formed of short cylindrical permanent magnet materials on each outer or inner surface which is spirally magnetized. The internal magnetic screw includes a rod member to support the inner spiral cylindrical magnets.

Abstract: A magnetic screw conveying apparatus comprises a rotary shaft 11 rotatably supported, a stepmother 19 for driving the rotary shaft 11 to rotate, a male magnetic screw 15 having magnetized bands with a south pole S and a north pole N alternately magnetized and in parallel to each other on the outer periphery of the rotary shaft, a first slide table 21 slidably mounted on the rotary shaft 11, a first female magnetic screw 27 having magnetized bands with a south pole S and a north pole N alternately magnetized in a spiral form at a first inclination angle .theta.1 on an inner periphery surface of the first slide table, opposite to the male magnetic screw, a second slide table 22 slidably mounted on the rotary shaft 11, and a second female magnetic screw 28 having magnetized bands with a south pole S and a north pole N alternately magnetized in a spiral form at a second inclination angle .theta.

Abstract: An air pressure regulator and an adjusting mechanism for a regulating device such as an air pressure regulator having a value body having a valve element and a diaphragm therein and a spring bonnet. The spring bonnet has a peripheral recess or circumferential groove and a external male thread. The adjusting mechanism has an outer sleeve knob removably mounted on the spring bonnet for rotating a threaded pressure-adjusting spindle or adjustment screw internally of the spring bonnet. The knob has axial internal elastic claws. Each claw has a projection elastically received in the groove of the spring bonnet when mounted in assembly therewith. The claws elastically bias the corresponding projections into the groove and hold the tubular know in axial assembly with the regulator. Rotation of the knob rotates the adjustment screw for adjusting spring pressure of a spring acting on the diaphragm for regulating air pressure to maintain it constant.

Abstract: A detably attaching mechanism for a cup of a lubricator or a filter used with an air-actuated device comprising such cup containing therein a quantity of lubrication oil or filter elements, means to supply a quantity of lubrication oil from the cup into an air stream flowing from an inlet to an outlet or to introduce the air stream through the filter elements contained within the cup, a cover mounted on the cup and a protective cylinder mounted around the cup, characterized by that the protective cylinder is provided on its outer periphery with a locking piece adapted to have its front or top end being outwardly tilted away from the outer periphery of the protective cylinder by depressing its rear or lower end and this locking piece is mounted with interposition of an elastically flexible leg on the outer periphery of the protective cylinder and that the cover is provided in its outer periphery with receiving means adapted to receive the front or top end of the locking piece upon completion of attachment of t