Abstract: An alloy used for the production of a rare-earth magnet alloy, particularly the boundary-phase alloy in the two-alloy method is provided to improve the crushability.The alloy consists of (a) from 35 to 60% of Nd, Dy and/or Pr, 1% or less of B, and the balance being Fe, or (b) from 35 to 60% of Nd, Dy and/or Pr, 1% or less of B, and at least one element selected from the group consisting of 35% by weight or less of Co, 4% by weight or less of Cu, 3% by weight or less of Al and 3% by weight or less of Ga, and the balance being Fe. The total volume fraction of R.sub.2 Fe.sub.17 and R.sub.2 Fe.sub.14 B phases (Fe may be replaced with Cu, Co, Al or Ga) is 25% or more in the alloy. The average size of each of the R.sub.2 Fe.sub.17 and R.sub.2 Fe.sub.14 B phases is 20 .mu.m or less. The alloy can be produced by a centrifugal casting at an average accumulating rate of melt at 0.1 cm/second or less.

Abstract: The magnetic properties of rare earth magnet are improved by means of forming a novel structure of the cast alloy used for the production of a rare earth magnet, which contains from 27 to 34% by weight of at least one rare earth element (R) including yttrium, from 0.7 to 1.4% by weight of boron, and the balance being essentially iron and, occasionally any other transition element, and comprises an R.sub.2 T.sub.14 B phase, an R-rich phase and optionally at least one ternary phase except for the R.sub.2 T.sub.14 B phase and the R-rich phase. The novel structure is that the volume fraction (V) in percentage of said R.sub.2 T.sub.14 B phase and said at least one ternary phase is more than 138-1.6r (with the proviso that r is the content of R), the average grain size of the R.sub.2 T.sub.14 B phases is from 10 to 100 .mu.m and, further, the average spacing between the adjacent R-rich phases is from 3 to 15 .mu.m.

Abstract: An alloy used for the production of a rare-earth magnet alloy, particularly the boundary-phase alloy in the two-alloy method is provided to improve the crushability.The Alloy consists of (a) from 35 to 60% of Nd, Dy and/or Pr, and the balance being Fe, or (b) from 35 to 60% of Nd, Dy and/or Pr, and at least one element selected from the group consisting of 35% by weight or less of Co, 4% by weight or less of Cu, 3% by weight or less of Al and 3% by weight or less of Ga, and the balance being Fe. The volume fraction of R.sub.2 Fe.sub.17 phase (Fe may be replaced with Cu, Co, Al or Ga) is 25% or more in the alloy and the average size of an R.sub.2 Fe.sub.17 phase is 20 .mu.m or less. The alloy can be produced by a centrifugal casting at an average accumulating rate of melt at 0.1 cm/second or less.

Abstract: The magnetic properties of rare earth magnet are improved by means of forming a novel structure of the cast alloy used for the production of a rare earth magnet, which contains from 27 to 34% by weight of at least one rare earth element (R) including yttrium, from 07 to 1.4% by weight of boron, and the balance being essentially iron and, occasionally any other transition element, and comprises an R.sub.2 T.sub.14 B phase, an R-rich phase and optionally at least one ternary phase except for the R.sub.2 T.sub.14 B phase and the R-rich phase. The novel structure is that the volume fraction (V) in percentage of said R.sub.2 T.sub.14 B phase and said at least one ternary phase is more than 138-1.6r (with the proviso that r is the content of R), the average grain size of the R.sub.2 T.sub.14 B phases is from 10 to 100 .mu.m and, further, the average spacing between the adjacent R-rich phases is from 3 to 15 .mu.m.

Abstract: The segregation in the hydrogen-absorbing alloy is decreased by a centrifugal casting which is devised in the present invention so that: a melt fed to the bottom portion of a cylindrical rotary mold solidifies during one rotation of the mold; and, the average depositing speed of melt is from approximately 0.005 to 0.1 cm/second.

Abstract: A device for detecting and isolating a downed conductor in a three-phase four-wire multi-grounded distribution system cooperates with a power supply protective device if the device has a breaking capacity less than the maximum prospective short-circuit current of the distribution line, and the device is installed at a lateral of the distribution line. The device comprises a current detecting device, a high-pass filter, a band-pass filter, two arcing ground fault current-detecting circuits, a first overcurrent-detecting circuit that delivers an output when the output current form the current detecting device exceeds a predetermined value, a second overcurrent-detecting circuit that detects an overcurrent exceeding the breaking capacity of the device which has a breaking capacity less than the maximum prospective short-circuit current of the distribution line, a no-voltage detecting circuit for sensing that the distribution line is not electrically charged, and a trip mechanism.

Abstract: An electrical discharge machine, which performs electrical discharge machining by applying a voltage pulse across an electrode and a workpiece, includes an adaptive control unit for maintaining the machine in a predetermined machining state at the start of the electrical discharge machining operation. The adaptive control unit detects an electrical discharge machining fault during the start of the electrical discharge machining process, adaptively changes the machining conditions to avoid faults, and restores the original machining conditions thereafter.

Abstract: An adaptive control unit for an electrical discharge machine having a movable electrode for machining a workpiece, the adaptive control unit including a processing circuit for detecting several machining conditions between a time when the movable electrode begins machining the workpiece and a time when the movable electrode is moved away from the workpiece, a first memory for storing the detected machining conditions, a second memory for storing information representing several rules for defining a changing a machining state; and a determination circuit for determining a value representing a machining instability condition in accordance with the machining conditions stored in the first memory, and the rules stored in the second storage means. The rules stored in the second memory include fuzzy set representations, and the second memory further stores membership functions for the fuzzy set representations.

Abstract: A device for detecting and isolating a downed conductor in a three-phase four-wire multi-grounded distribution system. The device cooperates with a power supply protective device if the device has a breaking capacity less than the maximum prospective short-circuit current of the distribution line, and the device is installed at a tap point of the distribution line. The device comprises a current detector, a low-pass filter, a high-pass filter, an arcing ground fault current-detecting circuit, a first overcurrent-detecting circuit that delivers an output when the output current from the low-pass filter exceeds a given value, a second overcurrent-detecting circuit that detects an overcurrent exceeding the breaking capacity of a device which has a breaking capacity less than the maximum prospective short-circuit current of the distribution line, a no-voltage detecting circuit for sensing that the distribution line is not electrically charged, a main contact and a trip mechanism.

Abstract: In combination with a seat track structure including a movable track slidable on a stationary track, a handle shaft rotatably supported on the movable track, a lock plate secured to the stationary track, and a detent lever secured to the hand shaft and being loaded to engage the lock plate at a selected position, a walk-in mechanism includes a release lever rotatable on the handle shaft and being provided with an upward projection and a lateral projection, and a resilient plate having one end secured on the movable track, an intermediate portion provided with a downward projection and a flexible end portion formed with an opening to receive the upward projection of the release lever.

Abstract: A vehicle seat adjusting means for differentiating the seat height value at longitudinal points of a seat to compensate for differing passenger physiques. The apparatus comprises a handle which is manually actuated and operatively connected to an input shaft of an anti-back drive coupling and linkage means which are located at the front and rear portions of the seat. The effective length of the rear link is adapted to be longer than that of the front link in order to lift the rear portion of seat more than the front portion.

Abstract: A seatbelt system wherein the proximal ends of a lap webbing and a shoulder webbing are wound up doubly by a single take-up shaft, the forward portions of said webbings are connected to each other, and the connected portion of the webbings is inserted through an insertion opening of a tongue plate engageable with a buckle for installation of the webbings, said connected portion being provided with a pair of stoppers limiting the movement of the tongue plate and forcedly winding out the webbing wound outside of the other webbing for preventing the webbing wound outside from loosening in a retractor case.

Abstract: A seat belt retractor of the type for winding up two restraining seat belts on a single retractor shaft one over the other including a base, a retractor shaft rotatably supported by the base for winding up the two seat belts during retraction, a means for applying a retracting force to the retractor shaft and a means for applying a bending force to at least one of the two belts which is smaller in magnitude than the retracting force whereby slack is prevented from occurring in the retractor when the belts are wound out.

Abstract: A passenger restraining belt retractor for winding up two restraining belts on a single retractor shaft of retractor one over the other including a base, a retractor shaft rotatably supported by the base for winding up the two belts thereon, a bail roller pressed by a bias means against the unrolled portions of the restraining belts which are wound up on the retractor shaft.

Abstract: A tongue plate for a seat belt device in which a roller is rotatably provided in a slot in a tongue plate through which a seat belt webbing passes so that the seat belt does not press or tighten the passenger's body, when the passenger moves his body while wearing the seat belt.

Abstract: A webbing guide for use with a three-point seat belt comprising a lug member mounted to a rear side end portion of a seat so as to hold a tongue plate provided at an intermediate mounting portion of the webbing of the seat belt when the seat belt is not used and to guide one end of a lap belt portion of the seat belt when it is worn by a man sitting on the seat.

Abstract: Retractors for shoulder belts and retractors for lap belts which are transversly positioned, relative to the longitudinal axis of the vehicle. One of said retractors is housed in a side member at the bottom of the vehicle, thereby facilitating occupants getting in and out of the vehicle. At the same time, this arrangement increases the degree of freedom in the anchorage location of the retractors in the longitudinal direction of the vehicle.

Abstract: A lap belt take-up shaft for a seat belt retractor is arranged horizontally and substantially orthogonally to the traveling direction of a vehicle, whereby damage to the lap belt due to the drawing-out and rolling-in thereof is prevented and whereby a Vehicle Inertia Sensitive type emergency engagement device can be installed so as to demonstrate its function perfectly.