摘要:
A fan speed controller of an automotive vehicle air conditioning device is usually placed in an air flow duct to be effectively cooled. Thus, compact construction of the speed controller is needed to obtain a larger air flow in the air flow duct. For this purpose, various compact resistor units for the speed controller have been proposed. However, some of them are poor in durability against shocks. In view of this, a compact resistor unit for a speed controller includes a resistor block that has a flat resistor, a flat insulating plate and a flat radiation plate which are respectively positioned against one another. The compact resistor unit further includes a holder block of molded plastic on which the resistor block is mounted. The compact resistor unit also includes a plurality of metal terminals partially embedded in the holder block, where the terminals are connected to particular portions of the flat resistor. The compact resistor still further includes metal connecting lugs that are partially embedded in the holder block, and rivets for securing the resistor block to the connecting lugs.
摘要:
A magnetic tape having formed on its backcoating layer 5 a recess 10 of prescribed shape capable of yielding an optical contrast to provide optical information with which servo tracking of data tracks on the magnetic layer is effected, the recess having a depth of 0.05 to 1 .mu.m and a width of 0.25 to 30 .mu.m, and the backcoating layer 5 having an arithmetic mean roughness Ra of 4 to 20 nm.
摘要:
A magnetic recording medium comprising a substrate having an uppermost magnetic layer containing ferromagnetic metal powder and a lower magnetic layer which is adjacent to the uppermost magnetic layer, wherein the uppermost magnetic layer has an average dry thickness of 0.03 to 0.5 .mu.m, the ferromagnetic metal powder in the uppermost magnetic layer is orientated in the horizontal direction of the magnetic recording medium, the magnetic recording medium has a coercive force of 120 kA/m or higher in the horizontal direction thereof, and a ratio of a maximum magnetic susceptibility .chi..sub.max with an external magnetic field applied in the direction perpendicular to the magnetic recording medium to a magnetic susceptibility .chi..sub.8 with an external magnetic field of 8 kA/m applied in the same direction, .chi..sub.max /.chi..sub.8, is 1.3 or higher.
摘要:
A protective cover is mounted on a connector in which a plurality of terminals are received within a housing. The housing has a hood section having an opening, and electrical contact portions of the terminals are arranged in a predetermined arrangement within the hood section. The protective cover includes a cover body fitted in the opening in the hood section. The protective cover has an arrangement confirming portion for confirming whether or not the electrical contact portions are properly arranged. The arrangement confirming portion is formed so as to correspond to the arrangement of the electrical contact portions.
摘要:
To provide a multi-pole connector in which projected male connectors are protected from interference from the outside, and a smooth fitting of the connectors can be achieved. In the multi-pole connector, male connectors are mounted on one frame in such a manner that the male connectors are projected from the frame, and female connectors for the male connectors are mounted on the other frame. Connector-protecting ribs are formed at a peripheral portion of the one frame, and are projected to a height equal to or higher than a height of distal ends of the male connectors, and rib reception guides for the ribs are formed on the other frame.
摘要:
This invention relates to a hardening material for medical and dental use, in which at least either one or both of .alpha.-tricalcium phosphate and tetracalcium phosphate as an essential component and, as a hardening adjuster, the following 1 tannin, 2 tannin and collagen, 3 collagen and an organic acid, 4 tannin, collagen, and an organic acid, 5 tannin and an organic acid, or 6 at least two kinds or organic acids.
摘要:
An apparatus and method for measuring the properties of underground water are disclosed. The device comprises a measuring apparatus with a measuring sensor for measuring the properties of the underground water, a pair of expandable and contractible packers arranged above and below the measuring apparatus, a transmitting means for sending measurement signals from the measuring apparatus, and a receiving means located at the ground surface for receiving the measurement signals from the transmitting apparatus. The method of the present invention comprises the steps of placing a measurement apparatus with a measuring sensor in a bored hole at a desired depth, arranging a pair of packers so that the measuring sensor is interposed therebetween, pumping water to the ground surface from the space between the two packers, and comparing the properties of the water pumped to the surface with the properties of the water measured with the above-mentioned measuring sensor.
摘要:
The method for controlling the withdrawal of the electrode in an NC electric-discharge machine permits a linear withdrawal of the electrode to a forward position at least two blocks preceding the present forward position from the workpiece according to a withdrawal command received by the NC unit and with a high efficiency while a workpiece is being machined with electric discharges made between the electrode and the workpiece with the former being forwarded in relation to the latter according to a control information including positioning commands given to the NC unit for each block.
摘要:
A game machine with an automatic judging function according to the present invention is used to play a game in which a winner is determined according to predetermined rules of the game by moving pieces having their own characters across a game board, e.g., a checkerboard. The game machine includes classified pieces whose characters cannot be known by an opponent, a checkerboard with sensors for detecting the rank characters of the pieces disposed thereon, and a judging unit for automatically determining the winning piece on the basis of the rank characters of the pieces when they encounter on the game board. Accordingly, a game player can enjoy a game by inferring the rank characters and future moves of opponent's pieces.
摘要:
A noise-eliminating apparatus for a video tape recorder wherein the high frequency signals of the first and second channels, reproduced by a helical scan type video tape recorder, an alternately selected by the corresponding first and second switches. The selected high frequency signal is supplied to the main demodulator and auxiliary demodulator. The changeover operations of the first and second switches are carried out at a prescribed internal by the first and second control signals. An output signal from the main demodulator in shut off by a third switch during the period in which the high frequency signals of the first and second channels partly overlap each other. The shut off period is supplemented by an output demodulated signal from the auxiliary demodulator.