Abstract: A punch press for machining a plate-shaped workpiece by cooperation of an upper metal mold mounted on an upper turret and a lower metal mold mounted on a lower turret. The upper turret and the lower turret are rotationally driven. A plurality of lower metal molds are provided corresponding to a selected one of the upper metal molds, and the workpiece is machined after selection of one lower metal mold from among the plurality of lower metal molds.

Abstract: A punch press includes an upper metal mold mounting board 2 mounting the upper metal molds 16 and a lower metal mold mounting board 3 mounting the lower metal molds 17. A notch portion 20 or bore for exchange of a lower metal mold is provided in the upper metal mold mounting board 2. When the lower metal mold 17 is mounted or dismounted, the notch portion 20 or bore provided in the upper metal mold mounting board 2 is positioned above the lower metal mold 17 to be exchanged or its mounting hole, thereby mounting or dismounting the lower metal mold 17 through the notch portion 20 or bore.

Abstract: This invention provides a selective cellular fibronectin (cFN) adsorbent utilizing a nonwoven cellulose sulfate fabric and a method for fractional purification of FN which comprises contacting an FN matter containing both plasma fibronectin (pFN) and cellular fibronectin (cFN) with the nonwoven cellulose sulfate fabric to separate pFN and cFN from each other. By the fractional purification method of the invention, cFN and pFN can be fractionated in an expedient manner and with high efficiency and both pFN and cFN can be recovered in high purity and good yield.

Abstract: An antiskid control device is disclosed. This device is capable of controlling the braking of a vehicle such as an automobile so as to obtain a reduced stopping distance while simultaneously making it possible to maintain the stability and steerability of the vehicle. The device is comprised of two pressure-mediating circuits provided in two lines leading from a master cylinder. Each circuit is connected first to a front brake, then to the diagonal rear brake and then returns to the reservoir. An inlet valve is interposed in each pressure-mediating circuit between the master cylinder and the front brake. An outlet valve is interposed in the return of each pressure-mediating circuit after the rear brake. The inlet and outlet valves are controlled based on a computation analysis of wheel speed.

Abstract: The present invention is directed to a pressure control unit for a brake system that includes a master cylinder connected to brake circuits for a plurality of drive and follower wheels, each brake circuit being connected to a wheel cylinder through a main brake line.

Abstract: The object is to provide a yarn for use in setup, which allows knitted goods to be manufactured by weft knitting machines in such a manner that the yarn does not break or slip out of the knitting needles but forms regular stitches. The yarn for use in setup comprises an elastic yarn and fiber bundles with which the elastic yarn is covered or an elastic yarn and fiber bundles, which are twisted, each of the fiber bundles consisting of highly abrasion-resistant fibers having tensile strength.

Abstract: An improved failure detection circuit for anti-skid braking systems is disclosed. The failure detection circuit sends electrical test pulses to the individual valves which control the flow of pressurized brake fluid to the individual brakes and uses a feedback signal from these valves to determine a failure in any of these circuits. The failure detection circuit also includes a voltage monitoring circuit which monitors the voltage which is supplied to the anti-skid braking controller while applying an electrical load to the main power circuit for the controller such as by testing a plurality of valves at once. If the voltage drops below a minimum acceptable level, it indicates an actual or incipient failure of the main power supply circuit. This indication can be used to trigger a warning or to shut down the anti-skid braking system as can a detection of a failure in an individual circuit.