Abstract: An automatic testing system and method for inspecting the contact characteristics of the contact pins of each of sockets of an IC tester disposed in the testing zone of an IC handler in an automatic and efficient fashion prior to testing semiconductor devices under test is provided. A test device which is identical in shape to semiconductor devices to be tested and the electric characteristics of which are known is provided and is carried on a test tray and conveyed from the loader section to the testing zone where the test device is brought into contact with a socket to measure the contact characteristics of the socket. Upon completion of the measurement, the test device is transferred from the test tray to the customer tray, and the customer tray with the test device thereon is then temporarily stored in a tray storing means in the unloader section. Thereafter, the customer tray is conveyed to the loader section where the test device is transferred from the customer tray to the test tray.

Abstract: A method for continuously tin-electroplating a metal strip, which comprises the steps of: causing a DC electric current to flow between a metal strip and an anode arranged adjacent to the metal strip while passing the metal strip at a travelling speed of at least 1 m/minute through an acidic tin-electroplating solution containing tin ions and an organic acid within a range of from 4.8 to 98 g/l as converted into sulfuric acid, to form a tin-electroplating layer on at least one surface of the metal strip; and applying an ultrasonic vibration, emitted from at least one ultrasonic vibrator and having an intensity within a range of from 0.01 to 1,000 W/100 cm.sup.2 and a frequency within a range of from 25 to 55 kHz, to the acidic tin-electroplating solution between the metal strip and the anode, thereby removing a diffusion layer of tin ions existing in the acidic tin-electroplating solution adjacent to the surface of the metal strip.

Abstract: A method for manufacturing a tin-electroplated cold-rolled steel strip, which comprises the steps of: continuously annealing a degreased cold-rolled steel strip; then, subjecting, following the continuous annealing treatment, the continuously annealed cold-rolled steel strip to a continuous tin-electroplating treatment in a tin-electroplating bath to form, on at least one surface of the cold-rolled steel strip, a tin-electroplating layer having a plating weight within a range of from 0.1 to 2.8 g/m.sup.2 per surface of the cold-rolled steel strip; and then, temper-rolling, following the continuous tin-electroplating treatment, the cold-rolled steel strip having the tin-electroplating layer on at least one surface thereof, at a reduction ratio within a range of from 1 to 5%.

Abstract: In a safety device for an IC handler in which a carrier arm and a carrier head, which carry IC elements to testing stations and carry tested IC elements from said testing stations to another position, are covered with covers for safety in such a manner that they can freely be opened and closed, a cover lock mechanism for locking the covers in their closed state and a cover unlock switch are provided. When it is detected, in the ON state of the cover unlock switch, that the IC handler is not in operation, the cover lock mechanism is unlocked by the detected output and the drive current to a motor for driving the carrier arm and the carrier head is cut off, and then it is displayed that the covers may be opened.

Abstract: In a compressed-air dryer, a base has formed therein a recess at the other end thereof. An inlet port is connected to an air compressor and communicates with the recess. An outlet port is connected to an air reservoir. Air after having passed through a desiccant container is discharged to the air reservoir through the outlet port. An oil-mist separator has one end thereof communicating with the inlet port through the recess. The other end of the oil-mist separator communicates with the desiccant container. The oil-mist separator is received within a tubular section of the base and cooperates with the tubular section to define a transport cavity therebetween. The inlet port communicates with the oil-mist separator thorugh the transport cavity and the recess.

Abstract: A compressed air pressure supply system includes an air compressor device, an air dryer device having a recoverable desiccant for removing moisture contained in the compressed air delivered from the air compressor device, an air reservoir for storing the dried compressed air from the dryer device, a regenerating valve which is mounted on the air compressor device on the side of the dryer device and opens the air compressor device to the atmosphere under the control of external commands, a governor device which causes a command to be transmitted to the regenerating valve when air pressure prevailing inside the air reservoir has attained a maximum value and which cancels this command when the air pressure in the reservoir has reached a minimum value, an oil separator mounted between the air compressor device and the dryer device for removing residue contained in the compressed air delivered from the air compressor device, a non-return valve for preventing the flow of fluid from the dryer device toward the drain

Abstract: A braking force holding device for an air brake system, maintains a braking force when a vehicle is stopped facing upwardly on a hill to facilitate the start of the vehicle on the hill. The braking force holding device includes a main body having an inlet port connected to a brake valve, an outlet port connected to a pneumatic relay valve, a control port connected to the pneumatic actuator of a clutch operating device, and a passage interconnecting the inlet port and the outlet port; a valve device capable of intercepting the flow of air from the outlet port toward the inlet port; and a control unit for controlling the valve device.

Abstract: An air dryer device for drying compressed air includes a base member, a housing mounted on the base member, and an air dryer disposed within the housing. The air dryer includes an absorbent container of a synthetic resin holding an absorbent material and disposed in spaced relation to the housing to form a space therebetween. The base member has an inlet, an outlet and a passage. The compressed air applied to the inlet flows through the passage, the container, the space to the outlet. The container has a peripheral flange at a lower end thereof. A lower end wall of the container and the flange defining a bottom of the container. A plate is embedded in the bottom of the container. Fastening elements pass through the flange and the plate into the base member to fasten the container to the base member.

Abstract: An air dryer unit includes an air storage tank including an elongated hollow body of a one-piece construction having a partition wall disposed therewithin to divide the interior of the tank body into a first chamber and a second chamber in an air-tight manner. The second chamber has an outlet connectable to a pneumatic circuit. An opening is formed through that portion of the tank body defining the first chamber. An air dryer device includes a dryer including a tubular housing containing a desiccant and extending through the opening into the first chamber, and a hollow cover member detachably coupled to the dryer housing to cover that portion of the dryer housing extending outwardly through the opening. The cover member is detachably coupled to outer surface of the tank body and has an inlet connectable to an air compressor. One end of the dryer housing disposed in the first chamber communicates with the first chamber while the other end communicates with the cover member.

Abstract: An air dryer device for drying compressed air includes a housing having an inlet port and an outlet port. An elongated desiccant container is mounted within the housing and holding a desiccant therein. One end of the desiccant container communicates with the inlet port while the other end communicates with the outlet port, so that the compressed air fed to the inlet port is passed through the desiccant container to be dried and is discharged from the outlet port. At least part of the desiccant container is transparent. An inspection window is mounted on the housing in opposed relation to the transparent part of the desiccant container so that the desiccant in the desiccant container can be viewed from outside the housing through the inspection window and the transparent part of the desiccant container.

Abstract: The present invention relates to a method and apparatus for treating waste water on ships, and more particularly to a method and apparatus for treating waste water on ships in a closed system.