PURPOSE: To provide a nucleic acid preparing device which has a large throughput. CONSTITUTION: Relating to a device 10 based on centrifugation under perfect automatic computer control for preparing DNA, while connected to a personal computer, all functions and operations of the device are controlled by the computer. The device suitable for used together with trace-amount titration plates 78, 80 a...

PURPOSE:To provide a sealed lead-acid battery easy to manufacture and having a stable and constant characteristic by mixing thermal expansion micro-capsules into granular powder as an electrolyte carrier. CONSTITUTION:Thermal expansion micro-capsules are mixed into the powder having high porosity and a large specific surface area and filled between a positive electrode plate 1 and a negative elect...

PURPOSE:To provide a sealed lead-acid battery easy to manufacture and having a stable characteristic by filling thermally expanded micro-capsules in a space formed between a powder layer filled around an electrode plate group and impregnated with an electrolyte and the cover back of a battery jar. CONSTITUTION:A positive electrode plate 1, a negative electrode plate 2, and a separator 3 are stacke...

PURPOSE:To reduce the part cost and simplify manufacture by arranging acid- resistant fastening plates on the outside faces in the stacking direction of electrode plate groups, fixing synthetic resin blocks on the outsides of the fastening plates fastened with tape-like bands, and fixing the electrode plate groups to a battery jar. CONSTITUTION:Fastening plates 4 having the proper thickness are ar...

PURPOSE:To prevent impact at the time of switching from motor drive to engine drive while suppressing uncomfortable feeling. CONSTITUTION:The hybrid vehicle comprises an engine 11, an output shaft 22 for transmitting engine torque to drive wheel, a clutch C interposed between the engine 11 and the output shaft 22, and a motor 15 coupled with the output shaft 22. The hybrid vehicle further comprise...

PURPOSE:To prevent instable traveling even if switching is made between engine drive mode and motor drive mode during turning. CONSTITUTION:The hybrid vehicle comprises an engine 11, a motor 15, an engine controller 42 controlling engine torque, a motor controller 46 controlling motor torque, and a mode switching means 7. The hybrid vehicle further comprises a travel condition detecting means 3 an...

PURPOSE: To keep a stable position of an armature without using electric energy by making the actuator in such a structure that by energizing a coil, the magnetic flux density of the armature may be increased at one and decreased at the other end, and thereby the armature may be moved to another stable position and be kept at the stable position even after the coil has been de-energized. CONSTITUT...

PURPOSE:To enable photographing of a contrast image at an appropriate timing by quantitatively detecting an arriving state of a contrast medium to the location of an objective to be photographed by an ultrasonic wave. CONSTITUTION:A contrast medium injection device 20 is operated by a command signal from a system controller 16 and the predetermined quantity of a contrast medium is injected into a ...

The invention concerns a centrifuge intended for use in mainpulating liquid batches on an analytical scale. The centrifuge consists of a body (2) rotatable about its axis (1) provided with input and output conduits (8,9,11) and presenting the essential feature that therein are contained two parallel, circular arc-shaped volumes (3,4) located at different distances from the axis (1) of the body (2)...

PURPOSE:To extend the life of the titled battery by dispersedly disposing water absorbing organic macromolecules saturated with H2O in the electrolyte liquid. CONSTITUTION:A solution of sol state is prepared as an electrolyte. A water absorbing organic macromolecules saturated with H2O is also prepared. The water absorbing organic macromolecules saturated with H2O are mixed and dispersedly dispose...

PURPOSE:To suppress a vehicle from generating its unstable action being set depending upon a kind of speed change, by setting a predetermined running condition region by at least a steering angle, car speed, engine load and the kind of the speed change when the speed change of the vehicle, in the time of its turning, to the low speed shift is limited in the predetermined running condition region. ...

A variable speed transmission for transmitting power from an output shaft of an engine mounted on a vehicle to driven shafts of the vehicle, wherein a unitary housing means is provided for encasing all of the output shaft of the engine, a variable hydraulic pump for converting the engine power into hydraulic pressure, a crescent hydrualic motor for converting the hydraulic pressure into a driving ...

PURPOSE:To automize such operations as transfer and feed of paper, and a control of the paper piling position, and others by allowing a pallet to be smoothly taken in or driven out, and also allowing the paper piling position to be smoothly controlled so as to enable a paper piling table to be lifted where the pallet is fixed positively. CONSTITUTION:A paper piling pallet 11 which is placed backwa...

PURPOSE:To prevent shock vibrations in a car body caused by a sudden reduction in engine output torque from occurring, by controlling the starting timing of both lockup and fuel cut motions of an automatic transmission-cum-lockup in a proper manner. CONSTITUTION:A fuel-cut controller 3 is connected to an engine of a car mounted with an automatic transmission-cum-lockup 1. And, first operating cond...

PURPOSE:To acquire a synchronesh for converting from forward to backward running automatically, by decreasing the speed through an engine brake up to a preset value before converting an automatic transmission gear from the forward to the backward running in a switchback running. CONSTITUTION:An automatic transmission 3 connected to the engine 1 of a fork lift through a clutch 2 is shifted to the l...

PURPOSE:To enhance the freedom of control, by holding a solenoid valve in a uniform condition within a predetermined width around a pressure at which a shuttle valve is changed over. CONSTITUTION:A shuttle valve 5 takes a first position when pressure below an engine load proportioning pressure but takes a second position when pressure exceeds another engine load proportioning pressure. At the abov...

PURPOSE:To enhance the freedom of control, by controlling shift-down timing or brake while a solenoid valve is set in a predetermined condition within a predetermined width within which a shuttle valve is changed over, and by allowing brake friction elements to hold its operative condition within first and second brake ranges. CONSTITUTION:A shuttle valve 5 takes a first position when pressure bel...

PURPOSE:To delicately control the rising characteristic of a hydraulic clutch by providing an control circuit for automatically controlling a clutch pressure control valve mechanism, in a pressure oil feeding system to a transmission hydraulic clutch in the transmission case of a tractor. CONSTITUTION:An electromagnetic proportional pressure reduction valve 16 as a clutch pressure control valve me...

PURPOSE:To enable easy overhaul for repairs by supporting the shaft of a variable pulley with a through-hole part formed on a wall separating the variable pulley from a reverse and forward selector device. CONSTITUTION:A through-hole 117 is formed on a wall 111 separating variable pulleys 31 and 41 from a reverse and forward selector device 110 and the shaft of the variable pulley 31 is supported ...