The circuit generates infra-red transmission pulses in response to the input pulses. An infra-red light emitting diode is coupled, in series, with collector-emitter path of a drive transistor, connected across the battery. The drive transistor has its base coupled with the source of the input pulses. The base to pulse source connection is made through an antidroop current maintenance network. This...

Method for decaying a substrate 3 generating methane gas, for example dead animals, food debris, kitchen refuse, waste water, plant and vegetable matter and farm yard manure, in a number of containers 2-2n for the purpose of obtaining methane gas 4 from the decayed substrate in question. The pressure of the methane gas formed during the decaying process is used at least as a transporting means for...

PURPOSE:To inexpensively prepare hydrogen from water by enhancing catalytic activity without supporting a noble metal such as Pt, by using a compound represented by a specific general formula or a hydrate thereof as a photolytic catalyst of water. CONSTITUTION:A compound represented by formula I (wherein R is an element ion-exchangeable with K of a compound represented by K4Nb6O17 or a hydrate the...

PURPOSE:To prevent the discharge of waste water, by constructing a treatment apparatus wherein fermentation and drying are alternately repeated by a plurality of tanks and heat energy is alternately utilized. CONSTITUTION:Sawdust or minute wood pieces is charged in one fermentative drying tank 4 from a charging port 17 and a partition valve 14' is closed while a partition valve 14 is opened and a ...

PURPOSE:To facilitate the circulation of a liquid cooling agent by providing a small circulating pump, a precipitating cascade, and a pressure small circulating pump, a precipitating cascade, and a pressure reducing pump for adsorbing a warkpiece onto a work-table. CONSTITUTION:One end 5 of a first pipe 4 is extended under-neath a liquid level and its other end 6 is connected to the inlet 12 of an...

An installation member for service ducts includes a control disk (2) with rotating shaft (16) which is rotatably mounted in a housing (1). Screw thread-type trip cams (3) are formed in the outer side of control disk (2). Two Z-shaped clamping levers (4) are placed in a central longitudinal slot in the bottom of housing (1). The upper arms (6) of the clamping levers (4) each engage in one of the tr...

An installation member for service ducts includes a control disk (2) with rotating shaft (16) which is rotatably mounted in a housing (1). Screw thread-type trip cams (3) are formed in the outer side of control disk (2). Two Z-shaped clamping levers (4) are placed in a central longitudinal slot in the bottom of housing (1). The upper arms (6) of the clamping levers (4) each engage in one of the tr...