Abstract: An apparatus for transferring vehicles onto a conveyer comprises: a front wheel supporting device (6) on an elevator (5), which is provided with a pair of front and rear wheel supporting arms (29a, 29b) that freely open and close in a horizontal direction between a closed posture supporting front wheels (Wf) at a predetermined position in terms of the convey direction and an opened posture releasing the front wheels (Wf) to the convey direction; a rear wheel supporting device (7) on the elevator (5), which is provided with a wheel supporting plate (38) that supports rear wheels (Wr) without determining the position thereof in terms of the convey direction and can switch its posture between a horizontal posture and a front-down tilted posture in terms of the convey direction; and a posture switching device (40) that changes the wheel supporting plate (38) of the rear wheel supporting device (7) to the tilted posture, at least when the elevator (5), supporting a vehicle (C) with the wheel supporting arms (29a,

Abstract: An apparatus for transferring vehicles onto a conveyer comprises: a front wheel supporting means (6) on an elevator (5), which is provided with a pair of front and rear wheel supporting arms (29a, 29b) that freely open and close in a horizontal direction between a closed posture supporting front wheels (Wf) at a predetermined position in terms of the convey direction and an opened posture releasing the front wheels (Wf) to the convey direction; a rear wheel supporting means (7) on the elevator (5), which is provided with a wheel supporting plate (38) that supports rear wheels (Wr) without determining the position thereof in terms of the convey direction and can switch its posture between a horizontal posture and a front-down tilted posture in terms of the convey direction; and a posture switching means (40) that changes the wheel supporting plate (38) of the rear wheel supporting means (7) to the tilted posture, at least when the elevator (5), supporting a vehicle (C) with the wheel supporting arms (29a, 29b)

Abstract: A friction-drive carriage type conveyor includes a carriage 1 so supported as to run in a running direction along a track, which includes a linear path and a turning path 18. The carriage 1 has a frictional surface 6a continuing linearly along its whole length. The conveyor is fitted with first friction drive rollers 15 for contact with the frictional surface 6a, which are positioned near the linear path. The conveyor is also fitted with second friction drive rollers 15A–15C for driving the carriage 1 smoothly and reliably even along the turning path 18. The second friction drive rollers 15A–15C are spaced at intervals along the turning path 18, which are shorter than the frictional surface 6a. The second friction drive rollers 15A–15C are so supported that each of them can move between an advance limit position and a retraction limit position. The advance limit position is on the locus described by the frictional surface 6a when the carriage 1 passes along the turning path 18.

Abstract: A friction-drive carriage type conveyor includes a carriage 1 so supported as to run in a running direction along a track, which includes a linear path and a turning path 18. The carriage 1 has a frictional surface 6a continuing linearly along its whole length. The conveyor is fitted with first friction drive rollers 15 for contact with the frictional surface 6a, which are positioned near the linear path. The conveyor is also fitted with second friction drive rollers 15A-15C for driving the carriage 1 smoothly and reliably even along the turning path 18. The second friction drive rollers 15A-15C are spaced at intervals along the turning path 18, which are shorter than the frictional surface 6a. The second friction drive rollers 15A-15C are so supported that each of them can move between an advance limit position and a retraction limit position. The advance limit position is on the locus described by the frictional surface 6a when the carriage 1 passes along the turning path 18.

Abstract: A gas detector for detecting the decomposed SF.sub.6 gas produced by discharge in gas-insulated equipment. The gas detector operates as a cell generating voltage in proportion to the amount of the decomposed SF.sub.6 gas wherein the voltage is generated between the detection electrode including Ag, reacting upon contact by the decomposed gas and the opposing electrode including Ag also, both electrodes sandwiching the ionic conductive solid electrolyte layer including Ag ion therebetween.

Abstract: A gas detector, which has a memory function for detected data, such as the quantity of decomposed SF.sub.6 gas, is for always watching whether electric discharging in the gas-insulated substation occurs or not, and comprises the laminated layers having a detecting electrode, a first conductive solid electrolyte, a polarization electrode, a second conductive solid electrolyte and a reference electrode.

Abstract: A circuit breaker for opening and closing contacts disposed on each phase of a multiphase electric power line has a photo-diode array and a light emitting diode array disposed on opposite sides of a driving rod of a driving mechanism, with a light passing aperture provided in the driving rod. When the aperture in the rod crosses the respective light paths between the photo-diodes and the corresponding light emitting diodes, the photo-diodes issue electric output signals corresponding to movement of the driving rod. By processing these output signals, any abnormal breaking of the breaker contacts among the phases is detected.

Abstract: An arc detector includes a luminous diode 22 for irradiating the space within a vessel 1 containing an electrical device such as a bus bar 5 and filled with insulating gas such as SF.sub.6. A shielded photo-diode 24 receives light reflected back from a fine powder 12 produced when an arc occurs, and drives an indicator 8.

Abstract: A grounded cylindrical metallic housing is hermetically closed at one end and an electric insulation hermetically extends through the other closed end of the housing to form in the housing a space filled with an electrically insulating gas. An arrester element disposed in the space has the incoming-line side connected to a terminal extended and sealed through the insulation and the ground side electrically connected to the housing. The incoming-line side of the arrester element is surrounded by both the insulation and a shield ring embedded therein.