Abstract: A power transmission apparatus of a working machine transmits power of an engine to a drive wheel through a drive pulley, a belt, a driven pulley, an input shaft and a clutch. The driven pulley has a movable sheave fitted to the input shaft so as to rotate and move in the axial direction, and a fixed sheave fixed to the input shaft. When the clutch disconnects the movable sheave moves away from the fixed sheave, and when the clutch connects the movable sheave moves toward the fixed sheave. The engine power can be transmitted gradually avoiding abrupt transmission when the clutch connects.

Abstract: A mobile terminal has a simple construction in a mobile communication system of a small-zone system. The mobile terminal 1 transmits base station identification information transmitted from base stations 2a through 2d and information of the intensity of electric field of received radio wave from the base station to a position managing station, while the position managing station specifies the current position of the mobile terminal, based on the above-mentioned information by means of a relational expression of the intensity of electric field and a distance between a point of transmission and reception and a database of the base station. With the simple construction of the mobile terminal 1, the current position of the mobile terminal 1 can be specified with higher accuracy.

Abstract: A still video camera provided with a mode selector to select an operation mode, a trigger generator to generate a trigger signal and a video recorder to record a visual image of the subject and to reproduce the recorded image. When the record-play mode is selected by the mode selector, the video recorder responds to the trigger signal from the trigger generator to record a frame of the visual image of the subject. The recorded frame of the visual image of the subject is then played back. This sequence can be repeated at the direction of the operator, at predetermined time intervals, or in response to a sound amplitude greater than a predetermined level. The still video camera is also capable of recording and playing back sound to accompany the still picture.

Abstract: An electronic still camera wherein exposures of different exposure times are accomplished at overlapped timings by controlling sweeping and reading operations of two fields to be exposed by the image pickup device, independently of each field so that the images thus exposed are recorded. Two images are recorded by exposing an object in conformity to one specific and another luminances if the luminance difference is large. When a plurality of images are to be continuously recorded by varying exposure conditions, signals of second and later images are recorded only at its region, in which signal levels are within a proper range, but are outside of the proper range in the preceding image.

Abstract: A silver halide type camera wherein an optical image of a subject focused on a silver halide film is received by a charge coupled device, an image information from the charge coupled device is processed by a signal processing device and displayed on a display, and a photographing condition is changed according to the image on the display immediately before taking a picture to form an optimum picture on the silver halide film.

Abstract: Electronic equipment rack having a first and a second mount to hold respectively a first and a second electronic device, characterized in that the connector of a connecting cord for the first electronic device can be detachably fitted to the second mount through a connector-holder, thereby permitting the connector of the connecting cord for any commercial electronic device to be readily fitted to the second mount; and that the second electronic device as fitted to the second mount can be moved by pushing or pulling, thereby permitting the connector of the second electronic device to be connected to or disconnected from said connector of said connecting cord for said first electronic device.