Abstract: A high-density type cultivation equipment has an improved mechanism to transfer cultivation beds from one main rail track to the adjacent main rail track, in which transfer rail tracks 1 that connect ends of main rail tracks 3 consist of two pairs of parallel feed rollers 1' that are rotated in a common direction at an identical velocity, are arranged with a track gauge related to the distance between wheels which cross said main rail tracks with an angle declined from a right angle by a feed angle .alpha. at substantially the same height with said main rail tracks. The wheels 15 of cultivation beds B have the axles 15a thereof fixed in direction to be perpendicular to the central axes of the main rails. As means to drive said cultivation beds B along the main rail tracks 3 in a cyclic path, hook means 4 that detachably engage with structural members 10 of said cultivation beds B are provided to be driven in the direction parallel to the main rail tracks 3.

Abstract: A joint-and-beam platform structure is disclosed, which is dismountably built by coupling resin-coated metal beams or members with synthetic-resin joints having hollow sleeves into which ends of the beams are inserted to form a square or rectangular framework. Each joint comprise a pair of first and second sleeves, formed to extend at predetermined angles with each other, each of a cross-section largely shaped like the alphabet "B" to fittingly but removably receive therein a tubular beam of a similarly B-shaped cross-section. The tubular beams are each provided with screw holes in the middle of their curved circumferences to receive screws through aligned screw holes formed in the associated hollow sleeves of the joint.

Abstract: A corner joint of a chassis of a cart which, positioned at each of the four corners of said chassis, connects frames on two sides that constitutes the chassis at a right angle. The corner joint comprises cylindrical parts formed with insert openings wherein the frame members are inserted for connection, a cylindrical part having a vertical through hole at the outer corner where said two cylindrical parts meet, and a caster attachment part which, provided in the plane defined and enclosed by said cylindrical parts that join each other at a right angle, connects the cylindrical parts at the mid-height thereof and which has the same configuration on the top and the bottom surfaces thereof.

Abstract: A clipboard for holding worksheets is disclosed, which is a plastic rectangular board bent into a largely inverted U-shaped cross-section having a vertical front board, an also vertical backside board that is larger in length than the front board, and a horizontal top roof member between the front and backside boards. A book of worksheets is clamped between the front and backside boards below the roof member. A hook for hanging the clipboard is centrally fixed in the roof member and having means t orient the clamped worksheets in two alternative different vertical planes perpendicular to each other. A pair of bosses centrally mounted in the backside board and each having at a front end thereof a downwardly inclined end face for engagement with a pair of apertures formed in the front board through a pair of holes in an upper margin of each worksheet clamped.

Abstract: A storage system having a plurality of gravity-feed flow-rack cells 4 classified for a group of different stock and an indicator lamp 8 at a front end of each of the cells 4; the lamps 8 light to provide guidance and indication for stock unloading to a specific group of the cells 4 for the stock shelved therein; an electronic control unit 10 is provided to enable easy selection or reselection of the cells 4 to be picked, which includes operation buttons 13 which input in a memory of the control unit 10 data to cause the indicator lamps 8 to light up; and sensors 9 are provided in each of the cells 4 to monitor access to the cells.

Abstract: A tray according to the present invention comprises a plastic body having upper and lower surfaces. A number of bottom sockets are distributively formed in the upper surface of the body so the respective bottom portions of bottles can be inserted individually in the bottom sockets. Each bottom socket has a configuration which is obtained by connecting those portions of the respective cross-sectional contours of the bottom portions of two or more different types of bottles which are situated outermost when the individual contours are superposed concentrically so that at least two diametrically facing regions of the one contour are not situated inside the other contour. Cap socket corresponding one of the bottom sockets is defined on the lower surface of the body. Each cap socket is a hole, such as a stepped hole, which has at least two hole portions with different inside diameters.

Abstract: A roll holder for holding rotatably a roll of consecutive thin-film-like products and paying out a succeeding product up to a given position as the preceding product is cut off along a break line provided between individual units of use, whose body has holding portions for holding rotatably the winding core of the roll of consecutive products to hang the same; a first feed roll to be rotated by a motor; and a detector for detecting the presence/absence of the succeeding product at a given position, whose lid has a second feed roll coming into abutment on the first feed roll when the lid is shut and locked by a lock mechanism with respect to the body, and whose control unit, after the detector detects the absence of the succeeding product, causes the motor to rotate the first feed roll to thereby pay out the succeeding product, and after the detector detects the presence of the succeeding product, causes the motor to rotate the first feed roll a certain amount of rotation to thereby pay out the succeeding prod