Abstract: A holster for a tool such as a cordless drill which permits rapid and easy insertion of the drill and permits a variety of models to be used in the same holster comprises a tubular body portion having an open top end and open bottom end sized to receive the body portion of a tool, the tubular body portion having an elongate cutaway section extending along the length of the tubular body portion from the top edge and sized to receive the handle of the tool, and an attachment for attaching the holster to a user.

Abstract: A particle size distribution analysis sample dilution apparatus in which a sample consisting of a batch of a slurry of particles is deposited on an inclined plate of a progressive sample delivery system from which a continuous supply of water progressively washes off the sample and dilutes it. The initially diluted sample is further diluted with water continuously supplied in a funnel from which the further diluted sample passes under gravity along a conduit to a particle size distribution analyzer through which the diluted sample flows continuously. The conduit may include a mixing chamber to which water is continuously supplied to further dilute the sample prior to analysis.

Abstract: A tool which in one aspect is applicable as severing or cutting apparatus including a coupling member for engagement with an elongated extension member such as a swimming pool pole and a blade support frame mounted to the coupling member for movement relative thereto, and a cutting blade mounted at one end the frame and at its other end to the coupling member. Means are provided for adjusting the position of the frame relative to the coupling member for tensioning the cutting blade. In a further form, the coupling member is provided in an adaptor and a separate mounting part is provided for mounting of the blade and blade support frame, the adaptor and mounting part being releasably connected. When disconnected, the adaptor may engage with other forms of implement again for use with an elongated extension member.