Abstract: Toy building pieces are disclosed which may be advantageously used in conjunction with POPSICLE sticks, their generic equivalents, or other framing pieces or connectors. One or more faces of many of the building pieces have apertures defined in the surface thereof to receive a framing piece such as a POPSICLE stick or connectors which are I-shaped in cross-section. Other faces of the piece may incorporate piece interconnection means, which may include for example: a pin on one part adapted to engage a sleeve on another part, for hinged connection; a dovetail tongue on one part adapted to engage a dovetail groove on another part; or a tongue projecting from a face to engage one of the apertures. Other interconnection means are also contemplated. Adapter pieces are provided to change the connection means of a piece, in effect. In a kit or collection of such building pieces, a combination of various configurations of such pieces is provided.

Abstract: A fluorescent tube carrier for transporting and/or assisting in the disposal of flourescent tubes has four capsules, one for each tube. The capsules are held in a generally square cross-sectional configuration by spacers and have removable covers at either end. The covers have an interior surface that is cushioned to protect new flourescent tubes located within the capsules from shock. There are a series of tiny openings along the side of each capsule, the openings being large enough to receive a pin. When spent tubes are contained within the capsules, a pin can be inserted into the tiny openings to break the tubes. In a second disposal step, there is a rod, which is stored on the carrier, that can be inserted into each capsule to force the broken glass towards an area of the carrier where it can be disposed of. Spent fluorescent tubes have a potential of exploding at any time and therefore pose a danger during disposal. The carrier eliminates this danger during the first stage of disposal.

Abstract: A machine for building a dome or sphere has an extruder that extrudes part of a wall of a dome or sphere from fluid material which hardens on extrusion as the extruder travels around a center axis. A ramp allows the extruder to gradually ride up onto the initial wall so that another partial wall of the sphere can be formed. The extruder continuously moves along its own produced track in a spiral path to ultimately form a dome or sphere, as desired.

Abstract: Apparatus for supplying fluid for use at the internal surface of a tubular workpiece is provided with a housing mounted in a frame which is movable along the inside of the workpiece. A plurality of rigidly connected, coaxially arranged fluid supply pipes are rotatably mounted in the housing and project from one end of the housing. Fluids are supplied to the housing through a plurality of non-rotatable supply pipes, pass through conduits provided by the interior of the inner rotatable supply pipe and by the annular section clearances between radially adjacent rotatable supply pipes, and are discharged through outlet conduits which are connected respectively to the projecting ends of the individual rotatable fluid supply pipes and which are supported at their ends at the outer end of a radial arm carried by the projecting ends of the rotatable fluid supply pipes.