Abstract: The invention relates to a shopping cart (1) with a chassis (2), a device (4) to push it, and a basket-like container (5) to accommodate goods carried by the chassis (2), the chassis (2) and the basket-like container (5) being designed in such a way that shopping carts (1) of the same kind can be pushed into one another in order to save space and the container (5) being composed of a carrying section (7) which is attached to the chassis (2) and which has a bottom (9), two side walls (8), and a back wall (21) and of an end piece (23) which is connected to and carried by the carrying section (7) and which is located facing the back wall (21). The essence of the invention consists of the end piece (23) being designed as a structural element made of plastic composed of one or more pieces and rigidly connected to the carrying section (7).

Abstract: A mooring system comprises a sheave (12) adapted to be mounted to a base (11) which is located on the sea bed. In one embodiment, a cable (13) received in the sheave (12) is connected at one end to a first buoyant member (15) and is connected at its other end to a second buoyant member (23). The buoyancy of the second buoyant member (23) is less than that of the first buoyant member (15). Mooring energy caused by movement of a vessel moored to the second buoyant member is absorbed by the combination of a resistance to movement of the second buoyant member (23) as it is pulled away from a vertical position adjacent the cable (13) and the buoyancy of the first buoyant member (15) as it is pulled downwards by the cable (13) towards the sheave (12).

Abstract: Modular furniture is disclosed wherein a system of tubes, preferably made from laminated paper or paperboard, build a system of rectangular frame-like subassemblies. The fill-in panels used in the subassemblies are of the type of hollow prisms, usually rectangular prisms, open at both ends and provided at the open ends with inwardly rounded side edges compatible in size with the surface of the structural tubes. Several embodiments of the fill-in panels are disclosed inclusive of cardboard blanks from which they may be produced. The invention further advances the art of inexpensive modular furniture and its manufacture.

Abstract: A drive system for a brushless DC motor uses pulse width modulation, and phase timing advancement to maintain a constant power output during high speed use. The arrangement is well suited for driving a brushless motor in an electric vehicle and the like.

Abstract: An electromechanical transducer, such as a motor (1), comprising a rotor member (4), a stator member (3) having an electrical winding (8), and isolating means (11, 9, 16, 12) isolating at least a part (18) of one of the members (3) from the other member (4), and cooling fluid in direct contact with said part (18) and isolated from the other member (4). The stator member (3) is preferably cooled by pumping liquid past it, whilst the rotor member (4) is isolated from the liquid. The rotor member (4) preferably operates in an evacuated chamber (48). A pump (5) is preferably provided to pump the cooling liquid around a cooling circuit (47, 6, 5, 47, 42).

Abstract: A molded article is formed by an injection molding method of embedding a workpiece within a resin by the use of a mold. The mold has a mold cavity, at least one supporting pin removably projecting into the mold cavity to support the workpiece in the mold cavity, and at least one gate for injecting the resin into the mold cavity. The supporting pin is forced against the workpiece to support the workpiece within the molded cavity. The resin is injected into the molded cavity through the gate. In the present method, the supporting pin is removed from the mold cavity after the workpiece is supported by pressure of the resin injected in the mold cavity. The injection of the resin is continued to fill a hole left in the mold cavity by removal of the supporting pin. After the injection is finished, the injected resin is hardened to obtain the molded article.

Abstract: A reciprocatory dry shaver comprises a stationary cutter, a movable cutter, and a permanent-magnet linear motor having a stator and a reciprocator which is driven by an electric current to reciprocate relative to the stator. The reciprocator carries the movable cutter to reciprocate it in shearing engagement with the stationary cutter. A power circuit is included to provided an electric power to the motor. The shaver includes a detector which detects a displacement of the movable cutter and give an output indicative of the detected displacement of the movable cutter. Also included in the shaver is a controller which varies the electric power being fed to the motor in a feedback manner based upon the output from the speed detector in order to keep an oscillation amplitude of the movable cutter at constant.

Abstract: The transparent plastic sheet is provided with the linearly extending convex lenses formed repeatedly, continuously and integrally therewith, on the surface side thereof, and the transparent printed layer formed on the back side thereof, to give the brightness with variously changing the sheet in color in dependence upon the angles of one's eyes relative to the plastic sheet, whereby improving the designing external appearance.

Abstract: A dental matrix of the type of a flexible strip, preferably made from a thin, strong, flexible material such as Mylar.TM.. Instead of the usual rectangular band, the strip tapers toward one end to provide a variety of sections having different width so that the overlap of a cavity, usually in the interproximal surface of a tooth, can be accurately made by simply sliding the strip to a desired position. As a result, there is an improved strength with which the strip envelopes the immediate vicinity of the filled cavity thus preventing undesired escape of the filling material towards the gum or towards the incisive part of the tooth. Two embodiments are disclosed.

Abstract: In a scanning spectrophotometer, in which a narrow wavelength band of radiation can be selected from a range of wavelengths for transmission alternately through a sample cell and a reference cell, continuous automatic baseline correction is provided. A pulse train signal is generated, wherein the number of pulses represents the ratio of a parameter (e.g., intensity) of the radiation transmitted, respectively, through the sample and reference cells. A ratio of unity represents the baseline, and deviations from the baseline are indicated by changes in the number of pulses in the pulse train. Digital information indicative of baseline deviations is stored in a memory device when the spectrophotometer is being calibrated, and is retrieved from the memory device during operation of the instrument for sample analysis. The retrieved information generates a correction signal, which provides a continuous baseline correction.