Abstract: Two corner cubes are opposed to share one or two mirror surfaces in common thereby integrally forming two mirror groups, and driven to be reciprocatively rotated in a plane including two opposite edges thereof or a symmetry plane including an edge defined by the two common mirror surfaces, while a beam splitter is provided in front of the two corner cubes for reflecting a part of incident light and guiding the same to one of the corner cubes as well as transmitting the remaining part of the incident light and guiding the same to the other one of the corner cubes while causing interference between light components reflected from the corner cubes. According to the present invention, a moving mechanism may simply cause reciprocative rotation movement about one center of rotation, and adjustment in assembling is extremely simple and easy to allow reduction in manufacturing cost.

Abstract: A telephone cord retraction device to be positioned between a base unit and handset of a telephone, and to a telephone provided with such a device. The telephone retraction device includes a spiral spring telephone connector connecting the telephone to a retractable telephone cord of the handset.

Abstract: Phacoemulsification needles having distal ends with focusing surfaces for concentrating ultrasonic generated acoustic waves. The focusing surfaces can be beveled and/or provided with continuous curved or faceted surfaces.

Abstract: A rack supply part, an analysis unit part and a rack storage part are formed as units which are separable from each other, and a rack carrier part is integrally mounted on the analysis unit part. The respective units are provided with locating members for coupling the units in a direction for transferring a sample rack.Since the rack carrier part is integrated with the analysis unit part, relative positional relation between a position for stopping the sample rack and a position for stopping a sample dispensing pipetter provided in the analysis unit part for attraction is not displaced even if the units are separated from each other and then recombined with and mounted on each other. Thus, location is easy and no fine adjustment of positional relation is required.

Abstract: A suspension device for an automobile with stoppers that are protrudingly provided in an intermediate portion of a torsion bar, and stopper bearings provided on the inner surface of a cover mounted on the torsion bar to be in contact with the stoppers when the torsion bar is twisted by a prescribed amount, thereby changing the spring constant when the stoppers come into contact with the stopper bearings, while a portion between an engaging portion and the stoppers is rendered smaller in thickness than the remaining portion between the engaging portion and an end provided with no stoppers, thereby providing an increased spring constant. The position of engagement between the cover and the engaging portion is rendered adjustable along the torsional direction, to harmonize comfortableness and operation stability of the automobile.

Abstract: A radioactive decontamination method for decontaminating a radioactive-contaminated object by using methylene chloride in place of conventionally used hydrocarbon fluoride or perchloroethylene. The radioactive-contaminated object is impacted by methylene chloride solution. Before the impacting, a preparatory step is executed as required in which radioactive contaminant, which is usually radioactive-contaminated epoxy-resin paint layer on a part used in a nuclear facility, is impregnated with methylene chloride solution so as to swell, thus facilitating exfoliation of the contaminant from the object. The methylene chloride solution is filtered and distilled so as to be decontaminated and subjected to a repeated use for impacting the radioactive-contaminated object.

Abstract: A flat handle for hand-carrying a heavy, large book; the handle including a lower bar over which the book is draped, a spaced apart upper bar having a handhold for being held in a hand, and a pair of opposite side legs connecting between the bars; the device being molded of relatively rigid plastic.

Abstract: With respect to a gel which is mounted on a gel electrophoresis apparatus, a calibration process is provided before starting of measurement to obtain calibration data for bringing a portion of the gel irradiated with excitation light onto the optical axis of a light receiving optical system for each scanning point, to perform measurement while controlling relative positional relation between the optical path of the excitation light and the optical axis of the light receiving optical system through the calibration data. Displacement, which may be inevitably caused between the optical axis of the light receiving optical system and the position irradiated with the excitation light by errors in working, assembling and adjustment, is basically eliminated, and sensitiveness irregularity is also removed.

Abstract: A device for removing caps from bottles, jars, etc. The device includes a pair of handles with a pivot therebetween and a gripping band connected to the handles for tightly gripping the cap to be removed. The handles include gripping portions to tightly grip the cap in combination with the gripping band. The device may be provided with an adjustable length gripping band in combination with a band locking retainer to accommodate various size caps.

Abstract: A paper clip comprising a pair of plate elements having clamping edges, hingedly connected together. A cantilever spring extends from an inner surface of one plate element and engages with the inner surface of the opposite plate element. The cantilever spring can provide increasing clamping force with increasing document thickness.

Abstract: A plant support for providing support to the branches of a growing plant such as a tomato plant. The plant support comprises a plurality of vertical supports connected or welded to a top horizontal support leaving a remaining open side. The open side of the plant support can be completely or partially closed by integral interconnecting structure of the plant support or by separate structure and/or flexible cord, tape, wire, netting, etc. The construction allows for little or no tapering of the vertical supports in combination with side loading of other units for nesting purposes.

Abstract: A blade for cutting a plurality of flexible member extending from a substrate, such a grass and/or brush extending from the ground or foilage extending from a branch. The blade having a cutting edge positioned remote from a portion of a leading edge, located at an exposed side of the blade substantially facing the substrate, ground, or branch, during a path of movement of the blade during a cutting operation in one embodiment. In another embodiment, the blade is a rotary lawn and brush mower blade made of plastic.