Abstract: An optical sensor comprises a polychromatic light source (3), a detector (4), and first and second polarizers (7) (8) disposed in the light path between the source and the detector. The polarization axis of the first polarizer (7) is substantially orthogonal to that of the second (8), and there is a modulating element (6) of birefringent material disposed therebetween. The modulating element is disposed such that a change in the parameter to be measured alters the optical path length of the polychromatic light through the modulating element, thereby changing the color of the light incident on the detector (4). The detector comprises first and second photo-responsive elements (9) (10), the responsivity with respect to wavelength of the first element (9) being different from that of the second (10).

Abstract: A security device for securing a sliding window or door in a sliding window or door and frame assembly. The security device is positioned at an upper region of the sliding window or door and frame assembly to prevent removal of the sliding window or door from the frame when such removal is attempted.A method for securing a sliding window or door and frame assembly using such security device, along with a sliding window or door and frame assembly incorporated such a security device are also described.

Abstract: Cooking apparatus comprising a stake having a first end arranged to be driven into the ground in upright manner and a support for supporting items to be cooked or heated connected to said stake in such manner that said support is arranged to be swivelled about said stake. The support may be in the form of one or more of several embodiments. In each such embodiment, the support comprises a sleeve arranged to surround the stake and is rotatable with respect thereto. Further, the embodiments may be in the form of a barbecue tray, a hollow for a wok type receptacle, a rotisserie or an elongate member having a hook.

Abstract: A puller assembly (10,42) comprising at least two angled brackets (12) each pivotally secured at a first end (14) to a base (18), each of the angled brackets (12) having a second end (16) remote from the first end (14) and disposed oppositely with respect to the base (18), a screw means (24) threadedly engaged with the second ends (16) and disposed so as to allow adjustment of the distance between the second ends (16), a drive bolt (20) threadedly engaged in the base (18) centrally of the angled brackets (12) and a leg (32) pivotally fixed to a respective one of the angled brackets (12) and disposed to attach to an object to be pulled.

Abstract: A tool cleaner for selected manual or powered use comprising a stem assembly with a brush mounted on one end of the stem assembly and a handle mounted to the other end of the stem assembly. The stem assembly includes a stem portion with a hexagonal member mounted on the stem portion. The hexagonal member is positioned between the brush and the handle. A second hexagonal member is mounted on the handle and is axially aligned with the first hexagonal member.

Abstract: Malignant, neoplastic cells are treated by inhibiting glucose transport into the cell by administering phlorizin, phloretin or its analogs while concurrently administering adjunct therapy such as heat, radiation or chemotherapy. In this manner, the cells are prevented from growing or repairing the damage caused by the adjunct therapy, which can be administered in dosages that would otherwise be non-lethal if used alone.

Abstract: An apparatus for determining displacement of an object, comprises a light source which propagates a polychromatic light signal along a path to a detector, the detector being capable of detecting the intensity of incident radiation at a plurality of different wavelengths, and a radiation modulation means mechanically coupled to said object for movement therewith, displacement of the object being arranged to cause displacement of the radiation modulating means in said path such as to vary the distributed spectral content of the light reaching the detector.In one embodiment the radiation modulation means comprises a filter which attenuates the intensity of transmitted wavelengths to different degrees and which is mechanically coupled to said object such that movement of the object displaces the filter so as to vary the extent to which the filter intercepts the radiation signal propagated by said light source.

Abstract: An agricultural harvesting apparatus (10) comprising a ground engaging housing (12), said housing (12) having an open lower end (14), a cutting and suction blade assembly (38) mounted within the housing (12) for rotation about a substantially vertical axis (20) and comprising a plurality of outwardly extending blade members (40) arranged to cause air to be pushed through the cutting and suction blade assembly upon rotation of the latter, and outlet means (57,48) in the housing (12) for removal of air sucked up by the cutting and suction blade assembly (38) and crop material cut by the cutting and suction blade assembly (38).

Abstract: A medical stent for use in an aneurysm constructed with a flexible tubular body formed from a medical thermoplastic in the form of a helix. The flexible tubular body defines a lumen and the body is adapted to assume a substantial linear configuration when mounted on a stylet with the material of the body having a recovery memory which causes it to assume a helical configuration when it is removed from the stylet. The body is provided with strands which are connected to adjacent loops of the helix and extend in the space defined by each coil of the helix to allow clot and ingrowth of tissue to seal off the dilated portion of the vessel.

Abstract: A moire fringe displacement sensor includes first and second gratings (3) (4), a polychromatic light source (1) illuminating the gratings, and a detector (8). The gratings are disposed such that a relative displacement of the first and second gratings causes a variation in the color of the light reaching the detector. The detector (8) comprises first and second photo-responsive elements (11) (12), the responsivity with respect to wavelength of the first element (11) being different from that of the second (12). Signals from the photo-responsive elements are fed to a micro-processor (15) which calculates the color of the light incident on the detector as represented by two or more parameters on the Chromaticity (CIE) Diagram, and interprets the color in terms of the displacement of the first and second gratings.

Abstract: A metallizing paste capable of being used for screen printing applications which comprises tungsten powder and an organic vehicle system. The organic vehicle system can comprise a polymeric material, such as ethyl cellulose, and a solvent, such as terpineol. The paste preferably includes frit material, such as one or more of alumina, cerium fluoride, bismuth oxide and silica. The paste may also include manganese and/or nickel.There is also disclosed a semi-conductor package made using the metallization paste. The package includes a conductive attachment area, conductive feed-through paths, conductive vias and a conductive external underside, all of which are formed using the metallization paste in various formulations.

Abstract: The present invention relates to an appartus for playing indoor baseball, indoor softball or indoor tee-ball which comprises an arena having a playing area provided, with a circuit defined by a plurality of bases including a home base. The area further having first and second zones wherein the second zone contains at least one base other than the home base, there being a position on a boundary of the first zone defining the points of closest approach of a fielder of the at least one base to the at least one base until such time as the ball is caused to move such that play is commenced in respect of a batter's individual facing of a respective delivery of the ball.

Abstract: A fluid flow sensing device comprises first and second p-n junctions, one of which is arranged to be disposed in the fluid flow to be measured and the other of which is arranged to be disposed at a position such that its temperature depends only on that of the fluid. An amplifier monitors the voltage drop across the first p-n junction. A comparator compares the measured voltage drop across the first p-n junction with a reference level to provide a feedback voltage which is used to control the heating of the first p-n junction such as to maintain the temperature of that junction constant irrespective of variations in the fluid flow or the fluid temperature. A current is passed through the second p-n junction and the voltage drop across it is monitored and compared with the feedback voltage to provide a signal which is a function of fluid flow alone.

Abstract: A drill jig for making a channel in a timber for containing flowable preservative comprises a body (10) having a first or perpendicular guide bore (20), a second or oblique guide bore (22) and a third or vertical guide bore (24). The guide bores (22) and (24) intersect in a cylindrical locating spigot (18) and the axes of the guide bores (20) and (22) intersect in the timber to be drilled. A collet (26) on the shank of the drill bit (28) limits the depth of penetration by the lower face (32) of the collet abutting an abutment face (34) on the body (10). The depth of pentration when using the guide bore (20) or (24) is limited by the collet (26) coming into abutment with an adjustable stop (38) on the body (10). No adjustments are necessary as between drilling perpendicular or oblique bores and it is ensured that the bores formed in the timber intersect to form a continuous channel for receiving flowable preservative.

Abstract: An apparatus and method of use thereof which quantifies the processes of hemostasis occuring in human blood. The apparatus utilizes an oscillator transducer which is sensitive to changes of viscosity and tensile strength of surrounding blood as coagulation occurs in the latter. An oscillator, which may be excited to oscillate at a natural resonant frequency, is housed within an enclosure designed to accommodate a finite quantity of blood in contact with the oscillator. As hemostasis occurs, the frequency at which the oscillator resonates is impaired. A control and computation system for measurement of the change of frequency is coupled to the oscillator, which counts the number of oscillations of the oscillator transducer during a predetermined time period, and computes the frequency as a function of the known time period and the counted oscillations.

Abstract: A master pattern assembly for providing eyeglass lens circumference shape guidance in an edge grinding machine, suitable for creation of a replacement lens for eyeglasses where one lens is broken and one remains intact. The intact lens is removed from the frame, its optical center is located, and the lens is adhered to a dual-adhesive pad which is also adhered on a side opposite the lens to a body block. The block and pad define coaxial throughgoing bores centered on the optical center of the lens. The bore of the block is then received on a rotatable axis of a conventional edge grinding machine, where the assembly is rotated and the circumference of the intact lens acts as a cam in contact with a pattern follower, controlling circumference formation of a new lens.

Abstract: A pressure relief valve adapted in use to relieve excess pressure within a vessel. The valve comprises a valve seat (20) and a moveable valve member (28) which is resiliently biased towards the valve seat (20) by coil springs (30) to maintain the valve in a normally closed position. A valve seal (52) is carried by the moveable valve member (28), between the moveable valve member (28) and the valve seat (20), to seal the gap therebetween when the valve is closed. The valve seal (52) has an annular pressure sealing face (54) which in the valves normally closed position sealingly co-operates with the valve seat (20).

Abstract: Phlorizin, its gluconuride and 4-deoxyphloretin-2-D-glucoside are used in treatment of cancer, particularly in combination with radio frequency thermotherapy and other modalities to accentuate the effect of such thermotherapy or other modality.