Abstract: An apparatus is provided which enables the jaws of a chuck 10 to be removed from and inserted into jaw-ways 12, 13, 14 using a conventional workpiece handler, rather than a sophisticated and highly accurate dedicated jaw handling mechanism. A conventional workpiece handler cannot position a jaw to close tolerances but this problem is overcome by using a guide shoe 17 which can receive a jaw from the workpiece handler in any one of a range of positions and then accurately guide the jaw into one of the jaw-ways 12, 13, or 14.A mechanism 16 is provided for releasing the jaws from the jaw-ways, and for re-locking the jaws in position.

Abstract: The present invention relates to the manufacturing of adhesive tapes having a backing consisting of a polypropylene or other olefinic polymer or copolymer film, one side of which is coated by elastomeric or plastomeric adhesive systems (as applied from solutions, emulsions, in a molted condition, etc., according to the technologies known in the art), the other side being coated with or without corona or flame treatment, with antiadhesive systems which facilitate the unwinding operation of the tape either in the processing and in the application, but at the same time may receive printing inks of the flexo-roto-silk-screen type inks suitable for the printing of polyolefinic films. The application of antiadhesive systems which are ink compatible can be carried out either on line, namely during the tape coating process, and on tapes already coated by means of the duly modified printing machine.

Abstract: Means for preventing water hammer in a fluid-feeding system caused by a jet mixer installed in the fluid-feeding system. The jet mixer comprises a casing having an inlet and an outlet for the system fluid and a supply port for a material to be mixed into the system fluid, and a venturi-type jet tube within the casing. A group of a plurality of spring-shaped elements is padded within a chamber defined between the jet tube and the surrounding casing.

Abstract: A work holding device comprises an annular cylinder 14, an annular piston 15 movable with respect to the cylinder within the cylinder in an axial direction by application of fluid pressure, and a jaw drive device 28, 29, 30, 31 projecting from the cylinder 14 for applying radial movement to a work holding jaw 12, 13. The piston and/or the cylinder co-operates with the jaw drive device within the cylinder such that axial movement of the piston with respect to the cylinder causes radial movement of the jaw drive device. Since the translation of axial to radial movement takes place effectively within the cylinder, it is possible to reduce the axial length of the work holding device as compared to known work holding devices in which translational movement occurs outside the cylinder.

Abstract: A perspective receptacle charged with liquid and having its mouth portion sealed with an opaque seal member is rotated as-erected at a high speed. Due to this high speed rotation, the air resident in the vicinity of the mouth portion of the receptacle forms an air cavity and descends below the seal member. This descending air cavity is detected from the outside of the receptacle by means of an optical detecting member.

Abstract: A coin dispensing device having a resiliently biased ejector member opposite a coin runner. The ejector member being adapted to interact with a coin attempting to pass out of the device along the runner when that coin is not positioned to pass beneath the runner. The coin moving the ejector member against its biasing force as the coin is drawn along the runner but being influenced by the ejector member to fall off the coin runner back into a housing forming part of a coin storage bowl.

Abstract: Light projection apparatus including a laser device and a light separation device for producing red, green and blue light beam components. Ultrasonic diffraction acousto-optical devices are provided for modulating the red, green and blue light beam components respectively, and a scanning device is provided for receiving modulated light from the acousto-optical devices and projecting the light onto a viewing surface. The red, green and blue light beam components are arranged relative to their respective acousto-optical devices so that they intercept the acoustic wave corresponding to any given signal moving through the respective crystals at different times to achieve time differences in modulation of the three components for the given signal. The scanning device is arranged to scan in two dimensions to form a raster.

Abstract: A cyclone furnace for the combustion of solid fuels, comprising a generally cylindrical combustion chamber (21) is closed at one end (18, 23) and is provided with at least one inlet opening for fuel and air and has an outlet at the end opposite the closed end. The combustion chamber (21) is generally horizontal. The combustion chamber, at the bottom of the cylindrical wall (22), near the end wall (23), is provided with an opening (87) for discharging ash. An ash discharge conduit (12) is arranged intermediate said ash discharge opening and an ash bin (16) or the like. An ash discharge sluice (92) is provided in the discharge conduit, and scraping means (45, 47) are provided to scrape loose ash and slag from the surface of the end wall (23) and from the combustion chamber wall (22) next to the end wall, said scraping means being arranged to be rotated about the horizontal axis of the combustion chamber (21).

Abstract: A hydroxydiphenyl sulfone derivative represented by the formula (I) is a novel compound and a heat-sensitive recording material which comprises at least one of the derivatives as a color acceptor not only has an excellent recording sensitivity, resistances to plasticizer and diazo developer but also suits to high-speed recording, has an excellent storage stability of record images and does not decrease in whiteness of the background, ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen, halogen, lower alkyl, lower alkoxyl or hydroxyl and n is an integer of 3 or 4.

Abstract: A system of collecting data accumulated by a poker machine and relating to the operation of the poker machine, the system comprising a plurality of poker machines each of which has a control unit (1) which is adapted to collect and store data during its normal operation and to transmit this data in the form of modulated light (5) upon receipt of suitable external stimulus such as the operation of a switch (2) on the poker machine, a portable receiver adapted to receive the transmitted signal and to store this data in a memory (15). In this way data is collected from each poker machine in the particular installation all of the data being stored temporarily in the memory (15) of the portable receiver. Once data from all machines in the system has been collected or once the storage (15) in the receiver unit is full, the data is then dumped into a computer, or printed out on a printer (16), via a communications cable which can be connected to the receiver unit.

Abstract: A pivot assembly for a guide or marking tool (10) comprising a stock (12) with a reference edge (31) alignable with a desired datum (36), a blade (13) with a sighting, guiding or marking edge (16) and a semi-circular segment (18) provided with angle indicia (19). The stock (12) is pivotally connected to the blade (13) so that the angle between the reference edge (31) and the sighting edge (16) may be adjusted to a predetermined setting and the pivot axis (9) of the stock (12) relative to the blade (13) is located at the intersection between the reference edge (31) and the sighting edge (16) at all relative angular settings between the stock (12) and the blade (13). Pivoting of the stock and blade is effectuated by arcuate guide tracks on the stock (12) mating with corresponding depending flanges on the undersurface of segment (18).

Abstract: A coating on a substrate e.g., mild steel providing high corrosion resistance consists of a first coating of nickel on which is electrodeposited an alloy consisting of 51 to 75% chromium, 5 to 15% nickel and/or cobalt and balance iron.

Abstract: Carboxy-thiazolo[3,2-a]pyrimidine derivatives, and pharmaceutical compositions containing them. The compounds and compositions possess anti-allergic activity.

Abstract: Sensitivity (lack of resistance) to fungicides is a problem in commercial strains of the mushroom Agaricus bisporus. Mutant strains, produced from the known parent strains by UV irradiation followed by selection, and having a genetically stable phenotype of insensitivity (resistance) to carboxin or benodanil have now been prepared. These mutant strains give a good yield of fruit in the presence of the fungicide. They have been deposited as patent deposits under the Budapest Treaty at the Commonwealth Mycological Institute.

Abstract: A poker or slot machine in which security is provided against tampering by monitoring the status of the reels of the machine and storing the status in a non-volatile memory. In the event of a power failure, the control unit of the machine tests the status of the reels upon power up and if the position of the reels is different to that indicated by the status held in the non-volatile memory, an alarm is initiated. If the status stored in the non-volatile memory indicates that a reel was spinning when just prior to the power failure, that reel will be respun upon power up. The control unit also monitors opening of the door providing access to the reel mechanism and causes the reels to respin whenever this door is closed.

Abstract: A weather resistant, vertically foldable, insulating, multi-layered textile composite is provided having a first outer layer composed of a knitted textile fabric with tightly interlaced synthetic textile yarns, which layer has water repellency properties. A second layer next to the first layer is composed of a tightly woven textile fabric having a flexible, polymeric essentially closed cell foam coating attached thereto. A third layer next to the second layer is composed of a non-woven batt of insulating textile fibers. A fourth layer next to the third layer is composed of an impervious synthetic polymeric film. A fifth layer next to the fourth layer is composed of a non-woven batt of chemical resistant textile fibers. A sixth inside layer next to the fifth layer is composed of a knitted textile fabric having tightly interlaced synthetic textile yarns, which layer has water repellency properties.

Abstract: .gamma.-Pyrone phosphoric ester derivative represented by the general formula below is useful as an effective component of an insecticidal or miticidal composition for agricultural and horticultural uses. ##STR1## wherein R.sup.1 is hydrogen, lower alkyl group, lower alkenyl group, cycloalkyl group or phenyl group, R.sup.2 is hydrogen or lower alkyl group unsubstituted or substituted with halogen atom, A is --SR.sup.3 or --NR.sup.4 R.sup.5, B is OR.sup.6, R.sup.3 being lower alkyl group, cycloalkyl group or phenyl group, R.sup.4 being hydrogen or lower alkyl group, R.sup.5 being lower alkyl group, lower alkenyl group, cycloalkyl group, phenyl group or benzyl group, R.sup.4 and R.sup.5 may link to form piperidino or morpholino group, R.sup.6 being lower alkyl group, cycloalkyl group or phenyl group, Y is oxygen or sulfur atom.

Abstract: A fire extinguishing composition which comprises bromofluorohydrocarbon and/or bromochlorofluorohydrocarbon and a fluorine-containing high molecular compound.

Abstract: A device for fixing a mud flap has a bracket with an elongated central part, a bracket section provided at one end of the central part which can be engaged with the free edge of the fender fold, as well as a support at its other end. The device also has a pressure member, which can be pressed against the vehicle body by means of a clamping member supported on the support, in order in this way to position the bracket. A fixing member for fitting the mud flap is connected to the device.

Abstract: Attachment means are provided for attaching a mine roof support to an abutment, (e.g. a flexible conveyor) the attachment means comprising a ram arrangement in the form of at least two rams 25, 26 operable to effect relative movement between the mine roof support and the abutment. The provision of two or more rams instead of the conventional single ram means that smaller bore rams may be used, for example a 60 mm bore as opposed to 41/4 inch bore and this makes it possible to cover or encase the rams in a protective shield without reducing the vertical space available to a miner underneath the mine roof support.