Abstract: The present invention provides pourable curable composition which comprises the product obtained by mixing (a) a liquid epoxy resin containing a sufficient amount of a thixotropic agent to induce thixotropic properties with (b) a hardener composition which contains a tertiary amine compound in an amount sufficient to at least cause the mixture to become pourable after mixing.

Abstract: A two-component system for producing two or more different curable mixtures in which the first component A is common to each mixture and comprises:1. a liquid epoxy2. an acid anhydride hardener and3. at least one fillerand the second component B is selected from two or more different components B, each of which comprises:1. an accelerator, and optionally2. a colourant, and optionally3. a non-volatile solvent/extender for the accelerator4. a flexibiliser for the epoxy-anhydride cure5. a acid anhydride hardener.

Abstract: A process for the agglomeration of powder or dust of alumina containing material (herein referred to as "alumina powder"), wherein an aqueous slurry of the alumina powder is formed, the slurry containing a sufficient quantity of an inorganic binder comprising a polymer form of a hydroxy salt of aluminum. The slurry is subjected to a spray drying operation to form agglomerated granules of the alumina powder, and the granules then are calcined at an elevated temperature for their consolidation. The alumina containing material comprises Al.sub.2 O.sub.3.nH.sub.2 O, wherein n is in the range of from 0 to 3.

Abstract: An anchor device (10) for the edge lifting of a concrete slab (11) is disclosed. The anchor device (10) comprises an anchor element (12) with a shank (14) partially embedded in the concrete slab (11) with one end of the anchor element (12) having a lifting head (15) positioned a small distance inwardly of the edge (16) of the concrete slab (11) within a recess (17) form in the edge (16) of the slab (11). Shear reinforcement bars (18) are also partially embedded in the slab (11) and partially positioned within the recess (17). The portion of the shear reinforcement bars (18) which is positioned within the recess (17) is spaced between the head (15) and the concrete of the slab (11) in the direction of lifting.

Abstract: An excavator assembly 10 including an excavator body having a pair of tracks 12 an 13, a cab 14, an articulated boom 15 and a trenching or cutting attachment 16 mounted at the end of the boom 15. The trenching or cutting attachment comprises a blade 17 mounted to a box-like drive mounting 18 with the box-like mounting 18 having on an opposite side thereof an excavator mounting 19 element so that the attachment can be detached from the excavator. A swivel arrangement is provided for swivelling the blade 17. The excavator mounting is a standard hoe bucket fitting.

Abstract: A backing strip for a windscreen wiper blade assembly, and a clip for securing the backing strip to the assembly are disclosed. The backing strip and clip may be used in a wiper refill replacing existing windscreen wiper blades or may be provided as original equipment. The backing strip comprises rails (20) and (22) which can be engaged with claws (12) of the wiper assembly. The backing strip has two channels (34) and (36) for receiving a wiper element (40) and either rails (20) or (22) can be engaged with the claws depending on the size of the claws. The wiper element (40) is arranged in an appropriate one of the channels (34, 36) depending on which of the rails (20, 22) are engaged with the claws. The backing strip may include a third pair of rails (102) for enabling the backing strip to be used with claws of three different sizes.

Abstract: A threaded screw has a first segment adjacent the screw head (10) with nontapered sides for engaging metal automotive fastener clip nuts (30) and a second segment with tapered sides for engaging plastic bosses (24). The second segment is adjacent the first segment but distant from the screw head (10). A single set of threads (36) is used for both the metal clip nut (30) and the plastic boss (24). The threads (36) have a helical pitch angle (P) of about nine degrees and form a flank angle (.beta.) of about thirty degrees relative to a horizontal axis (20) of the screw. The screw taper matches the taper of the boss opening (22) to promote even stress distribution.

Abstract: An in situ replaceable pusher bar for a batch charger pan of a blanket batch charger for a glass melter comprising a removable pusher bar assembly and a latching mechanism for securing the pusher bar assembly to the batch charger pan. The pusher bar assembly is provided with a slide mechanism which enables the pusher bar assembly to slide through guide mechanisms secured to the underside of the batch charger pan. The guide mechanisms are in the form of pan support tubes, inside of which are disposed latch brackets attached to the ends of rods for latching the pusher bar assembly to the batch charger pan.

Abstract: Apparatus for metering fuel and air for an engine, which apparatus comprises air flow measuring means which measures at least a part of the flow of air for the engine and which generates an electrical output that is proportional to the measured air flow, control means which receives the output from the air flow measuring means and which generates electrical output signals which vary in dependence upon the received signals, and an injector which injects fuel in response to the signals from the control means. Preferably the apparatus of the invention includes fuel dissipating means, such as a heat pipe or a sonic nozzle, for finely atomizing the injected fuel.

Abstract: A fuel injection system comprising a fuel injection nozzle having a fuel injection orifice, and a vibrator for producing atomization of the fuel injected by the nozzle, the nozzle being equipped at the inlet side of the orifice with a fuel retaining valve which is arranged to normally close the orifice and thus prevent the injection of fuel by the nozzle and which is adapted to move away from the orifice when the vibrator is activated and thus allow the injection of fuel by the nozzle, the nozzle being provided with a mechanical stop device so positioned at a distance from the orifice and in the path of the valve as to limit the maximum possible travel of the valve away from the orifice to that giving a maximum predetermined amount of fuel injection by the system.

Abstract: A heat exchanger for central heating in which water to be heated passes through a circular array of parallel tubes. Hot gas passes over the outside of the tubes and heats the water up. Metal wire interlaces the tubes and helps conduction heat from the gas to the water. Preferably the arrangement of tubes and wires is metal coated to further help the heat conduction.

Abstract: A vibratory atomizer for atomizing a liquid, the horn and piezoelectric crystal being housed in a housing but separated from the housing by a rubber O-ring so that energy loss to the housing is minimized.

Abstract: A fuel injection nozzle arrangement comprising a fuel injection nozzle having a fuel injection orifice, and vibratory means such as a piezoelectric crystal for vibrating the nozzle to cause atomization of fuel ejected from the nozzle through the orifice, the nozzle having a fuel-retaining valve at the fuel inlet side of the orifice arranged to normally close the orifice and thus prevent the injection of fuel but to be opened when the vibratory means is energised to permit injection of fuel, and the nozzle having a gas-excluding valve at the fuel outlet side of the orifice arranged to normally close the orifice and thus prevent the entry of gases into the nozzle through the orifice but to open under fuel injection pressure to permit the injection of fuel.

Abstract: Making film adhesives from a thermosettable resin composition presents difficulties if the composition is not soluble in a volatile solvent, or not readily fusible without gelling prematurely, or undergoes undesirable advancement on being subjected to extrusion procedures.Such compositions in the form of solid particles can be made into film adhesives by coating a carrier with a readily-curable thermosettable resin composition, which is preferably tacky, applying the solid particles to the coating, and then curing the coating under conditions such that the particles of thermosettable resin composition remain curable.

Abstract: A vibratory fuel atomizer in which a small housing is located within the atomizer near the atomizer tip, the housing containing a ball valve for shutting off the flow of fuel and a spring for biasing the ball valve to the closed position.

Abstract: A method of measuring the distance per amount of fuel that is being consumed by an engine of a vehicle at any one instant, which method comprises measuring the fuel flow rate to the engine of the vehicle, measuring the vehicle speed, and dividing the vehicle speed by the vehicle fuel flow rate, the method being such that the fuel for the engine is injected through a fuel injection nozzle which is opened for fuel injection by providing the injection nozzle with electrical pulses during periods in which the fuel is to be fed to the engine, and the method also being such that the fuel flow rate is measured by measuring and multiplying together the time that the injection nozzle is open for fuel injection and the repetition time of the pulses.