Abstract: A particulate concentrate, for example pellets, is provided comprising predetermined amounts of a pigment and a blowing or foaming agent in a polymer matrix. The concentrate can be added to an extruder together with a polymer insulating material for the formation of color-coded cellular insulation on a conductor wire of a cable, for example a communication cable. The composition of the concentrate is so determined that different color-coded, cellular, insulating coatings can be produced which are dielectrically matched, as required.

Abstract: A safety lock system for vertically stacked slideably retained storage elements, such as file drawers. The system comprises one or more locking bars vertically slideably retained in alignment in a vertical support guide channel. Two or more cam elements are pivotally secured on a respective fixed pivot axis to the support guide channel adjacent an opposed end of each of the locking bars. Each of the cam elements have a cam portion retained in planar alignment with the locking bars and an activating arm portion for rotating the cam portion about the fixed pivot axis. A displaceable space is provided below each cam element portion defined between one of the locking bar opposed ends and the cam portion. An engaging member is secured to one or more of the storage elements.

Abstract: A positive feedback RC active biquadratic filter circuit comprising a passive input RC section and an active amplification output section having at least one operational amplifier. The RC section has two true resistive T-networks and a true capacitive T-network connected to receive an input signal. The RC section realizes a second order function with a low Q factor. The operational amplifier has a feedback resistive connection from an output thereof to a mid-junction point between each of three capacitances in the capacitive T-network. The capacitive T-network and one of the two resistive T-networks are connected to a positive input of the operational amplifier. The other resistive T-network is connected to a negative input of the operational amplifier.

Abstract: A pressure controlled emulsion storage receiver for use in an emulsifying system. The receiver comprises an inlet for receiving emulsion, and an outlet for delivering pressurized emulsion from the receiver. A fluid inlet is provided for feeding into the receiver pressurized fluid from a source. A level control is also provided to maintain a quantity of emulsion in the receiver between predetermined limits. The arrangement also provides for the maintenance of a predetermined fluid pressure in the receiver.

Abstract: Means adapted to receive a supply of compressed air and discharge the compressed air therefrom in a regulated manner via a selected port therein, control means within the means, for use in diverting the flow of the supply of compressed air within the means to thereby divert the air from the selected port to a further port in the means, whereby at least a partial vacuum condition is created in the selected port, allowing the ingress of air therethrough from without the means, the ingressed air mixing with the diverted air so as to be discharged through the further port.

Abstract: An improved dryer fabric, woven entirely from monofilament plastic polymeric warp and weft strands, having a lower permeability to air flow and lower modulus of elasticity than normal fabrics, wherein at least the warp strands are flattened in cross-section, with the long axis of the flattened section extending parallel to the plane of the fabric and wherein the weft strands may be shaped so as to more or less conform to the horizontally directed passages of the mesh naturally formed by the woven warp strands and may also be relatively more malleable than the warp strands so that under stress they can adapt to conform to the shape of mesh interstices thereby to restrict these and still further reduce the permeability.

Abstract: The present invention relates to packaging for various fragile articles, including a method and particularly relates to the packaging of fragile articles such as glass lighting fixture globes including ones commonly known as "Tiffany" types.

Abstract: An elongated cylindrical member, such as an axle, a bolt, stud, rivet, supporting column, etc., has means for the in situ detection and indication of cracks therein. The member is generally solid and includes, in accordance with the invention, a cavity extending inwardly from at least one end of the member and terminating in a bottom surface of the cavity. A plurality of holes extend inwardly from the bottom surface of the cavity and are disposed in circular arrangement around the bottom surface of the cavity and adjacent to the periphery of the member. A ring member is disposed in the cavity, the bottom surface of the ring member being spaced from the bottom surface of the cavity to define a chamber therebetween. An opening extends through the ring member from the top surface to the bottom surface thereof, and valve means are inserted in the opening to permit the insertion of gas under pressure into the chamber and into the holes.

Abstract: A wall lining sheet, particularly, but not exclusively, for lining the interior end walls of freight railway cars. The wall lining sheet comprises a metal sheet having a plurality of spaced-apart attachment tabs each defined by a configured slot extending through the sheet. Each of the tabs has a bendable free end portion whereby the bendable free end portion may be displaced outwardly from the plane of the sheet. The wall lining is particularly useful in relining the interior surface of corrugated end walls of freight railway cars after the end wall has been deformed and reshaped substantially to its original state.

Abstract: An anchor bracket for securing an article on a support surface. The anchor bracket comprises a clamp device for securement to the article and at least two anchor rods for anchoring in hard ground such as rock. Each of the anchor rods has a top end and a bottom end section with the bottom end section having an expanding end. A securement sleeve is provided about the bottom end section of each anchor rod and has at least an expandable section whereby the expandable section of the securement sleeve will be caused to expand by relative axial displacement with the expanding end of the anchor rod for anchoring the bottom end section in a hole of proper cross-section extending through the surface. The clamp device is attachable to the anchor rods for securement of the article on the support surface.

Abstract: A barbecue oven comprising a barbecue compartment having a door hingedly mounted in a door opening in a front wall of the compartment and spaced from a top and bottom wall thereof. A heating unit is provided in the barbecue compartment and having an elongate heat-radiating surface disposed the side walls and positioned between a top edge of the door opening and the top wall to radiate heat downwardly towards a spit turret in the compartment. The spit turret is drivingly secured in the compartment between the side walls and disposed in the path of radiation of the radiating surface. Drive means is provided to rotate the turret. A liquid collecting tray is provided in at least a portion of the bottom wall below the spit turret to collect hot liquids dripping from foodstuff supported by the spit turret.

Abstract: A separator vessel for separating and removing a substantial amount of an unwanted substance from a liquid wherein said substance has a specific gravity less than said liquid. The vessel comprises an enclosure having a bottom section and an inwardly tapering conical top section directly above the bottom section and having a top end area. Conduit means are provided in the enclosure to release the liquid in the bottom section thereof. Skimming means is secured at the top end area of the conical section for continuously discharging the unwanted substance as it rises to a predetermined level to the top end area. The unwanted substance is released through the conduit means and pumped to the storage means. Means is also provided to remove liquid from the bottom of the enclosure.

Abstract: A folded edge is formed in an elongated strip in a simple compact machine; the strip is fed through a plurality of spaced apart edge forming roller means while being maintained in vertically disposed position; in this way a simple means can be provided for supporting a coil of the strip for feeding to the roller means. In this way there can be readily and easily produced panels for buildings, for example, fascia and siding.

Abstract: An automatic visual music teaching device for displaying the structure of coded chords. The device comprises a plurality of actuable switches for selecting a desired coded chord. Signals associated with the actuated switches are temporarily stored and are indicative of the desired coded chord to be visually displayed. A further switch is activated to transfer the stored signals indicative of the desired coded chord to a decoding circuit. The decoded circuit feeds a memory system to select in a matrix the composite parts of the desired coded chord in accordance with a coded data signal sent to it by the decoder whereby the composite parts of the desired coded chord are visually indicated on a visual display element.

Abstract: The invention relates to a matrix wipe generator for television signals. With matrix switching, the television screen is divided into a plurality of blocks, and, if the screen originally contains the picture A, then picture B is switched into the blocks one at a time until all of the blocks, i.e., the whole screen, are filled with the picture B. The novel generator in accordance with the invention provides waveforms which give a Z-axis wipe effect, that is, the B picture appears to come into the screen from behind the A picture in each block.

Abstract: The invention relates to a wrist watch and thermometer arrangement. The thermometer is carried in a channel which surrounds the dial face of the watch, and the channel is formed by a platform, surrounding the dial face and disposed on one side of the thermometer, and a removable member, disposed on the other side of the thermometer. Hold down means, consisting of thin strips of a material having spring-like characteristic, extend over the thermometer from the removable means towards the platform. To remove the thermometer, it is merely necessary to lift the removable means off the platform. The removable means may be attached to the platform by a plurality of screws. The thermometer is carried in the channel by a plurality of y-shaped stands, at least the top portions of which are made of an insulating material.

Abstract: An exterior wall composition for building structures and a method of making same. The wall structure comprises a lattice framework of rigid load bearing steel studs which are secured together. The studs are provided with inner and outer attachment flanges and an inner wall membrane is secured to the inner attachment flanges to define an inner wall surface. A layer of insulating material is sprayed and adhered on an inner face of the inner wall membrane between the studs. A reinforcing material layer having interstices is secured at least to some of the outer attachment flanges of the studs. A layer of concrete material is sprayed on the insulating material and extends outwardly of the reinforcing material layer whereby the studs are embedded between an outer wall surface of the concrete material and the inner wall membrane.