Abstract: A method of coating a non-refractory and/or non-planar substrate (8) with synthetic diamond material using a microwave plasma chemical vapour deposition (CVD) synthesis technique, the method comprising: forming a composite substrate assembly (1) comprising: a support substrate (2) comprising an upper surface; one or more electrically conductive refractory guards (6) disposed over the upper surface of the support substrate and extending to a height hg above the upper surface of the support substrate; and one or more non-refractory and/or non-planar substrates disposed over the upper surface of the support substrate and extending to a height hs above the upper surface of the support substrate, wherein the height hs is less than the height hg, wherein a difference in height hg?hs lies in a range 0.

Abstract: A cutting bit assembly for a mining machine includes a holder having a first surface, a second surface, and a bore extending therebetween, and a bit having a first end and a second end. The bit further includes a tip, a shank, and a shoulder positioned between the tip and the shank. The shank is positioned in the bore of the holder and defines a shank axis. The shoulder engages the first surface of the holder. The shank includes a projection adjacent the second end. The cutting bit assembly also includes a retainer having a groove and a resilient member. The groove engages a portion of the projection. The resilient portion engages the second surface of the holder and biases the retainer along the shank axis and away from the holder.

Abstract: A cutting bit assembly for a mining machine includes a holder having a first surface, a second surface, and a bore extending therebetween, and a bit having a first end and a second end. The bit further includes a tip, a shank, and a shoulder positioned between the tip and the shank. The shank is positioned in the bore of the holder and defines a shank axis. The shoulder engages the first surface of the holder. The shank includes a projection adjacent the second end. The cutting bit assembly also includes a retainer having a groove and a resilient member. The groove engages a portion of the projection. The resilient portion engages the second surface of the holder and biases the retainer along the shank axis and away from the holder.

Abstract: The present disclosure relates to substrates for use in microwave plasma reactors. Certain substrates include a cylindrical disc of a carbide forming refractory metal having a flat growth surface on which CVD diamond is to be grown and a flat supporting surface opposed to said growth surface. The cylindrical disc may have a diameter of 80 mm or more. The growth surface may have a flatness variation no more than 100 mm The supporting surface may have a flatness variation no more than 100 mm.

Abstract: Tree anchoring apparatus has a plurality of interlocking anchor units with each anchor unit having connection means that allow the anchor unit to be secured to at least one adjacent anchor unit, an anchoring point provided for each anchor unit, and a cable or strap securable to at least one of the anchoring points. The plurality of interlocking anchor units are transportable disengaged from one another and can be interlocked with each other in situ to jointly provide a surface for supporting an overburden of soil. The cable or strap can be used to secure the interlocked anchor units to a root ball of a tree located there above.

Abstract: A method of coating a non-refractory and/or non-planar substrate (8) with synthetic diamond material using a microwave plasma chemical vapour deposition (CVD) synthesis technique, the method comprising: forming a composite substrate assembly (1) comprising: a support substrate (2) comprising an upper surface; one or more electrically conductive refractory guards (6) disposed over the upper surface of the support substrate and extending to a height hg above the upper surface of the support substrate; and one or more non-refractory and/or non-planar substrates disposed over the upper surface of the support substrate and extending to a height hs above the upper surface of the support substrate, wherein the height hs is less than the height hg, wherein a difference in height hg?hs lies in a range 0.

Abstract: The present disclosure relates to substrates for use in microwave plasma reactors. Certain substrates include a cylindrical disc of a carbide forming refractory metal having a flat growth surface on which CVD diamond is to be grown and a flat supporting surface opposed to said growth surface. The cylindrical disc may have a diameter of 80 mm or more. The growth surface may have a flatness variation no more than 100 mm The supporting surface may have a flatness variation no more than 100 mm.

Abstract: A microwave plasma reactor for manufacturing synthetic diamond material via chemical vapor deposition, the microwave plasma reactor comprising: a microwave generator configured to generate microwaves at a frequency f; a plasma chamber comprising a base, a top plate, and a side wall extending from said base to said top plate defining a resonance cavity for supporting a microwave resonance mode between the base and the top plate; a microwave coupling configuration for feeding microwaves from the microwave generator into the plasma chamber; a gas flow system for feeding process gases into the plasma chamber and removing them therefrom; a substrate holder disposed in the plasma chamber and comprising a supporting surface for supporting a substrate; and a substrate disposed on the supporting surface, the substrate having a growth surface on which the synthetic diamond material is to be deposited in use, wherein the substrate dimensions and location within the resonance cavity are selected to generate a localized a

Abstract: A microwave plasma reactor for manufacturing synthetic diamond material via chemical vapour deposition, the microwave plasma reactor comprising: a microwave generator configured to generate microwaves at a frequency f; a plasma chamber comprising a base, a top plate, and a side wall extending from said base to said top plate defining a resonance cavity for supporting a microwave resonance mode between the base and the top plate; a microwave coupling configuration for feeding microwaves from the microwave generator into the plasma chamber; a gas flow system for feeding process gases into the plasma chamber and removing them therefrom; a substrate holder disposed in the plasma chamber and comprising a supporting surface for supporting a substrate; and a substrate disposed on the supporting surface, the substrate having a growth surface on which the synthetic diamond material is to be deposited in use, wherein the substrate dimensions and location within the resonance cavity are selected to generate a localized

Abstract: A microlectrode comprising a diamond layer formed from electrically non-conducting diamond and containing one or more pins or projections of electrically conducting diamond extending at least partially through the layer of non-conducting diamond presenting areas of electrically conducting diamond.

Abstract: A rigid three-dimensional component such as a speaker dome is formed of diamond, preferably fabricated to net shape by CVD diamond synthesis, and includes a coating on one or more major surfaces thereof. The coating is designed to enhance the performance and/or to alter the appearance of the component. In particular, the coating is designed to act as a damping medium and/or provide aesthetic qualities to the component.

Abstract: There is provided an irrigation apparatus. The irrigation apparatus is used to water trees.

Abstract: A microelectrode comprising a diamond layer formed from electrically non-conducting diamond and containing one or more pins or projections of electrically conducting diamond extending at least partially through the layer of non-conducting diamond and presenting areas of electrically conducting diamond.

Abstract: There is provided a tree anchor system kit.

Abstract: A microlectrode comprising a diamond layer formed from electrically non-conducting diamond and containing one or more pins or projections of electrically conducting diamond extending at least partially through the layer of non-conducting diamond presenting areas of electrically conducting diamond.

Abstract: The ground anchors of the type which are attached to cables, rods and the like, which are driven into the ground and tilted transversely of the hole by tensioning the cable are provided. A ground anchor including a central hollow tubular body portion extending substantially along the length of the anchor and a pair of laterally projecting wings extending from opposing sides of the body portion, wherein the wings are bent at an angle to the horizontal plane, and a portion of an edge of each wing is bent at an angle to the plane of the wing.

Abstract: The ground anchors of the type which are attached to cables, rods and the like, which are driven into the ground and tilted transversely of the hole by tensioning the cable are provided. A ground anchor including a central hollow tubular body portion extending substantially along the length of the anchor and a pair of laterally projecting wings extending from opposing sides of the body portion, wherein the wings are bent at an angle to the horizontal plane, and a portion of an edge of each wing is bent at an angle to the plane of the wing.

Abstract: A rigid three-dimensional component such as a speaker dome is formed of diamond, preferably fabricated to net shape by CVD diamond synthesis, and includes a coating on one or more major surfaces thereof. The coating is designed to enhance the performance and/or to alter the appearance of the component. In particular, the coating is designed to act as a damping medium and/or provide aesthetic qualities to the component.

Abstract: Ground anchors of the type which are attached to cables and rods and driven into the ground and tilted transversely by tensioning the cable. A ground anchor comprising a body portion having a generally triangular cross-section extending substantially along its length having generally concave sides and a continuous convex lower surface from one edge of the body portion where the sides and lower surface meet to an opposite edge.