Abstract: A real-time, interactive incident reporting and alert system and method is provided. The system includes at least one server configured to: receive, from a user device, an incident report, the incident report including an identifier of a user associated with the user device, a location associated with an incident, and information relating to the incident; identify a plurality of users in proximity to the location; and transmit an alert to a plurality of user devices associated with the plurality of users to inform the plurality of users of the incident.

Abstract: A real-time, interactive incident reporting and alert system and method is provided. The system includes at least one server configured to: receive, from a user device, an incident report, the incident report including an identifier of a user associated with the user device, a location associated with an incident, and information relating to the incident; identify a plurality of users in proximity to the location; and transmit an alert to a plurality of user devices associated with the plurality of users to inform the plurality of users of the incident.

Abstract: A seal assembly (1) described comprises an elastomeric component (10) having a sealing surface (25) for providing a sealing function, and an energizing band (30), the elastomeric component (10) including an aperture for the energizing band, wherein the energizing band is adapted to fit in the aperture of the elastomeric component (10). In use, an outer surface of the energizing band applies a force to the elastomeric component (10), to deform the (10) elastomeric component to form a seal at the sealing surface. The energizing band (30) component includes non-metallic material.

Abstract: A diaphragm (20) for a diaphragm valve is described. The diaphragm (20) has a body (22) comprising a first elastomer and a resistant layer (24) comprising a second elastomer having a different composition or formulation. Diaphragms described in examples have good flexibility with a high level of chemical resistance and low surface adhesion. A fixing attachment for fixing the diaphragm in the valve is also described.

Abstract: A sealing element of a hydrodynamic seal for relatively rotating elements, having a sealing surface (26) and consisting of or comprising at least one stabilising ply (58) of fabric impregnated with or disposed n a binder material which prevents relative movement of fibres of the fabric during use of the seal.

Abstract: An apparatus for tightening a threaded fastener of the kind having: a shank with an axial bore; a gauge pin positioned in the bore and connected to the shank, a part of the gauge pin either protruding from, flush with, or recessed from an end face of the fastener; and an indicating member rotatably supported on the either protruding from, flush with, or recessed from part of the gauge pin, the indicating member being arranged such that it is free to rotate when the fastener is unstressed but when the fastener is subjected to a predetermined tensile load the indicating member is held against rotation, wherein the fastener has either a head connected to an end of the shank adjacent the indicating member or, alternatively, has a nut which is threadedly engageable with an end of the shank adjacent the indicating member; the apparatus including: a receiving member, rotatably supported in the apparatus, for receiving the head connected to or for receiving a nut engageable with the shank; a device for effecting rota

Abstract: A seal assembly (1) described comprises an elastomeric component (10) having a sealing surface (25) for providing a sealing function, and an energising band (30), the elastomeric component (10) including an aperture for the energising band, wherein the energising band is adapted to fit in the aperture of the elastomeric component (10). In use, an outer surface of the energising band applies a force to the elastomeric component (10), to deform the (10) elastomeric component to form a seal at the sealing surface. The energising band (30) component includes non-metallic material.

Abstract: A seal is described which has good low temperature flexibility and includes a core (3) comprising an elastomer, and an outer layer (7) on the core comprising an elastomer. In some examples described, the Tg of the core is greater than the Tg of the outer layer. Seals described have high chemical resistance as well as good resistance to explosive decompression.

Abstract: A diaphragm (20) for a diaphragm valve is described. The diaphragm (20) has a body (22) comprising a first elastomer and a resistant layer (24) comprising a second elastomer having a different composition or formulation. Diaphragms described in examples have good flexibility with a high level of chemical resistance and low surface adhesion. A fixing attachment for fixing the diaphragm in the valve is also described.

Abstract: A sealing element of a hydrodynamic seal for relatively rotating elements, having a sealing surface (26) and consisting of or comprising at least one stabilising ply (58) of fabric impregnated with or disposed in a binder material which prevents relative movement of fibres of the fabric during use of the seal.

Abstract: A method of manufacturing a submergible machine protector bag comprising providing a tubular woven sleeve of reinforcing material, fitting the sleeve over a mandrel, embedding the sleeve in a waterproof elastomeric material to form a bag body and removing the bag body from the mandrel.

Abstract: A sealing structure for a rock drill bit includes an elastomeric diaphragm for installation in the drill bit so as to separate grease from drilling mud. The diaphragm has an aperture extending through it, and a plug is disposed in the aperture so as to form a mechanical seal with a wall of the aperture. The plug has a channel therethrough which is normally held sealed by a face of the aperture in the diaphragm. If the pressure of the grease exceeds pressure in mud on the other side of the diaphragm by more than a critical value, the diaphragm aperture deforms and allows grease to move through the plug channel and escape. The critical value can be varied by using, with the same diaphragm, plugs having different numbers, sizes and axial positions of plug channels.

Abstract: A roller-cone drill bit in which a double lip seal, made of a self-lubricating elastomer, protects the bearings from the mud.

Abstract: A shaft seal comprises a housing (22) containing a sealing ring (20,720) consisting of a sleeve (24,724) of plastics such as PTFE and an elastomeric ring (30,730) surrounding the sleeve. The dimensions of the sleeve (22,722) are such that fluid can leak between the sleeve and the shaft (10). Fluid pressure is applied to the elastomeric ring (24,724) to apply radial force to the sleeve (22,722) to reduce the leakage of fluid to an acceptable level while maintaining a hydrodynamically stable fluid film between the sleeve and the shaft. The energizing fluid pressure may be supplied from a separate source, or be derived from the system fluid pressure, for example by allowing the fluid to flow through ports (780) in the elastomeric ring (730) to the annular space (748) between the elastomeric ring and the housing. The fluid film between the sealing ring and the shaft reduces wear on the ring and shaft and reduces the heat generated by friction between the ring and the shaft.

Abstract: A rail pad or other shaped article in the form of a resiliently compressible extrudate having a textured surface and comprising particles or granules of cork or similar resiliently compressible cellular material substantially homogenously dispersed throughout a polymeric matrix of generally saturated thermoplastic synthetic resin, preferably ethylene/vinyl acetate copolymer, which has a stiffness modulus of not more than 1000 MPa and is extrudable under conditions at which the cellular material is not significantly degraded, the extrudate having a Poissons ratio less than that of the matrix.