Abstract: A measurement tool for use in pneumatic percussion drilling comprises a body comprising one or more measuring instruments positioned in a drill string above a pneumatically operated hammer of the drill string.

Abstract: A damper apparatus for use in pneumatic percussion drilling comprises a body having one or more damper apparatus supporting a measuring instrument. Each damper apparatus dampens shock/vibration from the pneumatic percussion drilling that is experienced by the measuring instrument.

Abstract: A drill rod for transferring torque comprises a casing for connection in a drill string. The casing is coupled to an internal body by a torque transferring mechanism at each end of the casing such that torque applied to an end of the drill rod is transferred through both of the casing and the body.

Abstract: A drill rod comprises a body comprising one or more fluid supply channels, a fluid return channel and one or more compartments.

Abstract: An earthmoving equipment bucket corner has a first portion, a second portion and an intermediate portion between the first and second portions, all in different planes to one another. A boss or lug is provided on the leading edge of the intermediate portion. The intermediate portion is angled relative to both the first and second portions, which alleviates the load stresses otherwise created in a traditional 90° corner. The first portion has a wall with a taper or bevel towards a forward edge. The second portion has a wall with a leading flared wall portion that widens the corner at the front. The intermediate portion is preferably at an included angle of around 120° to 170° with respect to the respective walls of the first and second portions.

Abstract: A connection assembly for mounting a ground engaging tool to earthmoving equipment includes a body into which is received a resilient member, a force applying member, a locking member with an O-ring seal to be received in an annular channel around the locking member, a locking member stop received in a hole in the locking member, and a body stop to be fitted into an aperture under the body. The locking member stop prevents the force applying member from rotating within the body when the bolt is rotated and advances the piston by threaded engagement.

Abstract: A connection assembly for mounting a ground engaging tool to earthmoving equipment includes a body into which is received a resilient means, a force applying member, a locking member with an O-ring seal to be received in an annular channel around the locking member, a locking member stop received in a hole in the locking member, and a body stop to be fitted into an aperture under the body. The locking member stop prevents the force applying member from rotating within the body when the bolt is rotated and advances the piston by threaded engagement.

Abstract: An earthmoving equipment bucket corner has a first portion, a second portion and an intermediate portion between the first and second portions, all in different planes to one another. A boss or lug is provided on the leading edge of the intermediate portion. The intermediate portion is angled relative to both the first and second portions, which alleviates the load stresses otherwise created in a traditional 90° corner. The first portion has a wall with a taper or bevel towards a forward edge. The second portion has a wall with a leading flared wall portion that widens the corner at the front. The intermediate portion is preferably at an included angle of around 120° to 170° with respect to the respective walls of the first and second portions.