Abstract: A work head adapted to support at least one elongate work piece, said work head having a first drive shaft capable of rotation about a central axis, said work pieces being supported from the work head at a position spaced radially from the central axis such that the axis of each work piece is in the same plane as the central axis, the work pieces supported from the work head to be capable of rotation about their central axes, the drive shaft adapted to be caused to rotate by a first drive, the work pieces adapted to be caused to rotate by a second drive.

Abstract: A drive enabling relative movement between two members, said one member being supported from the other member for relative movement parallel to a first axis or concentrically about said first axis, a drive member received between the members and being capable of movement relative to said members along a second axis which is transverse to the path of said relative movement between the members, the drive member being movable with the one member along the path of said relative movement, the drive member cooperating with the other member whereby with movement of the drive member along the second axis the members are subjected to said relative movement.

Abstract: An attachment for a parenteral device wherein the parenteral device comprises a body defining space and a duct having an opening at its outer end, the duct in use is intended to convey parenteral fluid to or from the space, said attachment comprising a housing adapted to be removably engageable with the body and to be supported by the body, the housing having an engagement portion (13) having a flow path (29) which is to be in communication with the opening and the duct when the engagement portion is in said sealing engagement with the body the housing further comprising an elongate portion (11) slidably supporting a hollow needle (15) wherein the needle has a free end (17) which is open and a handle (20) mounted to the other end, the other end of the needle being closed, the needle provided with a second opening (19) formed through the wall of the needle intermediate of the ends of the needle, the needle being slidably accommodated within the elongate housing to be movable from or to a stored position at whi

Abstract: A jig intended to in use hold a set of blanks (11) during machining of the blanks where the blanks have a rod-like portion, the jig having a body adapted to be mounted to a drive shaft to cause rotation of the body about an axis of rotation, the body having an outer portion (15) and an inner portion (17) wherein the outer and inner portions are capable of angular displacement relative to each other, the portions having opposed faces which are concentric and define clamping faces which in use are intended to support the rod-like portions of a set of blanks such that their central axes are substantially parallel to the axis of rotation and at least one end extends axially beyond the body, the drive member shaft being capable of causing relative angular displacement between the outer portion and the inner portion and causing the joint rotation of the jig about the central axis.

Abstract: A locating means (13) adapted to be supported from one element (11) for engagement with another element to retain the two elements in engagement with each other, the locating means comprising a lug (39) to be displaceable between an extended position at which it extends from the locating means and a retracted position at which it is located inward of the extended position, a driving member (29) slidably supported from the one element the lug and driver having at least two opposed faces, the other element having an abutment which is intended in use to be engaged by the lug when the lug is in the extended position and the two elements are in engagement with each other in order to retain the elements in said engagement with each other, the opposed faces being configured such that movement of the driving member relative to the lug causes the displacement of the lug.

Abstract: A work head adapted to support at least one elongate work piece, said work head having a first drive shaft capable of rotation about a central axis, said work pieces being supported from the work head at a position spaced radially from the central axis such that the axis of each work piece is in the same plane as the central axis, the work pieces supported from the work head to be capable of rotation about their central axes, the drive shaft adapted to be caused to rotate by a first drive, the work pieces adapted to be caused to rotate by a second drive.

Abstract: A jig intended in use to hold a set of blanks of rod-like or wire-like form during machining, said jig having a body adapted to be mounted to a drive shaft for rotation of the body about an axis of rotation, the body having an outer portion and an inner portion wherein the inner and outer portions are capable of angular displacement relative to each other, the portions having opposed faces which are concentric and which define clamping faces which in use are intended to support the set of blanks such that their central axes are substantially parallel to the axis of rotation and at least one end extends axially beyond the body.

Abstract: A jig intended in use to hold a series of blanks of rod-like or wire-like form during machining, the jig having a body adapted to be mounted to a drive shaft for rotation of the body about an axis of rotation, the body having a perimeter which on rotation of the jig defines a rotation path, the perimeter being defined by a set of stations located around the rotation path, each station having a pair of opposed clamping surfaces, one side of the clamping surfaces being located at the rotation path, in use the clamping surfaces being intended to receive between themselves a set of said blanks, one end of said blanks being positioned to extend outwardly from the one side to extend beyond the rotation path. The clamping surfaces can have a cylindrical or polygonal shape and the blanks can be supported to extend in a direction transverse to the rotation path or parallel to the rotation path. A process and grinding system are also claimed.

Abstract: A jig intended in use to hold a series of blanks of rod-like or wire-like form during machining, the jig having a body adapted to be mounted to a drive shaft for rotation of the body about an axis of rotation, the body having a perimeter which on rotation of the jig defines a rotation path, the perimeter being defined by a set of stations located around the rotation path, each station having a pair of opposed clamping surfaces, one side of the clamping surfaces being located at the rotation path, in use the clamping surfaces being intended to receive between themselves a set of said blanks, one end of said blanks being positioned to extend outwardly from the one side to extend beyond the rotation path. The clamping surfaces can have a cylindrical or polygonal shape and the blanks can be supported to extend in a direction transverse to the rotation path or parallel to the rotation path. A process and grinding system are also claimed.

Abstract: A tube connection adapter for coupling one or more tubes of a chest drainage system to a bottle. The adapter has a body adapted to fit onto the mouth of a bottle, the body having an inlet fitting adapted to be connected to a tube of the drainage system to permit entry of fluid into the bottle, and a pressure relief valve adapted to communicate with the interior of the bottle to permit release of pressure in the event of a pressure build-up occurring within the bottle. The pressure relief valve may include a simple ball valve or poppet valve and can be fitted into the adapter body even when there are two or more inlet/outlet fittings.