Abstract: An excavation tooth assembly comprising: a first tooth member comprising a body having a first end and an opposite second end that incorporates a socket configured to receive the nose portion of a second tooth member, the first tooth member also comprising laterally facing opposing surfaces, the opposing surfaces and one or more surfaces of the second tooth member defining at least in part a locking space; and a lock which is configured to be inserted into the locking space in an operative position to lock the first tooth member to the second tooth member.

Abstract: An axlebox retainer key (50) is disclosed for fitting to a pedestal leg (24) of a sideframe of a rail wagon bogie. The key (50) comprises a body which has a basal projection (52) which extends in use into a cavity or hole (42) which is formed in the pedestal leg (24). The key (50) also has an upper surface recess (60) which is arranged to receive a locking pin (66) which can be axially inserted to maintain the key (50) at the pedestal leg (24). The locking pin (66) is also inserted via the pedestal leg side wall (30) which incorporates a through-hole (82) through which the locking pin (66) is passed. To install the key (50), an operator first positions the basal projection (52) of the key (50) in the cavity or a hole (42) that is formed in the pedestal leg (24), and then moves the locking pin 66 across the key (50) via the through-hole (82) in the side wall (30) so as to secure the key (50) to the pedestal (24).

Abstract: A tool for disassembling an excavation tooth assembly comprising first and second tooth members, the tool comprising: a body comprising a driven portion and first and second legs, the legs extending generally in a common plane and defining an assembly receiving cavity therebetween, each of the first and second legs comprising a wedge portion adjacent the assembly receiving cavity which tapers toward a distal end of the respective leg, in use the tool being adapted to locate over a join defined between the first and second tooth members such that the wedge portion of the first and second legs locates within the join and wherein in use a force applied to the driven portion is arranged to drive the wedge portion further into the join so as to cause separation of the first and second tooth members in a direction transverse to the movement of the first and second legs.

Abstract: A shipping container support mechanism for a rail freight wagon is adjustable between a retracted position in which a container can be supported in a well of the wagon between elevated end platforms which extend over wheels and bogies. In the deployed, extended position, the mechanism supports an end region of a container, the opposite end of which can be supported on another such mechanism or an end platform. The support mechanism is mountable in the side wall of the wagon and has a pivotal support arm which can move from a stowed position in the wagon frame to a horizontally extended position.

Abstract: A freight rail car suspension has independent but co-operating springs; a first spring is load carrying and has a variable damping function and a second control spring operates on a friction shoe to apply a constant damping component. A practical embodiment has a friction shoe engaged for vertical displacement by the first spring which is mounted on a side frame and the second spring is obliquely arranged between the bolster of the bogie and the friction shoe, which has guides to cause it to move into greater frictional engagement upon load being applied through the spring. This arrangement provides a dual damping characteristic involving both constant damping and variable damping forces.

Abstract: Components for use in a locking connector system, such a heavy duty shackles, comprise a retainer, a body structure and pin which is axially moveable into a receiving cavity of the body structure, the body structure having a transversely directed cavity interconnecting with the cavity and have a latching shoulder.

Abstract: A load equaliser for supporting a drag line bucket from first and second cables is disclosed. The load equalizer has a main body having a central portion and side portions providing respectively first and second clamps for clamping end portions of the first and second suspension cables. A rotatable mounting is provided in the suspension central portion of the main body. A link body is suspended below the main body and connected thereto through the rotatable mounting whereby freedom of relative rotational motion is provided at least about an axis substantially at right angles to the direction between the clamps. The rotatable mounting is in a zone extending substantially between the clamps.

Abstract: A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the bucket whereby pivotal connections at the upper end of each pivot arm may be disposed over the rim and within the bucket zone. Thus the pivot arms may be moved in use through greater than 90° from a position in which the bucket is vertically suspended. The pivot arms act to spread splayed hoist chains without a spreader bar.

Abstract: A freight rail car suspension has independent but co-operating springs; a first spring is load carrying and has a variable damping function and a second control spring operates on a friction shoe to apply a constant damping component. A practical embodiment has a friction shoe engaged for vertical displacement by the first spring which is mounted on a side frame and the second spring is obliquely arranged between the bolster of the bogie and the friction shoe, which has guides to cause it to move into greater frictional engagement upon load being applied through the spring. This arrangement provides a dual damping characteristic involving both constant damping and variable damping forces.

Abstract: An axlebox retainer key (50) is disclosed for fitting to a pedestal leg (24) of a sideframe of a rail wagon bogie. The key (50) comprises a body which has a basal projection (52) which extends in use into a cavity or hole (42) which is formed in the pedestal leg (24). The key (50) also has an upper surface recess (60) which is arranged to receive a locking pin (66) which can be axially inserted to maintain the key (50) at the pedestal leg (24). The locking pin (66) is also inserted via the pedestal leg side wall (30) which incorporates a through-hole (82) through which the locking pin (66) is passed. To install the key (50), an operator first positions the basal projection (52) of the key (50) in the cavity or a hole (42) that is formed in the pedestal leg (24), and then moves the locking pin 66 across the key (50) via the through-hole (82) in the side wall (30) so as to secure the key (50) to the pedestal (24).

Abstract: Components for use in a locking connector system, such a heavy duty shackles, comprise a retainer, a body structure and pin which is axially moveable into a receiving cavity of the body structure, the body structure having a transversely directed cavity interconnecting with the cavity and have a latching shoulder.

Abstract: A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the bucket whereby pivotal connections at the upper end of each pivot arm may be disposed over the rim and within the bucket zone. Thus the pivot arms may be moved in use through greater than 90° from a position in which the bucket is vertically suspended. The pivot arms act to spread splayed hoist chains without a spreader bar.

Abstract: An articulated railway bogie connector 10 is shown comprising a male connector component 12 and a female connector component 14. The articulated connector 10 is adapted to pivotally mount to a bolster 54 of a railway bogie 50. The male and female connector components 12, 14 are arranged to be welded to a skeletal body of adjacent railway wagons. The male and female connector components 12, 14 each include a pair of constant contact sidebearer outrigger brackets and associated wear plates located. The outrigger brackets such as 16A/B are in the form of a pair of wing members cast integral with and extending laterally of the male connector component 12. However the wing members such as 16A/B may be welded or otherwise formed integral with, in this instance, the male connector component 12. The outrigger brackets or wing members 16A/B and 18A/B are adapted for fixing of a wear plate which is arranged in use to contact corresponding constant contact sidebearers mounted to the articulated bogie 50.

Abstract: A bolster 14 for a bogie of an articulated railway wagon is shown including supports for constant contact sidebearers in the form of two pairs of brackets such as 26A and 26B being integral with the bolster 14 at its opposing respective ends. The brackets such as 26A are each adapted for fixing of the constant contact sidebearers which in turn are arranged to contact a corresponding wear plate mounted to an articulated connector 50. In a preferred example the corresponding wear plates are mounted to corresponding brackets 52A, 52B which are cast integral with respective male or female articulated connector components 54 or 56. Each bracket 26A/B extends laterally from the bolster 14 and, when viewed in plan, each bracket 26A/B has a longitudinal axis of symmetry which is orthogonal to a radius from a central rotational point of the articulated connector 50 of the railway wagon.