Abstract: A clamp comprising: a first arcuate portion; a second arcuate portion hingedly connected to the first arcuate portion; and a ratchet mechanism for locking the first and second arcuate portions in a closed position; wherein the ratchet mechanism comprises a linear rack provided with the second arcuate portion and a pawl provided with the first arcuate portion for receiving the linear rack; wherein the linear rack comprises one or more asymmetrical teeth; wherein the pawl comprises a plurality of fingers which are biased into engagement with the teeth of the linear rack.

Abstract: A clamp comprises a first arcuate portion, a second arcuate portion connected to the first arcuate portion via a hinge, and a ratchet mechanism for locking the first and second arcuate portions in a closed position. The first and second arcuate portions each comprise a circumferential groove which tapers in a radial direction from an opening of the groove to a base of the groove. The groove of one of the first and second arcuate portions has an angular extent which exceeds 180 degrees and has an opening with a width which is narrower at opposing ends of the groove than at a position partway between the ends.

Abstract: A clamp comprising: a first arcuate portion; a second arcuate portion hingedly connected to the first arcuate portion; and a ratchet mechanism for locking the first and second arcuate portions in a closed position; wherein the ratchet mechanism comprises a linear rack provided with the second arcuate portion and a pawl provided with the first arcuate portion for receiving the linear rack; wherein the linear rack comprises one or more asymmetrical teeth and the pawl comprises a finger which is configured to engage with the teeth of the linear rack.

Abstract: A clamp comprising: a first arcuate portion; a second arcuate portion hingedly connected to the first arcuate portion; and a ratchet mechanism for locking the first and second arcuate portions in a closed position; wherein the ratchet mechanism comprises a linear rack provided with the second arcuate portion and a pawl provided with the first arcuate portion for receiving the linear rack; wherein the linear rack comprises one or more asymmetrical teeth; wherein the pawl comprises a plurality of fingers which are biased into engagement with the teeth of the linear rack.

Abstract: A tamper-evident cover for a component, the component comprising: first and second portions; and an actuator mechanism for moving the first and second portions or allowing the first and second portions to move relative to one another; wherein the cover comprises: a cover portion defining a cavity configured to receive the actuator mechanism of the component so as to prevent access to the actuator mechanism from the exterior of the cover portion; and a retention barb connected to the cover portion and housed within the cavity formed by the cover portion such that it is inaccessible from the exterior of the cover portion, the retention barb being configured to engage with the component so as to retain the cover portion over the actuator mechanism.

Abstract: A clamp 2 comprising: a first arcuate portion 4a; a second arcuate portion 4b connected to the first arcuate portion via a hinge; and a ratchet mechanism for locking the first and second arcuate portions in a closed position; wherein the first and second arcuate portions each comprise a circumferential groove 16a, 16b which tapers in a radial direction from an opening of the groove to a base of the groove; wherein the groove of one of the first and second arcuate portions 4a, 4b has an angular extent which exceeds 180 degrees and has an opening with a width w1, w2, w3 which is narrower at opposing ends of the groove than at a position partway between the ends.

Abstract: A nut and seat assembly is provided for a clamp. A nut is tightened onto a bolt and a clamp member has a seat for the nut and an aperture defined by prongs. The bolt is inserted laterally into the aperture and the nut is tightened axially against the set. Tightening the nut onto the seat prevents outward movement of the prongs away from the bolt as the nut holds the prongs in place.

Abstract: A connector for a tube comprises a hollow spigot and an outer securing member for capturing a tube therebetween. The hollow spigot includes an internal bore matched to that of the tube, a tapered end with a frusto-conical length and its small diameter at its distal end and a parallel length inwards of the tapered end, with a diameter less than the maximum tapered diameter and an annular rib inwards of the parallel length to provide an end stop for the tube when fitted onto the spigot. The outer securing member includes an internal tapered bore matched to the frusto-conical length and of respectively increased diameter to accommodate the tube therebetween and at least one latch formation spaced from the member's large tapered end for engaging behind the annular rib.