A cord lock for adjusting the length of a cord includes a main body with a through hole, in which a cord can be inserted. A friction member is blocked in the main body in such a manner that a portion of a tooth thereof narrows the gap of the through-hole in order to limit the sliding of the cord.

An articulating, rotating pipe bursting head device is provided. More particularly, the improved pipe bursting head device disclosed herein comprises a coupling means at the back or posterior end of the bursting pipe head device which connects the bursting pipe head device to the replacement or product pipe, typically through a universal duct puller attached to the front or anterior end of the product pipe. In one preferred embodiment, the coupling means allows for articulation of the replacement pipe relative to the bursting pipe head device. In another preferred embodiment, the articulating coupling means allows for articulation from 0° through 90°. In another embodiment, the coupling means allows for rotation of the replacement pipe relative to the pipe bursting head device. In another embodiment this rotating coupling means allows for 360° rotation. Thus, the present disclosure describes an articulating, rotating bursting pipe head device and method of use.

An articulating, rotating pipe bursting head device is provided. More particularly, the improved pipe bursting head device disclosed herein comprises a coupling means at the back or posterior end of the bursting pipe head device which connects the bursting pipe head device to the replacement or product pipe, typically through a universal duct puller attached to the front or anterior end of the product pipe. In one preferred embodiment, the coupling means allows for articulation of the replacement pipe relative to the bursting pipe head device. In another preferred embodiment, the articulating coupling means allows for articulation from 0° through 90°. In another embodiment, the coupling means allows for rotation of the replacement pipe relative to the pipe bursting head device. In another embodiment this rotating coupling means allows for 360° rotation. Thus, the present disclosure describes an articulating, rotating bursting pipe head device and method of use.

An interchangeable attachment device includes a first attachment interface supporting a first component, and a second attachment interface supporting at least one second component. The first and second attachment interfaces define cooperating attachment portions arranged for securing an end portion of the first attachment interface to an end portion of the second attachment interface to form an attachment junction.

An interchangeable attachment device includes a first attachment interface supporting a first component, and a second attachment interface supporting at least one second component. The first and second attachment interfaces define cooperating attachment portions arranged for securing an end portion of the first attachment interface to an end portion of the second attachment interface to form an attachment junction.

A tensioning arrangement for a bearing ring, which introduces a compressive force towards a rotational centre of the bearing ring, to prevent the bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement includes a strap and a tensioner. The strap has a connector at each end, and tensioner has an element for connecting to the connectors. The tensioner also has an element for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring.

A tensioning arrangement for a bearing ring, which introduces a compressive force towards a rotational centre of the bearing ring, to prevent the bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement includes a strap and a tensioner. The strap has a connector at each end, and tensioner has an element for connecting to the connectors. The tensioner also has an element for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring.

A tensioning arrangement for a bearing ring, which introduces a compressive force towards a rotational centre of the bearing ring, to prevent the bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement includes a strap and a tensioner. The strap has a connector at each end, and tensioner has an element for connecting to the connectors. The tensioner also has an element for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring.

A tensioning arrangement for a bearing ring, which introduces a compressive force towards a rotational centre of the bearing ring, to prevent the bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement includes a strap and a tensioner. The strap has a connector at each end, and tensioner has an element for connecting to the connectors. The tensioner also has an element for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring.

A panel system for the containment of landslides caused by partial collapses and also by “rock breakdowns”, for use in the fortification of mining tunnels, hillsides and roads, together with anchor bolts and plates, comprising a network constituted by straps of metal or other material resistant to traction or with the capacity of tearing along the strap (1) (2) (3), with each node of this network firmly linked with a buckle (6) (7) (8) (16) and with a frame (20) attached to this network, where the frame comprises flat tendons (17) near the perimeter of the panel, linked to plates with lugs (D11) or with flat connectors (12) (13) (14) (15) which go beneath the normal plates.