A cutting machine waste extraction apparatus is provided for a cutting machine that cuts a plate where the cutting machine waste extraction apparatus is supported adjacent a cutting area at a cutting table. The cutting machine produces waste at the cutting area during the cutting of the plate where the apparatus includes a ducting system having a first duct that receives the waste from the plate, and a second duct that receives the waste from the first duct. The first duct is movable along the length of the second duct and the second duct includes a lengthwise opening which is sealed by a flexible belt. The flexible belt is deformable from sealed contact with the second duct, adjacent a junction apparatus, where the junction apparatus provides a fluid connection between the first duct and the second duct.

The invention relates to a system for circulating fluid between at least one first body or housing (2) and at least one second body or housing (3), the system comprising an arrangement of multiple fluid connections (4, 4, 4, 4) between, on the one hand, the first body or housing (2) provided with at least two mutually separate openings (5, 5, 5, 5) and, on the other hand, at least one second body or housing (3) also comprising mutually separate openings, each connection establishing a sealed fluid connection between an opening of the first body or housing (2) and an opening of the second body or housing (3), or of one of the second bodies or housings. Said system (1) is characterised in that each of the fluid connections (4, 4, 4, 4) is rigid but hinged, and formed by successive interlocking of a rigid female tubing (7, 7, 7, 7) and a rigid or diabolo pipe (9, 9, 9).

A fluid coupling system is provided that includes a first coupler that can be mounted to a first support, and a second coupler that can be mounted to second support. Each of the first and second couplers include a coupler body extending through openings of the respective support walls, and gaskets positioned over the coupler body and on opposing sides of the respective walls of the first and second supports. The gaskets form a fluid tight seal between the first and second coupler bodies and the respective supports, while permitting pivoting of the first and second couplers relative to the respective supports to accommodate for misalignment of the first and second couplers. In some embodiments the first and second supports can be walls of a container or can include framing that supports the containers.