Abstract: An adjustable harness 10 for a self contained breathing apparatus, a back plate 12, a sliding plate 16, a pair of shoulder straps 20, 22 and a belt 18. The sliding plate 16 can move longitudinally with respect to the back plate between the extended position and the un-extended position. Shoulder straps 20, 22 are fixed to an upper portion of the sliding plate and a belt 18 is fixed to a lower portion of the back plate. A valve 28 is provided at the bottom of the back plate 12 so that a cylinder of breathable gas connected to the valve may be retained by a retaining strap 13. Hoses 24, 26 are attached to the sliding plate 16, cross over in the region of the opening 14 and as such the side of the sliding plate 16 to which they are attached is different to the side of the valve 28 from which they leave. Guide channels 34 are shaped to retain the hoses 24, 26. The hoses 24, 26 fold and unfold within the confines of the plates 12, 16 to prevent snagging.

Abstract: A cylinder back plate includes a frame member 11 and a cylinder clamp 12 connected to the frame member 11 by means of a pivot 13. The cylinder clamp 12 comprises a band of rigid or semi-rigid material. The cylinder clamp 12 has a retaining position with respect to the frame member 11, wherein the cylinder clamp extends substantially perpendicularly to the plane of the frame member. The frame member 11 lies parallel to a back plate of the harness or is constituted by the back plate of the harness. Thus, when the cylinder clamp 12 is in the retaining position a cylinder can be retained securely to the frame member and sliding of the cylinder relative to the frame member or back plate can be prevented. When it is desired to attach a new cylinder to the harness, the cylinder clamp 12 can be pivoted into a loading position.

Abstract: An adjustable harness 10 for a self contained breathing apparatus, a back plate 12, a sliding plate 16, a pair of shoulder straps 20, 22 and a belt 18. The sliding plate 16 can move longitudinally with respect to the back plate between the extended position and the un-extended position. Shoulder straps 20, 22 are fixed to an upper portion of the sliding plate and a belt 18 is fixed to a lower portion of the back plate. A valve 28 is provided at the bottom of the back plate 12 so that a cylinder of breathable gas connected to the valve may be retained by a retaining strap 13. Hoses 24, 26 are attached to the sliding plate 16, cross over in the region of the opening 14 and as such the side of the sliding plate 16 to which they are attached is different to the side of the valve 28 from which they leave. Guide channels 34 are shaped to retain the hoses 24, 26. The hoses 24, 26 fold and unfold within the confines of the plates 12, 16 to prevent snagging.

Abstract: A cylinder back plate includes a frame member 11 and a cylinder clamp 12 connected to the frame member 11 by means of a pivot 13. The cylinder clamp 12 comprises a band of rigid or semi-rigid material. The cylinder clamp 12 has a retaining position with respect to the frame member 11, wherein the cylinder clamp extends substantially perpendicularly to the plane of the frame member. The frame member 11 lies parallel to a back plate of the harness or is constituted by the back plate of the harness. Thus, when the cylinder clamp 12 is in the retaining position a cylinder can be retained securely to the frame member and sliding of the cylinder relative to the frame member or back plate can be prevented. When it is desired to attach a new cylinder to the harness, the cylinder clamp 12 can be pivoted into a loading position.