Abstract: Apparatus for forming a non-rotating helix of metal strip. The apparatus includes a store for the strip rotatable about the axis of the helix. The store has a radially inwardly facing circumferential opening from which the strip is withdrawn by guide shoes which are also rotatable about the axis of the helix but at a different rotational speed to that of the store so that the difference in diameter of the strip on leaving the store and entering the helix is accommodated. The guide shoes deliver the strip to guide rollers rotating with the guide shoes by which the strip is guided in a spiral to non-rotating helix-forming shoes from which the coils of the helix are delivered in an axial direction.

Abstract: A non-adhesive retaining device for medical-surgical tubes, such as endotracheal tubes or nasal cannulae, have a soft plastic staging member held by a headband in contact with the upper lip adjacent to the nose with a latex rubber cuff band grasping the tube. This assembly forms a sanitary type simple mount that engages the skin to hold the tube in place at the facial entrance. The cuff grasps the tube to secure it without lateral, rotational or axial movement. This retaining device serves as a comfortable flexible means that will conform to normal body movement and handling without irritation to skin or facial entrance. The staging member when contacting the lip area has at the center a protruding arm extending at an angle to retain at its center end the cuff that surrounds the tube in position for entry straight into the facial passage without bending or rubbing on the rim of the patients nostril or mouth as the case may be.