Abstract: An expansion hose for power steering plants of motor vehicles. The hose includes an outer pressure hose (2) connected to an inlet side end member (1) and to an outlet side end member (3). An inner flexible hollow body (5) is arranged coaxially with pressure hose 2, and which at the inlet side is connected to a nipple plug (4) of the inlet side end member (1) and at the outlet side extends freely into the outlet side end member (3) in its outlet channel (6) with a radial clearance. The nipple plug (4) includes in addition to the axial passage (9) located at the center axial passages (10) at a radial distance outwardly therefrom and distributed circumferentially, and which lead into the annular space (8) between the outer pressure hose (2) and the inner flexible hollow body (5).

Abstract: The frames of a tube winding machine comprises a cylinder with a series of spiral grooves milled in its surface to house rotary flexible shafts. The cross-section of each groove is a major segment of a circle. A guide ring is provided to ensure that the shafts enter the grooves in a direction parallel to the cylinder axis at the drive end.

Abstract: A vacuum cleaner hose is equipped with an electrical cable which runs in parallel to the longitudinal axis of the vacuum cleaner hose in a groove or in contact with a flattened portion of the vacuum cleaner hose which is encased together with the electrical conductor by an outer jacketing hose. Alternately, the cable may be enclosed in a smaller diameter hose which in turn is connected to the outer wall of the vacuum cleaner hose in the groove formed in the vacuum cleaner hose. The electrical cable may be embedded in a foam material which forms a segment of the vacuum cleaner hose inside the jacketing hose.