An airship mooring‐mast has a conical cup member carried upon a crosshead secured to two recoil cylinders slung by arms from a horizontal shaft carried by a vertical pillar rotatable about a vertical axis. The vertical pillar rotates about or within a central tubular member at the top of the mast. The cylinders are double, and the inclination of the cylinders as well as the extension of the crosshead can be controlled by fluid pressure. The axial movement of the cylinders may be effected by a separate cylinder or by a small motor.
(1929), "Month in the Patent Office: A Selection from Important Recently Published Aircraft and Aero Engine Specifications", Aircraft Engineering and Aerospace Technology, Vol. 1 No. 1, pp. 39-40. https://doi.org/10.1108/eb029100
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