GB279527A - Improvements relating to the propulsion of vessels - Google Patents

Abstract

279,527. Schroeder, F. W. June 1, 1926. No Patent granted (Sealing fee not paid). Resistance to propulsiun, reducing. - In ships provided with sets of longitudinal tubes of triangular cross-section disposed beneath the bottom and having orifices from which air or gas is ejected for propelling and steering, means are employed for directing the air or gas upwardly and rearwardly in the aft set of tubes and upwardly and forwardly in the forward set of tubes, also a multiway rotary valve is used for controlling the supply to the sets of tubes. The tubes are arranged in channels between three keels on a closed buoyant bottom chamber. The aft main tubes 10, Figs. 1 and 3, are arranged in recesses in a buoyant chamber 3 between keel members 4 - - 6 and are secured to headers 11 and take air under the control of a valve 20 from a reservoir 32 fed by an air compressor 31, minor forward tubes 19, 19<1> being controlled by the same valve 20. The tubes 10 are of wood or incorrodible material, the upper side 10', Figs. 4 and 5, being secured to the flat bottom of the vessel. The inclined sides 10<2> are provided with a staggered series of flared openings 13 near the bottom, there being grooves 15 between adjacent openings forming surfaces which direct the air upwardly and rearwardly. Each tube has a tubular casting 17 with a union 18. for attachment to the header, the casting having a hand hole for facilitating cleaning. The valve casting has outlets 21' - - 21<5>. Figs. 9 and 10, connected to the reservoir and headers and contains a conical valve 22 with cross passages formed by members 22<1>, 22<2>, 223, whereby on rotation of the hand wheel 26 the ship may be manoeuvred. The wheel has a pointer 25 which moves over an indicating scale on the dial 24. Specification 4231/06, and 2298/15, [Class 114, Ships &c., Propelling &c.], are referred to.