Патент USA US2131660код для вставки
SePt- 27, 1933- |_. HEIDMANNY WATER JET APPARATUS Filed Sept. 22, 1937 ' - 12,131,660 2,131,660 Patented Sept. 27, 1938 UNITED" STATES PATENT v OFFICE & Ateliers de Constructions Electriques de Jeu mont, Societe Anonyme, Paris, France, a French ' joint-stock company Application September 22, 1937, Serial No. 165,211 In France September 29, 1936 (01. 299-2) 3 Claims. air equals the atmospheric pressure increased by The present invention relates to a water-jet apparatus of which the nozzle is maintained at the surface of the water by a ?oating body ca the ‘piezometric pressure at B. It is applicable in particular, for providing during the night, luminous fountains at the sur face of a river which during the day must be rendered free for the needs of navigation. In 10 this case, the ?oating body may. support the source of light and all necessary equipment and ' ~ ‘ Y. as pressure is ‘re-established in thewater pipe 4. At this moment, in fact,‘ the ejector 8 returns .1 into operation and graduallyl'empties the'vessel l of its water, in spite, of the small in?ow of' water which takes‘ place" through the tube 2. When the level comes below A, the ?otation is ensured and the whole rises up to thesurface. it The ejector continues'its operation, and‘. com pable of sinking automatically to the bottom 5 when its utilization is terminated. mechanism, in addition to the nozzle. , " Immersion is produced automatically as soon pletely' empties .thelvessel' While the air pene- . ’ ' trates through the tube 2.‘ In the following description, reference is made to the accompanying drawing which represents 15 three examples of carrying out the invention. Ballast or other known. means’ can be provided to ensure the stability’of the whole, both when 15 submerged and when on the surface. Figs. 1, 2 and 3 show the three forms of foun tain structure ?oating awash at the surface of the water. Fig. 2a shows the fountain structure of Fig. 2 in the submerged condition. A normally open cock ‘I placed upon the air tube 2 allows, when it is closed, of maintaining the vessel a?oat in spite of the stoppage of the water-jet. The improved apparatus shown in Fig. 1 com- ' _ . 20 It is permissible, without departing from the prises a ?oating body constituted by a vessel 1 . scope of the invention, to provide modi?cations behaving in practice in the same manner as the carrying at the upper part a tube 2 for the pas example of construction described above; in par sage of air. The vessel l supports a jet-nozzle 3 25 ticular, it is possible: ' connected to the source of water under pressure ~ (a) In order to accelerate the emptying of the . by a movable piping ll, ?exible or jointed. Upon vessel, which produces'the immersion, to arrange the nozzle 3 (or upon the piping 4) there is pro vided at 5 a tube feeding an ejector 6, the suc tion of which is ‘connected to the lower part of the vessel I. - in parallel with the ejector a second ejector of ' The operation of the improved nozzle-carrying apparatus is the following: I When the whole is ?oating normally and the _ Water-jet is in action, the water pipe 4 being under pressure feeds the ejector 6, which action maintains the vessel I empty of water, the air therein being maintained at the atmospheric pressure by the action of the tube 2. Flotation thus ensured. Immersion is produced automatically when the jet of water is stopped, from whichmoment on wards the water pipe 4 is no longer under pres sure. The ejector 6 ceases to operate and water penetrates into the vessel 1 by the ori?ce of the said ejector, while air escapes by the tube 2. _ When the level of water reaches the base of the tube 2, namely at A, the air ceases to escape. Now, the length of the tube 2 has been deter 5 mined in such a way that the ?otation ceases to be ensured from that moment onwards. In these conditions, the whole sinks to the bottom while the level continues to rise in the vessel and the air becomes compressed. The level becomes ?xed at B, such that the pressure of- the compressed 55 greater power which is only brought into action forthe raising operation. As shown in Fig. 2, 30 the vessel I, provided with the air‘ tube 2, nozzle 3', water pipe 4, tube 5, and ejector 6, as described with reference to Fig. 1, is also provided with a second or supplementary ejector 8 of greater power than the ?rst ejector 6. This second ejec 35 tor 'is'fed by the intermediary of a cock 9 which ' is controlled-by a ?oat l0 carried by the vessel; I. this cock is shown diagrammatically as a three way cock, which directs the water coming from the water pipe 4 either towards the supplemen 4.0 tary ejector B, or towards the jet-nozzle 3, ac cording as the vessel is submerged orawash. Fig. 2 shows the vessel at the surface, the ?oat It maintaining the cock 9 in position for feed- I ing water to the jet-nozzle 3 and to the ejector 45 6; Fig. 2a shows the vesselsubmerged after stop page of the water supply, the ?oat l0 therefore acting to turn the cock 9 into position for feeding the supplementary ejector 8, so thatv as soon as ' the water supply pressure ism-established in 50 the water pipe 4, the ejector 8 will operate to empty the vessel I of its enclosed water, the ' immersion therefore taking place more rapidly than with the single small ejector 6 provided in 55 the construction shown in Fig.‘ 1. 2 2,131,660 (b) In order to simplify the construction, to utilize the water-jet itself as ejector. Fig. 3 shows this form of construction, the vessel I being provided with the air tube 2, nozzle 3, and water-pipe 4, as described with reference to Fig. l; but instead of the ejector 6 fed by a tube 5, the water jet is itself used as ejector by arrang ing a suction tube I 3 extending from near the bottom of the vessel l to an ejector chamber I4 10 surrounding the upperend of the jet nozzle 3. What I claim is: 1. In water-jet apparatus of the character de— scribed, means for controlling the ?otation of the apparatus, comprising a jet-nozzle, a hollow 15 body adapted to support said jet-nozzle at the surface of a sheet of water, means for supplying water under pressure to said jet-nozzle, an air pipe entering said hollow body, the outer end of said air pipe being above said surface when said 20 body ?oats with said jet-nozzle upwards, said hollow body having an ori?ce opening below said surface when said body ?oatswith said jet-nozzle upwards, and means for driving water out of said body by the operation of said water-jet. 2. An automatically submersible water-jet ap 25 paratus, comprising a ?oating vessel, said vessel having an ori?ce below the surface of the water in which said vessel ?oats, a water-jet nozzle carried by said vessel, a pipe supplying water 30 under pressure to said nozzle, an air pipe entering said vessel, the outer end of said air pipe being above the surface of the water in which said ' vessel ?oats, the inner end of said air pipe so located as to trap air within said vessel when water enters through said ori?ce, an ejector adapted to discharge water from said vessel through said ori?ce, and a branch pipe feeding said ejector with water under pressure during the supply of water to said nozzle. 3. An automatically submersible water-jet ap~i paratus, comprising a ?oating vessel, said vessel having an ori?ce below the surface of the water in which said vessel ?oats, a water-jet nozzle 10 carried by said vessel, awater-pipe adapted to supply water under pressure to said nozzle, an air pipe entering said vessel, the outer end of said air pipe being above the surface of the water in which said vessel ?oats, the inner end of said air pipe so located as to trap air within said vessel when water enters through said ori ?ce, an ejector adapted to discharge water from said vessel through said ori?ce, a branch pipe feeding said ejector with water under pressure during the supply of water to said nozzle, a sup plementary ejector adapted to discharge water from said body during submersion, said supple mentary ejector being of greater power than the ?rst mentioned ejector, means including a three- h Way cock for feeding said supplementary ejector with water from said Water pipe, and a ?oat car ried by said vessel, said ?oat controlling said cock to direct the water'from said water pipe to said supplementary ejector when said vessel is sub merged and to said Water-jet nozzlewhen said vessel is awash. LEON HEIDMANN.