GB2117841A

GB2117841A - Tide-thrust twist turbine

Info

Publication number: GB2117841A
Application number: GB08133758A
Authority: GB
Inventors: Jane Evelyn Trembath
Original assignee: Individual
Current assignee: Individual
Priority date: 1981-11-09
Filing date: 1981-11-09
Publication date: 1983-10-19

Abstract

To produce power from the tides, blades 2 are set spirally about a shaft or spindle which drives a turbine rotor 5 at its upper end. To the stator 6 is affixed an arm 7 carrying a weight 9, the position and value of which are adjusted as a metronome, which is set and kept in motion by clockwork 8. When the tide is flowing or ebbing the pressure of water on the spiral blades 2 causes the shaft 1 to rotate, and activate the turbine. When the tide is slack the clockwork metronome swings the shaft to and fro, the resulting pressure of the blades 2 on the water causing the shaft 1 to rotate. <IMAGE>

Description

SPECIFICATION The tide-thrust twist turbine In the interests of Ecology, Conservation, and the Preservation of Mankind upon Earth, it becomes daily more urgent to device a means of producing power without having recourse to wastage of fuels, production of pollution, or the dangers of Nuclear Fission.

The Tide-Thrust Twist Turbine is directed to this end. As its name indicates, the device consists of a turbine whose motive power is provided by the ebb and flow of the tides, which take place with religious and relentless regularity twice in every twenty five hours, in each direction.

It comprises:- 1) A light rod, spindle or shaft 1 of circular section.

2) Along this rod 1 is set a series of blades 2 or flanges. Each blade 2 is attached by its base along the length of the spindle 1.

The upper and lower edges of each blade are parallel with each other and form the arc of a quadrant of a circle, from the outer edge to the nearest point on the circumference of tha spindle, where they merge with it-Figure 1.

The anterior surface 3 is quadrilateral and follows exactly the line of the upper and lower edges. The posterior surface 4 is streamlined, forming an arc of 1/6th of a circle from the outer edge to the opposite side of the spindle 1 with which it merges-Figures 1 and 1A 2) Between the upper and lower edges it is of a graduated convexity, being flat at the outer edge and reaching its greatest convexity at the point of contact with the surface of the spingle 1.-Figure 1.

3) The blades 2 are vertically spaced from each other up the spindle 1 with each blade 2 being 10 degrees further round the spindle and the distance of its own depth be 3) The blades 2 are vertically spaced from each other up the spindle 1 with each blade 2 being 10 degrees further round the spindle 1 from its neighbour, and the distance of its own depth below it so that the maximum thrust of the tide is exerted up on each blade 2 in turn.-Figures 2 and 3. Thus the blades 2 form a spiral around the spindle 1, comparable with the setting of bristles on a carpet-sweeper-Figures 4 and 5.

4) One end of the spindle 1 and its blades 2 will be constantly in the water and the other, or dry end will be permanently above or outside the water, and protected from the elements.

5) The dry end incorporates the rotors 5 of the turbine.

6) The impact of the tide on each successive blade 2 causes the spindle 1 to revolve, and it will do this when the spindle 1 is set at any angle.

Ideally, however, the rod 1 should be erected vertically, i.e. at right angles to the Earth's surface, but small variations due to local topography are permissible.

7) The stator 6 of the turbine is held in position by a gantry which is erected on the sea (or river) bed.

8) The exact dimensions of the whole equipment and particularly of the outer edges of the blades 2 can vary with local requirements and conditions, but there should be two complete turns of spiral below water at the lowest spring tides. For the proportional measurements of the blades 2 and spindle 1. See Figures 1.

9) From the stator 6 another shaft 7 continues upwards upon which is set a suitable weight 8.

This shaft 7 is pivoted around the centre of gravity of the turbine. This forms a pendulum in the manner of a metronome. When the tide falls slack, before and after high and low water, this pendulum 7 is set in motion and maintained thus by simple clockwork 8. (Clockwork is not my invention and forms no part of this patent) so that the rotation of the spindle 1 and its incorporate rotor 5 is brought about by the pressure of the blades 2 on the water, instead of the pressure of the water on the blades 2. Mahomet comes to the mountain.

10). A bonus. Should there by any breeze, wind or gale blowing, it will act upon the exposed parts of the spiral as a windmill, thus increasing the effect.

1 The whole to be constructed of a light, strong, durable material, which is impervious to salt water, rust, or other corrosion, and is resistant to marine organisms (fouling).

12) It is perfectly possible to erect this installation at other angles to the surface than the perpendicular. As the shaft 1 approaches more nearly to the horizontal it may well be easier to adopt a different technique for moving the spindle to and fro at slack water. This is not unduly difficult and forms no part of this patent.

But the theory and principle of swinging the spindle at slack water does.

The prefered form of blade shown in Figure 1 is configured as set out below: CE=X=Radius of spindle BC=4.5X LABC=900 1AFD=600 LBED=1 57.50 AC=1/4 x 27dBC AD=1 /6x 27rFD Claims (Filed on 14/2/83) 1. A water-powered turbine comprising a vertical shaft with blades carried by the shaft in a spiral formation.

2. A turbine installation comprising a turbine according to Claim 1 arranged such that when desired the turbine can be swung in a vertical plane by mechanical means.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION The tide-thrust twist turbine In the interests of Ecology, Conservation, and the Preservation of Mankind upon Earth, it becomes daily more urgent to device a means of producing power without having recourse to wastage of fuels, production of pollution, or the dangers of Nuclear Fission. The Tide-Thrust Twist Turbine is directed to this end. As its name indicates, the device consists of a turbine whose motive power is provided by the ebb and flow of the tides, which take place with religious and relentless regularity twice in every twenty five hours, in each direction. It comprises:-

1) A light rod, spindle or shaft 1 of circular section.

The anterior surface 3 is quadrilateral and follows exactly the line of the upper and lower edges. The posterior surface 4 is streamlined, forming an arc of 1/6th of a circle from the outer edge to the opposite side of the spindle 1 with which it merges-Figures 1 and 1A

2) Between the upper and lower edges it is of a graduated convexity, being flat at the outer edge and reaching its greatest convexity at the point of contact with the surface of the spingle 1.-Figure 1.

3) The blades 2 are vertically spaced from each other up the spindle 1 with each blade 2 being 10 degrees further round the spindle and the distance of its own depth be

3. A turbine substantially as hereinbefore described with reference to the accompanying drawings. (These drawings being already filed at the Patent Office).

3) The blades 2 are vertically spaced from each other up the spindle 1 with each blade 2 being 10 degrees further round the spindle 1 from its neighbour, and the distance of its own depth below it so that the maximum thrust of the tide is exerted up on each blade 2 in turn.-Figures 2 and 3. Thus the blades 2 form a spiral around the spindle 1, comparable with the setting of bristles on a carpet-sweeper-Figures 4 and 5.

5) The dry end incorporates the rotors 5 of the turbine.

But the theory and principle of swinging the spindle at slack water does.