Improvements in Water Wheels for Raising Water.
Year: 1896

page_text: Date of Application, 9th June. 1896-Accepted, 5th Sept., 1896
COMPLETE SPECIFICATION.
Improvements in Water Wheels for Raising Water.
We, ANDRÉ MARC PASCAULT and JACQUES FRANÇOIS MARIE HENRY DE
COURSAC, both residing at Vivonne, Department of Vienne, in the Republic of
France, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement :-
This invention has for its object a water wheel having siphonic buckets of any
capacity suitable for irrigating fields, watering gardens and for other like
purposes.
This wheel which may be taken to pieces with great ease, delivers a relatively
large quantity of water, which is not the case with the bucket wheels now
in use.
We fix to the wings or paddles of the wheel, specially constructed siphonic
buckets which become filled with water by immerson in the river and which retain
their entire charge until the moment at which it should be discharged.
Hitherto in apparatus of this kind a portion of the water has been lost during its
elevation, the delivery being consequently unsatisfactory.
We also form in order to utilize as completely as possible the force of the
current which serves to move the wheel, the wings or paddles of solid or pierced
undulating or corrugated sheet iron or also wire gauze which by increasing the
surface of contact with the current allows the whole force to be utilized and
prevents slipping of the water upon the paddles.
These are the two characteristic points of our invention.
It comprises also certain accessory arrangements which will be hereinafter
described with reference to the drawings.
In these drawings:-
Figure 1 is a side elevation of the discharge side of the wheel.
Figure 2 is a similar view of the other side.
Figure 3 shows the framing, of a paddle or wing with a siphonic bucket.
Figure 4 shows a paddle formed of wooden boards.
Figure 5 is a side view of the same.
Figure 6 shows a paddle of corrugated sheet metal.
Figure 7 shows the axle of the wheel.
Figure 8 is a side elevation of a disc which carries the wings.
Figure 9 shows a siphon to a larger scale.
Figure 10 shows a maudrel or narrowing tube for the siphon.
A is the axle of the wheel.
:
It is supported in bearings in which it revolves. These bearings are not shown
in the drawings. They may be either fixed or adjustable for regulating the height
of the axis with respect to the river level.
The axle A carries as seen in Figure 7, two discs a a provided with grooves a¹
in which the sides of the framing B of the paddles are lodged and which are
bolted to them. Suitably arranged cross bars 6 and the hoops 6 surrounding the
wheel ensure rigidity.
C Figure 4, are the wooden boards which form the paddle. In Figure 6 these
boards are replaced by corrugated sheet metal D. E is the large horizontal
pipe of the siphon arranged along the wing to which it is attached in any suitable
manner.
7

page_text: The pipe E which is slightly inclined, is open at one end to receive the bend E
of the siphonic bucket. The other end of the pipe E is closed, and to this
end the double U pipe F is soldered. This pipe F is attached in any suitable
manner to the frame B of the wing. fis one of its bends.
..
G is a tube or mandrel which may in certain cases be introduced into the pipe E
to diminish its capacity.
The arrow 1. indicates the flow of the current, the arrow 2. the direction of the
rotation of the wheel, the arrows 3 the path of the air in the siphon.
The line XX shows the level of the water in the siphon, the line Y Y the
extreme point to which the water can rise in the siphon. Z shows the position of
the bucket at its entrance into the water, Z' its position at its exit and Z the point
of discharge of the water.
The wheel works in the following manner :-When it is placed in the water it is
put in motion by it. The siphonic bucket in the position Z. goes into the water,
the portion E of the bucket is first immersed and the water flows into it,
expelling the air which passes out by the tube F following the path of the
arrow 3.
The water fills the bucket as fast as the air passes out and by the theory of
communicating vessels, the river being one of these vessels and the bucket the
other, the level of the water in the siphon is always the same as that of the
river.
In Figures 1 and 2, the position the fluid occupies in the different positions
of the bucket during its passage in the water between the points Z Z can be
traced.
It may here be remarked, the end of the branch F is always out of water
whatever may be the position of the bucket.
When the syphon emerges from the water say at the position Z, Figure 2,
equilibrium is established between the two legs of the syphon the level of the
water being the line X. X; but the bend f being always higher than the orifice of
the portion E of the bucket the siphon remains full and the water is only discharged
when the bucket occupies the position Z2.
The water is discharged by the orifice at which the water enters. The discharge
takes place suddenly and with great force...
As is seen the construction of this hydraulic wheel is most simple; it can easily
be put up and taken down and therefore may easily be carried from one place to
another, and be protected from the weather when no longer in use.
Of course any suitable materials may be employed for the construction of
the wheel and we do not restrict ourselves to any particular method of putting
together the several parts.
These wheels may be of any suitable size and the number of paddles increased
or otherwise.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
A water wheel capable of being taken to pieces composed of a certain number of
wings or paddles, formed of wooden boards or corrugated sheet metal pierced or
otherwise, each wing being provided with a siphonic bucket substantially as
described and shown in the accompanying drawings.
Dated this 9th day of June 1896.