A Motor for Utilizing the Rise and Fall of the Tides.
Year: 1897

page_text: We, STANLEY ANDREW CROFT and JOHN EDWARD CROFT, both of 16 Irwell Grove,
Eccles, near Manchester, in the County of Lancaster, Engineers, do hereby declare the
nature of this Invention to be as follows:-
Our invention relates to a motor designed to utilize the rise and fall of the tides as
a source of motive power.
Our motor consists of an undershot water wheel fixed on a shaft supported and free
to rotate in suitable bearings on a floating stage pontoon barge or the like.
This wheel instead of being provided with the ordinary cans or buckets is fitted with
hinged or movable partitions doors or valves arranged to retain the water in either
direction that is to say, whether the tide is flowing or ebbing.
The shaft of the wheel is geared by wheels or other means to pumping engines or
to a dynamo for charging an accumulator or any other machine or object to which
the motive power derived from the rotation of the water wheel is conveyed.
Dated this 18th day of January 1897.
H. B. BARLOW & GILLETT,
Agents for Applicants.
A Motor for Utilizing the Rise and Fall of the Tides.
We, STANLEY ANDREW CROFT and JOHN EDWARD CROFT both of 16, Irwell Grove,
Eccles, near Manchester, in the County of Lancaster, Engineers, 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 :-
Our Invention relates to a motor designed to utilize the rise and fall of the tides
as a source of motive power, and in order that our Invention may be fully
understood and readily carried into effect. we will describe the same with reference to
the accompanying Sheet of Drawings in which
Figure 1 is a side sectional elevation and Fig. 2 an end elevation of our tidal
motor and Figs. 3 and 4 are detail views on a larger scale illustrating the mode of
mounting the hinged doors or valves.
The motor consists of an undershot water wheel A fixed on a shaft B which is
supported at each end and is free to rotate in suitable bearings formed in
pedestals C. The pedestals C are secured each upon one or two pontoons D which
are connected together by transverse beams or girders E; but instead of the pontoons
we might employ barges or any other convenient and suitable form of floating stage
which would be moored in the tideway at any point desired. The wheel A instead
LD 017

page_text: of being provided with the ordinary cans or buckets is fitted with hinged or movable
partitions doors or valves F arranged to retain the water in either direction that is to
say whether the tide is flowing or ebbing. In the Drawings the valves F are shown
mounted by means of strap hinges G upon axles H which are supported by the frame
of the wheel A and the movement of each door is limited in either direction by means
of the stops I.
On the shaft B of the wheel is fixed a bevel wheel J which is geared with a bevel
wheel K fixed on a vertical shaft L geared or connected to pumping engines or to a
dynamo for charging an accumulator or any other machine or object to which the motive
power derived from the rotation of the waterwheel A is conveyed; but in place of the
bevel gearing we may employ pulleys and belts or ropes or any other convenient and
suitable means for transmitting the power.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what we
claim is :-
A tidal motor consisting of an undershot waterwheel mounted on a floating stage
or the like and fitted with movable doors or valves arranged to retain the water in
either direction whether the tide is flowing or ebbing substantially as and for the
purposes herein described and as illustrated by the accompanying Drawing.
Dated this oro dav QI
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Patel LIIS OLD Ɑ9V OLCIATOber LXU
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.