A NEW OR IMPROVED HYDRAULIC AUTO- MOTOR MOTIVE POWER ENGINE
Year: 1872

page_text: PROVISIONAL SPECIFICATION left by William Edward Gedge at the
Office of the Commissioners of Patents, with his Petition, on the
3rd October 1872.-A communication from abroad by Victor Michel
Loir, of No. 64, Faubourg St. Martin, Paris, France.
I, WILLIAM EDWARD GEDGE, of No. 11, Wellington Street, Strand,
in the County of Middlesex, Patent Agent, do hereby declare the
nature of the said Invention for "A NEW OR IMPROVED HYDRAULIC AUTO-
MOTOR MOTIVE POWER ENGINE," a communication to me from abroad by
Victor Michel Loir, of No. 64, Faubourg St. Martin, Paris, France, to
be as follows :—
The theory of hydraulic motors is based upon the principle of
taking the water from the fall, and employing its weight and its speed
in combination to produce the useful effect.
In the improved motive power engine, the subject of this Invention,
there is used as vis viva only the specific gravity of the water, a weight
which may naturally increase with the body of water accumulated.
Thus, taking for example a reservoir holding 10 cubit metres, the
pressure on the bottom of this reservoir will be 1000 kilogrammes.

page_text: be obtained; but what is sought is the possibility of utilising this
power of gravity without expending it instantly, or at least only
taking but a very small part of it. It will herein-after be seen that
this Invention claims to reinstate in the general reservoir the water
which shall already have produced its useful effect, causing it to serve
again.
I will now proceed to describe the motive power engine the subject
of this Invention, reference being had to the accompanying Sheet of
Drawing. Given a reservoir placed at the upper part of the apparatus
and filled with water, it is made to communicate with a receiver A,
of cylindrical or other form, in which the same pressure establishes
itself. This receiver ends on one of its sides in form of a cone B,
and communicates with a pump barrel in which works a piston D.
Another piston C fitting in the receiver is capable of receiving an
alternate go-and-come movement, and it is upon this piston that will
be exerted the entire effort of the pressure of the water held in the
reservoir and in the recipient A; but it is so adjusted that the water
cannot escape and pass into the cone B. The cone B is also filled with
a liquid which under the pressure of the piston C communicates .to
the piston D. the compression produced on the first piston.
Assuming the piston O to be in the position which it occupies at
Figure 1, if the communication between the reservoir and the receiver
A be opened, the weight of the water will bear upon this piston and
compel it to recoil. This recoil movement will be communicated to
the piston D by the water contained in the cone which will thus be
pressed against it. If at this moment the communication with the
reservoir be closed, and that with apparatus Figure 2 be opened, the same
effect will be produced in contrary direction to the first, driving back the
piston D and causing the piston O to retire, driving out by an opening
provided for that purpose the quantity of water which had entered it,
the piston C having only to overcome the weight of the water contained
in the receiver A, its communication with the reservoir being in-
terrupted. By placing between the rod uniting the pistons D, D",
any kind of transmission gearing, connecting rod, crank, or rack and
pinion, this alternate horizontal motion may be instantaneously changed.
into a continuous circular movement.

page_text: It has been above stated that the water which has already produced
its useful effect might be again employed. It has been seen that this
quantity of water is very small inasmuch as it is equal to the capacity
of the pump barrel which is very restricted, it will therefore be possible
to raise this small quantity of water by the action of the motor itself.
This Invention may be summed up as consisting of a hydraulic
motive power engine with differential pistons receiving the force of
the gravitation of a quantity of water accumulated in a reservoir of
any kind.