IMPROVEMENTS IN MEANS OR APPARATUS FOR RAISING AND FORCING FLUIDS
Year: 1861

page_text: LETTERS PATENT to Thomas Francis Doyle, of 3, Guilford Place, Russell
Square, in the County of Middlesex, Engineer, for the Invention of
"IMPROVEMENTS IN MEANS OR APPARATUS FOR RAISING AND FORCING FLUIDS."
Sealed the 12th November 1861, and dated the 22nd August 1861.
PROVISIONAL SPECIFICATION left by the said Thomas Francis Doyle
at the Office of the Commissioners of Patents, with his Petition, on the
22nd August 1861.
I, THOMAS FRANCIS DOYLE, of 3, Guilford Place, Russell Square, in the
5 County of Middlesex, Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MEANS OR APPARATUS FOR RAISING AND FORCING
FLUIDS," to be as follows:-
Within a segmental chamber I apply a pair of surfaces acting together, and
radiating from a cominon_centre whilst they are capable of motion thercon, so
that alternately in the motions given to such surfaces by an eccentric, or by
other suitable means, space may be formed to receive fluid into such chamber,
first on one side and then on the other, and then to force such fluid therefrom
through suitable valves, and by suitable passages. The moving surfaces are
made true to the chamber in which they move by packing, or otherwise, in
5 order to their being fluid-tight.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Francis Doyle in the Great Seal Patent Office on
the 21st February 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
O FRANCIS DOYLE, of 3, Guilford Place, Russell Square, in the County of
Middlesex, Engineer, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of August, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Thomas Francis Doyle, Her special licence that I, the said Thomas
Francis Doyle, my executors, administrators, and assigns, or such others
as I, the said Thomas Francis Doyle, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN MEANS OR APPARATUS FOR RAISING AND FORCING FLUIDS,"
upon the condition (amongst others) that I, the said Thomas Francis Doyle, iny
executors or administrators, by an instrument in writing under my, or their,
or one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Thomas Francis Doyle, do hereby
declare the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
Within a segmental chamber I apply a pair of surfaces acting together, and
radiating from a common centre, whilst they are capable of motion thereon, so
that alternately in the motions given to such surfaces by an eccentric, or by
other suitable means, space may be formed to receive fluids into such
chamber, first on one side and then on the other, and then to force such
fluid therefrom through suitable valves, and by suitable passages. The moving
surfaces are made true to the chamber in which they move by packing, or
otherwise, in order to their being fluid-tight.
But that the nature of the improvements and the means which I adopt in
carrying the same into effect may be fully understood, I will proceed to
describe the Drawing annexed.
DESCRIPTION OF THE DRAWING.

page_text: divided into two compartments, A, A', by the two surfaces
and 62, the faces
of which radiate from a common centre b, which is formed as an axis to turn
in bearings carried by the segmental case a. This axis b, and the edges
around the surfaces 1, 2, are packed with suitable packing, so that they may
be fluid-tight. The surfaces 6, 6, are connected so as to move together, as
shown, and are formed to receive and embrace the eccentric c, so as to be
moved by that eccentric in its rotation. 6, 6, are small rollers carried by the
surfaces, b, for the eccentric c to act upon, and thereby lessen friction. The
eccentric c is affixed to the axis d, upon which is also affixed the pulley e
which has motion given to it to give rotary motion to the eccentric c by means
of the endless strap or band f, which is driven by passing over the pulley g
affixed to the axis h, to which motion is given by a steam engine or other
suitable power.
It will be seen that by the motion thus given to the surfaces
1, 2, alternately in opposite directions, spaces will be formed to receive water
or other fluid through valves j, and then force it out through valves k up
tubes i, i.
The Drawing by means of the arrow shows the fluid on one side to be
flowing in by the valvej to the side A', whilst on the other side the valvej is
closed, and the water or other fluid which had been caused to flow in on that
side is being forced through the valve k up the tube i, and so on alternately.
Figure 2 shows a slight modification by the eccentric c being placed in a
horizontal direction on the axis d, which is driven by the pinion d¹ fixed
thereon, being driven by the teeth of the wheel 1. In other respects the same
letters are used to indicate parts in this Figure corresponding with those used
in the other.
Having thus described the nature of my said Invention, and the means I
find to answer in carrying the same into effect, I would have it understood
that I do not confine myself to the precise details, so long as the peculiar
character of the improvements be retained, substantially as explained.
In witness whereof, I, the said Thomas Francis Doyle, have hereunto
set my hand and seal, this Fifteenth day of February, in the year of
our Lord One thousand eight hundred and sixty-two.
THOMAS FRANCIS DOYLE. (L.S.)