OR IMPROVED APPARATUS FOR INJECTING, EXHAUSTING, AND FORCING FLUIDS, WHICH APPARATUS IS ALSO APPLICABLE FOR OTHER PURPOSES
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Joseph Cougnet and Auguste Pierre
Potel at the Office of the Commissioners of Patents on the 20th September
1877.
JOSEPH COUGNET and AUGUSTE PIERRE POTEL, both of Brussels, in the Kingdom
of Belgium, Civil Engineers. "NEW OR IMPROVED APPARATUS FOR INJECTING,
EXHAUSTING, AND FORCING FLUIDS, WHICH APPARATUS IS ALSO APPLICABLE FOR
OTHER PURPOSES."
Our Invention relates to apparatus for injecting, exhausting, and forcing fluids,
the said apparatus being applicable as an injector, a pump, an elevator, and for
other purposes.
Our improved apparatus consists of a pipe or tube, the hole or opening through
which is of square or rectangular section at each end, and the sides taper or narrow
inwards from the ends, or near the ends of the said pipe or tube, so that at a part
of the length of the said tube the hole in section forms a parallelogram, the length
and breadth of which are smaller than the corresponding sides of the square or
rectangle aforesaid; thus longitudinal sections of the said pipe or tube taken at
right angles to each other would show the said hole to be somewhat similar in form
to two inverted V's joined together at or near their smaller ends, or two V shaped
chambers herein-after called the upper and lower tube chambers, opening into each
other at their smaller ends. To one end of the said pipe or tube is affixed a funnel
or tubular mouth-piece of rectangular section, which projects into the said pipe or
tube by a tapering nose. The inner part of the said funnel or mouth-piece is
divided into two branches by a central guide plate so disposed and shaped that the
fluid under pressure entering the said mouth-piece will be divided into two currents,
which, after leaving the nose, will unite in that part of the pipe or tube which is of
smallest section. In section the said funnel or mouth-piece somewhat resembles the
letter W.
In the side of the upper chamber of the pipe or tube is an aperture fitted with
a suitable pipe for the inlet to the apparatus of the fluid or substance to be operated
on, and in the side of the lower chamber of the said pipe or tube is a hole or aper-
ture provided with a suitable cock or tap through which the apparatus may be
emptied when required.

page_text: The action of the apparatus is as follows:-The apparatus having been set up in
position, the steam or fluid under pressure used as a motive power is admitted
through the funnel or mouth-piece herein-before described, and passes into the body
of the pipe or tube in two jets, which, uniting within the said pipe or tube, create
a vacuum which draws in from the branch pipe herein-before described the fluid or
other matter to be operated on, and the said fluid or other matter passing through
the apparatus is projected or forced out in a continuous jet by the force of impul-
sion within the apparatus.
When the said apparatus is to be used for blowing purposes or forcing air or
gas for promoting the combustion of fuel, drying, ventilating, or other like pur-
poses, we mount two, or more than two, of the rectangular funnels or tubular
mouth-pieces herein-before described, one above the other, or one before the other,
the branches of one of the said mouth-pieces opening into the branches of the mouth-
piece immediately below or before it, which latter branches are made rather larger
than the former ones. The said funnels or mouth-pieces may be mounted on a suit-
able frame, or may be carried by vertical or other guide rods provided with means
for adjusting the position of each of the said funnels or mouth-pieces, as required.
In some cases we construct the apparatus of circular shape, having the form of
two inverted cones joinned together, the mouth-piece consisting of an annular pipe
mounted between the centre and sides of the apparatus. The motive fluid passes
in through the said annular pipe, and draws in the fluid or matter to be operated
on through the central part of the apparatus and through the space between the
said annular pipe and the sides of the apparatus.