Improvements in Rotary Pumps, Blowers, and Engines, also applicable for Measuring Fluids.
Year: 1893

page_text: Date of Application, 25th Aug., 1893
Complete Specification Left, 25th May, 1894-Accepted, 30th June, 1894
PROVISIONAL SPECIFICATION.
Improvements in Rotary Pumps, Blowers, and Engines, also
applicable for Measuring Fluids.
I, HENRY TIPPING of 38 South Street, Greenwich, in the County of Kent,
M.I.M.E. do hereby declare the nature of this invention to be as follows:-
The object of the invention is to provide more efficient rotary pumps for drawing
and forcing liquids and gases, and engines actuated by liquids or gases and also
apparatus applicable for use in measuring water or other fluids.
For this purpose I employ one or more cylinders, each fitted with a piston, which
will, when in operation, revolve smoothly against or in close proximity to the ends
and bore of the cylinder.
The piston is connected to a central shaft through which power is transmitted to,
or from, the piston as required.
One or more cavities or spaces are formed in the chamber between its upper
surface and the circumference of the piston, which spaces in the rotation of the
piston form chambers into which liquid or gas is received, and from which the same
is discharged as the piston revolves.
In order to separate the inlet of liquid or gas from the outlet, I provide one or
more dividing parts or abutments, by means of a hinged flap or flaps, the hinged or
pivoted end of which is carried by the cylinder, and the other end bears on the
revolving piston, the pivot or hinge of the flap admits of its adjustment to the
inequalities of contour of the piston.
In order to prevent unnecessary wear and tear of the flaps and revolving piston
when working under high pressures, I counterbalance, or partially counterbalance
the pressure on the flap or flaps in any convenient manner.
To adapt the invention to the measuring of fluids only such adaptations as will be
readily understood will be requisite.
Springs, guides or counterweights may be applied to the dividing parts or
abutments.
The 5th Jon S A1002
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Rotary Pumps, Blowers, and Engines, also
applicable for Measuring Fluids.
I HENRY TIPPING of 38 South Street, Greenwich in the County of Kent,
M.I.M.E. 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 :-
The object of the invention is to provide more efficient rotary pumps for drawing
and forcing liquids and gases, and engines actuated by liquids or gases and also
apparatus applicable for use in measuring water or other fluids.
For this purpose I employ one or more cylinders, each fitted with a piston, which
will, when in operation, revolve smoothly against or in close proximity to the ends
and bore of the cylinder.

page_text: The piston is connected to a central shaft through which power is transmitted to
or from the piston as required.
One or more cavities or spaces are formed in the cylinder between its inner
surface and the circumference of the piston which spaces in the rotation of the
piston form chambers into which liquid or gas is received and from which the same
is discharged as the piston revolves.
In order to separate the inlet of liquid or gas from the outlet, I provide one or
more dividing parts or abutments, by means of a hinged flap or flaps the hinged or
pivoted end of which is carried by the cylinder, and the other end bears on the
revolving piston the pivot or hinge of the flap admits of its adjustment to the
inequalities of contour of the piston.
In order to prevent unnecessary wear and tear of the flaps and revolving piston
when working under high pressures, I counterbalance, or partially counterbalance
the pressure on the flap or flaps in any convenient manner.
To adapt the invention to the measuring of fluids only such adaptations as will
be readily understood will be requisite.
Springs, guides or counterweights may be applied to the dividing parts.or
abutments.
DESCRIPTION OF THE DRAWINGS.
Figs. 1 and 3 represent sectional views (taken Fig. 1 on the line 1-1 of
Fig. 2 and Fig. 3 on the line 2-2 of Fig. 2) and Fig. 4 is an end view.
Fig. 2 is an elevation and Fig. 5 is a plan view of the arrangement of two
pumps on one axis. Figs. 6, 7, 8 and 9 shew details when used as a pump for
drawing and delivering liquids or as a blower, a is the inlet, the outlet, c the
piston, e indicates a space formed in the cylinder f as the piston revolves on its
axis 9, d is a hinged flap or abutment having an arm i to which is secured the
lever j.
A roller k is fitted to the lever which is operated by the cam m, to
prevent the flap d from being lifted off the piston c when running at a high
speed, a roller d' is fitted into the end of the flap d which bears on the piston c
in order to reduce friction when forcing to a considerable height or against
great pressure the weight of liquid acting on the flap would also tend to prevent
the flap lifting off the face of the piston c the ends of the piston c and the flap d
fit so as to work smoothly against the cylinder covers n n (see Fig. 9).
In Figs. 2 and 5 two pumps work on one axis g, and the Haps or abutments
of each cylinder are coupled by the connecting rods r which are attached to the
ends of the levers j. By this arrangement any pressure acting on one flap is
counterbalanced by the pressure acting on the other flap, and each flap is so
guided by the rotary motion of the piston of the other as to prevent either flap
from lifting off its piston. When this arrangement is adopted the roller d', in
the end of the lever d, is allowed sufficient play to admit of its being caused
to roll on the piston c by means of the pressure acting through the passages d³
upon the roller d'.
In some instances I use a piston t (see Fig. 1) which works in a cylinder u
shewn in dotted lines, the piston t is connected to the flap d by the rod x and
the pressure acting on the piston t counteracts or partially counteracts the
pressure on the flap d.
When the apparatus is used as a pump or blower it revolves in the direction
indicated by the arrows Figs. 1 and 8, and when used as an oil or gas engine
or for measuring fluids the piston revolves in the opposite direction see arrow
Fig. 10.
A coupling wis secured to the axis g when driving directly by an electric or
other motor but it is obvious that a pulley to be driven by a belt or other
gearing, may be used instead.
The operation of the apparatus is as follows when used as a pump or blower,
the liquid or air is sucked through the pipe a into the spaces e of the chamber

page_text: or cylinder by the rotary motion of the piston c and is discharged through the
outlet b.
When used as an oil or gas engine, the vapour or gas is admitted to the
chamber y, and acts on the piston when in a position such as shewn in Fig. 10
the flap being extended. When thus used the pressure acting on the flap assists
the rotary motion.
Referring to this Fig. 10 y is the ignition chamber and y¹ the exhaust passage.
When used for measuring fluids the pressure tends to keep the flap on the
face of the piston.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. In a rotary pump, blower, engine or meter the construction and arrangement
or combination of parts as and for the purposes set forth.
2. In a rotary engine to be operated by the ignition of successive charges of
gas, or vapour, the construction and arrangement or combination of a rotating
piston c in a chamber f and co-operating with a hinged abutment d, an ignition
chamber and suitable inlet and outlet passages as and for the purpose set forth
with reference to Fig. 10.
3. In rotary pumps, blowers, or like engines the combination, or arrangement
with rotating pistons, piston chambers and coöperating parts of hinged flaps or
abutment pieces d each provided with a contact roller, or rollers d' having fluid
or spring pressure acting thereon through passages das and for the purpose
set forth.
Dated the 21th Jo.. of M. 1004
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.