Improvements in Rotary Pumps and Engines.
Year: 1886

page_text: Date of Application, 28th Sept., 1886.
Complete Left, 28th June, 1887.
Complete Accepted, 5th Aug., 1887.
PROVISIONAL SPECIFICATION.
Improvements in Rotary Pumps and Engines.
I JOHN HENRY STOREY, of 37, Farringdon Street, in the City of London, and the
County of Middlesex, Engineer, do hereby declare the nature of this invention to be
as follows:-
My invention relates to improvements in that class of Rotary pumps and engines in
which a cylindrical rotary drum is fitted with sliding blades, discs, pistons, or rollers,
and caused to revolve, within a suitable cylindrical casing; on or around an axis,
which is eccentric to the axis of the said cylindrical casing. And my invention has
for its object the production of more perfect geometrical motion of the said sliding
blades, discs, pistons, or rollers as the case may be; and, consequently, constant and
uniform contact of the circumferential edges, or peripherical surfaces of the said sliding
blades, discs, pistons, or rollers, with the corresponding interior surface of the said
cylindrical casing. And likewise further to provide for accurate radial and
longitudinal adjustment of the said sliding blades, discs, pistons, or rollers; whereby
any wear which may take place either in the peripherical surfaces of the said sliding
blades, discs, pistons, or rollers; or in the corresponding interior surface of the said
cylindrical casing, or in both, may be readily compensated while the said cylindrical
drum, and sliding blades, discs, pistons, or rollers, are in motion.
In carrying out my said invention I construct the said cylindrical casing with the
usual necessary inlet and outlet passages. And I further provide it with suitable
heads, covers, or ends, which may be adjustable, longitudinally, or endwise; for the
purpose of compensating, or taking up the end wear of the said blades, discs, pistons,
or rollers; and the said rotary cylindrical drum; which is hereinafter more fully
described. In one, or both of the said heads, or covers, I provide a suitable bearing
and stuffing box, or bearing only; the axis of which is arranged parallel to, but
eccentric with, the axis, or centre, of the said cylindrical casing. In this said bearing,
or bearings, is fitted, and works, the axle or driving shaft of the said rotary
cylindrical drum.
Coincident with the centre, or axis, of the said cylindrical casing, and in either, or
both, of the said heads, or covers, I provide or fit a suitably tapered, or conical,
mandrel, shaft, or pin, which, can be adjusted longitudinally, or in the direction of its

page_text: axis; and which may be fixed in position by either a screw and lock-nut, or other
convenient and suitable means; or it may be free to revolve on its axis ; in addition
to being adjustable longitudinally.
And I make the said rotary cylindrical drum, with a hollow cylindrical, or other
suitably formed, interior, into which enters or extends the said suitably tapered, or
conical mandrel, shaft, or pin; and around which the interior wall of the said
cylindrical drum is free to revolve. The periphery of the said drum is provided with
a series of suitably formed longitudinal grooves or slots (or both); the latter extend
into the interior of the said rotary cylindrical drum; and converge to, or radiate
from, a common centre, which centre coincides with the centre, or axis, of rotation of
the said cylindrical drum. Within the said grooves or slots, or both, are fitted the
said sliding blades, discs, pistons, or rollers; which are free to slide or roll, or slide
and roll, or slide only, as the case may be, therein. And likewise to revolve (with the
said cylindrical drum) freely around the said suitably tapered, or conical mandrel,
shaft, or pin; and having their respective inner or opposite circumferential, or
peripherical, surfaces in constant and uniform rolling contact with the said tapered, or
conical mandrel, shaft, or pin.
The said sliding blades, discs, pistons, or rollers, are made taper or conical, on their
respective peripherical surfaces to correspond with the said tapered, or conical
mandrel, shaft, or pin; and they are otherwise so formed and fitted into their
respective grooves, or slots; that lines radiating from the axis, or centre, of the said
cylindrical casing, pass through, or intersect the points of contact of the outer and
inner circumferential or peripherical surfaces of each of the said sliding blades, discs,
pistons, or rollers, respectively; and the corresponding surfaces of the said cylindrical
casing, and the said tapered, or conical mandrel, shaft, or pin, respectively. And I
further provide the said grooves, or slots, of the said rotary drum; in which work the
said sliding blades, discs, pistons, or rollers, with adjustable slips, or pieces of suitable
form, which are adjustable laterally by means of wedge-shaped rods, or tapered pins,
or bolts; or by means of rectangular parallel strips, or pieces, and screws; or other
suitable means for the purpose of keeping them in position against the said sliding
blades, discs, rollers, or pistons; and for compensating any lateral wear which may
take place in the said grooves, or slots; or the said sliding blades, discs, pistons, or
rollers.
001 1000

page_text: COMPLETE SPECIFICATION.
Improvements in Rotary Pumps and Engines.
I JOHN HENRY STOREY of 37, Farringdon Street, in the City of London, in the
County of Middlesex, Engineer 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 :-
My invention relates to improvements in that class of Rotary pumps and engines
in which a cylindrical or conical rotary drum is fitted with sliding blades, discs,
pistons, or rollers, and caused to revolve within a suitable cylindrical or conical casing
on or around an axis, which is eccentric to the axis of the said cylindrical or conical
casing. And my invention has for its object the production of more perfect
geometrical motion of the said sliding blades, discs, pistons, or rollers, as the case
may be; and consequently constant and uniform contact of the circumferential edges,
or peripherical surfaces of the said sliding blades, discs, pistons, or rollers, with the
corresponding interior surface of the said cylindrical or conical casing. And likewise
further to provide for accurate radial and longitudinal adjustment of the said sliding
blades, discs, pistons, or rollers; whereby any wear which may take place either in
the peripherical surfaces of the said sliding blades, discs, pistons or rollers, or in the
corresponding interior surface of the said cylindrical or conical casing, or in both,
may be readily compensated while the said drum and sliding blades, discs, pistons, or
rollers are in inotion.
In carrying out my said invention I construct the said cylindrical or conical
casing, with the usual necessary inlet and outlet passages. And I further provide it
with suitable heads, covers, or ends, which may be adjustable longitudinally, or
endwise, for the purpose of compensating or taking up the end wear of the said
blades, discs, pistons, or rollers, and the said rotary cylindrical or conical drum, which
is hereinafter more fully described. In one or both of the said heads, or covers, I
provide a suitable bearing and stuffing box, or bearing only, the axis of which is
arranged parallel to, but eccentric with the axis, or centre of the said cylindrical or
conical casing. In this said bearing, or bearings, is fitted and works the axle or
driving shaft of the said rotary cylindrical or conical drum.
Coincident with the centre or axis of the said cylindrical, or conical, casing, and
in either or both of the said heads or covers I provide or fit a suitably formed
mandrel, shaft, or pin (preferably tapered) which can be adjusted longitudinally or
in the direction of its axis, and which may be fixed in position by either a screw
and lock-nut, or other convenient & suitable means. Or, preferably, it may be
free to revolve on its axis, in addition to being adjustable longitudinally.
And I make the said rotary cylindrical or conical drum with a suitably formed
interior into which extends the said suitably formed mandrel, shaft, or pin, and around
which the interior wall of the said cylindrical or conical drum is free to revolve. The
said drum is provided with a series of suitably formed longitudinal slots extending
radially through the exterior, or peripherical surface of the said rotary cylindrical, or

page_text: conical, drum; and which converge to, or radiate from a common centre which centre
coincides with the centre or axis of rotation of the said cylindrical or conical drum.
Within these said slots are fitted the said sliding blades, discs, pistons, or rollers, which
are free to slide or roll, or slide and roll, or slide only, as the case may be, therein.
And also to revolve (with the said cylindrical or conical drum) freely around the said
suitably formed mandrel, shaft or pin; and having their respective inner or opposite
circumferential, or peripherical surfaces in constant and uniform contact with the
said suitably formed mandrel, shaft, or pin.
.
The said sliding blades, discs, pistons, or rollers, are made either parallel, or conical
on their respective peripherical surfaces to correspond with the said suitably formed
mandrel, shaft, or pin. And they are otherwise so formed & fitted into their
respective slots, that lines radiating from the axis, or centre of the said cylindrical or
conical casing, pass through or intersect the points of contact of the outer and inner
circumferential or peripherical surfaces of each of the said sliding blades, discs,
pistons, or rollers, respectively and the corresponding surfaces of the said cylindrical
or conical casing, and the said suitably formed mandrel, shaft, or pin, respectively.
And I further provide the said grooves, or slots, of the said rotary drum, in which
work the said sliding blades, discs, pistons, or rollers, with adjustable slips or pieces of
suitable form, which are adjustable laterally by means of wedge-shaped rods, or
tapered pins or bolts, or by means of rectangular parallel strips, or pieces, and screws,
or other suitable means for the purpose of keeping them in position against the said
sliding blades, discs, pistons, or rollers; and for compensating any lateral wear which
may take place in the said grooves or slots, or the said sliding blades, discs, pistons,
or rollers, or in both.
In order that my said Invention may be clearly described and understood, reference
is hereby made to the accompanying drawings; which for clearness and simplicity
represent one form of a Rotary Pump to which my said invention is applied, and to
which the foregoing description is applicable.
On the accompanying drawings similar letters of reference represent corresponding
parts.
Fig. 1 is a longitudinal sectional elevation of the said Rotary Pump, showing the
arrangement of the rotary drum, and the said sliding blades, discs, pistons, or rollers.
And also the suitably formed mandrel, shaft, or pin, and the means for adjusting the
same; and the means for compensating or taking-up the wear of the ends, & the
wear of the circumferential or peripherical surfaces of the said sliding blades, discs,
pistons, or rollers, and the interior surface of the said cylindrical, or conical casing.
Fig. 2 is a transverse section of the same pump, also showing the arrangement of
the rotary drum, the said sliding blades, discs, pistons, or rollers, and the said suitably
formed mandrel, shaft or pin relatively to each other. And likewise the means for
adjusting the above named suitably formed slips or pieces for compensating the lateral
wear of the said grooves or slots which are formed in the rotary drum, and the said
sliding blades, discs, or rollers, which work therein.
A is the suitably formed casing which may have either a cylindrical or conical
interior. B is the suction passage, and C is the delivery passage. D D₁ are flanges
formed on the said casing A, to which the said suitably formed heads, ends, or
covers E E are secured. F F are suitable bearings formed in the heads, or
covers E E¹, in which works the axle or driving shaft G G¹ of the said rotary
cylindrical or conical drum H.
The bearing F in the end or cover E of the casing A is also provided with a
suitable stuffing box and gland II' in which works the axle or driving shaft G.
J JJ are the said sliding blades, discs, or rollers, (any suitable number may be
used) which are free to slide in their respective grooves, or slots, formed in the
said rotary drum H, and are free to revolve therewith. K K are the suitably
formed strips which are adjustable laterally in the manner hereinbefore described
for the purpose of compensating or taking-up the wear of the said grooves or slots in
the said rotary drum H, or the wear in their respective sliding blades, discs, pistons
or rollers J JJ. L is an adjustable strip which may (if so desired) be fitted in the

page_text: ends of each of the said sliding blades, discs, pistons, or rollers, J J' J³, and is pressed
against the ends, or covers, E E', by springs in the manner shown (or by other
convenient & suitable means) for the purpose of adjusting any unequal wear which
may take place in the said ends or covers. M is the suitably formed mandrel shaft,
or pin, which is preferably tapered (but in some cases may be paralell) and which is
adjustable longitudinally by means of the set-screw & lock-nut N, in the manner
shown for the purpose of setting-up the said sliding blades, discs, or rollers J J J³ to
adjust the wear of the peripherical or circumferential edges of the said sliding blades;
and the interior cylindrical or conical surface of the said suitably formed casing A.
And it is also preferably made free to revolve on its axis. Or it may be rigidly
attached to the end or cover E¹ of the casing A, and may or may not be adjustable
longitudinally. P is a plug or piston which may be fitted within the end of the said
suitably formed mandrel, shaft, or pin, M and pressed against the interior of the
rotary drum H, by means of a suitable spring as shown, for the purpose of keeping
the mandrel M against the set-screw N, whereby a nice adjustment of the said sliding
blades, discs, or rollers, may be effected, and the mandrel M be prevented from
seizing or wedging fast the said sliding blades J J₁ J. Or the same end may be
attained by connecting the set-screw N, by any suitable means to the mandrel M, so
that its adjustment either to the right or left may be effected by the set-screw.
Although for convenience the description & drawings refer chiefly to a pump, it
is obvious that without departing from the nature of my invention it is equally
applicable in part, or wholly, either to rotary Steam, Gas, or air engines and pumps,
for the purpose or purposes herein set forth.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. The construction and use of Rotary Pumps and engines constructed, arranged
and operating substantially as herein-before described and shown on the accompanying
drawings.
2. The construction and use of the sliding blades, discs, pistons or rollers J J1 J2,
with the adjustable strips L, and corresponding spring or springs, and the adjustable
pieces or strips K K' with their means of adjustment as fitted in their respective
grooves or slots, in combination with the revolving drum H, substantially as and
for the purposes hereinbefore described and shown on the accompanying drawings.
3. The construction and use of a paralell, or conical, or other suitably formed
mandrel, shaft, or pin, M, which may be either fixed or free to revolve around
its axis and may, or may not, be adjustable longitudinally, substantially as and for
the purposes herein before described & shown on the drawings.
4. The set-screw & lock-nut N, and the plug or piston P, together with its
suitable spring in combination with the suitably formed mandrel M, substantially as
and for the purposes hereinbefore described and shown on the drawings.
Date DOLL T1007