Pumps, Exhausters; Blowers, Meters, and other like Rotary Apparatus.
Year: 1885

page_text: Pumps, Exhausters; Blowers, Meters, and other like Rotary
Apparatus.
I, CEMER THOMAS COLEBROOK, of 15, Union Square, Islington, in the County
of Middlesex, Engineer, do hereby declare the nature of this Invention, to be as
follows:-
This Invention relates to certain improvements in or applicable to that class of
rotary engines or motors, pumps, exhausters, blowers, meters, and other like rotary
apparatus, in which there is mounted within and excentrically or otherwise in
relation to an outer cylinder or casing formed or provided with inlet and outlet
passages, and with end covers, a cylindrical rotary drum or centre-piece accurately
fitting (with facility of turning) against a segment of the inner surface or periphery
of the cylinder, and also between such end covers, and keyed or fixed upon or
securely fitted on or to an axle or shaft passing through one or both of such end
covers, and formed in its periphery with a series of longitudinal recesses or grooves
in which loosely fitting cylindrical rollers or equivalent devices of a solid or hollow
formation are placed.
The principle of action sought to be attained in this class of rotary apparatus is
that when the drum is rotated the said rollers shall roll freely around in their
respective grooves in such a manner as to remain at all parts of their revolution
round the centre of the said casing or for such part thereof as they are required
to act, in contact with the inner surface or periphery thereof, so as to act as true
pistons at all times and parts of their said revolution or for such part thereof as
they are required to act, in effecting a tight joint both between their peripheries
and the driving edges of their respective grooves, and between their peripheries
and the inner periphery of the said containing casing.
Advantageous means of attaining this principle of action are described in the
Specification of Letters Patent No 1694 bearing date the 18th day of January,
1884, and granted to me, and in the Specification of my Application for Letters
Patent No 4143, bearing date the 1st day of April, 1885, in both which arrange-
ments the rollers are severally independent from each other and the improved
means of actuating them consist principally in novel and peculiar formations of
the said recesses or grooves for the purpose of rendering them effective under the

page_text: joint influences of centrifugal force and of gravity and of the pressure of the
motive agent behind and impelling the rollers, in causing the latter to act as they
are required to act in fulfilling the said intended purposes of their application.
The present improvements are applicable to both such arrangements and have
been designed with the especial objects of rendering such apparatus as the Invention
refers to capable of being worked with equal advantage in any position, and with
much less noise in the different positions in which it may be worked, and of
providing means by which the rollers which are going out of action and are being
gradually and by the converging periphery of the casing positively driven into
their respective grooves towards the centre of the drum and finally flush with the
coincident surfaces of the drum and of the said segment of the cylinder or casing,
will be instrumental and rendered effective in imparting corresponding positive
motion to the rollers coming into operation gradually rolling them out of their
respective grooves and away from the centre of the drum and against the internal
surface of the casing, in lieu of their being wholly dependent on the said operative
forces herein before referred to..
To this end the Invention consists essentially in inserting in or through the said
centre piece or drum one or a series of sliding pieces, preferably arranging it or
them between opposite rollers, and so that the roller going out of operation and
being as aforesaid positively driven into its said groove shall by bearing against
its end of the said sliding piece or pieces be instrumental and effective in imparting
or directing the reverse or outward motion of the opposite roller coming into
operation and against which the other end of the said sliding piece or pieces is
caused to bear, and this facility permits of the motor or other apparatus being
worked in any position without the great disadvantages as regards noise and waste
of energy which existing apparatus (other than of the improved constructions
hereinbefore referred to) causes when worked in other than the particular position
most suitable to them.
The above referred to sliding pieces may be made in a great variety of suitable
forms, round, square or otherwise, and either solid or tubular, and may be applied
in various suitable ways to attain their above referred to purpose of utility, and
in any number as required or most suitable, and they may be separate from or
connected to one another or together in suitable series. .
2
4007

page_text: Apparatus.
I, CEMER THOMAS COLEBROOK, of 15, Union Square, Islington, in the County
of Middlesex, Engineer, 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 :-
The invention herein described, is illustrated on the accompanying drawings as
applied to a rotary engine, of which Figures, 1, and, 2, respectively represent
transverse and longitudinal sections, the rollers being removed in the latter."
This invention relates to certain improvements in or applicable to that class of
rotary engines or motors, pumps, exhausters, blowers, meters, and other like rotary
apparatus, in which there is mounted within and excentrically or otherwise in
relation to an outer cylinder or casing, 1. formed or provided with inlet and outlet
passages, 2. 3. and with end covers, 4; a cylindrical rotary drum or centre piece, 5.
accurately fitting (with facility of turning) against a segment, 6. of the inner
surface or periphery of the casing, 1. and also between the end covers, 4. and keyed
or fixed upon or securely fitted on or to an axle or shaft, 7. passing through one or
both of the end covers, and formed in its periphery with a series of longitudinal
recesses or grooves, 8. in which loosely fitting cylindrical rollers or equivalent
devices, 9. of a solid or hollow formation are placed.
The principle of action sought to be attained in this class of rotary apparatus
is that when the drum is rotated the said rollers shall roll freely around in their
respective grooves in such a manner as to remain at all parts of their revolution
round the centre of the said casing or for such part thereof as they are required
to act, in contact with the inner surface or periphery thereof, so as to act as true
pistons at all times and parts of their said revolution or for such part thereof as
they are required to act in effecting a tight joint both between their peripheries
and the driving edges of their respective grooves, and between their peripheries
and the inner periphery of the said containing casing.
Advantageous means of attaining this principle of action are described in the
Specifications of former Letters Patent granted to me; to wit No. 1694, of 1884,
dated the 18th day of January, 1884, and No. 4143 of 1885, dated the 1st day of
April, 1885. In such arrangements the rollers are severally independent from each
other, and the improved means of actuating them consist principally in novel and
peculiar formations of the said recesses or grooves for the purpose of rendering
them effective under the joint influences of centrifugal force and of gravity and of
the pressure of the motive agent behind and impelling the rollers, in causing the
latter to act as they are required to act in fulfilling the said intended purposes of
their application.
The present improvements are applicable to both such arrangements, and have
been designed with the especial objects of rendering such apparatus as the Inven-
tion refers to capable of being worked with equal advantage in any position, and
with much less noise in the different positions in which it may be worked, and of

page_text: providing means by which the rollers,-which are going out of action and are
being gradually and by the converging periphery of the casing positively driven
into their respective grooves towards the centre of the drum and finally flush with
the coincident surfaces of the drum and of the said segment of the cylinder or
casing, will be instrumental and rendered effective in imparting corresponding
positive motion to the rollers coming into operation gradually rolling them out of
their respective grooves and away from the centre of the drum and against the
internal surface of the casing in lieu of their being wholly dependent on the said
operative forces herein before referred to.
To this end, the Invention consists essentially in inserting in or through the
said centre piece or drum, 5. one or a series of sliding pieces, 10. preferably
arranging it or them between opposite rollers, and so that the roller or rollers 9ª,
going out of operation and being as aforesaid positively driven into its or their
said groove or grooves shall by bearing against its or their end or ends of the said
sliding piece or pieces, 10. be instrumental and effective in imparting or directing
the reverse or outward motion of the opposite roller or rollers, 9b, coming into
operation, and against which the other end or ends of the said sliding piece or
pieces, 10, is caused to bear, and this facility permits of the motor or other
apparatus being worked in any position without the great disadvantages as regards
noise and waste of energy which existing apparatus (other than of the improved
constructions hereinbefore referred to) causes when worked in other than the
particular positions respectively most suitable to them.
The above referred to sliding pieces may be made in a great variety of suitable
forms, round, square or otherwise, and either solid or hollow, and may be applied
in various suitable ways to attain their above referred to purpose of utility, and
in any number as required or most suitable, and they may be separate from or
connected to one another or together in suitable series.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare what
I claim is:
In rotary apparatus of the class herein before indicated; the application and use
of one or a series of sliding pieces operated and operating substantially in the
manner hereinbefore described, for the purpose specified.
Th
T1000
DAY, DAVIES, & HUNT,
Agents for the Applicant.