IMPROVEMENTS IN THE CONCHERARIAN D وو PROVISIONAL SPECIFICATION
Year: 1861

page_text: LETTERS PATENT to John Taylor and Meshach Brittan Cooper, of
Liverpool, in the County of Lancaster, Engineers, for the Invention
of "IMPROVEMENTS IN THE CONCHERARIAN
D
وو
PROVISIONAL SPECIFICATION left by the said John Taylor and Meshach
Brittan Cooper at the Office of the Commissioners of Patents, with
their Petition, on the 2nd January 1861.
We, JOHN TAYLOR and MESHACH BRITTAN COOPER, of Liverpool, in the
County of Lancaster, Engineers, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF ROTARY ENGINES," to be
as follows:-
This Invention relates to the mechanism of that rotary engine for which
Letters Patent were issued to John Lane and John Taylor, dated the 2nd
June 1855, No. 1259, the mode of operation and main features being
retained.
These improvements consist, firstly, in constructing the "tongue piece "
with one or both of the sides concave or convex.
Secondly, in forming the metallic surfacos which abut or act against the
said "tongue piece," with concave or convex surfaces.

page_text: Thirdly, in using spiral or other springs to keep the metallic packing close
to the ends of the piston or the cylinder ends or covers.
And, fourthly, in having the induction ports in the cylinder ends or covers
so that the piston may act as the "cut off," and allow steam or other vapour
to be used expansively.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Taylor and Meshach Brittan Cooper in the Great Seal
Patent Office on the 2nd July 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JOHN
TAYLOR and MESHACH BRITTAN COOPER, of Liverpool, in the County of 1
Lancaster, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of January, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said John Taylor and Meshach Brittan Cooper, Her special licence
that we, the said John Taylor and Meshach Brittan Cooper, our executors,
administrators, and assigns, or such others as we, the said John Taylor and
Meshach Brittan Cooper, our 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
usc, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN THE CONSTRUCTION OF ROTARY ENGINES," upon the condition (amongst
others) that we, the said John Taylor and Meshach Brittan Cooper, our
executors or administrators, by an instrument in writing under our, 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 we, the said John Taylor and Meshach Brittan
Cooper, do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement (that is to say):-
This Invention relates to the mechanism of that rotary engine for which

page_text: Royal Letters Patent were issued to John Lane and John Taylor, as of date
the 2nd June 1855, No. 1259; the mode of operation and main features being
retained.
The improvements consist, firstly, in constructing the "tongue piece" with
one or both of the sides concave or convex.
Secondly, in forming the metallic surfaces which abut or act against the
said "tongue piece," with concave or convex surfaces.
Thirdly, in using spiral or other springs to keep the metallic packing close
to the ends of the piston or the cylinder ends or covers.
And, fourthly, in having the induction ports in the cylinder ends or covers so
that the piston may act as the "cut off," and allow steam or other vapour to
be used expansively.
To facilitate the description of these our improvements, we have hereunto
attached a Sheet of Drawings representing various views of a motive-power
engine of the form and construction we prefer; almost all the parts we have
improved on or added being illustrated in position.
"
Fig. 1 represents a front or longitudinal elevation; Fig. 2, an end
elevation; Fig. 3, a vertical section of Fig. 1; Fig. 4, a vertical section of
Fig. 2; Fig. 5, a transverse section, shewing one form and mode of attaching
a metallic "cod or "tongue piece packing; Fig. 6, a longitudinal section,
shewing means whereby the metallic discs or packing plates are kept close up
to the ends of the piston and the ends of the cylinder; Fig. 7, a transverse
section, shewing our improved induction ports to allow the steam to be used
expansively.
Before making particular reference to the different parts of our Invention
recited in the Provisional Specification and herein embodied, we will allude to
several of the essential and leading parts of the engine shewn, and use the
same letters to denote the same parts in all the views. a represents the
framing, on which two plummer blocks b are fitted to receive the journals of
the rotating cylinder c; d, a heavy driving pulley, acting also as a fly wheel;
e, the shaft or axle, with passages f in the same, either of which can be used
as induction or eduction ports when in communication with the stationary
pipes g, passing through the glands h; i, the piston fastened to the said shaft e,
and shewn in all the views at half-stroke, or receiving and exhausting steam;
a slot or opening formed in the periphery of the said piston to receive the
tongue piece" and packings.
j,
"
The first part of our improvements are shewn in Figs. 3, 4, 5, and 7, and
marked k, This "tongue piece" is made of metal, and extends the full length
of the cylinder, into which it is inserted and fastened by bolts or otherwise.

page_text: The form shewn is concave on one side only, as this shape will be most
generally used; if, however, an engine was intended for reversing, then the
.said "tongue piece" could be made concave on both sides, or it might be
convex on one side and concave on the other, or convex on both sides.
One modification of the second part of our improvements is illustrated in
Fig. 5, and marked m. The part of this metallic packing or "cod," which
acts against the "tongue piece," has its surfaces shaped to fit close to the same,
and be steam-tight when a slight pressure is applied, and for this purpose it is
hinged or otherwise fastened or attached to the piston, and acted on by a
spring. When reversing engines are used it might be advisable to use two,
one on each side of the "tongue piece."
Another modification under this head is shewn in Figs. 4 and Fig. 7, and
marked n. This consists of a C-shaped metallic spring, the ends of which are
enlarged and shaped on their bearing surfaces to correspond with the "tongue
piece," similar to the "cods" just described. It is fitted into the slot or
opening of the piston i, and fastened by a bolt o, or in any other way found
convenient.
The third part of our improvements are illustrated in Fig. 6. p represents
the metallic packing discs to abut against the ends of the piston; 9, spiral
springs fitted in recesses in the cylinder covers, and exerting their power on
the said metallic discs; ", the metallic packing dises to abut against the
circular rings s let into the ends of the cylinder; at the back of the rings
are india-rubber rings or other springs t to keep the surfaces steam-tight.
Fig. 3, shews another modification of packing the cylinder ends. 2, the
metallic discs; s', an india-rubber sheet on the back of the said metallic discs
capable of being "tightened up" by the screws u, shewn on Fig. 1; v,
steadying pins.
Under this head it will be seen that we can use metallic discs and springs
against both the ends of the piston and the ends of the cylinder. In many cases,
however, the arrangement shewn in Fig. 3 would be sufficient, viz., discs at :
the ends of the piston, and dises and springs at the ends of the cylinder.
The fourth part of our improvements are illustrated in Fig. 7. Here the
steam is admitted through the hollow shaft and the piston, but as the outlet
from the said piston is at the ends of the same at w, it can only escape into
the cylinder by a passage or steam way x formed in the ends or covers of the
said cylinder. By this arrangement steam or other expansive vapour or gas
can be used expansively without a separate expansion valve, and the "cut off”
regulated as desired. The eduction port is similarly formed to the arrange-
ments in the other modification herein shewn.

page_text: Although we have described the particulars of our said Invention as applied
to or made part of a motive-power engine, still we would have it distinctly
understood that we do not confine ourselves to the manufacture, use, and sale
of the same in such engines only, as they may be applied to or made part of
the same engines when used as a fan, air exhauster, lift and force pump, water
meter, and engine, and for various other purposes; but we claim as our
Invention the improvements herein described and illustrated in the accom-
panying Sheet of Drawings.
.
In witness whereof, we, the said John Taylor and Meshach Brittan
Cooper, have hereunto set our hands and seals, this Twenty-fourth
day of June, in the year of our Lord One thousand eight hundred and
sixty-one
Witness,
JOHN T. KING.
JOHN TAYLOR.
(L.S.)
MESHACH BRITTAN COOPER. (L.S.)