Year: 1872

page_text: I JOSEPH RUSTON of the Sheaf Iron Works in the City of Lincoln seek leave to
amend the specification of Letters Patent, No. 3304 of 1872, as shown in red
ink in the copy of the original specification hereunto annexed :—
My reasons for making this Amendment are as follows:-
Because the arrangement of apparatus described and claimed in the parts of the
specification which are struck out is not of such importance as to induce me to
retain or strive to maintain my claim to it and because I desire to reduce the
expence of maintaining my claim to the invention claimed in the remainder of the
specification.

page_text: LETTERS PATENT to Joseph Ruston, of the Sheaf Iron Works, in the City of
Lincoln, for the Invention of "IMPROVEMENTS IN PORTABLE AND OTHER.
STEAM ENGINES."
PROVISIONAL SPECIFICATION left by the said Joseph Ruston at the Office
of the Commissioners of Patents, with his Petition, on the 7th November
1872.
I JOSEPH RUSTON of the Sheaf Iron Works in the City of Lincoln do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN PORTABLE AND
OTHER STEAM ENGINES " to be as follows:
Heretofore in portable steam engines the bearings which receive the crank shaft
have been supported on brackets carried by the shell of the steam boiler and the
cylinder of the engine has likewise been carried by this shell-When rigid stays
have been placed between the cylinder and the crank shaft bearings the bearings
have in some cases been made capable of sliding to and fro upon the brackets to
allow of contraction and expansion of the boiler, or the bearings have been
supported upon plates fixed transversely across the top of the boiler and sufficiently
flexible to allow of the boiler contracting and expanding, or in other cases there
have been rigid stays with no compensation for contraction and expansion.
According to my Invention I carry the bearings of the crank shaft upon brackets
as heretofore and I place a tubular stay or stays by preference of wrought iron
between the bracket and the steam cylinder, or it might be between the bracket
and the shell of the boiler and into such tubular stay or stays I admit steam either
from the steam jacket of the cylinder or directly from the boiler. By this means
the tubular stay or stays may be kept approximately at the same temperature as
the shell of the boiler and will contract or expand at the same time with it and to
the same extent.
Other steam engines where the engine is mounted on the boiler may be
constructed in a similar manner :-
Other ways of applying heat to the tubular stay may also be adopted but
I prefer to use steam as above described.
The regulator valve for controlling the passage of steam from the boiler to the
valve chest and which as is usual is placed inside the boiler I arrange to close
against the end of the steam pipe leading to the valve chest of the steam engine
and I construct it to move to and from its seat in place of making it to slide upon
its seat as heretofore usual. The back of the valve is connected by a short link to
a crank pin on a spindle which is passed out through a stuffing box at the upper
part of the steam chest. Outside the boiler the spindle has a handle upon it by
which it can be turned in order to draw the valve away from its seat. The valve
is circular and is formed with wings to pass into the end of the steam pipe and
the valve face which closes against the end of this pipe is by preference made
convex,

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME I, JOSEPH RUSTON
of the Sheaf Iron Works in the City of Lincoln send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her Letters
Patent bearing date the Seventh day of November in the year of our Lord
One thousand eight hundred and seventy-two in the thirty-sixth year of Her
reign did for Herself Her heirs and successors give and grant unto me the said
Joseph Ruston Her special license that I the said Joseph Ruston my executors
administrators and assigns or such others as I the said Joseph Ruston my
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 use exercise and vend within the United
Kingdom of Great Britain and Ireland the Channel Islands and Isle of Man
an Invention for "IMPROVEMENTS IN PORTABLE AND OTHER STEAM ENGINES"
upon the condition (amongst others) that I the said Joseph Ruston my executors
or administrators by an instrument in writing under my 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 I the said Joseph Ruston do hereby declare the
nature of the said Invention and in what manner the saine is to be performed
to be particularly described and ascertained in and by the following statement
thereof that is to say
Heretofore in portable steam engines the bearings which receive the crank shaft
have been supported on brackets carried by the shell of the steam boiler and the
cylinder of the engine has likewise been carried by this shell. When rigid stays
have been placed between the cylinder and the crank shaft bearings the bearings
have in some cases been made capable of sliding to and fro upon the brackets to
allow of contraction and expansion of the boiler; or the bearings have been
supported upon plates fixed transversely across the top of the boiler and sufficiently
flexible to allow of the boiler contracting and expanding or in other cases there
have been rigid stays with no compensation for contraction and expansion.
According to my Invention I carry the bearings of the crank shaft upon brackets
as heretofore and I place a tubular stay or stays by preference of wrought iron
between the bracket and the steam cylinder or it might be between the bracket
and the shell of the boiler and into such tubular stay or stays I admit steam either
from the steam jacket of the cylinder or directly from the boiler. By this means
the tubular stay or stays may be kept approximately at the same temperature as
the shell of the boiler and will contract or expand at the same time with it and to
the same extent; other steam engines where the engine is mounted on the boiler
may be constructed in a similar manner; other ways of applying heat to the
tubular stay may also be adopted but I prefer to use steam as above described.

page_text: valve-chest and which as is usual is placed inside the boiler I arrange-to-elose
against-the-end-of--the-steam-pipe-leading-to-the-valve-chest-of-the steam-engine
and-construet-it-to-move-to-and-from-its-seat-in-place-of-making it-to-slide-upon-its
seat-as-heretofore-usual.-The-back-of the-valve-is-connected-by-a-short-link-to-a
erank-pin-on-a-spindle which is passed-out-through-a-stuffing box at the upper-part
of-the-steam-ehest. Outside the boiler-the-spindle-has-a-handle-upon-it-by which
it can be turned in order to draw the valve away from its sent. The valve is
eireular-and-is-formed with wings-to pass into the-end-of-the-steam pipe and the
valve-face-which-closes-against-the end-of-this-pipe-is-by-preference-made-convex.
In--order--that my said Invention may be--most fully understood--and readily
earried-into-effect-1-will-proceed-to-describe the Drawings hereunto-annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side view of a portion of a steam engine constructed according to
my Invention. a is the boiler b the cylinder and c the bracket for supporting the
crank shaft. Both the cylinder b and bracket c are bolted to the boiler a and they
are also connected by two hollow stays done on either side of the cylinder.
These stays which with the parts to which they are immediately attached are
shewn in section receive steam into them from the jacket space around the
cylinder. Thus the stays are kept always about at the temperature of the boiler
and the strain which otherwise would arise from the unequal expansion of the
boiler and the stays is avoided. The stays may be clothed with felt and covered
with a brass tube.
Figure 2-is-a vertical section and Figure-3-an-end-view-partly-in-section of-a
regulator-arranged-according to-my-Invention-to-control-the-passage-of--the-steam
from-the-boiler-to-the-valve-ehest-of-the-engine.
The Figures--which--remain--unnumbered-shew some of the parts separately
a--brass lining 61-which-forms-a-seating-for-the-regulator-valve-c-and-the-wings-cl
ar-as-is-the-shell-of-the-boiler.--b-is-the-steam-pipe-fixed-upon-it-it-has-at-its-mouth
of-the-valve-enter-within-it.-The-valve-c-is-connected-by-the-link-d-with-the-erank
pin-e-upon-the-short-arm-f-on-the-end-of the-spindle-g-:-h-is-a-bearing-fixed-to-the
shell-of the boiler to carry the spindle-g-and-a-stuffing-box-is-formed-in-it-at-h¹.
i-is-a-lever handle at the end of the spindle and--is-a-stop plate-to prevent the
movement-of-the-handle too far.--g-is-a-stop-pin-driven-into-a-hole-in-the-spindle-g
and-passing-through-slotted-boles-in-the-bearing-h-it-prevents-the-displacement-of
the-parts-when-the-handle-i-is-removed--l-is-the-ordinary-throttle-valve.
Having thus described the nature of my said Invention and the manner of
performing the same I would have it understood that I claim
st. The application substantially as described of stays arranged so that they
may be maintained at about the same temperature as the boiler to support the
bracket carrying the crank shaft.
end. The arrangement of apparatus-for-controlling-the-passage of steam-from
the-boiler
to-the-valve-chest-of-the-engine-substantially-as-described.
In witness whereof I the said Joseph Ruston have hereunto set my hand
and seal this First day of May in the year of our Lord One thousand
eight hundred and seventy-three

page_text: LETTERS PATENT to Joseph Ruston, of the Sheaf Iron Works, in the
City of Lincoln, for the Invention of "IMPROVEMENTS IN PORTABLE AND
OTHER STEAM ENGINES."
Sealed the 15th April 1873, and dated the 7th November 1872.
PROVISIONAL SPECIFICATION left by the said Joseph Ruston at the
Office of the Commissioners of Patents, with his Petition, on the
7th November 1872.
I, JOSEPH RUSTON, of the Sheaf Iron Works, in the City of Lincoln,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
PORTABLE AND OTHER STEAM ENGINES," to be as follows:
-
Heretofore in portable steam engines the bearings which receive the
crank shaft have been supported on brackets carried by the shell of the
steam boiler, and the cylinder of the engine has likewise been carried
by this shell. When rigid stays have been placed between the cylinder
and the crank shaft bearings, the bearings have in some cases been
made capable of sliding to and fro upon the brackets to allow of con-
traction and expansion of the boiler, or the bearings have been supported
upon plates fixed transversely across the top of the boiler, and sufficiently

page_text: flexible to allow of the boiler contracting and expanding, or in other
cases there have been rigid stays with no compensation for contraction
and expansion.
According to my Invention I carry the bearings of the crank shaft
upon brackets, as heretofore, and I place a tubular stay or stays by
preference of wrought iron between the bracket and the steam cylinder,
or it might be between the bracket and the shell of the boiler, and into
such tubular stay or stays I admit steam either from the steam jacket
of the cylinder or directly from the boiler. By this means the tubular
stay or stays may be kept approximately at the same temperature as the
shell of the boiler, and will contract or expand at the same time with it
and to the same extent.
Other steam engines where the engine is mounted on the boiler may
be constructed in a similar manner.
Other ways of applying heat to the tubular stay may also be adopted,
but I prefer to use steam as above described.
The regulator valve for controlling the passage of steam from the
boiler to the valve chest, and which as is usual is placed inside the
boiler I arrange to close against the end of the steam pipe leading
to the valve chest of the steam engine, and I construct it to move
to and from its seat in place of making it to slide upon its seat, as
heretofore usual. The back of the valve is connected by a short link
to a crank pin on a spindle which is passed out through a stuffing
box at the upper part of the steam chest. Outside the boiler the
spindle has a handle upon it by which it can be turned, in order to
draw the valve away from its seat. The valve is circular and is formed
with wings to pass into the end of the steam pipe, and the valve face
which closes against the end of this pipe is by preference made convex.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of November, in the
year of our Lord One thousand eight hundred and seventy-two, in
the thirty-sixth year of Her reign, did, for Herself, Her heirs and
isuccessors, give and grant unto me, the said Joseph Ruston, Her
special license that I, the said Joseph Ruston, my executors, adminis-
trators, and assigns, or such others as I, the said Joseph Ruston,
my 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,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN PORTABLE AND OTHER STEAM ENGINES," .upon the condition
(amongst others) that I, the said Joseph Ruston, my executors or adminis-
trators, by an instrument in writing under my, 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 I, the said Joseph Ruston, 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 thereof, that is to say :—
Heretofore in portable steam engines the bearings which receive the
crank shaft have been supported on brackets carried by the shell of the
steam boiler, and the cylinder of the engine has likewise been carried
by this shell. When rigid stays have been placed between the cylinder
and the crank shaft bearings the bearings have in some cases been made
capable of sliding to and fro upon the brackets to allow of contraction
and expansion of the boiler; or the bearings have been supported upon
plates fixed transversely across the top of the boiler, and sufficiently
flexible to allow of the boiler contracting and expanding; or in other
cases there have been rigid stays with no compensation for contraction
and expansion.
According to my Invention I carry the bearings of the crank shaft
unon brackets, as heretofore and I place a tubular stay or stays by

page_text: preference of wrought iron between the bracket and the steam cylinder;
or it might be between the bracket and the shell of the boiler, and into
such tubular stay or stays I admit steam either from the steam jacket
of the cylinder or directly from the boiler. By this means the tubular
stay or stays may be kept approximately at the same temperature as the
shell of the boiler, and will contract or expand at the same time with
it and to the same extent.
Other steam engines where the engine is mounted on the boiler may
be constructed in a similar manner.
Other ways of applying heat to the tubular stay may also be adopted,
but I prefer to use steam as above described.
The regulator valve for controlling the passage of steam from the
boiler to the valve chest, and which as is usual is placed inside the
boiler, I arrange to close against the end of the steam pipe leading
to the valve chest of the steam engine, and construct it to move
to and from its seat in place of making it to slide upon its seat, as
heretofore usual. The back of the valve is connected by a short link
to a crank pin on a spindle which is passed out through a stuffing box
at the upper part of the steam chest. Outside the boiler the spindle
has a handle upon it by which it can be turned, in order to draw the
valve away from its seat. The valve is circular and is formed with wings
to pass
into the end of the steam pipe, and the valve face which closes
against the end of this pipe is by preference made convex.

page_text: of the boiler and the stays is avoided. The stays may be clothed with
felt and covered with a brass tube.
Figure 2 is a vertical section, and Figure 3 an end view partly in
section of a regulator arranged according to my Invention to control
the passage of the steam from the boiler to the valve chest of the
engine.
The Figures which remain unnumbered shew some of the parts
separately; a, a, is the shell of the boiler; b is the steam pipe fixed
upon it; it has at its mouth a brass lining b¹ which forms a seating
for the regulator valve c, and the wings c¹ of the valve enter within it.
The valve c is connected by the link d with the crank pin e upon the
short arm on the end of the spindle g; h is a bearing fixed to the
shell of the boiler to carry the spindle g, and a stuffing box is formed
in it at h¹; i is a lever handle at the end of the spindle, and k is a
stop plate to prevent the movement of the handle too far; g¹ is a stop
pin driven into a hole in the spindle 7, and passing through slotted
holes in the bearing h, it prevents the displacement of the parts when
the handle i is removed; is the ordinary throttle valve.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that
I claim,-
1st. The application, substantially as described, of stays arranged so
that they may be maintained at about the same temperature as the boiler,
to support the bracket carrying the crank shaft.
2nd. The arrangement of apparatus for controlling the passage of
steam from the boiler to the valve chest of the engine, substantially
as described.
In witness whereof, I, the said Joseph Ruston, have hereunto set
my hand and seal, this First day of May, in the year of our Lord
JOSEPH RUSTON. (L.S.)