CERTAIN IMPROVEMENTS IN APPLYING STEAM TO THE COMMON AND OTHER ENGINES
Year: 1834

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ALFRED NOBLE, of Cross Street, Cherry Garden Street, Bermondsey, in the
County of Surrey, Engineer, send greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fourth day of December, in the fifth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
William Alfred Noble, His especial licence, full power, sole privilege and
authority, that I, the said William Alfred Noble, my exors, adñiors, and
assigns, or such others as I, the said William Alfred Noble, my exors, adñiors,
or assigns, should at any time agree with, and no others, from time to time
and at all times during the term of years therein expressed, should and law-
fully might make, use, exercise, and vend, within England, Wales, and the
Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN
APPLYING STEAM TO THE COMMON AND OTHER ENGINES;" in which said Letters
Patent is contained a proviso that I, the said William Alfred Noble, shall
cause a particular description of the nature of my said Invention, and in what
manner the same is to be performed, to be inrolled in His said Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said in part recited Letters Patent, as in and by the
same, reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Alfred Noble, do hereby declare that the nature of my said Invention,

page_text: and the manner in which the same is to be performed, is particularly describe
and ascertained in and by the following description thereof, reference being had
to the Drawing hereunto annexed, and to the figures and letters marke
thereon, that is to say:-
My improved steam engine consists in having two pistons in onc cylinder
by which means the engine is enabled to make double the number of strokes it
would do if it had but one piston, consequently double the velocity (or power)
is obtained without the aid of multiplying wheels.
The annexed Drawing is a representation of a perpendicular section of the
cylinders for a pair of thirty-horse marine engines. a, the cylinder; b, b, the
pistons; c, the hollow piston rod, with a stuffing box at the end, which admits
of the piston rod to the lower piston passing through; d, the solid piston
rod to lower piston; e, the steam port which admits the steam to act on the
upper side of the upper piston b; f, the steam port which admits the steam to
act on the under side of the under piston; g, the steam port which admits the
steam in the centre of the cylinder to enable it to act on the two pistons;
h, the cistern, which contains the air pump and the condenser; i, i, i, i, the
connecting rods to the crank k, by which the power of the two engines are
united; k, the four-throw crank, shewn by the dotted lines running under the
base of the cylinders and condensers; m, represents the steam posts above
specified, as seen from the other side of the cylinders, and the steam
is let on and off in the usual way; 1, 1, the connecting rods from the
crank of the engine to the crank of the paddle wheels. The steam being
admitted through the steam ports e and f, forces the pistons b, b, together;
the steam is then turned off into the condenser in the usual way, which is
unnecessary to describe; at the same time the steam is admitted by the steam
port g between the pistons, the one is then forced up and the other down-the
above action is then repeated-which, being connected to the cranks by
means of the connecting rods i, i, i, i, the machine or paddle wheel is set in
motion.
I would further observe, that I do not confine myself to the operation of two
pistons in one cylinder, as more might be employed; but two appear to be
sufficient. The same principle of two or more pistons in one cylinder is applicable
to engines of high-pressure principle.
In witness whereof, I, the said William Alfred Noble, have hereunto
set my hand and seal, this Third day of June, in the year of our
Lord One thousand eight hundred and thirty-five.
W AD (L.S.) NOBLE.

page_text: AND BE IT REMEMBERED, that on the Third day of June, in the
year of our Lord 1835, the aforesaid William Alfred Noble came before
our said Lord the King in His Chancery, and acknowledged the Specifica-
tion aforesaid, and all and every thing therein contained and specified, in
form above written. And also the Specification aforesaid was stamped
according to the tenor of the Statute made for that purpose.

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ALFRED NOBLE, of Cross Street, Cherry Garden Street, Bermondsey, in the
County of Surrey, Engineer, send greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fourth day of December, in the fifth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
William Alfred Noble, His especial licence, full power, sole privilege and
authority, that I, the said William Alfred Noble, my exors, adñiors, and
assigns, or such others as I, the said William Alfred Noble, my exors, adñiors,
or assigns, should at any time agree with, and no others, from time to time
and at all times during the term of years therein expressed, should and law-
fully might make, use, exercise, and vend, within England, Wales, and the
Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN
APPLYING STEAM TO THE COMMON AND OTHER ENGINES;" in which said Letters
Patent is contained a proviso that I, the said William Alfred Noble, shall
cause a particular description of the nature of my said Invention, and in what
manner the same is to be performed, to be inrolled in His said Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said in part recited Letters Patent, as in and by the
same, reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Alfred Noble, do hereby declare that the nature of my said Invention,

page_text: and the manner in which the same is to be performed, is particularly described
and ascertained in and by the following description thereof, reference being had
to the Drawing hereunto annexed, and to the figures and letters marked
thereon, that is to say:-
My improved steam engine consists in having two pistons in one cylinder,
by which means the engine is enabled to make double the number of strokes it
would do if it had but one piston, consequently double the velocity (or power)
is obtained without the aid of multiplying wheels.
The annexed Drawing is a representation of a perpendicular section of the
cylinders for a pair of thirty-horse marine engines. a, the cylinder; b, b, the
pistons; c, the hollow piston rod, with a stuffing box at the end, which admits
of the piston rod to the lower piston passing through; d, the solid piston
rod to lower piston; e, the steam port which admits the steam to act on the
upper side of the upper piston b; f, the steam port which admits the steam to
act on the under side of the under piston; g, the steam port which admits the
steam in the centre of the cylinder to enable it to act on the two pistons;
h, the cistern, which contains the air pump and the condenser; i, i, i, i, the
connecting rods to the crank k, by which the power of the two engines are
united; k, the four-throw crank, shewn by the dotted lines running under the
base of the cylinders and condensers; m, represents the steam posts above
specified, as seen from the other side of the cylinders, and the steam
is let on and off in the usual way; 1, 1, the connecting rods from the
crank of the engine to the crank of the paddle wheels. The steam being
admitted through the steam ports e and f, forces the pistons b, b, together;
the steam is then turned off into the condenser in the usual way, which is
unnecessary to describe; at the same time the steam is admitted by the steam
port g between the pistons, the one is then forced up and the other down-the
above action is then repeated-which, being connected to the cranks by
means of the connecting rods i, i, i, i, the machine or paddle wheel is set in
motion.
I would further observe, that I do not confine myself to the operation of two
pistons in one cylinder, as more might be employed; but two appear to be
sufficient. The same principle of two or more pistons in one cylinder is applicable
to engines of high-pressure principle.
In witness whereof, I, the said William Alfred Noble, have hereunto
set my hand and seal, this Third day of June, in the year of our
Lord One thousand eight hundred and thirty-five.
WM AD (L.S.) NOBLE.

page_text: AND BE IT REMEMBERED, that on the Third day of June, in the
year of our Lord 1835, the aforesaid William Alfred Noble came before
our said Lord the King in His Chancery, and acknowledged the Specifica-
tion aforesaid, and all and every thing therein contained and specified, in
form above written. And also the Specification aforesaid was stamped
according to the tenor of the Statute made for that purpose.