AN IMPROVEMENT OR IMPROVEMENTS IN SUPPRESSING THE SMOKE AND INCREASING THE DRAUGHT OF ATS OF LOOM AND SO THAT BATENDO"TEAM INE
Year: 1854

page_text: LETTERS PATENT to John Inshaw, of Birmingham, in the County of
Warwick, Engineer, and James Parker, of Birmingham aforesaid,
Locomotive Superintendent, for the Invention of "AN IMPROVEMENT OR
IMPROVEMENTS IN SUPPRESSING THE SMOKE AND INCREASING THE DRAUGHT OF
ATS OF LOOM AND SO THAT BATENDO"
PROVISIONAL SPECIFICATION left by the said John Inshaw and James
Parker at the Office of the Commissioners of Patents, with their Peti-
tion, on the 1st April 1854.
We, JOHN INSHAW, of Birmingham, in the County of Warwick, Engineer,
and JAMES PARKER, of Birmingham aforesaid, Locomotive Superintendent, do
hereby declare the nature of the said Invention for "AN IMPROVEMENT OR
IMPROVEMENTS IN SUPPRESSING THE SMOKE AND INCREASING THE DRAUGHT OF THE
FURNACES OF LOCOMOTIVE AND OTHER STEAM ENGINE BOILERS " to be as follows:-
Our said Invention consists in introducing into the chimneys of locomotive
and marine boiler furnaces a pipe or pipes connected with the said boilers, so
that when the locomotive or marine engine is brought to rest, and the waste
steam from the engine is no longer thrown into the chimney, steam may be
conducted from the boiler into the chimney or smoke box, so as to maintain
more or less effectually the draught in the said chimney. The use of our
Invention suppresses more or less effectually the smoke which is evolved from

page_text: locomotive and marine engines, the furnaces of which are fed with coal, when
the said locomotive and marine engines are brought to rest. In getting up the
steam of a locomotive, the waste steam from another locomotive may be intro-
duced into the smoke box or chimney to increase the draught.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Inshaw and James Parker in the Great Seal Patent
Office on the 23rd September 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
INSHAW, of Birmingham, in the County of Warwick, Engineer, and JAMES
PARKER, of Birmingham aforesaid, Locomotive Superintendant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
.Patent, bearing date the First day of April, in the year of our Lord One
thousand eight hundred and fifty-four, in the seventeenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the
said John Inshaw and James Parker, Her special licence that we, the said
John Inshaw and James Parker, our executors, administrators, and assigns,
or such others as we, the said John Inshaw and James Parker, our execu-
tors, 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 "AN IMPROVEMENT OR IMPROVEMENTS IN
SUPPRESSING THE SMOKE AND INCREASING THE DRAUGHT OF THE FURNACES OF Loco-
MOTIVE AND OTHER STEAM ENGINE BOILERS," upon the condition (amongst others)
that we, the said John Inshaw and James Parker, by an instrument in writing
under our hands and seals, or under the hand and seal of one of us, 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said James Parker, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
Our said Invention consists in introducing into the chimnies or smoke boxes
of locomotive and marine and other steam boiler furnaces, or into the chimnies
of the same, a pipe or pipes connected with the said boilers, through which said

page_text: pipe or pipes a jet or jets of steam are introduced into the said smoke boxes or
chimnies. The said jet or jets of steam maintain or increase the draught of
the said furnaces, and thereby suppress the smoke, which would otherwise arise
when coal is burned in the said furnaces. The said jet or jets of steam may
be regulated or cut off by a stop-cock placed in the pipe conveying the said
steam from the boilers. When the waste steam from a locomotive, or marine,
or other engine at work is thrown into the smoke box or chimney of its boiler
furnace, the draught produced by the said waste steam is usually sufficient to
prevent the formation of smoke, in which case the jet of steam direct from the
boiler is not required; but when the said locomotive, marine, or other engine
is brought to rest, the draught of the furnace is diminished, in consequence of
the absence of the said waste steam, and smoke is produced from the said
furnace; but by introducing a jet of steam direct from the boiler, the draught
of the said furnace is renewed and the smoke suppressed. The accompanying
Drawing represents in side elevation a locomotive engine constructed according
to our Invention. a is a pipe connected at one end with the anterior end of
the boiler by means of a stop-cock b; the said pipe a enters the smoke box d
at c. By opening and closing the stop-cock b, a jet of steam from the boiler
can be directed along the pipe a into the smoke box d or funnel e.
The stop-
cock 6 is situated near the waste steam cock f, by which the waste steam from
the boiler is admitted into the tank; the stop-cock b, however, may be placed
in any other convenient position. Instead of increasing the draught of a
locomotive engine by means of a jet of steam from its own boiler, we sometimes
effect the same by means of a jet of steam from the boiler of another locomotive
engine. In getting up the steam of a locomotive engine much time is lost in
consequence of the imperfect draught of a locomotive furnace when the said
locomotive engine is at rest; in such case the waste steam from another loco-
motive may be introduced into the smoke box or funnel of the locomotive
engine in which the steam has to be got up.
We do not think it necessary to
describe or represent any particular method of thus getting up the steam in one
locomotive by the use of the waste steam of another, as any method of con-
necting the smoke box or funnel of one engine with the waste steam pipe of
another may be resorted to, and the precise details of the said method of con-
necting the said two locomotive engines depends upon the particular construction
of the said engines. An ordinary workman is competent to effect the connection
of the said locomotive engines. Where the waste steam thrown into the smoke
box or chimney of a locomotive, marine, or other engine, by the working of
the said engine, is not sufficient to suppress the smoke from the furnace of the
same, steam direct from the boiler may be introduced into the smoke box or

page_text: funnel in addition to the said waste steam. Although the principal object of
our Invention is the suppression of smoke when locomotive and marine engines
burning coal are at rest, yet our Invention is applicable to marine and loco-
motive engines burning coke; our said Invention in such cases being applicable
to the increasing of the draught produced by waste steam, and the getting up
of steam in locomotive engines at rest, as herein described. Our Invention is
also applicable to the steam boiler furnaces of stationary engines, both for the
purpose of suppressing the smoke and increasing the draught of the said
furnaces.
Having now described the nature of our said Invention, and the manner of
carrying the same into effect, we wish it to be understood that we do not limit
ourselves to the precise methods of carrying the same into effect, herein
described, as the same may be varied without departing from the nature of our
said Invention; but we claim as our Invention,―
Firstly, the introduction of steam into the smoke boxes or funnels of loco-
motive engines by means of a pipe connected with the boiler of the same, the
said pipe being external to the said boiler and furnished with a stop-cock, as
herein described and illustrated by the accompanying Drawing.
Secondly, the introduction of steam direct from the boiler into the smoke
boxes, funnels, or chimnies of marine and stationary engines, as herein-before
described.
Thirdly, the application of steam from one locomotive at rest to the getting
up of the steam of another locomotive at rest.
In witness whereof, I, the said James Parker, have hereunto set my
hand and seal, this Twentieth day of September, in the year of our
Lord One thousand eight hundred and fifty-four.
Witness,
WILLIAM PLENTY.
JAMES PARKER. (L.S.)