IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS EMPLOYED FOR WARMING BUILDINGS
Year: 1861

page_text: LETTERS PATENT to Samuel Thomas Crook, of Halifax, in the County of
York, Ironmonger and Boiler Manufacturer, for the Invention of
"IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS EMPLOYED FOR WARMING
BUILDINGS."
Sealed the 26th July 1861, and dated the 30th January 1861.
PROVISIONAL SPECIFICATION left by the said Samuel Thomas Crook
at the Office of the Commissioners of Patents, with his Petition, on the
30th January 1861.
I, SAMUEL THOMAS CROOK, of Halifax, in the County of York, Ironmonger
and Boiler Manufacturer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS EMPLOYED FOR WARMING
BUILDINGS," to be as follows:-
This Invention has for its object a more economical and effectual method
of constructing such boilers than that at present and hitherto in use.
Heretofore such boilers have been invariably constructed by securing the
various plates employed by means of angle iron and rivets, which is a tedious
and complicated process.

page_text: Now the first part of my Invention consists in dispensing with the angle
iron and rivets, and the process of rivetting hitherto employed, and in con-
necting the various plates (of which the boiler is constructed) together by
means of welding.
And the second part of the said Invention consists in constructing and
forming the boiler as follows:-I form two cylindrical water spaces, each
made of two cylinders (formed of plate iron bent into a cylinder and the edges
welded), connected together at top and bottom by welding thereto rings or
annular plates of iron. These two water spaces are of such dimensions that
the exterior circumference of the lower end of the upper cylinder shall fit into
the interior of the upper end of the lower cylinder, so that the upper cylinder
can enter the lower cylinder telescopically to any suitable distance, openings
being previously made in both, so as to establish a communication between
the two cylindrical water spaces, the joint being secured and caulked in a
suitable manner. The fire-box is in tho'interior of the lower cylindrical water
space, and fire tubes pass therefrom vertically through the upper cylindrical
water space to the smoke box above. The fire is fed from above through the
upper cylindrical water space in the usual manner, and the pipes for the
circulation of the water are connected to the upper and lower parts of the
boiler, as usual.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Thomas Crook in the Great Seal Patent Office on
the 30th July 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
THOMAS CROOK, of Halifax, in the County of York, Ironmonger and Boiler
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth 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
me, the said Samuel Thomas Crook, Her special licence that I, the said
Samuel Thomas Crook, my executors, administrators, and assigns, or such
others as I, the said Samuel Thomas Crook, 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

page_text: 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 THE CONSTRUCTION OF BOILERS EMPLOYED FOR WARMING
BUILDINGS," upon the condition (amongst others) that I, the said Samuel
Thomas Crook, 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 Samuel Thomas Crook, do hereby
declare the nature of my 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 bas for its object a more economical and effectual method of
constructing such boilers than that at present and hitherto in use.
Heretofore such boilers have been invariably constructed by securing the
various plates employed by means of angle iron and rivets, which is a tedious
and complicated process.
Now the first part of my Invention consists in dispensing with the angle
iron and revets, and the process of revetting hitherto employed, and in con-
necting the various plates (of which the boiler is constructed) together by
means of welding.
And the second part of the said Invention consists in constructing and
forming the boiler as follows:-I form two cylindrical water spaces, each
made of two cylinders (formed of plate iron bent into a cylinder, and the edges
welded,) connected together together at top and bottom by welding thereto rings
or annular plates of iron. These two water spaces are of such dimentions that
the exterior circumference of the lower end of the upper cylinder shall fit into
the interior of the upper end of the lower cylinder, so that the upper cylinder
can enter the lower cylinder telescopically to any suitable distance, openings
being previously made in both, so as to establish a communication between the
two cylindrical water spaces, the joint being secured and caulked in a suitable
manner. The fire boss is in the interior of the lower cylindrical water space,
_and_fire tubes-pass-therefrom vertically through the upper cylindrical water
space to the smoke box above. The fire is fed from above through the upper
cylindrical water space in the usual manner, and the pipes for the circulation
of the water are connected to the upper and lower parts of the boiler, as usual.

page_text: The manner of carrying my Invention into practical effect will be clearly
understood on reference to the accompanying Sheet of Drawings, in which
Fig. 1 is a front elevation of a boiler constructed according to my Invention;
Fig. 2, a vertical section; and Fig. 3, a sectional plan through about the
line A, B, of Fig. 1.
A is the upper cylindrical water space, and B the lower cylindrical water
space. The upper space A is made so much smaller in diameter as to
admit of its entering the lower water space to any suitable distance, by this
arrangement I bring the fire tubes into direct contact with the flames; C is
the opening for effecting a communication between the said water spaces;
D is the fire-box, the flames and heated gasses, from which pass through the
fire tubes E to the smoke box F, and from thence pass to the flue by the
pipe G. The fire is fed from the top of the boiler after removing the lid or
cover H, which lid or cover has a flange fitting loosely into the groove h
which groove is partially filled with sand to prevent the escape of smoke.
The fire-bars I are constructed by casting a circular plate of suitable diameter
and thickness, having alternate bars and spaces; this plate I rests upon the
flange or projection which is formed for that purpose upon the stand J,
which stand also serves to receive the ash-box or drawer K. In the front of
this box or drawer is placed a ventilator k, for regulating the the supply of air
to the fire, and upon the top of the stand J is a circular groove L of suitable
diameter and width to receive the bottom part of the lower cylindrical water
space B. In this cylinder B is a door b, at which the attendant may "stoke"
the fire and remove the clinker. The smoke box F may be easily removed
when the boiler is not in use for the purpose of cleaning, as also the fire-bars
for the purpose of removing the clinker, &c. When the smoke-box F and the
grate bars I are removed, if necessary, a scraper or brush may be passed
through the fire tubes E. M and M' are the pipes for effecting the circulation
of the hot water; N is a tap for drawing off the water from the boiler and
pipes when necessary; and at P, P, are shown the rings or annular plates
of iron, which by welding secure the plates forming the cylindrical water
spaces together.
Having thus fully described the nature of my Invention for "Improvements
in the Construction of Boilers employed for Warming Buildings," and the
manner in which the same is to be performed or carried into practical effect,
I would have it distinctly understood that I do not claim the general form nor
separate parts of these boilers, as such are well known; but what I do claim
as my Invention is,-

page_text: Firstly, the securing together of the various plates employed in the manu-
facture of these boilers by welding instead of the use of angle iron and rivets,
as heretofore employed in constructing boilers for this purpose.
And, secondly, I claim the peculiar construction of such boilers, connected
with or consequent upon this method of securing the various parts together, as
exhibited in the accompanying Drawings, and above described.
In witness whereof, I, the said Samuel Thomas Crook, have hereunto
set my hand and scal, this Twenty-second day of July, in the year
of our Lord One thousand eight hundred and sixty-one.
SAM. THOS. CROOK. (L.S.)
Signed, sealed, and delivered by the within-
named Samuel Thomas Crook, in the
presence of
WALTER BRIERLEY, Patent Agent,
Halifax.