Year: 1896

page_text: Date of Application, 3rd Feb., 1005
Complete Specification Left, 3rd Nov., 1896-Accepted, 5th Dec., 1896
Complete Specification Left, 3rd Nov., 1896-Accepted, 5th Dec., 1896
We, FRANCIS EDWARD RAINEY, of No. 313 Central Chambers, Glasgow, in
the County of Lanark, Engineer, and THE MIRRLEES, WATSON
YARYAN Co. LD. of No. 45 Scotland Street, Glasgow, in the County of Lanark,
do hereby declare the nature of this invention to be as follows:-
This invention relates to the construction of water tube boilers in sections two
or more of which may be placed side by side heated by one fire, each section being
arranged in such a manner that there is continuous circulation of the water and
free delivery of steam from the tubes as it is generated therein. In each section
there are water drums at the bottom connected by vertical tubes to a steam and
water drum at the top. At each end of the section there is a series of
compartments arranged one above the other, the front series starting at a higher
level than the rear series. From the lowest rear compartment tubes slope up to
the lowest front compartment, whence tubes slope up to the second rear compartment
and so on from compartment to compartment up to the top. All the front
compartments and all the rear coinpartments except the lowest communicate directly
by lateral pipes with the steam and water drum at the top of the section, and the
lowest rear compartment communicates with the water drum at the botton. The
feed water is supplied preferably over the upper mouths of the vertical tubes which
connect the two drums. The colder water descends by these tubes to the water
drum below in which it deposits solid matters and the water ascends from this drum
to the lowest rear compartment and flows thence to and fro by the sloping tubes
from compartment to compartment finally passing from the highest front
compartment to. the steam and water drum above. While the water thus circulates
steam is generated in the sloping tubes and this steam which is carried into the
successive compartments passes from them by the lateral pipes directly into
the steam and water drum. The fire is arranged below the sloping tubes in the
space left in front of the water drum which is comparatively short. The flames
and hot products of combustion pass up between the sloping tubes to a chimney
at the top.
Dated this 3rd day of February 1896
ABEL & IMRAY,
Agents for the Applicants.
We, FRANCIS EDWARD RAINEY, of No. 313. Central Chambers, Glasgow,
in the County of Lanark, Engineer, and THE MIRRLEES, WATSON AND
YARYAN CO. LD., of No. 45 Scotland Street, Glasgow, in the County of Lanark,
do hereby declare the nature of this invention and in what manner the same is
to be performed to. be particularly described and ascertained in and by the
following statement:-
This invention relates to the construction of water tube boilers in sections two

page_text: or more of which may be placed side by side heated by one fire, each section being
arranged in such a manner that there is continuous circulation of the water and free
delivery of steam from the tubes as it is generated therein.
Fig. 1 of the accompanying drawings is a longitudinal section partly in elevation
and Fig. 2 is a transverse section partly in elevation of a boiler according to our
invention consisting of two duplex sections heated by one fire.
In each section there are water drums A. at the bottom connected by vertical
tubes B to a steam and water drum C at the top. At each end of the section thera
is a series of front compartments D and rear compartments D' arranged one above
the other, the front series D starting at a higher level than the rear series D¹.
From the lowest rear compartment D' tubes E slope up to the lowest front
compartment D whence tubes F slope up to the second rear compartment and so
on from compartment to compartment up to the top. All the front compartiments D
and all the rear compartments D' except the lowest of the latter communicate
directly by inclined lateral pipes G and G¹ with the steam and water drum C at
the top of the section, and the lowest rear compartment communicates by branches H
with the water drum A.
The feed water is supplied preferably at K over the upper mouths of the vertical
tubes B. The colder water descends by the tubes B to the water drum A in which
it deposits solid matters and the water ascends from this drum to the lowest of the
rear compartment D¹ and flows thence to and fro by the sloping tubes E and F
from compartment to compartment finally passing from the highest of the front
compartments D to the steam and water drum C.
While the water thus circulates, steam is generated in the sloping tubes E and F
and this steam which is carried into the successive compartments D D' passes from
them by the lateral pipes or passages G G¹ directly into the steam and water
drum C.
The fire L is arranged below the sloping tubes E in the space left in front of the
water drum A which is comparatively short.
The flames and hot products of combustion pass up between the sloping tubes
to a chimney M at the top towards which the sides and ends of the outer casing N
slope upwards and inwards.
Obviously the details of a boiler according to this invention may be variously
modified without departing from the general character of the invention, the leag
feature of which is the arrangement of the front and rear compartments D D', the
sloping tubes E by which they communicate with each other and the lateral
pipes G by which steam generated in the heated tubes E passes directly from the
compartments D D' to the steam and water drum C.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A water tube boiler constructed and operating substantially as described with
reference to the accompanying drawings.
2. The combination of the successive front and rear compartments, the sloping
tubes by which they communicate with each other and the lateral pipes by
which they communicate with the steam and water drum above, substantially
as described.
Dated this 3rd day of November 1896.
ABEL & IMRAY,
Agents for the Applicants.