Improvements in Vertical Boilers.
Year: 1893

page_text: Date of Application, 14th Dec.. 1893
Complete Specification Left, 13th Sept., 1894-Accepted, 20th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Vertical Boilers.
I SAMUEL RICHARD WHEELER of Sabrina House St. Matthews Road
Smethwick in the County of Staffordshire, Boilermaker and ALFRED OUGHTON
ALCOCK of 66 Wellington Street Winson Green Birmingham in the County of
Warwickshire, Boilermaker do hereby declare the nature of this invention to be
as follows:-
The shell of boiler to be in two parts an upper part A Fig. & 2 and a lower
part B Fig. 1 & 2 each having an angle iron ring attached by rivets for the
purpose of receiving bolts, by which these upper and lower parts are to be securely
held together, the joint. C Fig. 2 is to be made on the ends of the cylindrical plates
forming the upper and lower parts of the shell, by means of a ring of soft metal D
Fig. 5 which is to be pressed into a recess E Fig. 5 formed on the edge of the
shell plate of the lower part of the boiler, which edge and recess is situated slightly
below the top edge of the angle iron ring P Fig. 5. The lower edge of the shell
plate, of the upper part of the boiler A Fig. 1 & 2 is to project slightly beyond the
lower edge of the angle iron ring Q Fig. 5 and to be bevilled on the edge as shown
at F Fig. 5 for the purpose of causing the soft metal ring D to press tightly against
the inside of the angle iron ring attached to the lower part B Fig. 5 and so form
a steam tight joint. No manholes or sightholes are required in the upper part A
Fig. 1 & 2 of this boiler. The firebox G Fig. 2 is square in plan, see Fig. 4 with
the corners H Fig. 4 rounded to a good large radius from the top I Fig. 2 to the
level of the joint C Fig. 2 below which the form gradually developes into a perfect
circle, and is attached at its base, to the shell of the boiler in the usual way, this
gradual development from square to round in the form of the firebox is a special,
and important feature. The top plate I Fig. 2 forming the crown of the fire-
box G Fig. 2 to be in one plate, and the centre of it, is to be bulged or flanged
upwards, the curve J Fig. 2 to be of large radius, and rivetted as shown inside the
circular uptake K Fig. 2, this uptake to have a stout angle iron ring N Fig. 3
rivetted on at a suitable level to meet the underside of the curved top of the boiler,
this angle iron to have special screwed bolts for fixing the same to the curved
top O Fig. 3, by being screwed into the angle iron N and passing through the
strengthening ring R and curved top O. The joint to be made tight by a soft
metal ring L Fig. 3. The water tubes which cross from side to side of the firebox
in both directions, are arranged in tiers, and each and every tube is shown at a
slight inclination, the large or bellmouthed end M in all cases being highest, and
this arrangement of tubes is a special and important feature.
SAMUEL RICHARD WHEELER.
ALFRED OUGHTON ALCOCK.
COMPLETE SPECIFICATION.
Improvements in Vertical Boilers.
We, SAMUEL RICHARD WHEELER of Sabrina House St. Matthews Road
Smethwick in the County of Stafford Boiler Maker and ALFRED OUGHTON
ALCOCK of 66 Wellington Street Winson Green Birmingham in the County of
Pai 8

page_text: Warwick Boiler Maker 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 :-
Our invention has for its object improvements in vertical boilers applicable also
to those known as horizontal boilers by which we render it easy to obtain access
to the interior of the boiler and the tubes while the connections of the removable
part is made perfectly steam and water tight by a special joint which forms part
of our improvements. The firebox is also formed in such a manner and of such a
shape that the tubes can be more readily and cheaply inserted and made tight than
was previously the case with a circular fire box.
In order that our invention may be clearly understood and more easily carried
into practice we have appended hereunto two double sized sheets of drawings upon
which we have fully illustrated the nature of our said improvements and the
manner and mode of carrying the same into effect.
Figure 1 is an external view of one of our boilers.
Figure 2 is a vertical section through same.
Figure 3 is an enlarged section of the joint between the flue and the top of the
boiler at N.
.
Figure 4 is a horizontal section through the boiler and fire box.
Figure 5 is a similar section to Figure 3 but through the middle joint.
Figure 6 is a similar view to Figure 1 but shewing a boiler containing a modified
form of fire box.
Figure 7 is a vertical section through Figure 6.
Figure 8 is a horizontal section through same.
Figure 9 is an enlarged section of the top joint.
Figure 10 is a similar enlarged section of the bottom joint.
In carrying our invention into effect we form the shell of the boiler in two
parts A and B which we securely attach together by means of the angle iron
rings P and Q which are respectively riveted to the top and bottom parts of the
sbell at p¹ & q' so arranged that the joint between the two parts of the shell comes at
the rear of one of the angle plates the one or lower edge of the shell being recessed
to receive a packing ring D of any suitable material the top edge of the top part of
the shell being provided with the bevel or incline as shewn so that when the two
angle irons P and Q are drawn together by the bolts S the packing is tightly
compressed between the edges of the shell and is retained in position by the angle
iron P. The top joint between the top part O of the shell A and the uptake K is
formed by the angle iron ring N which is attached to the uptake K the inter-
mediate ring of packing of soft metal L or other material being inserted between
the angle iron N and the stiffening ring R which is attached to the top of the
shell the two being tightened up by the pins and nuts T as shewn.
By this ready means for obtaining access to the inside of the boiler no man or
sight holes whatever are required.
The fire box G is formed square as shewn at Figure 4 with the circular
corners H of large radius and this square is gradually developed raised or brought
up in one piece with the bottom G which is circular on plan and by thus being
gradually developed into a square from the circle we are enabled to form a much
more effective joint with the water tubes M than in the case of a circular fire box.
These tubes are arranged in tiers each and every tube having a slight inclination
upwards and are sometimes provided with an enlarged or bell shaped mouth_at
their upper end as shewn by Figure 7. The top or crown of the firebox J is
formed or developed from square to circular to form connection with the
uptake K.
In place of formning the square firebox from the circle I may form it of a
hexagon shape as shewn by Figure 8 or octagon or of any even number of sides
and I may carry this particular arrangement out in connection with horizontal as
well as vertical boilers...
:

page_text: Having now particularly described as ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1st. The improvements in steam boilers substantially as and for the purpose
herein set forth and shewn upon the accompanying drawings.
2nd. In boilers a square or other even sided fire box having a circular end for
attachment to the boiler substantially as and for the purpose herein set forth and
shewn upon the accompanying drawings.
3rd. In vertical boilers the removable shell substantially as and for the purpose
herein set forth & shewn.
4th. In vertical boilers the mode of & means for forming the bottom joint
substantially as and herein set forth and shewn by Figures 5 and 10.
5th. In vertical boilers the mode of and means for forming the top joint
substantially as herein set forth and shewn by Figures 3 and 9.
Dated this 12th day of September 1894.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicants.