IMPROVEMENTS IN STEAM AND OTHER ROILERS
Year: 1876

page_text: LETTERS PATENT to Richard Edmund Shill, of Ashton Villas, Derwent Grove,
East Dulwich, in the County of Surrey, Engineer, for the Invention of
"IMPROVEMENTS IN STEAM AND OTHER ROILERS."
Sealed the 21st July 1876, and dated the 26th January 1876.
PROVISIONAL SPECIFICATION left by the said Richard Edmund Shill at the
Office of the Commissioners of Patents on the 26th January 1876.
RICHARD EDMUND SHILL, of Ashton Villas, Derwent Grove, East Dulwich,
in the County of Surrey, Engineer. "IMPROVEMENTS IN STEAM AND OTHER
BOILERS."
The improvements apply particularly to boilers of comparatively small dimen-
sions, varying say from those for generating steam when utilized at the power of
that of one man to say that of three horses, but are not confined to boilers of such
powers.
In carrying out my improvements the inner or that surface of the boiler subject
to the direct heat employed is provided with a number of bent or other suitably
formed tubes adapted by their form to cause circulation through them of the water
contained in the boiler, and my present improvements consist in applying these
tubes to a plate or plates capable of ready removal and replacement for repair or
otherwise.
For this purpose the internal passage or flue of the boiler is connected to the
outer case or shell by flanges and screw and nut, or other suitable connections, and
the plate or plates carrying the tubes referred to for facilitating the flow of the
water whilst being heated in the boiler is or are connected to the surrounding parts
by corresponding screw bolts or other fastenings. These parts may be repeated in
some cases.
Boilers of the character described are applicable for heating by the flame of
jets of gas as well as by the combustion of coal, coke, or other fuel.
When the heat obtained is by the consumption of fuel the fire-bars may be
formed tubular and laid transversely so as to communicate sideways with the
respective side water spaces, and to facilitate the flow of the water through these
bars as heated I incline them from one side surface to the other, or I incline some
in one direction and some in the opposite.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Richard Edmund Shill in the Great Seal Patent Office on the 22nd
July 1876.
RICHARD EDMUND SHILL, of Ashton Villas, Derwent Grove, East Dulwich, in the
County of Surrey, Engineer. IMPROVEMENTS IN STEAM AND OTHER BOILERS."
The improvements apply particularly to boilers of comparatively small dimen-
sions, varying say from those for generating steam when utilized at the power of
that of one man to say that of three horses, but are not confined to boilers of such
powers.
In carrying out my improvements the inner or that surface of the boiler subject
to the direct heat employed is provided with a number of bent or other suitably
formed tubes adapted by their form to cause circulation through them of the water
contained in the boiler, and my present improvements consist in applying these
tubes to a plate or plates capable of ready removal and replacement for repair or
otherwise.
For this purpose the internal passage or flue of the boiler is connected to the
outer case or shell by flanges and screw and nut, or other suitable connections, and
the plate or plates carrying the tubes referred to for facilitating the flow of the
water whilst being heated in the boiler is or are connected to the surrounding parts
by corresponding screw bolts or other fastenings. These parts may be repeated in
some cases.
Boilers of the character described are applicable for heating by the flame of jets
of gas as well as by the combustion of coal, coke, or other fuel.
When the heat obtained is by the consumption of fuel the fire-bars may be
formed tubular and laid transversely so as to communicate sideways with the
respective side water spaces, and to facilitate the flow of the water through these
bars as heated I incline them from one side surface to the other, or I incline some
in one direction and some in the opposite.
But that the Invention may be the better understood I will, by the aid of the
accompanying Drawings, proceed to describe means pursued by me in carrying the
same into effect.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shews a vertical section and Figure 2 a portion of a horizontal section
of an upright boiler arranged according to my Invention, and adapted to be heated
by the use of fuel resting on the bars a. bis the inner or that surface of the
boiler subject to the direct action of the fire, and c are the bent tubes or water
spaces for the reception and circulation of the water contained in the boiler. This
inner surface b is connected to the outer surface d of the boiler by bolts and nuts c
at the flange pieces f, and these parts b and d are so arranged in relation one to
the other that by removal of these screw bolts and nuts the inner surface of the
boiler, with its bent water tubes c, may be readily removed from the outer portion
d for repair or replacement or cleansing of any of these tubes c. g is the fire-
door, a front view of which is shown separately by Figure 3. Figure 4 shews by
sectional plan view the inner surface b with its tubes c.
. Figure 5 shews a slight modification of the boiler just described adapted to be
heated by jets of gas from suitable burner or burners placed within or under it.
Similar parts of this boiler are indicated by the same letters of reference already
employed.
Figure 6 shews a longitudinal section and Figure 7 a sectional end view of a
horizontal boiler arranged according to my Invention. In this case the fuel for the
heat obtained is supported on the bars a, and the products of combustion are
conducted mainly over the fire-bridge a¹, which is perforated to admit of some of
such products passing through it to the flue chamber a, and thence to the chimney.

page_text: c are the circulation tubes, and these, with the fire-place and flue chamber a are
formed in the inner case or surface of the boiler b, which in this case is formed in
two parts connected together, and to the outer part d, as in the former illustration,
by screws and nuts through the flanges f
Figure 8 shews by sectional view a slight modification of the arrangement last
described in which the inner surface of the boiler is connected to the outer ono
by packed socket joints at h, h. Figure 9 shows a plan view of parts of the
interior separately.
Figure 10 shews by sectional view a modification of the Invention as applied to
a vertical boiler in which the interior surface b of the boiler is connected to the
exterior surface d thereof, as in the last figures, by packed socket joints at h, h,
and the tubes c are applied to a separate plate i, which is secured to the part 6 by
screws or otherwise.
I have not thought it necessary to shew the water tubes applied as fire-bars, as
the same will be readily understood.
Having thus described my Invention, and means which I adopt in carrying the
same into effect, I would have it understood that what I claim is the arranging or
combining parts of steam and other boilers in which the tubes for the circulation
of the water, and acted upon by the direct action of the heat employed are applied
to a plate or plates, or parts forming the inner surface of the boiler or part thereof,
so as to be capable of ready removal or replacement for repair or otherwise, as
required, substantially as described.
In witness whereof, I, the said Richard Edmund Shill, have hereunto set my
hand and seal, this Nineteenth day of July, in the year of our Lord One
thousand eight hundred and seventy-six.
Witness,
WILLIAM BROOKES,
62, Chancery Lanc,
London.
R. E. SHILL. (L.S.)