Year: 1885

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this Invention a communication to me
from abroad by Marie Louis Jules Roger Labbé de Montais of Pierrefitte (Seine)
France, Gentleman, to be as follows:-
This Invention relates to an improved construction of steam boiler in which the
heat from petroleum or any kind of mineral or other oil burners capable of
producing the same heating effect is utilized for the rapid and economic production
of steam for driving machinery for propelling vehicles and boats, stationary engines
heating, and other purposes. The chief feature of this improved construction of
steam boiler consists in surmounting each burner with a chimney, or tube, which
constitutes the heating surface, and in grouping together a number of these tubes
within a shell, or casing of a form and dimensions suited to the purpose to which
the boiler is to be applied.
The Invention is illustrated, by way of example, in the accompanying drawing,
Figure 1. of which, shows a central vertical section of the boiler; Figure 2. a
partial plan with the cover removed, and Figure 3, a plan of the furnace, or lamp
provided with the oil-burners. The same letters of reference represent the same
parts in the three figures.
a is the boiler-shell supported upon a base b; c c c, are series of vertical tubes
open at both ends, and fixed at their upper and lower ends in the top and bottom
plates d, e, of the boiler, the lower ends of said tubes projecting slightly below the
bottom plate. These tubes may also, in some cases, contain cross-tubes, transversely
arranged, through which the water in the boiler would circulate. g is the steam-
dome, to which is fitted the steam-pipe h, and surrounding the dome is a water-
circulation pipe, or worm, for obtaining an increased heating surface by utilizing
the heat of the space in which the dome is contained. The base b, is provided at
one portion of its circumference with an opening, or openings, closed by sliding
doors, at which the lamp, or burners are introduced. The lamp consists of an
oil-holder i, in which are fitted burners k having flat wicks, l, similar to those of
מ.
13

page_text: petroleum heating stoves, the burners being equal in number to that of tubes c.
Each burner is provided, within the oil-holder i with a tube m, having openings n,
which, while allowing of the liquid freely entering, prevent it being thrown about
when the boiler is carried, on a vehicle, or vessel, for example, and is liable to
oscillation. Other tubes, o o, traversing the oil-holder, serve to admit air which
enters base b through holes p, for cooling oil-holder i, as well as through the
orifices of the burners for combustion.
In order to enable the whole of the wicks to be adjusted at one time, the
arrangement shown in Figure 3, is, preferably, adopted. r r¹, are two toothed
rings, or circular racks, which gear with pinions 8 81, on each of the burners. tis
a stem which carries two pinions for operating both toothed rings, simultaneously,
and, through them, the pinions 8 8¹. Any other mechanical arrangement for
operating both rings simultaneously may be adopted.
The lamp is introduced beneath the boiler, through the opening in the base b,
closed by sliding doors, as before mentioned, after which it is raised, and supported
upon blocks u, so as to bring the tops of the burners k within the bottom ends of
the tubes c, as shown in Figure 1. Or any other suitable supports, capable of
being raised, or lowered by the action of a lever, or rod, projecting through the
base, and operated from the outside of the boiler, may be employed.
.
To prevent the wind entering at the upper ends of the tubes c and interfering
with the proper action of the burners k, it is preferred to surmount the boiler with
a sort of hood, or cap v, with handle c; This hood also serves to confine the
escaping products of combustion around the steam-dome g. The steam-pipe h
passes through an aperture in the hood.
The details of the various parts of this improved boiler may be varied, without,
in any way, affecting the Invention.

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
Patent Agents, do hereby declare the nature of this Invention (a communication
to me from abroad by Marie Louis Jules Roger Labbé de Montais of Pierrefitte,
(Seine) France, Gentleman), 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 an improved construction of steam boiler in which the
heat from petroleum or any kind of mineral or other oil capable of producing the
same heating effect or of illuminating or other gas or other combustible is utilized
for the rapid and economic production of steam for driving machinery, for pro-
pelling vehicles, and boats, stationary engines, heating, and other purposes. The
chief feature of this improved construction of steam boiler consists in surmounting
each burner with a chimney or tube, which constitutes the beating surface, and in
grouping together a number of these tubes within a shell, or casing of a form and
dimensions suited to the purpose to which the boiler is to be applied.
The invention is illustrated, by way of example in the accompanying drawings,
Figure 1 of which shows a central vertical section of the boiler; Figure 2 a partial
plan with the cover removed, and Figure 3, a plan of the furnace, or lamp provided
with the oil-burners. Figure 4 shews a modified arrangement of the boiler. The
same letters of reference represent the same parts in all the figures.
a is the boiler-shell supported upon a base b; c, c, c, are series of vertical tubes
open at both ends, and fixed at their upper and lower ends in the top and bottom
plates d, e, of the boiler, the lower ends of said tubes projecting slightly below the
bottom plate. These tubes may also, in some cases, contain cross-tubes, trans-
versely arranged, through which the water in the boiler would circulate. g is the
steam-dome, to which is fitted the steam-pipe h, and surrounding the dome is a
water-circulation pipe, or worm, for obtaining an increased heating surface by
utilizing the heat of the space in which the dome is contained. The base b is
provided at one portion of its circumference with an opening, or openings, closed by
sliding doors at which the lamp, or burners are introduced. The lamp consists of
an oil-holder i, in which are fitted burners k having flat wicks 7, similar to those
of petroleum heating stoves, the burners being equal in number to that of tubes c.
Each burner is provided, within the oil-holder i with a tube m having openings n
which, while allowing of the liquid freely entering, prevent it being thrown about
when the boiler is carried, on a vehicle, or vessel, for example, and is liable to
oscillation. Other tubes o o, traversing the oil-holder, serve to admit air which
enters base 6 through holes p, for cooling oil-holder i, as well as through the
orifices of the burners for combustion.
In order to enable the whole of the wicks to be adjusted at one time, the
arrangement shewn in Figure 3 is preferably adopted. are two toothed rings,
or circular racks, which gear with pinions 8, 8¹ on each of the burners. t is a stem

page_text: which carries two pinions for operating both toothed rings r, r² simultaneously, and,
through them, the pinions 8, 8. Any other mechanical arrangement for operating
the wicks simultaneously may be adopted, such as for example, that shewn in
Figure 5, in which the burners are surrounded by a toothed ring or circular rack,
a gearing with the pinions ẞ of of the several burners, the stems y of the pinions
of the central burners being suitably extended for the purpose. The circular
rack a is operated by a stem o extending across the burners. € is an intermediate
pinion by which the operating pinion is put in gear with rack a the said
pinion being mounted above the rack and not gearing directly therewith.
The lamp is introduced beneath the boiler, through the opening in the base b
closed by sliding doors, as before mentioned, after which it is raised, and supported
upon blocks u, so as to bring the tops of the burners / within the bottom ends of
the tubes c as shewn in Figure 1. Or any other suitable supports, capable of
being raised, or lowered by the action of a lever, or rod, projecting through the
base, and operated from the outside of the boiler, may be employed.
...To prevent the wind entering at the upper ends of the tubes c and interfering
with the proper action of the burners kit is preferred to surmount the boiler with
a sort of hood, or cap v with handle ; this hood also serves to confine the
escaping products of combustion around the steam dome g. The steam-pipe h
passes through an aperture in the hood.
The details of the various parts of this improved boiler may be varied, without,
in any way, affecting the invention.
For example the burners may be of any suitable kind and the circulating tubes
contained within the flues c, may also be variously arranged. The boiler would of
course be provided with the ordinary gauges and safety valve.
A worm ? may also be employed for heating the feed water as shewn in
Figure 4. This worm which is placed in the top of the boiler is heated by the
gases of combustion escaping at the tops of the vertical flues c c. Any form of
worm or water heater may be employed. such as for example that shewn in the
drawing in which three or more rings are connected together by means of tubes 8, t.
The feed water isintroduced into the lower ring by the pipe u and passes out
through the pipe x into the lower part of the boiler, either in a heated state, if the
feed pump is working or in the form of steam, if no feed is taking place.
For indoor use, the boiler need only be enclosed in a circular casing at a distance
of from five to six inches from its sides, so as to form a heating chamber in which
the coils would be placed; the top of the boiler being covered with a sheet iron
cap having as many holes as there are vertical flues, for enabling the burners to be
inspected. When however, the boiler is to be placed on a vehicle or boat or in
other position where it is liable to be exposed to currents of air, the casing should
be provided with a cover fixed thereto which while allowing of the free escape of
the products of combustion will admit air into the interior of the boiler and also
enable the attendant to overlook the burners.
For this purpose, a metal casing of about two inches in depth is placed on the
top of the boiler, which is composed of two chambers an outer annular chamber y,
of about two inches in depth and breadth, and a central chamber z.
The hot air escapes through a number of small holes a¹ made in the top of the
circular casing, passing thence through the small holes a¹ in the side of the
central space into chamber y, whence it escapes through boles d¹ made in
the top of the casing (see figure 4) which is formed of two discs f¹, g¹, the latter
of which is revolved by means of a handle h¹, so as to uncover or close the
orifices of the flues corresponding to the several burners and also prevent the
outer air entering at the perforations from gaining access to the interior through
said flues. The bottom plate is provided with short tubular wind guards ¹,
which obstruct the further passage of the external air should it have gained access
to the interior, in the event of a squall striking the boiler, in such manner that the
apparatus can only be supplied with air from the rear or opposite side to that in
-which it is travelling or the wind is blowing, as is clearly shown in Figures 6 and 7.

page_text: In this manner the air striking the front of the boiler is prevented from entering,
and the burners being thus rendered inaccessible to air currents will act with
perfect regularity.
In case the wind or air currents coming from the rear, should be travelling at a
greater velocity than the vehicle, a movable screen M. N. may be employed, which
is raised or lowered to break it or prevent its being directly or violently introduced
into the boiler.
The boiler is surmounted by a dome or cap to throw off the rain, composed of
two discs, m' arranged and operating in a similar manner to discs f¹, g' by
means of a handle, as shewn. By uncovering the orifices by means of these two
handles, the attendant standing above the boiler can thus overlook the working,
without removing the cover.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1st. The improved steam generator heated by means of petroleum or other
mineral oil burners or by gas &c herein described and illustrated in the drawings,
the essential feature in which, consists in the arrangement and combination of
flues c each heated by a separate burner k, substantially as specified.
2nd. In a steam boiler heated by means of petroleum as described, the com-
bination with flues each heated by a separate burner, of a coil for heating the
feed water before its introduction into the boiler, cover plates i¹, j, having tubular
wind-guards and cap or dome m¹ for preventing the sudden introduction of the
external air into the combustion chambers, while at same time, permitting of their
ready inspection at all times, all as herein before described and illustrated in the
drawings.
3rd. The method of simultaneously adjusting the whole of the burners by means
of a circular rack gearing with pinions mounted upon each of said burners as
herein described and illustrated in the drawings.