IMPROVEMENTS IN APPARATUS FOR HEATING RAILWAY CARRIAGES AND OTHER VEHICLES
Year: 1884

page_text: I WILLIAM ROBERT LAKE of the firm of Haseltine Lake & Co Patent Agents
Southampton Buildings London in the County of Middlesex do hereby declare
the nature of said invention for "IMPROVEMENTS IN APPARATUS FOR HEATING
RAILWAY CARRIAGES AND OTHER VEHICLES to be as follows:-
This improvement relates particularly to an apparatus which I have used for
heating railway carriages and other vehicles.
In this apparatus I use vessels having compartments containing acetate of soda,
acetate of potash, or some other material highly retentive of heat, and a passage
for steam or other heating agent leading through the aforesaid compartment.
My present improvement is designed for such vessels, but it may be used for
various other purposes.
The improvement consists in a vessel having a passage through it and a space for
a heat storage compound hermetically sealed.
The improvement-also consists in a vessel composed of two concentric tubes and
two heads arranged at the ends of the tubes and welded thereto so as to form two
compartments which are separated from each other and from the surrounding
atmosphere by hermetically sealed joints.
Dated this 8th day of January 1884.
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: I WILLIAM ROBERT LAKE of the firm of Haseltine Lake & Co Patent Agents
Southampton Buildings in the County of Middlesex do hereby declare the nature
of my invention for "IMPROVEMENTS IN APPARATUS FOR BEATING RAILWAY
CARRIAGES AND OTHER VEHICLES and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
This improvement relates to apparatus for heating railway carriages and other
vehicles.
In this apparatus vessels are employed having compartments containing
acetate of soda, acetate of potash or some other material, highly retentive of heat,
and a passage for steam or other heating agent leading through the aforesaid
compartment.
The present improvement is designed for such vessels, but it may be used for
various other purposes.
The said invention comprises a vessel having a passage through the centre and
an annular space for a heat storage compound hermetically sealed.
It also comprises a vessel composed of two concentric tubes and two heads
arranged at the ends of the tubes and welded thereto so as to form two com-
partments which are separated from each other and from the surrounding
atmosphere by hermetically sealed joints.
In the accompanying drawing Figure 1 is a central longitudinal section of a
vessel or reservoir embodying my improvement; and Figure 2 is a similar view of
Similar letters of reference
. a vessel or reservoir of somewhat modified form.
designate corresponding parts in both figures.
A designates a metal tube which may be round or of any other suitable form,
and B designates metal heads fitting in the end portions of this tube.
The tube and the heads are to be of such metal that they can be welded
together.
C designates another tube which also may be round or of any other suitable
shape.
It is smaller than the tube A and arranged inside it. It either fits upon flanges
or projections a with which the heads B are provided as shown in Figure 1, or in
side holes in the said beads, as shown in Figure 2. This tube C is of such metal
that it can be welded and it is secured to the heads by being welded thereto. The
heads are common to both the tubes A C. I thus make a vessel or reservoir
which has hermetically sealed joints and which is both simple and durable. The
vessel thus provided has two compartments which are separated from each other
and from the surrounding atmosphere by hermetically sealed joints. The heads as
shown in Figure 1 or the ends of the tube C as shown in Figure 2 will have screw
threads tapped in them for the attachment of pipes for conveying to it a heating
agent, such for instance, as steam, air or water.
The space between the tubes and heads is intended to be supplied with a
material which will be very retentive of heat, as for example acetate of soda or
acetate of potash. This material may be introduced before the last welding is
done or it may be introduced through a hole b fitted with a removable screw
plug c.
When the inner tube C is fitted inside the heads it may be reinforced at the ends
by internal bands welded with it.

page_text: This vessel or receptacle is advantageous, not alone for its simplicity, strength
and durability, but also because it will not be liable to leak at the joints owing to
its being practically one integral structure.
In some cases the inner tube may be expanded into a head like that shown in
Figure 2 instead of welding it in.
A vessel of the same form as the one just described may be cast, leaving only
the necessary holes or openings for withdrawing the sand and plugging them
afterwards.
These vessels are made for railway cars and also for private vehicles. These
which are used for railway cars will generally be fixtures therein and may be
heated by steam circulated through them. Those which are used for private
vehicles will be much smaller and can be heated by placing then in an upright
position over a gas flame. The gas heating apparatus will preferably be employed
with a cock which periodically will automatically cut off the supply of gas in order
that excessive heating will be obviated.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :--
1. A vessel having a passage through the centre and an annular space for a heat
storage compound hermetically sealed, substantially as specified.
2. A vessel consisting of two tubes one within the other and two heads at the
ends, common to both tubes and to which the tubes are welded so as to form two
compartiments that are separated from each other and from the surrounding
atmosphere by hermetically sealed joints, substantially as specified.
3. A vessel consisting of heads of metal, a tube welded upon the exterior of the
heads, and a tube welded upon flanges extending from the heads substantially as
specified.
Dated this 2nd day of October 1884
HASELTINE, LAKE & Co.,
For the Applicant.