Improvements relating to Railway Carriage Heating Apparatus.
Year: 1896

page_text: Date of Application 13th Feb., 1896
Complete Specification Left, 13th Nov., 1896-Accepted, 2nd Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements relating to Railway Carriage Heating Apparatus.
I, THOMAS DURNAN, of 18 Ashdell Road, in the City of Sheffield, Manager,
do hereby declare the nature of my invention to be as follows:-
This invention relates to the method of, and apparatus for, shutting off aud
regulating the admission of heated air from the storage heaters which are now
usually placed under the seats of railway carriages.
2
Hitherto the cylindrical storage heater has been enclosed in wed casing
provided with one or more horizontally moving hit-and-miss slides, but these are
found to warp by the action of the heat from the storage heater, and become
difficult and in some cases impossible to move.
I propose therefore to construct a cover and regulator as follows; the fixed
part of the cover I make preferably of sheet metal, but it may be made of papier
mache or other suitable heat resisting material, curved to a segment of a circle so
as to form quarter of a cylinder, and closed at both ends. It is made of a size
that will enclose the cylindrical storage heater and will leave ample room all round
for the free action of the moving regulator and also for an air space.
The regulator is similar in form to the fixed part before described but of smaller
radius, it is placed inside the cover and supported at each end upon pivots or axles,
so that it can be readily turned either inside the cover, or to the outside, by means
any suitable attachment to the projecting end of the axle.
of
I propose to fix upon the said axle a short arm to which a vertical rod is pin-
jointed, and its upper end is attached to a regulating handle and quadrant in the
carriage, as heretofore.
I propose to construct a series or line of holes through the carriage floor inside
the cover, and provide a longitudinal flange upon the regulator, so that when the
regulator is closed the holes will be uncovered, and the heated air can escape
through them into the open air, but when the regulator is open the holes will be
closed.
I may in some cases arrange the regulator to work outside the cover instead of
inside, but I prefer to arrange it inside.
Dated the 11th day of February 1896.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
5
COMPLETE SPECIFICATION.
Improvements relating to Railway Carriage Heating Apparatus.
I, THOMAS DURNAN of 18 Ashdell Road, in the City of Sheffield, Manager,
do hereby declare the nature of this invention and in what manner the same has
to be performed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to the method of and apparatus for shutting off, and
regulating the admission of heated air from the storage-heaters which are now
usually fixed under the seats of railway carriages.

page_text: Hitherto the cylindrical storage-heater has been enclosed in a wood casing
provided with one or more wood slides having hit and miss apertures, but the
effect of the heat is to cause these slides to warp and become difficult to move.
To obviate this difficulty and to otherwise improve the apparatus is the object
of my present invention, one important and essential feature being to permit the
escape of the heat when the opening or openings into the carriage are closed..
I have illustrated three of the ways in which I carry out the invention, in the
annexed sheet of drawings, in which:
Fig. 1, represents an elevation of one end of a storage-heater and casing.
Fig. 2, end view of same.
Fig. 3, end view, and Fig. 4, side elevation of another arrangement of heater
case.
Fig. 5, end view, and Fig. 6, longitudinal section of another arrangement of
heater case.
Referring to Figs. 1 & 2, I construct the fixed part of the casing A, either of
sheet metal, papier maché, or of other suitable heat resisting material, curved to a
segment of a circle or thereabouts, forming quarter of a cylinder closed at both
ends.
It is made to enclose a cylindrical heater B, with ample room all round for hot
air space and the free action of the movable regulator C.
The regulator C, is similar in configuration to the fixed part A, but is of smaller
radius, it is placed within the casing and is supported by pivots or short axies D,
so that it can be easily rotated thereon either within the casing, or to the outside
as shown in Fig. 2, by means of a suitable arrangement of rods or levers connected
with an indicator handle, but this forms no part of the invention.
I construct the regulator C, with a foot piece E, preferably extending its full
length, and through the carriage floor I make a series of holes H in line, which
the foot piece E, will close when the regulator is turned within the casing to its
full extent; or an intermediate facing board F, carried within the casing may
be used if preferred, it would be perforated to correspond with the holes in the
floor.
Thus when the regulator is open to the carriage the holes H, are closed, and
vice versa, and when a mild temperature is required the regulator is partially
opened, admitting pure air through the holes H, which is warmed as it passes
round the storage heater before entering the carriage.
According to a modification of my invention shown in Figs. 3 & 4, I employ a
casing very similar to that before described, which contains the storage heater,
and I close the front opening with a fixed metallic plate G, having a series of slots
or openings I, and behind it a sliding metallic plate J, similarly provided with
openings; the bottom of the sliding plate J, has a flat foot plate K, also provided
with openings corresponding with openings in the floor which are covered or
uncovered as the plate J, is moved in one direction or the other. Thus when the
slots I, are open the holes in the floor are closed.
According to another arrangement shown in Figs. 5 and 6, 1 make the casing to
completely cover in the storage heater B, but I make the end plates L separate
from the casing, and fixed upon pivots or axles M, by which the end plates or
doors may be opened and closed; this would be accomplished by cranks and rods N,
or other equivalent mechanism.
In the drawings the door L, is shown open, and in this position it closes one or
more openings O, through the carriage floor, but when raised so as to close the end
of the casing, the holes in the floor are open to permit the escape of hot air.
Having now particularly described and 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 :-
1. An apparatus for regulating the admission of heated air from a storage-
heater into a railway carriage, and when closed permits its escape into the outer

page_text: atmosphere, as herein before described, and as shown in Figs. 1 and 2, of the
annexed drawings.
2. An apparatus for regulating the admission of heated air from a storage
heater into a railway carriage, and when closed permits its escape into the outer
atmosphere by means of a sliding regulator as hereinbefore described, and as
shown in Figs. 3 and 4, of the annexed drawings.
3. An apparatus for regulating the admission of heated air from a storage
heater into a railway carriage, and when closed permits its escape into the outer
atmosphere, by means of fall-down end doors, as herein before described, and as
shown in Figs. 5 and 6 of the annexed drawings.
4. A storage-heater casing for vehicles having means for regulating the
admission of heated air into the vehicle, in combination with means for its escape
into the outer atmosphere when the regulator is closed substantially as hereinbefore
described and set forth.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.