Improvements in or connected with Heating Coils.
Year: 1894

page_text: Date of Application, 12th Mar., 1894
Complete Specification Left. 12th Dec., 1894-Accepted, 9th Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with Heating Coils.
I, MICHAEL MARY BROPHY, of the Firm of James Slater & Co., of 251, High
Holborn, in the County of London, Engineers, do hereby declare the nature of
this invention to be as follows:-
This invention relates to coils for heating purposes and has for object to so
construct them that they can be readily moved relatively with one another or with
the walls or casing enclosing them to enable them to be easily cleaned or dusted.
In carrying out my invention I construct each coil of a series of bent pipes the
The ends
ends of which are connected to a tube or box in a well known manner.
of this tube or box enter sockets or fittings fixed to a bracket the said sockets
being connected with the inlet or flow and outlet or return pipes respectively of the
system of circulating pipes and provided with suitable valves advantageously con-
The sockets or fittings
nected together so as to be operated by one handle.
enable the tube or box to turn or hinge therein and are provided with stuffing
boxes and a spring at one end to render the joints tight.
In some cases the said valves can be arranged on the bracket so that the coil
and its sockets can be disconnected from the said bracket without interfering with
the valves.
When a series of coils is employed I connect the sockets at the respective ends
of each tube or box with a box or fitting connected to the main pipes and controlled
by suitable valves.
The casing enclosing the coil or coils is advantageously provided with doors for
the inlet of the cold air and outlet of the heated air respectively in the usual
manner but in order that they can be adjusted in any required position to regulate
the flow of air a frictional device or brake is advantageously employed adapted to
press against a flange on one of the doors and against the operating handle of the
other door.
1 1904
Improvements in or connected with Heating Colis.
I, MICHAEL MARY BROPHY, of the Firm of James Slater & Co., of 251, High
Holborn, in the County of London, Engineers, do hereby declare the nature of
this invention 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 coils for heating purposes and has for object to so
construct them that they can be readily moved relatively with' one another or with
the walls or casing enclosing them to enable them to be easily cleaned or dusted.
series of bent pipes the
In carrying out my invention I construct each coil of
The rends
ends of which are connected to a tube or box in a well known manner.

page_text: of this tube or box enter sockets or fittings fixed to a bracket, the said sockets
being connected with the inlet or flow and outlet or return pipes respectively of the
system of circulating pipes and provided with suitable valves advantageously
connected together so as to be operated by one handle. The sockets or fittings
enable the tube or box to turn or hinge therein and are provided with stuffing-boxes
and a spring at one end to render the joints tight.
In some cases the said valves can be arranged on the bracket so that the coil
and its sockets can be disconnected from the said bracket without interfering with
the valves.
When a series of coils is employed I connect the sockets at the respective ends
of each tube or box with a box or fitting connected to the main pipes and controlled
by suitable valves or cocks.
The casing enclosing the coil or coils is advantageously provided with doors for
the inlet of the cold air and outlet of the heated air respectively in the usual
manner but, in order that they can be adjusted in any required position to regulate
the flow of air, a frictional device or brake is advantageously employed adapted to
press against a flange on one of the doors and against the operating handle of the
other door.
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawings, in which :-
+
Figure 1 is a longitudinal vertical section of a heating apparatus constructed
according to my invention, the said apparatus being provided with three heating
coils :
Figure 2 is a horizontal section on the line 2-2, Figure 1; and,
Figure 3 is a transverse section on the line 3-3, Figure 2:
Figure 4 is a sectional elevation drawn to an enlarged scale shewing the manner
in which the coils are hinged and the valves for controlling the passage of the
heating medium; and,
Figure 5 is a view of the same taken at right angles to that shewn by Figure 4:
Figure 6 is a sectional elevation of a part of the apparatus when constructed so
as to allow the coil or coils to be disconnected without interfering with the valves;
and,
Figure 7 is an enlarged section of a detail.
Similar reference letters indicate corresponding parts throughout the drawings.
a, a, a indicate the heating coils which consist of beat pipes, and b, b, bare the
tubes or boxes to which the ends of the said pipes are connected, a division c being
arranged in each tube to cause the heating medium to circulate through the
pipes a, a. d is the casing enclosing the coils, and e, f are the doors for the inlet
of the cold air and the outlet of the heated air respectively, all of which parts are
of known construction.
9: 9 are the sockets or fittings I provide for the reception of the ends, of
the tubes or boxes b, b so that the latter can turn or hinge therein, the said ends
being formed cylindrical. a', a', a' are projections upon the coils a, a, a forming
distance pieces to prevent the said coils being moved too close together. is the
bracket carrying the said sockets, the upper part of the bracket being provided
with a recess h¹, and holes h³, h* for the reception of cylindrical extensions 9³, g³ on
the fittings g, 9 while the lower part of the bracket is provided with a recess for
the reception of flanges g³, g³ formed on the fittings g', g' and with bosses h
entering recesses in the said sockets and upon which the latter are supported.
i, i are the stuffing boxes for the joints between the ends of the tubes b, b and the
fittings 9, 9', the said stuffing-boxes advantageously consisting of annular grooves i, i
for the reception of the packing material, into which grooves correspondingly
shaped ribs or projections 63, 63 upon the tubes b, b enter and bear against the
packing material. j, j are the springs for keeping the ribs 63, 63 and the packing
material in close contact and for taking up the wear of the said packing, the said,
springs being located between the top of the recess h' in the bracket and shouldersg',g
on the fittings g, g. k, k¹ are the flow and return pipes connected respectively to

page_text: ,,
m³
the fittings g, g', and 1, are the valves arranged respectively in the said fittings,
the valve controlling the supply of the heating medium while the valve l' serves
to prevent when shut the entrance from the return pipe ¹ of the heating medium
from other coils. The valves 1, l' are advantageously of the "hit and miss
as shewn in Figure 4, and rotated by levers m, m connected together by rods m², m¹
type,
provided with handles m³, m³, the said valves being held in place by caps m³,
screwed onto the fittings g, g', the joints between the said valves and caps being
formed in a similar manner to those between the fittings g, g' and the ends of the
tubes b, b. In order that the springs for taking up the wear of the packing shall
also press the valves 1, 1. against their seats, the said valves are formed in
two parts with the springs between them, the parts engaging together by clutch
teeth, as clearly shewn in Figure 4*.
In the arrangement illustrated by Figure 6, the casings of the valves, l'are
bolted to one side of the bracket h while the sockets or fittings g, g' are.bolted to
the opposite side, openings 9° connecting the openings of the said fittings with the
valves. By this arrangement it will be seen that the coils and their sockets can be
disconnected from the bracket without interfering with the valves 1, 1. In this
arrangement each socket or fitting 9 is advantageously provided with a sliding
hollow bush n between the lower edge of which and the shoulder the packing
is placed, the spring being arranged between the upper part of the said bush and
a cap on the fitting 9, a screw being employed to adjust the degree of
compression of the spring j.
o, o, Figures 1, 2 and 3, are the boxes or fittings to which I connect the sockets
or fittings g, g¹ respectively when a series of coils is employed as shewn, the said
boxes or fittings being respectively connected by pipes p, p to the main flow and
return pipes 9, 9. r, rare cocks in the said pipes q, q' for opening and shutting
off communication between the coils and the said main pipes.
s, Figures 1 and 7, is the frictional device or brake I employ for maintaining the
doors e and in any desired position to regulate the flow of air through the
apparatus. This device advantageously consists of two blocks t, t' arranged in
recesses u, u at the top of the casing d and pressed by springs v, v' respectively
against a flange el formed on the door e and against the handle f¹ of the door f.
w, w are doors at the front of the casing d which when opened allow the coils to
be swung upon their hinges through the door opening to enable them to be cleaned
or dusted. The dotted lines in Figure 2 represent one of the coils so moved.
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. A heating coil so constructed that the pipes or sections of which it is composed
can be moved relatively with one another or with the walls or casing enclosing
them without the necessity for disconnecting the parts substantially as, and for the
purpose, described.
2. A heating coil the pipes or sections of which are hinged or pivotted in such a
manner that they can be moved without interfering with the circulation of the
heating medium through the same, substantially as described.
3. A heating coil having a series of sections hinged in sockets or fittings,
substantially as hereinbefore described.
4. The manufacture and use of heating coils substantially as hereinbefore
described and illustrated in the accompanying drawings.
Dated the 12th day of December 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.