Improvements in Hot Water or Steam Heating Radiators.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Hot Water or Steam Heating Radiators.
I, WILLIAM FROGGATT, of Chapeltown, near Sheffield, in the County of York,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to the heating apparatus ordinarily used in which the
heat is radiated from pipes or coils through which hot water or steam is passed.
It has for its object improvements in such radiators, by which the admission
and discharge of the air to be heated can be very simply and easily regulated
and adjusted, either fresh air being admitted from outside, and delivered into
the room or place to be heated after having passed over the heated pipes, or if
desired the air in the room being warmed over and over again without the admis-
sion of fresh air from the outside, whilst the interior of the radiator can be easily
made accessible for cleaning, which is then effected without trouble or difficulty,
the whole apparatus being extremely simple, and easily used and kept in order.
Supposing that the invention is to be applied to an ordinary radiator consisting
of a sufficient number of vertical loops or connected coils, through which hot
water or steam is passed, the heat from which is radiated into the room from
the front of the set of pipes, I make a loose separate ornamental top, which is
simply dropped upon two flat lugs or supports formed at the top of the two end
pipes of the coil.
The top is provided with an ornamental front and ends of sufficient depth to
cover the upper bends of the pipes, and may be prevented from shifting its
position by stops on its lower surface fitting against the ends of the flat supports
described, and no screws or other additional fastenings are required, so that the
top can be instantly lifted off for the purpose of cleaning between and behind
the radiator loops or coils. I make the top solid, and without perforations or
gratings, so that the heated air may pass outward into the room through the
upper part of the front of the radiator, instead of passing up through the top,
in which case the wall or ceiling are liable to discolouration by dust or the like.
I make the plate which covers the lower part of the front of the radiator (below
the bends of the pipes in the coil) also removeable, and I hold it in position,
when in its place, without screws or bolts by means of a spring at each end,
which springs hold it sufficiently firmly, but allow it to be instantly removed.
without difficulty when required, for cleaning purposes. The plate, which may
be made as ornamental as desired, and is provided with perforations through it
for the admission of sufficient air, forms the front of the bottom box below the
bends of the pipes, and in this box I arrange a thin metal plate fixed to a light
longitudinal bar the ends of which rest in notches at the ends of the box, and of
such size that when its front edge is turned up its back edge touches the ground,
and fresh air from outside can pass above it from an inlet opening above the
floor at the back of the radiator, the air passing up between the heated pipes.
whilst when turned in the other direction its front edge reaches the ground
whilst its back edge reaches above the inlet opening at the back and closes it
sufficiently, and air from the room then enters through the perforations in the
A 077

page_text: lower front plate described, and passes up between the heated pipes and into
the room.
The pivotted plate can be readily lifted out or replaced.
The front row of pipes which form the coils of the radiator are formed with
vertical fins or ribs between them for a sufficient height, which meet together
so as to form a screw between the pipes and prevent the air from passing out
directly into the room until it has passed a sufficient height up in contact with
the heated pipes.
In the ribs between two of the pipes, preferably the two central ones, I form
at a convenient height a vertical slot in which can be moved up and down a
handle or knob, which is retained in any position by a spring or equivalent
means, and to this handle (inside the ribs) I attach a rod which is passed down
and hooked round an eye upon (or otherwise jointed to) the pivotted plate below,
so that the latter may be moved into either of its extreme positions, or retained
in any intermediate one.
The air passing up (either fresh air from the outside, or air from the lower
part of the room or chamber) and becoming heated between the pipes of the coil
passes out into the room through the upper part of the front of the radiator
above the level to which the ribs or plates on the pipes extend.
The details of construction and arrangement may be varied more or less, as
may be found advisable to suit different circumstances and conditions.
Dated this 28th day of March 1808
EDWARDS AND CO.,
65 and 66, Chancery Lane, London,
Agents for the Applicant.
Improvements in Hot Water or Steam Heating Radiators.
I, WILLIAM FROGGATT, of Chapeltown, near Sheffield, in the County of York,
Engineer, 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, and accompanying drawing, that is to say:-
My invention relates to the heating apparatus ordinarily used in which the
heat is radiated from pipes or coils through which hot water or steam is passed.
It has for its object improvements in such radiators, by which the admission
and discharge of the air to be heated by passing over the coils can be very simply
and easily regulated and adjusted, either fresh air being admitted from outside, and
delivered into the room or place to be heated after having passed over the
heated pipes; or, if desired, the air in the room being made to circulate so that
it is warned over and over again without the admission of fresh air from the
outside, whilst the interior of the radiator can be easily made accessible for
cleaning, which is then effected without trouble or difficulty, the whole apparatus
being extremely simple, and easily used and kept in order.
The accompanying drawing is in illustration of my invention, Figure 1 being
a front view partly in section, Figure 2 a transverse section, and Figure 3 a plan,
partly in section, following the dotted line xy, in Figure 1.
Supposing that the invention is to be applied to an ordinary radiator consisting
of a sufficient number of vertical loops or connected coils a, a, a, of suitable sec-
tion, through which hot water or steam is passed, by means of inlet and outlet
pipes at b and c, the heat being radiated into the room from the front of the set

page_text: of pipes, over which air for heating the room is made to pass, I make a loose
eparate ornamental top d, which is simply dropped upon two flat lugs or sup-
ports e, e formed at the top of the two end pipes or upright chambers of the coil,
the several pipes or loops of which are cast separate and connected together by
plain nipples in the usual way.
The top d is provided with an ornamental front f and ends, of sufficient depth
to cover the upper bends of the pipes a, a, a, and may be prevented from shifting
its position by stops g, g, on its lower surface, fitting against the ends of the flat
supports e, e described, and no screws or other additional fastenings are required,
so that the top can be instantly lifted off for the purpose of cleaning between
and behind the radiator loops or coils. I make the top d solid, and without
perforations or gratings, so that the heated air may pass outward into the room
through the upper part of the front of the radiator, instead of passing up through
the top, in which case the wall or ceiling are liable to discolouration by dust or
the like.
I make the plate h, which covers the lower part of the front of the radiator
(below the bends of the pipes a in the coil), also removeable, and I hold it in
position, when in its place, without screws or bolts, by means of a spring i at
each end, which springs hold it sufficiently firmly, but allow it to be instantly
removed without difficulty when required, for cleaning purposes. The plate h,
which may be made as ornamental as desired, and is provided with perforations
through it for the admission of sufficient air, (as shown in Figures 1 and 2),
forms the front of the bottom box below the bends of the pipes a, and in this
box I arrange a thin metal plate 7 fixed to a light longitudinal bar m the ends
of which rest in notches n, n, at the ends of the box, the plate being of such
size that when its front edge is turned up (as shown in the figures) its back
edge touches the ground, and fresh air from outside can pass above it from an
inlet opening at o above the floor at the back of the radiator, the air passing up
between the heated pipes a, whilst when turned in the other direction (as shown
in dotted lines in Figure 2) its front edge reaches the ground whilst its back
edge reaches above the inlet opening at the back at o and closes it sufficiently,
and air from the room then enters through the perforations in the lower front
plate described, and passes up between the heated pipes a and into the room.
The pivotted plate can be readily lifted out or replaced, when the plate h is
removed.
The front row of pipes a, which form the coils of the radiator, are formed with
vertical fins or ribs p, p, p, between them for a sufficient height, which meet
together so as to form a screen between the pipes a and prevent the air from
passing out directly into the room until it has passed a sufficient height up in
contact with the heated pipes, when it passes out over the upper edge of the
screen.
I
In the ribs p, between two of the pipes, preferably the two central ones,
form at a convenient height a vertical slot r in which can be moved up and down
a handle or knob s, which is retained in any position by a spring t or equivalent
5 means, and to this handle (inside the ribs p) I attach a rod u which is passed
down and hooked round an eye upon the pivotted plate below (or is otherwise
jointed to the latter), so that the plate may be moved into either of its extreme
positions, or retained in any intermediate one.
The air passing up (either fresh air from the outside, or air from the lower
part of the room or chamber, according to the position of the regulating plate 7),
and becoming heated between the pipes of the coil, passes out into the room
through the upper part of the front of the radiator above the level to which the
ribs or plates on the pipes extend.
The improved radiator is extremely simple in construction, it can be thoroughly
5 cleaned and put together again by any servant, and it can be used at will either
for admitting fresh air from outside, or for warming over and over again the
air contained in the room in which it is fixed.

page_text: The details of construction and arrangement may be varied more or less, as
may be found advisable to suit different circumstances and conditions.
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:
In radiators for heating rooms by hot water or steam,
1. The combination with the loops or coils a, of the separate solid top having
front and ends f, and supported by being dropped upon the flat lugs or supports e
on the end pipes or chambers of the coil, and held in position by the stops 9, 9,
so that the top can be instantly lifted off or replaced, for the purpose of cleaning
the apparatus, substantially as described and illustrated.
2. The method of closing the front of the bottom box or space k, below the
loops or coils a, by means of a separate perforated plate h held in position by
springs i,, fitting between the end pipes or chambers so that it can be instantly
removed or replaced, substantially as described and illustrated.
3. The vertical ribs p, formed upon the sides of the front part of the separate
coils a, and extending up for only part of the height of the coils, so that the
heated air can escape through the space above them, substantially as described
and illustrated.
4. In combination with the coils a, front h, and lower box or space k, the
plate 7, supported on pivots turning in notches in bearings n, n, and adjustable
by means of a rod u and handle s moving in a slot r, substantially in the manner
and for the purpose described and illustrated.
Dated this 4th day of May 1898.
EDWARDS AND Co.,
65 and 66, Chancery Lane, London,
Agents for the Applicant.
EDWARDS AND Co.,
65 and 66, Chancery Lane, London,
Agents for the Applicant.