Improvements in Hot-water and Steam-heated Coils for Heating and Ventilating.
Year: 1895

page_text: Date of Application, 19th Mar., 1895-Accepted, 15th May, 1895
COMPLETE
SPECIFICATION.
Improvements in Hot-water and Steam-heated Coils for Heating and
Ventilating.
We, JAMES CRISPIN, HENRY JAMES CRISPIN, and GEORGE CRISPIN, all of
Nelson Street, Bristol, Horticultural 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 which relates to appliances, technically termed "coils," employed
in rooms and other places for heating and ventilating, consists in adapting coils
hitherto capable of heating only to serve both for heating and ventilating.
rows
According to this invention, in its application to a coil having horizontal
pipes, the spaces between the heating pipes and the front and rear
of the coil are blocked by strips or bars, preferably of wrought iron or other
suitable metal or material, held in place by bolts extending transversely across
the coil. The air inlet is, as is usual, situated towards the base of the coil.
A damper, as is customary, controls the inlet. Cold air entering at the inlet is
directed by the strips or bars aforesaid to pass up between the rows of pipes and is
heated as it ascends. It escapes at the top of the coil into the room or other place
where the coil is situated.
No air-tubes are employed.
In the application of this invention to a coil having vertical pipes, the strips or
bars for closing the spaces between the pipes are also set vertically. At front they
do not extend fully to the cap or top of the coil, and, at the back, they do not
reach the base. The open spaces at the rear constitute the air inlet to the coil, and
the open spaces at front constitute the outlet from the coil into the room or other
place where the coil is situated.
Instead of using separate strips or bars for closing the spaces between the pipes,
the spaces may be closed, in either a horizontal or vertical coil, by webs cast on the
pipes. Alternate pipes may have one or two such webs, or each pipe may have a
web meeting another like or similar web on the pipe next in order:
Referring to the accompanying sheet of illustrative drawings, Fig. 1 represents
in front elevation, and Fig. 2 in vertical transverse section, a horizontal coil
constructed and arranged to serve as a combined heating and ventilating coil in
accordance with this invention.
The outer spaces between the front and rear rows of the usual heating pipes a
are closed by the strips which are preferably made of wrought iron, but may be
of other suitable metal, or of wood, or of other suitable material. The strips or
bars 6 are firmly secured in place by bolts c extending transversely across the coil
and tightened by nuts c', as seen more particularly in the enlarged view shown at
Fig. 3.
The air inlet d is of an ordinary kiud, and at the base of the coil is a damper e,
as is customary, for controlling the inlet and blocking and unblocking, at will, a
grating at the front of the base.
On entering at the base of the coil, the air is, by the strips or bars b, confined to
the coil until it reaches the top or such point towards the top as may be desired,
for, if preferred, the strips or bars b need not be applied to the uppermost row or
rows of pipes. The air, heated in its ascent, is discharged through the open top of
the appliance into the room or other place where it is situated.

page_text: Fig. 4 illustrates in front view, and Fig. 5 in rear view, the application of this
invention to a heating coil having vertical pipes. The strips or bars b are set
vertically, as shown.
At front their lower ends are carried down to the base, but do not extend fully
up to the cap g. At the back the strips or bars 6 are carried up to the cap g but
do not extend fully down to the base f.
The open spaces at the rear constitute the air inlet, and the open spaces at the
front constitute the outlet by which the air, having been heated in its ascent
between the rows of pipes a, is allowed to escape into the room or other place where
the coil is situated.
The strips or bars b need not be curved as shown in the drawings. They may
be otherwise shaped conditionally on their blocking the spaces between the pipes.
Instead of blocking the said spaces by detachable strips or bars, they may be
closed by a web cast on each pipe and extending to the next in order, as seen at
Fig 6. Or, the web may be partly on one pipe and partly on the next in order
and together closing the space, as seen at Fig. 7.
Coils constructed and arranged in accordance with this invention serve as
combined heating and ventilating coils without involving the use of air tubes, and
are adapted for use, as combined heating and ventilating coils, with the same
simple connections as are employed in coils as hitherto constructed for heating
purposes only.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. In a horizontal hot-water or steam-heated "coil" such as is commonly
employed for heating rooms and other apartments, structures or places; closing by
means of strips or bars b, or the equivalents thereof (secured in place by transverse
bolts such as, or the like) the spaces between the heating pipes in the front and
rear rows so as to direct the air admitted to the coil upwards to any desired height
for discharge, substantially as herein before described with reference to Figs. 1 to 3
of the accompanying drawings.
2. In a vertical hot-water or steam-heated "coil" such as is commonly employed
for heating rooms and other apartments, structures or places, closing by means of
strips or bars such as b, or the equivalents thereof (secured in place by transverse
bolts such as c, or the like) the spaces between the heating pipes in the rear row
from a closed cap or cover downwards to a point sufficiently distant from the base
to allow free inlet of air and closing by similar means the spaces in the front row,
either from the base upwards to a point sufficiently distant from the said cap to
afford free outlet for the air heated in its ascent in the coil, or from the base
upwards to a grated or open cap, substantially as herein before described with
special reference to Figs. 4 and 5 of the accompanying sheet of drawings.
3. The modifications herein before described with reference to Figs. 6 and 7 of
the accompanying drawings, under which webs are cast on the heating pipes of the
front and rear rows and arranged to close such of the spaces between the said pipes
or such part of such spaces as may be desired, substantially as and for the purposes
set forth.
Dated this 18th day of March 1895.
NICHOLAS WATTS,
Bristol, Chartered Patent Agent.