Improvements in Connections and Valves for Heating and Ventilating Coils.
Year: 1894

page_text: Date of Application, 10th July, 1894
Complete Specification Left, 10th Apr., 1895-Accepted, 11th May, 1805
PROVISIONAL SPECIFICATION.
Improvements in Connections and Valves for Heating and
Ventilating Coils.
We, FRANK ASHWELL, and DAVID MEIN NESBIT, trading as Ashwell & Nesbit,
of Sycamore Lane, Leicester, and John Street, Adelphi, London, Warming and
Ventilating Engineers, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to the manner in which we construct connections or
union pieces or junction boxes with the valves for the same, for attachment to coils
of pipes or nests of pipes used for heating and ventilating, the object of our
invention being to produce a connecting piece and a valve capable of being readily
attached to any existing coil or battery and having its valve placed conveniently
for controlling the flow and return currents by one inovement of the lever or hand
wheel arranged upon it.
In carrying our invention into effect when constructing our junction piece for
attachment to an ordinary flow and return heating coil with flanges provided in
the usual manner at the bottom ends of the pipes of the coil, we make the
connecting casting in one piece with flanges to suit the pitch of the flanges upon
the pipes or coil. These two flanges upon our connecting box we make with their
openings leading into one common chamber, having only one entrance or delivery
opening provided for this junction chamber, so that although two flanges are
arranged thereupon with two separate passages leading from the chamber only one
inner passage communicates with the chamber from the main external supply and
exhaust passage; by this double connection and one inlet we are enabled to make
one valve control the inner opening so that the flow and return passages may be
conveniently and instantly regulated by the movement of the single valve.
Upon the bottom or underside of our duplex flange connection box we form a
common main branch or passage having flanges or connecting branches at each
end of the plain open passage for coupling up to the main pipes of the system,
that is, to the steam main and the condenser main, thereby making a circuit
connection, thus taking off the condensation from the steam main as well as from
the heating coil. The length of the box and the proportions and sizes of the
openings within it being arranged to suit the pipes to which it is to be connected
and which are to be jointed together for any particular purpose.
Within the connecting chamber we mount a stop valve for the purpose of
shutting or reducing the central passage leading from the common supply or
delivery box to the duplex junction chamber; the valve and its seat being of any
ordinary kind suitable for like purposes with packing chambers and stuffing box
and gland made in a form to permit of its easy attachment, by screwing, bolting
or by any other ordinary mechanical system of attachment to the body of the
metal box.
Sometimes we make our junction boxes with more than two openings leading
from one common supply chamber, by arranging diaphragms or walls as partitions
to divide one complete coil flow and return chamber from its companion chamber
formed in the same manner upon the same casting or within the same case or
frame.
We modify the shape and configuration of our connection box and its flanges
and fittings to suit the shape of the coil and the form of pipes to which it is to be

page_text: attached, and we cast the junction box or make it of sheet metal as may be most
suitable for any particular requirement.
Dated this 9th day of July 1894.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicants.
Improvements in Connections and Valves for Heating and
Ventilating Coils.
We, FRANK ASHWELL and DAVID MEIN NESBIT, trading as Ashwell and Nesbit,
of Sycamore Lane, Leicester and John Street, Adelphi, London, Warming and
Ventilating 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 has reference to the manner in which we construct connections,
or union pieces, or junction boxes, with the valves for the same, for attachment to
coils of pipes or nests of pipes used for heating and ventilating, the object of our
invention being to produce a connecting piece and a valve capable of being readily
attached to any existing coil or battery and having its valve placed conveniently
for controlling the flow and return currents by one movement of the lever or hand
wheel arranged upon it.
In the accompanying sheet of explanatory drawings-
Figure 1 is a sectional elevation of our improved junction valve box, and
Figure 2 is a longitudinal section of the same box with the valve omitted.
In carrying our invention into effect when constructing our junction piece for
attachment to an ordinary flow and return heating coil with flanges provided in the
usual manner at the bottom ends of the pipes of the coil, we make the connecting
casting A in one piece with flanges B B' to suit the pitch of the flanges upon the
pipes or coil. These two flanges upon our connecting box we make with their
openings leading into one common chamber C, having only one entrance or
delivery opening D provided for this junction chamber, so that although two
flanges are arranged thereupon with two separate passages leading from the
chamber C only one inner passage D communicates with the chamber from the
main external supply and exhaust passage B; by this double connection and one
inlet we are enabled to make one valve control the inner opening so that the flow
and return passages may be conveniently and instantly regulated by the movement
of the single valve.
Upon the bottom or underside of our duplex flange connection box we form a
common main branch or passage E having flanges or connecting branches F F at
each end of the plain open passage for coupling up to the main pipes of the system,
that is, to the steam main and the condenser main, thereby making a circuit
connection, thus taking off the condensation from the steam main as well as from
the heating coil. The length of the box and the proportions and sizes of the
openings within it being arranged to suit the pipes to which it is to be connected
and which are to be jointed together for any particular purpose.
Within the connecting chamber we mount a stop valve G for the purpose of
shutting or reducing the central passage D leading from the common supply or
delivery box C to the duplex junction chamber E; the valve G and its seat H
being of any ordinary kind suitable for like purposes with packing chambers and
"stuffing box spindle K and gland made in a form to permit of its easy attachment,

page_text: by screwing, bolting or by any other ordinary mechanical system of attachment to
the body of the metal box.
Sometimes we make our junction boxes with more than two openings leading
from one common supply chamber, by arranging diaphragms or walls as partitions
to divide one complete coil flow and return chamber from its companion chamber
formed in the same manner upon the same casting or within the same case or
frame.
We modify the shape and configuration of our connection box and its flanges
and fittings to suit the shape of the coil and the form of pipes to which it is to be
attached, and we cast the junction box or make it of sheet metal as may be most
suitable for any particular requirement.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is―
1. The improvements in junction boxes and combination valve branches or pipe
connections substantially as and for the purposes herein before described and as
illustrated in the accompanying drawings.
2. The construction of a metal junction box, coupling or union piece, having two
branches or passages leading into a common chamber, and having one passage port
or valve opening communicating from this common chamber to a common main
branch or passage, substantially as and for the purposes herein before described and
as illustrated in the accompanying drawings.
Dated this 9th day of April 1895.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicants.