Improvements in Heating and Ventilating Systems.
Year: 1893

page_text: Date of Application, 5th June, 1893
Complete Specification Left, 4th Apr., 1894-Accepted, 19th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Heating and Ventilating Systems.
We, FRANK ASHWELL, of Victoria Foundry, Sycamore Lane, Leicester, in
the County of Leicester, and DAVID MEIN NESBIT, of 14 John Street, Adelphi,
London W.C. trading as Ashwell and Nesbit, Heating 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 and arrange
appliances, apparatus and the shafts or flues connected therewith for use in heating
and ventilating buildings, the object of the invention being to render the apparatus
capable of more ready examination for cleaning and repair and for giving complete
control over the currents of air by means of one regulating shutter or one series of
regulating shutters.
In carrying our invention into effect we construct our heating coils in the
form of a battery or nest built up of a number of separate independent duplex
heaters.
Each segment we form with its duplex pipes arranged with a number of fins
running the whole length of the pipes for the purpose of increasing the heating
surface in the usual well known manner. We bolt up each complete segment by
means of bolts or pins passing through flanges provided at the upper and lower ends
and underneath each complete segment thus bolted up we arrange bearers having
rollers mounted therein upon which the segments are carried so that when it is
desired to withdraw one segment or the whole of the segments for examination
or for cleaning, the same may readily be accomplished by drawing out the coil
over the rollers upon which it is resting. Similarly in building up the complete
nest or battery when one complete coil has been erected, it can be coupled up to
another and then pushed forward over the bearing rollers into the interior of the
coil chamber.
The shape and configuration of the bearing rollers, brackets or base plates we
cut away or arrange with a view of securing the greatest amount of air space
that it is possible to obtain between the coils and the bottom of the battery
chamber.
We cause the air to travel through or past our heater battery into the central
flue or chamber and from thence to travel by the flues or uptakes leading into any
particular portion of the building which it is required to heat or ventilate, any
number of uptakes or flues being arranged to be fed from the one central chamber
or flue as may be desired. From the central chamber or main flue we provide
regulating shutters for the purpose of shutting off or closing the entrance to the
uptakes, each uptake or duct being arranged so that instead of a warm air supply
passing from the warm air main chamber when the regulating shutter is opened, a
cold air supply may be let in from under the bottom of the warm air chamber, a
suitable channel or series of cold air chambers being there provided, cut off from
the warm air chamber by means of concrete or other suitable material slabs.
shutters, with the passages into which they work, we make so that one movement
of the shutter shall control either the delivery of warm or cold air or a mixture of
both as may be required. Thus when it is desired to deliver warm air only we open
the shutter to the full extent and by so doing we close the inlet orifice for the cold
air; and when the shutter is placed in the mid position both warm and cold air are
allowed to pass into the same uptake or duct.
The
We arrange any ordinary form of shutter constructed from metal or other
suitable material provided with hinges, pivots and regulating handles, chains, cables

page_text: or levers for the purpose of providing full control over the movement of the shutter
from any desired position within the building, and we construct our chambers in
such a manner as to cause the double supply of air or an alternative or mixed
supply of hot or cold to be ensured into any portion of the building which it is
intended to ventilate or heat.
The operating handle of the shutter may be arranged in the main air duct or in
the room itself. The operation of opening and closing may be performed by means
of a thermostat or other regulator.
We do not limit the application of our improved system of mounting our coils
and arranging our flues and chambers with regulating shutters to any peculiar type
of heater or form of flue, but we employ any well known coil or heater and any
suitable form and configuration of flue, when carrying out our improved arrange-
ment of absolute control and complete inspection system of heating and ventilating,
as hereinbefore described when mounting our fin duplex coils in combination with
the passages and chambers.
Dated this 2nd day of June 1803
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Heating and Ventilating Systems.
We, FRANK ASHWELL, of Victoria Foundry, Sycamore Lane, Leicester, in
the County of Leicester, and DAVID MEIN NESBIT, of 14 John Street, Adelphi,
London W.C. trading as Ashwell and Nesbit, Heating 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 and arrange
appliances, apparatus and the shafts or flues connected therewith for use in heating
and ventilating buildings, the object of the invention being to render the apparatus
capable of more ready examination for cleaning and repair and for giving complete
control over the currents of air by means of one regulating shutter, or one series of
regulating shutters.
In the accompanying sheet of explanatory drawings,
Figure 1 is a sectional elevation through our heater chamber and through the
main flue chamber on the line z z
Figure 2 is a sectional plan of the same.
Figure 3 is a vertical transverse section on the line xx, and Figure 4 is a similar
sectional elevation on the line y y.
In Figure 1, O is the ground floor level of the building and P is the basement
floor level.
In carrying our invention into effect we construct our heating coils in the form
of a battery or nest A built up of a number of separate independent duplex
heaters a a. Each segment we form with its duplex pipes a, a arranged with a
number of fins a² running the whole length of the pipes for the purpose of increasing
the heating surface in the usual well known manner. We bolt up each complete
segment a, a¹ by means of bolts or pins B passing through flanges C provided at
the upper and lower ends, and underneath each complete segment thus bolted up
we arrange bearers D having rollers D' mounted therein, upon which the segments
are carried, so that when it is desired to withdraw one segment or the whole of the
segments for examination or for cleaning, the same may readily be accomplished by
drawing out the coil over the rollers upon which it is resting. Similarly in building
up the complete nest or battery when one complete coil has been erected, it can be

page_text: coupled up to another and then pushed forward over the bearing rollers into the
interior of the coil chamber E. The shape and configuration of the bearing rollers,.
brackets or base plates D we arrange with a view of securing the greatest amount.
of air space that it is possible to obtain between the coils and the bottom of the
battery chamber.
We cause the air to travel through, or past our heater battery A into the central
flue or chamber F and thence to travel by the flues or uptakes G leading into any
particular portion of the building which it is required to heat or ventilate, any
number of uptakes or flues G being arranged to be fed from the one central.
chamber or flue F as may be desired. From the central chamber or main flue we
provide regulating shutters H for the purpose of shutting off or closing the
entrance to the uptakes G, each uptake or duct G being arranged so that instead
of a warm air supply passing from the warm air main chamber F as shown in.
Figure 4 when the regulating shutter is opened, a cold air supply may be let in
from under the bottom of the warm air chamber, a suitable channel or series of
cold air chambers K K being there provided, cut off from the warm air chamber
by means of concrete or other suitable material slabs or flooring L. The-
shutters H, with the passages G into which they work, we make so that one
movement of the shutter shall control either the delivery of warm air from F,
or cold air from K, or a mixture of both as may be required. Thus when it is.
desired to deliver warm air only we open the shutter H to the full extent as shown
by dotted lines in Figure 4, and by so doing we close the inlet orifice for the cold
air; and when the shutter is placed in the mid position both warm and cold air are-
allowed to pass into the same uptake or duct.
We arrange any ordinary form of shutter H constructed from metal or other
suitable material provided with hinges and pivots, and having regulating and
indicating handles or levers M with chains N, cables or levers for the purpose of
providing full control over the movement of the shutter from any desired position
within the building; and we construct our chambers F, G, K, in such a manner as
to cause the double supply of air or an alternative or mixed supply of hot or cold
to be ensured into any portion of the building which it is intended to ventilate or
heat.
The operating handles M of the shutter may be arranged in the main air duct
or in the room itself. The operation of opening and closing may be performed by
means of a thermostat or other regulator.
We do not limit the application of our improved system of mounting our coils:
and arranging our flues and chambers with regulating shutters to any peculiar type
of beater or form of flue, but we employ any well known coil or heater and any
suitable formn and configuration of flue, when carrying out our improved arrangement
of absolute control and complete inspection system of heating and ventilating, as.
herein before described when mounting our fin duplex coils in combination with the
passages and chambers.
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 construction and arrangement of heating and ventilating appliances in
which a coil or other heating apparatus is employed, having flues, channels or ducts.
which permit of hot or cold, or mixed hot and cold air passing into the flues,.
passages or uptakes substantially as hereinbefore described and as illustrated in the
accompanying drawings.
2. The combination of a heater built up in segments with supporting base plates.
or brackets carrying rollers or pulleys thereon for enabling the heater to be readily
moved in and out of its chamber, substantially as and for the purposes hereinbefore.
described and as illustrated in the accompanying drawings.
3. The construction and arrangement of heating and ventilating chambers and
flues having regulating shutters capable of being controlled by indicating handles.

page_text: placed in positions away from the flues substantially as and for the purposes:
herein before described and as illustrated in the accompanying drawings.
Dated this 3rd day of April 1894.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
and 13, Temple Street, Birmingham, Agents for the Applicants.