IMPROVED ARRANGE- MANTS FOR THE SUPPLY OF FRESH HOT OR COLD AIR OR MIXED HOT AND PROVISIONAL SPATION
Year: 1871

page_text: LETTERS PATENT to Thomas Waller, of 47, Fish Street Hill, in the
City of London, Engineer, for the Invention of "IMPROVED ARRANGE-
MANTS FOR THE SUPPLY OF FRESH HOT OR COLD AIR OR MIXED HOT AND
PROVISIONAL SPECIFICATION left by the said Thomas Waller at the
Office of the Commissioners of Patents, with his Petition, on the
2nd October 1871.
I, THOMAS WALLER, of 47, Fish Street Hill, in the City of London,
5 Engineer, do hereby declare the nature of the said Invention for
"IMPROVED ARRANGEMENTS FOR THE SUPPLY OF FRESH HOT OR COLD AIR :OR
MIXED HOT AND COLD AIR IN INFIRMARIES, HOSPITALS, AND OTHER BUILDINGS,"
to be as follows:—

page_text: range of these pipes conveys heat from a heat generator, and other pipes
or ducts lead cold air from the outer atmosphere either proceeding direct
through an external wall or from the basement of the building, where
a suitable opening for the entrance of cold air can be made.
The com-
municating mouths of the heating ducts and cold air pipes are to be
brought into juxtaposition so as to be capable of being opened and shut
by means of the ventilators patented by me 30th March 1864, No. 790.
The exit of air should be provided for by outlets in the centre of the
ceiling or in other convenient position, such ventilators being ivided
in order to keep up a better current.
In hospitals and infirmaries the openings for supplying air can be
placed near each bed, so that each patient under treatment may be
supplied with air, hot or cold, or moderated in accordance with the
proper treatment of the case, the ventilators being placed under the
control of the proper hospital attendants.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Waller in the Great Seal Patent Office
on the 2nd April 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
WALLER, of 47, Fish Street Hill, in the City of London, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of October, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Thomas Waller, Her special licence that
I, the said Thomas Waller, my executors, administrators, and assigns,
or such others as I, the said Thomas Waller, my executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVED ARRANGEMENTS FOR

page_text: THE SUPPLY OF FRESH HOT OR COLD AIR OR MIXED HOT AND COLD AIR IN
INFIRMARIES, HOSPITALS, OR OTHER BUILDINGS," upon the condition (amongst
others) that I, the said Thomas Waller, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal. Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
Letters Patent
NOW KNOW YE, that I, the said Thomas Waller, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement:—
These improved arrangements consist of a number of pipes, ducts, or
passages applied to the building in a disposition in accordance with the
character of the structure. One range of these pipes conveys heat from
a heat generator or supplier of any convenient or suitable kind (improved
arrangements thereof being hereafter described), and other pipes or
ducts lead (or one other pipe leads) cold air from the outer atmosphere;
the same proceeding either direct through an external wall or from the
basement of the building, where a suitable opening for the entrance of
fresh cold air can be made. The emission mouths of the heat ducts and
cold air pipes are to be brought into juxtaposition, so as to be capable of
being opened and shut by means of the ventilators patented by me under
Letters Patent dated Thirtieth March, One thousand eight hundred and
sixty-four, No. 790, to the Specification of which Letters Patent I
hauche fox

page_text: DESCRIPTION OF THE DRAWINGS AND OF THE PRACTICAL DETAILS OF
THE INVENTION.
In the Drawings, Sheet 1, Fig. 1 (plan), Fig. 2 (transverse section),
Fig. 3 (longitudinal section), Fig. 4 (section at A, B, Fig. 1); Fig. 5
section at C, D, in Fig. 1 is shewn an arrangement of pipes, ducts, and 5
passages for warming and ventilating a hospital or infirmary, but similar
arrangements would apply to any public building.
In this arrangement H denotes a hot air or enlarged heat duct or
receptacle, which can be supplied with heat by hot water pipes / from
any suitable boiler placed in any convenient position, such hot water 1
pipes (h) passing through the said enlarged heat duct (as shown). Or
the heat may be obtained from heated air coming by suitable ducts from
a stove or other heat generator placed in any suitable position in the
building; C denotes the cold or fresh air tubes or ducts which are in
communication with the hot air ducts by means of the passage H* 1
leading into the said fresh air ducts or tubes C, the communication
between the hot and cold air being capable of being shut off by means
of the ventilator or damper (also marked H*), which is the same as the
ventilator patented by me as aforesaid,) and thus double action ventilation
will be obtained, the hot and cold air supply being capable of being 2
opened and shut by one and the same ventilator; E denotes the exit
apparatus for allowing tho vitiated air to pass off. It will be observed
that the ventilators H* are shewn placed near each bed.
When I apply my Invention to private dwelling-houses I sometimes
prefer to adopt the arrangements shewn in the Drawings at Sheets No. 2 2
and 3, where it is represented as applied in connection with open stove
grates of the ordinary appearance, but provided with my improvements
for rendering for my purposes such stove grates more efficient heat
generators and distributors; Fig. 6 (being an elevational view), Fig. 7,
a sectional plan taken at A, B, Fig. 6, and Fig. 8 (sectional plan taken 3
at C, D, Fig. 6), shewing the arrangement to be adopted when the
ventilators are to be placed at **, and Fig. 9 (sectional plan on
line E, G, Fig. 6). In these arrangements the stove grate has at its
back a hot air chamber H, C, and heat pipes or passages connected
therewith, a being a heated box placed immediately behind the fire- 3
grate; b, b, heat ducts which proceed upwards into an upper heat

page_text: box H, C³, so placed in the upper part of the fire-place or beginning of
the chimney that the flames and smoke may pass upwards both in back
and front of it. From this heat box or duct other heat ducts for
conveying heat to the room or place may be carried through the front
of the stove as at Fig. 6 (at the lower grate), or to some required part
of the room, either near to the stove as shewn in Fig. 6 (at the upper
grate), or at a distance therefrom, as shewn in Fig. 6 (• * at the lower
grate), which may sometimes be effected by carrying the heat into a
bed-room or room above that in which the stove is fixed.
Figs. 10 to 17 shew plans and sections of the arrangements above
described for increasing the heating effects of stoves as heat generators
for the purposes of my Invention. The letters above stated denote the
various parts in these Figures. The fresh cold air is to be admitted by
pipes communicating with the outer atmosphere brought through the
wall or under the floor to the point where my duplex ventilator herein-
before described is to be fixed, whereby hot and cold air may be supplied
as required.
The cold air ducts are in these Figures marked C, A. Drawings
Sheet 3 (Figs. 18 to 26) shew the application of my Invention (by
elevations, sections, and plans) to stoves of that kind, form, and arrange-
ment usually known as hot air stoves, wherein the combination of the
duplex ventilator with the stove is specially provided for. In these
Figs. A denotes the grate; B, hot air chamber; C, smoke flue passing
through hot air chamber which surrounds such flue; D, cold air
passages; E shews the application of my duplex ventilator aforesaid to
these stoves, F¹ being a pipe bringing fresh air to stove and provided
with the double ventilator, which is inserted in the heat box so that
heat from the heat box enters this pipe, also cold air from the outer
atmosphere.
Having now particularly described and ascertained the nature of the
said Invention, and in what manner the same is to be performed or
carried out in practice, I hereby declare that I restrict my claim in
respect of the herein-before described improved arrangements aforesaid
to the particular arrangements for accomplishing the objects above
stated, which are shewn by the Drawings and herein-before described

page_text: with reference thereto. But I do not limit myself to the mere forms of
construction shewn by the Drawings or proportions of parts, which I
can vary as circumstances may requiro..
In witness whereof, I, the said Thomas Waller, have hereunto
set my hand and seal, this 30th day of March, in the year of 5
our Lord One thousand eight hundred and seventy-two.
THO. WALLER. (L.S.)
Witness,
T. MORGAN,
"
Secretary,
Inventors' Patent Right Association, Limited,
21, Cockspur Street.
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