IMPROVEMENTS IN CHIMNEYS AND FIRE-PLACES, AND IN VENTILATING APPLIANCES TO BE USED IN CONNECTION THEREWITH
Year: 1872

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine,
Lake, & Co., Patent Agents, Southampton Buildings, London, for
the Invention of "IMPROVEMENTS IN CHIMNEYS AND FIRE-PLACES, AND
IN VENTILATING APPLIANCES TO BE USED IN CONNECTION THEREWITH."—A
communication from abroad by Johnson Briggs, of Toronto,
Canada.
COMPLETE SPECIFICATION filed by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition
and Declaration, on the 14th September 1872, pursuant to the 9th
Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London, send greeting.
COMPLETE SPECIFICATION filed by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition
and Declaration, on the 14th September 1872, pursuant to the 9th
Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS
IN CHIMNEYS AND FIRE-PLACES, AND IN VENTILATING APPLIANCES TO BE USED

page_text: F
.
heat of the fire baskets, a system of pipes connects therewith and
extends throughout the building for heating it, by either steam or hot ·
water, or it may be heated by hot air if desired. The fire baskets C are
so constructed and fitted to or in their respective recesses, that by means
of a lever they may be partially revolved horizontally, to shake the ashes
accumulating therein, for cleaning the grate.
D is a flue of cast iron or other metal branching from the main
trunk A to form the chimney for another apartment, and any number
of these branches may be employed and lead from the main trunk at
any suitable point in any required direction. To the main trunk (and
branch flues when these are used) are connected ventilating shafts E,
by means of which foul air from an apartment is conveyed into the
chimney flue on entering the shaft by the registers. These ventilating
shafts pass upward through the floor before entering the chimney. The
6 course of the foul air is shown in the Drawing by the arrows; F, F,
are dampers inserted in the flues where required to cut off and direct
the heat and smoke.from, and to any desired flue. These dampers are
constructed with a wing G secured to a shaft, so that by giving the shaft
a quarter revolution the wing closes the flue and is retained in that
position by a square shoulder on the shaft, engaging with a corre
sponding recess in its bearings when pushed slightly inward... When
the said square shoulder is withdrawn from its recess the wing drops to
the side of the flue in a perpendicular position, and allows the heat and
smoke to ascend.
The main trunk and branch flues are provided at suitable positions
with holes H, to which a stove pipe may be connected when the
additional heating power of a stove is required in any of the apartments..
When the main trunk or connecting branche's pass through floors I or
wooden partitions J, a brick casing K is provided on each side, as shown,
or a jacket of sheet tin may be employed to shield the combustiblo
material from the heat of the chimney. The main trunk and branch
flues may be inserted flush with the face of the partition, or project
therefrom to any suitable distance. The heat passing through the flues
is by this Invention utilized for heating the apartment or carriage by
being diffused through the metal chimney, a large amount of heating
surface being thus exposed in the apartment.
"
The main trunk may be carried up at the intersection of two
partitions, and thus four fire-places can be combined in the base B,

page_text: so that one fire basket O may be provided for each of the four apart-
ments, the base B being arranged anglewise at the corner of each
room.
L are tight fitting doors inserted in the trunk or branches, by which
ready access may be gained thereto to permit the flues to be swept by a 5
drop rope, weight, and brush moved up and down therein.
As shown in the Drawing the main trunk passes up through two
floors, but it may be carried up either with or without branches through
any number of succeeding floors in a like manner, and may terminate
above the roof of the building in a suitable ornamental cap. The 1
Drawing shows a double trunk, but it is obvious that a single trunk
will serve, when a double one from the nature of the circumstances
is not required. The fire-places may be furnished with the ordinary
mantel pieces.
M, Figures 5 and 6, is a ventilating shaft of cast iron or other suitable 1
metal bolted to the rear of the main or trunk shaft N, which it enters
above the fire-place; it descends into the room below to carry off the
vitiated air therefrom into the chimney. The shaft M is provided with
a register O, it may extend to the outside of the building and be
furnished with a damper P, and lower register Q, so that the fresh cold 2
air may enter the apartment if required, to afterwards pass off through
the register O, thus ventilating the room.
•
In Figure 7 the fire-place or grate is shown provided with doors R
hinged thereto; these doors may fold back into a recess, or may slide
laterally into a channel at the sides, or they may move vertically, so 2
that by closing the doors the draught is carried through the fire basket
to facilitate combustion.
Having thus fully described the said Invention as communicated to me
by my foreign correspondent, and the manner of performing the same,
I wish it understood that I claim,―
First. The sectional metallic chimney A, branches D, and ventilating
shafts E, arranged and operating as described, in combination with
dampers F, G, of any suitable construction.
Second. The ventilating shaft E forming a guard and air space
between the chimney and the floor or ceiling and arranged to take .

page_text: vitiated air from the room and deliver it into the chimney at a higher
level, substantially as and for the purposes herein specified.
Third. The combination of the basket grates C with the water back B,
having recesses concentric with the said grates to adapt the latter to be
shaken on a vertical axis, as specified.
Fourth. The combination of a cast iron or other metal chimney A,
base B, and ventilating shaft E, substantially in the manner and for the
purpose specified. ··
Fifth. The combination of a chimney N, and ventilating shaft M,
arranged substantially in the manner set forth for the purpose specified.
Sixth. The application to the fire-grates constructed as described, of
'doors R, to fold or slide, in the manner specified..
In witness whereof, I, the said William Robert Lake, have here-
unto set my hand and seal, this Fourteenth day of September,
in the year of our Lord One thousand eight hundred and
seventy-two.
Witness,
OHAS. J. GooCH.
W. ROB³. LAKE. .(L.S.).