A New or Improved Chimney Can.
Year: 1892

page_text: Date of Application, 13th Dec., 1892
Complete Specification Left, 13th Sept., 1893-Accepted, 14th Oct., 1893
PROVISIONAL SPECIFICATION.
A New or Improved Chimney Can.
JOHN SCOTT of the Finnieston Saw Mills West Greenhill Place, Glasgow, in
the County of Larnark North Britain, Wood Merchant do hereby declare the
nature of this invention to be as follows:-
This invention which relates to a new or improved chimney can, consists of a
revolving can having a cylindrical or quadrangular configuration, and provided with
openings at the sides thereof preferably two in number. Corresponding to the
number of openings are hinged baffle or louvre plates, inverted; pivoted to the
sides of the can, in juxtaposition to each other, and connected one to the other by
a transverse connecting rod or link. The length and position of the rod or link is
such that one only of the baffle plates or doors can be open at a time, and that
in the contrary direction to which the wind is blowing. The opening and closing
of the baffle plates or doors is controlled by the wind. It is here explained that
these baffle plates or doors open vertically downwards. The opening so formed
being an arc of any suitable radius.
The top of the can is contracted by a horizontal baffle plate, preferably of
diamond shape.
Dated at Glasgow this 1st day of December 1892.
D. DRYSDALE AUSTIN,
Applicant's Agent.
COMPLETE SPECIFICATION.
A New or Improved Chimney Can.
JOHN SCOTT of the Finnieston Saw Mills, West Greenhill Place, Glasgow in the
County of Lanark North Britain, Wood Merchant 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 relates to a new or improved chimney can, which will be more
durable and efficient than any hitherto in use.
in which
My invention is illustrated in the accompanying sheet of explanatory drawings,
Figure 1 is a side elevation, Figure 2 a sectional side elevation at right angles
to Figure 1, and Figure 3 being a plan.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
The can is composed of a stationary pipe A, of metal or other material, the top
of which is rectangular, in horizontal section, and tapering into a cylindrical form
at the base; or the pipe A may be made in two pieces, the upper piece being so
constructed, that it can revolve on the lower piece. The upper part of the pipe A
is made with openings C at the sides preferably two in number; and corresponding
to the openings C are baffle or louvre plates or doors D; hinged at their lower
ends to the pipe A, which forms the can. These doors are connected in pairs by a
rod or link E, in such a manner that only one door can be open at a time. The
opening and closing of the doors being controlled by the wind, the door facing the
wind will always be closed, the other door open. The top of the can is closed by
a baffle plate of any suitable shape.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same may be performed, I declare that what I
claim is ;
First. The combination and arrangement of the parts, hereinbefore described,
constituting my improved chimney can, with reference to the accompanying
drawings.
Second. The arrangement and construction of the hinged doors and connecting
link substantially as described, with reference to the accompanying drawings.
Dated this 12th day of September 1893 year.
D. DRYSDALE AUSTIN,
Applicant's Agent.