Improvements in and relating to Chimney Cowls.
Year: 1892

page_text: Date of Application, 20th Dec., 1892
Complete Specification Left, 20th Sept., 1893-Accepted, 21st Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Chimney Cowls.
I, JOHN SUTTON, of Boroughbury, Peterborough, Builder, do hereby declare the
nature of this invention to be as follows:-
My invention relates to improvements in chimney cowls, and has for its object the
prevention of rain, snow, &c., from entering the chimney; and also to prevent
down draughts in chimneys.
In accordance with my invention I form a cowl proper of zinc, tin, or any other
suitable material and of any formation preferably rectangular in cross section.
Upon two sides of the cowl are mounted in suitable brackets two or more flaps
or wing pieces, working in slots cut in the sides of saine, the said flaps are inclined
at an angle of 45° when at rest.
These flaps or wing pieces are joined together by means of single "lazy tongs'
so as to be able to work same from either the top or the bottom of the cowl-
proper as may be desired. Suitable stops are placed inside the cowl-proper so as
to prevent the flaps or wing pieces from falling beyond their proper angle.
At the bottom of the cowl-proper I mount a roller over which a chain or rope
passes, one end of same has attached thereto a ball or block while the other end is
passed down the chimney and is hung near the fire-place.
A chimney cowl constructed in accordance with my invention is operated in the
following manner :-Supposing the flaps or wing pieces are to be cleaned, the chain
is pulled down, which presses the ball or block above referred to, against the
bottom flap and imparts to same as well as to the others a rocking motion.
Rain, snow etc. .cannot enter the cowl proper, as the flaps or wing pieces are
placed at an angle which causes the rain etc. to traverse the exterior of the flaps
and drip off outside the cowl. The like feature of advantage by the use of the
vibrating flaps aforesaid, applies as regards the prevention of down draughts.
Dated this 10th dow of Donambar 1802
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holboru, London, W.C.,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Chimney Cowls.
I, JOHN SUTTON, of Boroughbury, Peterborough, Builder, 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:-
My invention relates to improvements in chimney cowls, and has for its object the
prevention of rain, snow, &c. from entering the chimney; and also to prevent down
draughts in chimneys.
And in order that this my invention may be fully understood I will describe same
with reference to the accompanying drawings and to the letters and figures of
reference marked thereon; that is to say:-
Figure 1. is a front sectional elevation, and Figure 2 a side elevational view
(partly in section).
In accordance with my invention I form a cowl proper a of zinc, tin, or other
suitable metal or material, and of any shape or configuration, but preferably
rectangular in cross section.
Upon two sides of the cowl a are mounted in suitable brackets two or more flaps
DO; 1

page_text: or wing pieces b working in slots cut in the sides of same, the said flaps being
inclined at an angle of 45° when at rest.
These flaps or wing pieces b. are in connection_one with another by means of
single lazy tongs c so that the whole may be worked from either the top or the
bottom of the cowl proper as may be desired.
At the bottom of the cowl a I mount in suitable bearings a roller d over which
passes a chain or rope e the ends of same passing down to the fireplace. In
suitable positions upon the chain e are attached balls, blocks, or brushes, so that
when the flaps b require cleaning the operator pulls one end of the chain which
presses said balls, blocks, or brushes, f against the bottom flap and imparts to same
as well as to the others a rocking motion. The other end of the chain is then pulled
with similar results, and so on until the operation is completed.
A modification of the arrangement of balls or brushes is shewn separately in
Figure 3 of the drawings, in which a series of balls g g g are shewn attachable to,
and detachable from, the chain e by being supported thereon by the hook and eye
attachments h h. The balls 9 are connected together by the three chains i which,
in operation, pass over the roller d the balls 9 themselves travelling in the guide
groove d' of the roller.
A brush for sweeping purposes may be attached to each
or either of the balls g if desired. On the drawing it is shewn as being applied to
the lowermost ball as being preferable in most cases.
As a safeguard against birds building nests in the cowl when not in use, I cover
the slots above referred to, and the top of the cowl with wire netting or like
inaterial.
Rain or snow cannot enter the chimney as the flaps or wing pieces are placed
at an angle which causes all water &c. entering at the top of the cowl to traverse
the exterior of the flaps and drip off outside the cowl. The like feature of advantage,
by the use of the vibrating flaps aforesaid, applies as regards the prevention of
down draught, it being impossible for the wind to blow down the chimney when the
flaps are placed at the angle as before described.
not in
The cowl constructed in accordance with this invention is equally applicable
as a ventilating medium in rooms, halls, and the like when fires are
operation.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The improvements in, and relating to, chimney cowls, substantially as and for
the purposes herein before described and shewn in the accompanying drawings.
2. In chimney cowls the flaps or wing pieces b, tongs c, roller d, chains e, and i
and balls, blocks, or brushes f g k, arranged and operating substantially as and for
the purposes herein before described and shewn.
Dated the 20th day of September 1893.
JAMES STEVENSON,
20, High Holborn, W.C., Agent for Applicant.