Improvements in Ventilators used for Chimneys, Soil Pipes, Drain Pipes, and the like
Year: 1890

page_text: Date of Application, 8th Dec., 1890
Complete Specification Left, 22nd Apr., 1891—Accepted, 23rd May, 1841
PROVISIONAL SPECIFICATION.
Improvements in Ventilators used for Chimneys, Soil Pipes,
Drain Pipes, and the like.
ALFRED CLIFFORD, Claremont House, Hawley Road, near Dartford, Kent,
trading as Plumber and Sanitary Engineer, do hereby the nature of this invention
to be as follows :-
My invention consists of an ordinary louver cap ventilator, which is composed
of several round louvers fitted one upon the other, upon the top and bottom of the
louver caps are fitted my invention which is as follows, above the top louver is
fitted a round ring A, made of hoop iron (or any other metal) which is riveted to
the three uprights E, which support the louvers and bottom ring H, the ring A is
a little larger then the opening of the top louver, within this ring A, a round
flap B, of iron (or any other sheet metal) is fixed upon an hinge C, this flap is to
prevent a direct down draught through louvers and chimney, when the the sweep's
brush is inserted in the chimney it pushes the flap B open and throws it back, so
that the tail end D of flap B rests against one of the uprights E, the piece of
wire which is attached to the flap B, then becomes horizontal and when the
sweep's brush is withdrawn it catches this piece of wire F which draws down the
flap B, and the piece of wire F becomes perpendicular again. The flap B rests upon
a small stop G, or upon the top of the three uprights E, which run through the
louvers. The hinge C, and flap B is formed out of one piece of sheet iron (or any
other metal) and works upon a roun! spindle which is riveted to the ring A, the
flap B, when closed is almost in the centre of ring A, which prevents the wind
blowing it open. The bottom ring H is composed of iron or any other metal
about in. thick or thicker according to size made, it is riveted (or otherwise) on to
the three uprights E, this ring H, is made in various sizes according to ventilators,
and is passed over the top of chimney, by doing so the top of chimney comes in
contact with the three little stops I, which are riveted on to the three uprights E,
this prevents the ventilator from slipping any further over the chimney, the
three screws J, which are tapped into the bottom ring H, are then screwed firmly
against the chimney which keeps the ventilator in its place, the ventilator is made
of any kind of metal especially zinc and galvanized iron, it is a great and novel
improvement on the ordinary fixing of ventilators to chimneys, soil pipes & such
like, and preventing down draught and smoke, and very easy to clean although the
top is closed against down draught the brush can be passed clean through and
withdrawn.
Dated this 6th day of December 1900
ALFRED CLIFFORD.
COMPLETE SPECIFICATION.
Improvements in Ventilators used for Chimneys, Soil Pipes,
Drain Pipes, and the like.
Alfred CliffORD Claremont House Hawley Road, near Dartford Kent,
trading as Plumber and Sanitary Engineer, 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 consists of an ordinary louver cap ventilator, which is composed of
several round louver caps fitted one upon the other, upon the top and bottom of the
louver caps, are fitted my invention which is as follows, referring to the drawings
left with the Provisional Specifications.

page_text: Above the top louver is fitted a round ring A', made of hoop iron (or any other
metal) which is riveted to the three uprights E2, 3, 4, which support the louvers
and bottom ring H³, the ring A' is a little larger then the opening of top louver,
within this ring a round flap B, of iron (or any other metal) is fixed upon a
hinge C', this flap is to prevent a direct down draught through louvers and
chimney, when the sweep's brush is inserted in the chimney it pushes the flap B
open, and throws it back so that the tail end D³ of flap, B°, rests against one of the
uprights E, the piece of wire F which is attached to the flap B, then becomes
h rizontal and when the sweep's brush is withdrawn it catches this piece of wire F',
which draws down the flap 16, and the piece of wire F becomes perpendicular
again.
"
The flap B rests upon a small stop G₁, or upon the top of the three up-
rights E', 8 4 which run through the louvers, the hinge C', and flap B6, are formed
out of one piece of metal and works upon a round spindle which is riveted to the
ring A', the flap Bo, when closed is almost in the centre of ring A', which prevents
the wind blowing it open. The bottom ring H is composed of iron (or any other
metal) about in. thick or thicker according to size made, it is riveted (or other-
wise) on to the three uprights E2,3,4, this ring H, is made in various sizes
according to ventilator, and is passed over the top of chimney, by doing so, the
top of chimney comes in contact with the three little stops I, which are riveted on
to the three uprights E3, 3, this prevents the ventilator from slipping any further
over the chimney, the three screws J, which are tapped into the bottom ring H³,
are then screwed firmly against the chimney which keeps the ventilator in its
place. The ventilator is made of any kind of metal especially zinc and galvanized
iron, it is a great and novel improvement on the ordinary fixing of ventilators to
chimneys, soil pipes, & such like, and preventing smoke and down draught, also
very easy to clean although the top is closed against down draught, the brush can
be passed clean through and withdrawn.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is, referring to the drawings left with the Provisional Specifications.
The three uprights E2, 3, 4, made of hoop iron or any other metal, and attached to
the louvers, top ring A', and bottom ring H³, which are also made of hoop iron and
such like, also flap B, which is made of sheet iron or any other metal, complete with
hinge C, tail piece DB, and wire (or any other metal) lever F, which opens and
closes with the sweep's brush when inserted through ring A', also the bottom
ring H, with the three screws J12, tapped into same, which screw tight against
chimney and such like when fixed, also the three little stops I", which are attached
to the three uprights E2, 3, 4, to prevent the ventilator slipping too far over
chimneys soil pipes & such like, also the small stop G10, which is attached to
ring A, for the flap B, to rest upon when closed and everything connected with
the ventilator as shown on drawings and described in Specifications.
,,
Dated this 21st day of April 1891.
ALFRED CLIFFORD.