Improvements in Chimney Tops or Ventilating Terminals.
Year: 1896

page_text: Date of Application, 21st May, 1896-Accepted, 27th June, 1896
COMPLETE SPECIFICATION.
Improvements in Chimney Tops or Ventilating Terminals.
We RICHARD ASPDEN of Sharn Hall, Church, in the County of Lancaster,.
Mason and Builder, and JOSEPH HAWORTH of Church Hall Church in the County
of Lancaster 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:-
This invention has for its object a revolving chimney top or ventilating terminal,
which shall always discharge smoke or gasses into the atmosphere without wind or
rain being able to get down it, thereby avoiding back draught, it being arranged
so that the wind acting upon a vane on the hood always turns the opening away from
the wind. The wind will also help to draw the smoke or gasses out of the discharge
opening.
It is also designed so that for chimneys there will be no obstruction and that.
it can be swept or cleaned out with the ordinary brushes as used for chimney
sweeping.
The invention consists of providing an elevated spindle upon which revolves the
bood or terminal, the aforesaid spindle being of such length as to provide sufficient.
bearing or support to carry the hood or terminal. This spindle is fixed upon a kind
of tripod stand by means of bolts, rivets, or it may be welded to, and form part of
the aforesaid tripod stand. This stand may have any number of legs the lower
parts being fastened to the end of fixed flue pipe or ventilating tube.
The revolving hood or cowl has fixed upon it a long flanged tube, which revolves
upon the aforesaid elevated spindle, at the highest point of this tube we provide
an oil cup for lubricating the spindle, and at the lowest point we also provide an
oil dish to catch the oil which may flow down the spindle and retain the same to
lubricate the lower bearing part of the aforesaid spindle. This hood or cowl has
fixed upon it the usual style of wind vane, so that the wind may act upon it and
keep it with its discharge opening always away from the wind.
In order that our invention may be fully understood and carried into effect, we
will now more particularly describe it, reference being had to the accompanying
sheet of drawings in which
Fig. 1, is a sectional elevation of our improved chimney top, or ventilating
terminal.
Fig. 2, is a plan of the same the top portion of hood being removed.
Fig. 3, is a front elevation of the same.
In these figures A is the flue tube or ventilating shaft delivering smoke or gases
directly upwards into the atmosphere B is a revolving hood or terminal to turn the
smoke or gases into a more horizontal direction.
C is the elevated spindle upcn which revolves the hood or terminal this spindle-
is carried upon the top of the tripod stand D and may be as shown part of the
same or it may be built up and fastened together with rivets, or bolts, as may be
desired. E is a tube which revolves upon the elevated spindle C this tube
having a flange G to which is fastened the hood B. As the hood revolves along
with the aforesaid tube by means of the wind impinging against the vane F, it will
be thus seen that the wind will always keep the delivery opening of the hood B.
away from the wind, and thus avoid down draught.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what we
claim is
First. The improvement in revolving chimney tops or ventilating terminals
which consists of an elevated spindle of sufficient length to support and keep in
position the hood which revolves upon it, also the long tube which revolves upon
the aforesaid spindle.
Second. The general arrangement and combination of parts forming our
improved chimney top or ventilating terminal substantially as herein described and
illustrated by accompanying sheet of drawings.
Dated this 19th day of May 1896.
RICHARD' ASPDEN.
JOSEPH HAWORTH,
Church Hall, Church, Lancashire.