Improvements in Chimney Cowls and Ventilators.
Year: 1893

page_text: Date of Application, 3rd May, 1893
Complete Specification Left, 23rd Jan., 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Chimney Cowls and Ventilators.
I, JAMES HACKING of 4 and 6 Redearth Road, Darwen in the County of
Lancaster, Tin Plate Worker do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in chimney cowls, smoke jacks, and
ventilators, the object being to dispense with the ordinary internal spindle on which
the cowl revolves, and to so mount the cowl that there is no obstruction in the
interior of the cowl but a free passage is left for smoke, air and the ordinary brush
when sweeping a chimney to which the improved cowl is applied.
According to this invention I construct the cowl, and shaft as ordinary, but in
lieu of mounting the cowl on a centre spindle, I fix by set screws or bolts, the cowl
to brackets forming part of an aunular ring which latter is supported by three or
more anti-friction runners resting in a circular trough of oil at the top of
the shaft.
Fixed inside the cowl is a ring or flange which when the cowl is in position
covers the trough of oil and prevents dirt or dust getting therein. When used as
a chimney cowl, or smoke jack the cowl is made shorter than usual or less curved
so as to allow of the passage of the ordinary sweeping brush.
A vane is placed on the side of the cowl to maintain it in correct position with
the direction of the prevailing wind.
Dated this 1st day of May 1893.
WALTER BRIERLEY,
Penny Bank Chambers, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Chimney Cowls and Ventilators.
1, JAMES HACKING of 4 and 6 Redearth Road, Darwen, in the County of
Lancaster, Tin Plate Worker, 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 improvements in chimney cowls, smoke jacks, and
ventilators, the object being to dispense with the ordinary internal spindle on which
the cowl revolves, and to so mount the cowl that there is no obstruction in the
interior of the cowl, but a free passage is left for smoke, air, and the ordinary brush
when sweeping a chimney to which the improved cowl is applied.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings
in which
Fig. 1 is a view in elevation of a ventilator made in accordance with this
invention.
Fig. 2 is a view in elevation of a chimney cowl, made in accordance with this
invention.
Fig. 3 is a sectional elevation of the interior of part of a chimney cowl or
ventilator, shewing the improved method of mounting the cowl or upper part of
the ventilator.

page_text: According to this invention I construct the cowl 1 and shaft 2 as ordinary, but in
lieu of mounting the cowl 1 on a centre spindle, I fix the cowl 1 by set screws or
bolts 3 and brackets 4, to brackets 5 forming part of or bolted to an annular ring 6,
which latter is supported by three or more anti-friction runners 7 resting in a
circular trough 8 of oil, at the top of the shaft 2. Fixed inside the cowl 1 is a
flanged ring 9 which when the cowl 1 is in position, covers the trough 8 of oil, and
prevents dirt or dust getting therein. When used as a chimney cowl, or smoke
jack (see Fig. 2) the cowl 1 is made shorter than usual, or less curved, so as to
allow of the passage of the ordinary sweeping brush as shewn.
A vane 10 is placed on the side of the cowl 1, to maintain it in correct position
with the direction of the prevailing wind.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The improvements in ventilators, or chimney cowls, wherein the internal spindle
and its fittings are dispensed with and the cowl or upper part of the ventilator is
carried on runners rotating in a trough of oil as and for the purpose herein
described and substantially as illustrated by the accompanying drawings.
Dated thin oond doof new 1904
JAMES HACKING,
By his Agent, Walter Brierley,
Penny Bank Chambers, Halifax.