Chimney and Ventilator Hood for Fixing on the Outsides of Chimneys, Ventilators, and the like.
Year: 1894

page_text: Date of Application, 18th July, 1894
Complete Specification Left, 13th Apr., 1895-Accepted, 18th July, 1895
PROVISIONAL SPECIFICATION.
Chimney and Ventilator Hood for Fixing on the Outsides of
Chimneys, Ventilators, and the like.
:―
EDWARD WHITE ASTLE 3, Exeter Street, Derby Hot Water Engineer
CHARLES ERSKINE TERRY-TERRY, Castle Hill, Duffield, Derby Designer and
Wood Engraver, do hereby declare the nature of this invention to be as follows :-
A chimney and ventilator hood for fixing on the outsides of chimneys ventilators,
and the like, constructed in eight parts-1. a flat ornamental copper plate or disc,
2. a blocked copper cone, 3 an iron support, 4. a bush of copper, brass, iron or
8 a cross har or clip.
steel 5 6 & 7. a vane with shaped tail, and connecting rod
The copper cone is rivetted to the under side of plate or disc, the bush is secured
to the vane, and the whole fastened together by two small bolts. The plate or
disc is placed horizontally over the chimney or ventilator and turns with the wind,
from an eccentric point near to the tail of vane, on the iron support, which passes
through the cone, bush and plate or disc, the support is tapped into the cross bar or
clip which secures the whole to chimney or ventilator top. May be made with or
without cone, any size, of copper, brass, steel iron or any suitable metal.
of Tul 1894
EDWARD WHITE ASTLE.
CHARLES ERSKINE TERRY-TERRY.
Chimney and Ventilator Hood for Fixing on the Outsides of
Chimneys, Ventilators, and the like.
EDWARD WHITE ASTLE Hot Water Engineer 3 Exeter Street Derby and
CHARLES ERSKINE TERRY-TERRY Designer &c. Castle Hill Duffield 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 :--
The object of our invention is to prevent downdraught in chimneys, ventilating-
shafts and the like and to induce an up-draught or current of air therein.
Referring to the accompanying sheets of drawings which form a part of this
Specification
Figure 1 is a plan of our improved device.
Figure 2 is a side elevation and Figure 3 is a longitudinal sectional elevation of
the same.
In carrying out our invention we provide any suitable framework such as A. to be
secured to the top of the chimney or shaft B, to this framework and over the
centre of the chimney or shaft is fixed a vertical pin C upon which is free to
revolve a sleeve D provided with a bush E at its lower end, which forms a bearing
for, and is secured to the vertex of the inverted cone F, the upper part of this
sleeve is screwed into a plate G, the base of the inverted cone being also secured
to the underside thereof, a vane H is provided and secured to the plate G, the said

page_text: plate being set eccentrically on the pin C-I so that whichever way the wind blows
the device will be free to revolve on the pin C and offer as little resistance as
possible to the said wind, and by its peculiar shape prevent any downdraught and
induce an up current in the chimney or shaft; the pin C will be provided with any
suitable projection, shoulder or stop I at the top, and it will be evident that any
suitable bearing may be provided thereon for the said sleeve to revolve upon without
departing from the spirit of our invention.
The different parts of our improved apparatus or device may be made of any
metal or material best adapted for their respective purposes.
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 :-
==
The improved device having any suitable framework A or means of attachment
to the chimney or ventilating shaft B, with vertical pin C-I in combination with
a device free to revolve thereon consisting of sleeve D with bush E, inverted
cone F, plate G and vane H substantially as and for the purposes described and
illustrated.
Dated this 16th day of July 1895