Year: 1886

page_text: Date of Application, 24th Mar., 1886.
Complete Left, 22nd Dec., 1886.
Complete Accepted, 25th Jan., 1887.
SAMUEL BRASSINGTON BAMFORD of the Firm of Henry Bamford & Sons Agri-
cultural Engineers Uttoxeter, Staffordshire, do hereby declare the nature of the
invention for CHIMNEY TOPs to be as follows:-
This invention relates to an improved form of Chimney Top, which has a clear
passage through for smoke and sweeps brush, and has also a Vane with an outer
rotating Jacket arranged so that in whatever direction the wind is, it produces an
upward current of air in the chimney.
But as the ordinary Lobster Cowl after a calm, and when the wind suddenly rises
in the opposite direction allows it to blow down the Chimney. My chimney top
having no cowl is free from this defect.
I carry out my improvements as follows:-
-
The Chimney top consists of a cylindrical tube on the top of which is fixed by 2 or
more stays a short perpendicular rod, having a conical point or centre on its upper
extremity. On this is fitted a socket which is free to rotate, and which has connected
to it a Vane and a Jacket extending downwards as far as may be necessary, and
encaseing the Chimney top. The upper portion of the Jacket is made to fit loosely round
the Chimney top, so that it will just revolve without touching. The lower part is
preferably made wider, but is reduced at the bottom to fit loosely and revolve on the
body of the Chimney top, and is kept from rubbing on it by 3 or more friction rollers.
A little above these on the body of the Chimney top, several taper apertures or slits
are made, through which an upward current of air can pass upwards into the flue.
On the outer caseing on that side exposed to the wind, is made a vertical opening.
The Vane keeps this opening to the wind which enters therein and circulates in the
annular space between the outer caseing and the body of the Chimney top, from this it
can pass out only by going through the slits upwards into the flue which it does and
causes an upward current, thus accelerating the draught.
SAMUEL BRASSINGTON BAMFORD.

page_text: SAMUEL BRASSINGTON BAMFORD of the Firm of Henry Bamford & Sons Agri
cultural Engineers, Uttoxeter, Staffordshire do hereby declare the nature of the
invention for CHIMNEY TOPS 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 an improved form of Chimney top, which has a clear
passage through for smoke and sweeps brush, and has also a Vane with an 'onter
rotating Jacket arranged so that in whatever direction the the wind is, it produces an
upward current of air in the chimney.
But as the ordinary Lobster Cowl after a calm, and when the wind suddenly rises
in the opposite direction allows it to blow down the chimney, my chimney top having
no cowl is free from this defect.
I carry out my improvement as follows:-
The Chimney top consists of a cylindrical tube on the top of which is fixed by 2 or
more stays a short perpendicular rod having a conical point or centre on its upper
extremity. On this is fitted a socket which is free to rotate, and which has connected
to it a Vane and a Jacket extending downwards as far as may be necessary, and
encasing the chimney top. The upper portion of the Jacket is made to fit loosely
round the chimney top so that it will just revolve without touching. The lower part
is preferably made wider, but is reduced at the bottom to fit loosely and revolve on
the body of the chimney top, and is kept from rubbing on it by 3 or more friction
rollers.
A little above these on the body of the Chimney top several taper apertures or slits
are made, through which an upward current of air can pass upwards into the flue.
On the outer caseing on that side exposed to the wind is made a vertical opening.
The Vane keeps this opening to the wind which enters therein and circulates in the
annular space between the outer caseing and the body of the chimney top, from this it
can only pass out by going through the slits upwards into the flue which it does, and
causes an upward current, thus accelerating the draught.
In the drawings Fig. 1 shews an elevation of a chimney top constructed according
to my invention and Fig. 2 a section of the same.
A is a cylindrical tube on the top of which is fixed by two or more stays B B. a
short perpendicular rod C having a conical point or centre at its upper extremity D.
On this is fitted a socket which is free to rotate and which has connected to it a Vane E
and a Jacket F extending downwards and encaseing the cylindrical tube A.
The upper portion of the Jacket is made to fit looseley round the tube A at G so
that it will just revolve without touching. The lower part is preferably made wider
but is reduced at the bottom to fit loosely and revolve at H on the tube A and is kept
from rubbing on it by three or more friction rollers J. J.
A little above these on the body of the tube A several apertures K K or slits are
made through which an upward current of air can pass upwards into the flue.

page_text: A tapered rim L is put over these to more effectually guide the air currents in a
vertical direction.
On the outer caseing F on that side exposed to the wind is made a vertical
opening M. The vane E keeps this opening to the wind, which enters therein and
circulates in the annular space N between the outer caseing F and the cylindrical
tube A, from this it can only pass out by going underneath the tapered rim L through
the slits K K and upwards into the flue, which it does and causes an upward current
in the flue, thus accelerating the draught.
Having thus set forth the nature of my invention of Improvements in chimney tops,
I wish it to be understood that I claim :-
The general arrangement and construction of chimney tops as hereinbefore described
and substantially as shewn in the annexed drawings.
SAMUEL BRASSINGTON BAMFORD.