IMPROVE- MENTS IN FUMIGATORS FOR GREENHOUSES AND CONSERVATORIES to be as
Year: 1885

page_text: I WILLIAM DANIEL LUFF of Farnham in the County of Surrey Plumber and
General Whitesmith do hereby declare the nature of my invention for "IMPROVE-
MENTS IN FUMIGATORS FOR GREENHOUSES AND CONSERVATORIES to be as
follows:-
"
1. The form of the container of the material (Tobacco paper or other) to be
consumed in fumigating-this form being a cylinder with a second and smaller
cylinder in the centre of the first, both being perforated-the inner and smaller to
admit the flame to ignite the material for fumigating-the outer perforations being
for the escape of the fumes.
2. It is claimed for this invention that a flat top to the inner cylinder drives the
flame out equally through the surrounding perforations thus igniting at all points
at the same time and securing equal combustion of the material-and a flat solid
top to the larger cylinder prevents a flare upward, often in existing fumigators a
source of danger to plants over-Also that the sides of the "container" being
perpendicular the material falls as burnt to ashes to the bottom and not on or
against the centre cylinder so as to stop up the perforations and extinguish
the fire.
3rd The Fumigator is self acting after once being lit.
4. The fire box beneath the cylinders and connected with the centre and smaller
one prevents a flare from the burning materials escaping by the opening of the
door when being carried from place to place, such door not being perforated.
5. The materials do not at any time flare but smoulder to ashes.

page_text: I WILLIAM DANIEL LUFF of Farnham in the County of Surrey Plumber and
General Whitesmith do hereby declare the nature of my invention for IMPROVE-
MENTS IN FUMIGATORS FOR GREENHOUSES AND CONSERVATORIES and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
The Fumigator as improved is a cylinder perforated for a distance of about one
fourth its height from the top having a perforated bottom A A a tripod stand a
hinged lid B B and door C the last three not being perforated It is constructed of
sheet iron or Bessemer steel-A second cylinder D D is fixed perpendicularly in
the centre of the larger one on a diaphragm E E which diaphragm is perforated
the full size of the inner cylinder that the flames may pass up from the fire box
through it and through the perforations in the cylinder to the fumigating material
as indicated by arrows on the sketch-Both diaphragm and inner cylinder are
perforated The lid of the inner cylinder is fixed-The mode of using is this-
The material to be consumed whether tobacco paper or other is placed in the
larger cylinder and all round the inner-The door being opened lighted paper is
inserted The flames rise in the smaller cylinder to the top, by the top are stopped
and driven out all round igniting the fuel equally and at the top As the material
is consumed the ashes fall to the bottom but without clogging the perforations so
that air being freely admitted the fuel burs till all is consumed.
If placed under delicate plants no flare rises as the top is kept closed the smoke
being driven out through the side perforations and if the machine is carried from
one place to another the closed door and lid prevent any flame or flare escaping to
injure persons or plants.
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
1. The form of the container of the material (tobacco paper or other) to be
consumed in fumigating this form being a cylinder with a second and smaller
cylinder in the centre of the first both being perforated the inner and smaller
throughout the whole of its depth the outer about one third of its depth to admit
the flame to ignite the material for fumigating, the outer perforations being for the
escape of the fumes.
2. It is claimed for this invention that a flat top to the inner cylinder drives the
flame out equally through surrounding perforations thus igniting at all points at
the same time and securing equal combustion of the material and a flat solid top to
the larger cylinder prevents a flare upward, often in existing fumigators a source of
danger to plants over Also that the sides of the "container" being perpendicular
the material falls as burnt to ashes to the bottom and not on or against the centre
cylinder so as to stop up the perforations and extinguish the fire.
3. The Fumigator is self acting after once being lit.

page_text: 4. The Fire box beneath the cylinder and connected with the centre and smaller
one prevents a flare from the burning materials escaping by the opening of the
door when being carried from place to place such door not being perforated.
5. The materials do not at any time flare but smoulder to ashes.
Dated this 95th dex of March 1885