smould or oïdium thereon.
Year: 1885

page_text: I, GEORGE WASHINGTON DAVIS of Albion Wharf Maidstone in the County of
Kent Inventor and Manufacturer of Davis's Mould Killer do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in machines employed for dressing hops
vines fruit and other trees with fine powders sulphur or other materials used for
destroying insects "mould or oïdium thereon.
"
The machines hitherto used for this purpose discharge the sulphur or insect
destroying powder at such a height above the ground that much of it is carried
away without taking effect the lower part of the hop or vines deriving no benefit.
Now the object of part of my improvements is so to arrange the discharge orifices
that the powder is applied both to the upper and lower parts of the hops or vines.
The machinery or apparatus is also so arranged that the discharge of the powder
can be regulated and discharged simultaneously from all the outlet passages or so
that part of them can be regulated or closed as desired.
In carrying out my improvements I so arrange the fan that the air is driven
through an air passage arranged below the frame and underneath the bottom of the
hopper and delivery therefrom.
From the point where the powder falls into the air passage it is conducted into
a double passage to the two lower discharging orifices which turn outwards at an
angle one to the right and the other to the left. Movable flaps or doors are
mounted upon an axis in the air passages which can be moved by a lever and
handle so as to direct the air and powder either to the right or left.
The air and delivery passages are carried upwards to two other discharge orifices
also arranged at an angle right and left. These outlets can be governed by doors

page_text: or flaps so as to regulate the size of the discharge orifices and one or other of them
can be closed when required so as to discharge all the powder either to the right
or to the left.
By opening or closing a flap or door mounted upon an axis in the air passage the
air and powder can be discharged either through the upper or lower discharging
orifices.
In place of using a brush or roller for regulating the delivery or feed from the
hopper I find it advantageous to employ a pair of toothed rollers which serve to
regulate the feed and delivery and also to break up any lumps contained in the
powder.

page_text: Fruit and other Trees with Fine Powder for Destroying
Insects, Mould, or Oïdium.
I GEORGE WASHINGTON DAVIS of Albion Wharf, Maidstone in the County of
Kent Inventor and Manufacturer of Davis's Mould Killer 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 machines employed for dressing hops,
vines, fruit and other trees with fine powders sulphur or other materials used for
destroying insects mould or oïdium thereon.
The machines hitherto used for this purpose discharge the sulphur or insect
destroying powder at such a height above the ground that much of it is carried
away without taking effect, the lower part of the hop or vines deriving no benefit.
Now the object of part of my improvements is so to arrange the discharge orifices
that the powder is applied both to the upper and lower parts of the hops vines
fruit or other trees.
The machinery or apparatus is also so arranged that the discharge of the powder
can be regulated and discharged simultaneously from all the outlet passages or so
that part of them can be regulated or closed as desired.
In carrying out my improvements I so arrange the fan that the air is driven
through an air passage arranged below the frame and underneath the bottom of the
hopper and delivery therefrom.
From the point where the powder falls into the air passage it is conducted into
a double passage to the two lower discharging orifices which turn outwards at an
angle one to the right and the other to the left. Moveable flaps or doors are
mounted upon an axis in the air passages which can be moved by a lever and
handle so as to direct the air and powder either to the right or left.
The air and delivery passages may also be carried upwards (with a division
plate down the centre) to two other discharge orifices also arranged at an angle
right and left. These outlets can be governed by doors or flaps so as to regulate
the size of the discharge orifices and one or other of them can be closed when
required so as to discharge all the powder either to the right or to the left.
By opening or closing a flap or door mounted upon an axis in the air passage,
the air and powder can be discharged either through the upper or lower discharging
orifices.
In place of using a brush or roller for regulating the delivery or feed from the
hopper I find it advantageous to employ a pair of toothed rollers which serve to
regulate the feed and delivery and also to break up any lumps contained.in the
powder.
And in order that my invention may be clearly understood and readily carried
into practice I will proceed to describe the apparatus with reference to the accom-
panying drawings.

page_text: DESCRIPTION OF THE DRAWINGS.
Figures 1 and 2 are opposite side elevations of my improved machine. Figure 3
is a longitudinal section of part of the machine shewing the feeding apparatus
and air blast passages. Figure 4 is a front elevation of the delivery orifices and
Figure 5 a back elevation of delivery apparatus with the back plate removed
therefrom. In these figures a, a, is the framing of the machine carrying the
axis b. 6161 are the supporting wheels carried by this axis. c is the hopper to
contain the sulphur or other powder it is desired to use. d is a fan creating a blast
for the purpose of applying the powder used to the hops vines or other plants it is
desired to dress. At one side of the machine and carried by the axis b is a toothed
wheel e driving a pinion fl on the axis f; on the opposite end of this axis is the
pulley g which by a belt g¹ gives motion to the pulley h¹ on the axis h of the fan.
On the opposite side of the machine and carried by the axis is a toothed wheel i
which gears with another toothed pinion 2 mounted on the toothed roller ¹. This
is for the purpose of breaking any lumps and securing a uniform flow of material
to the feeding roller k. This roller is formed of a number of toothed discs and is
carried by the axis b.
are adjustable slide gates for the purpose of regulating the quantity of
material to be supplied from the hopper to the feeding roller k and then to the air
passage by the delivery therefrom. The slide gates are opened and closed simul-
taneously by the lever handle and are secured in position by the spring locking
bolt entering into one or the other of the notches in the arc 13.
In order to deliver the powder to some or all of the discharging orifices I use the
following arrangements.
The powder falls from the feeding roller k into the air passage m leading from
the fan whence by the current of air generated by the fan, it is carried into two
other passages n, o, on the opposite sides of which are the discharging orifices
PP, pp. In these passages flaps or doors are arranged for the purpose of shutting
or closing one or other of them and also regulating the area of the discharging
orifices. The air passage m is arranged as shown in the drawing to pass under the
axis b as by so arranging it the blast is applied more efficiently than heretofore.
The flap m is for the purpose of closing one or other of the passages n. o.
When moved into the position m³ (shown by dotted lines Figure 3) the passage n
is shut off, and the powder is delivered only through the lower discharging
orifices ppl when moved into the position m³ (also shewn by dotted lines
Figure 3) the passage o is shut off and powder is delivered only to the upper dis-
charging orifices pp-but when in a central position (as shewn by the full lines
Figure 3), powder is supplied to all the discharging orifices. The flap mx is
moved into the position required by the lever handle m³ mounted on the axis of
the flap.
When it is desired to discharge the powder through the upper and lower orifices
on say the right hand side only of the machine the flaps n¹ o' are moved to the
left. To accomplish this both flaps are mounted on an axis q common to both.
On this axis is a toothed wheel q³ (Figure 1); gearing with this toothed wheel is a
toothed are q¹ (Figure 2) mounted on an inclined flexible axis q³ and rotated by
the handle g; (the axis is rendered flexible by the introduction of a universal joint
at q). To apply powder to the left hand side the opposite of these motions
takes place.
To regulate the area of the discharge orifices, flaps rr, r¹ 71 are used. These
flaps turn on fixed centres as shewn at Figure 4. 8 is a rod to which these flaps
are jointed and capable of being raised or lowered by the handle s¹. When this
rod is raised to its full extent the flaps are also raised and the discharge orifices
opened to their greatest area. When the rod &.is lowered the area of the discharge
orifices are reduced accordingly. When the flaps have been adjusted, and the area
of the discharge orifices determined a screw pin is inserted at through one.or

page_text: other of the holes in the rod s; the pin is screwed into position by a suitable key,
so that, after once adjusting the machine, it cannot be altered except by use of
the proper key.
u (Figure 5) is the division plate in the centre of the air passage leading to the
upper orifices P P.
In the use of the machine, it is hauled between the rows of growing plants, it is
desired to dress, and guided by a workman grasping the handles t t.
By these means if all the discharging orifices be open a perfect dressing will be
given in calm or fine weather to the plants on either side of the machine and the
quantity of material used can be so adjusted that the dressing may be equal and
regular throughout the whole of the crop and waste of material thereby reduced to
a minimum.
By the arrangement of the apparatus before described for shutting off the supply
of powder from one side or the other an important saving of the material to be
applied is secured in stormy or windy weather and also more thorough and effective
application of the powder by driving the machine round on the outside of a crop
or hop garden to complete the application.
It will be obvious that for those crops where the lower discharge orifices p¹ p¹
are found to be sufficient, the upper discharge orifices p p can be dispensed with
and the machine built with only the lower orifices thereon-thus dispensing with
the upper divided passage n, delivery orifices p p the flap m* and the apparatus in
connection with these parts and thereby considerably simplify the machine.
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 improved general arrangement and construction of machines for dressing
hops, vines, fruit and other trees with fine powder for destroying insects mould or
oidium substantially in the manner and for the purpose hereinbefore set forth and
shewn in the accompanying drawings.
2. The improved construction and arrangement of the air-blast passage beneath
the main axis and frame of a hop or vine dressing machine substantially in the
manner herein before described and represented in the accompanying drawings.
3. The improved arrangement construction and combination in hop or vine
dressing machines of apparatus for regulating the delivery from the several orifices
all substantially in the manner and for the purposes herein before described and
represented in the drawings hereto annexed.
4. The arrangement in hop or vine dressing machines of either two or four
discharging orifices in combination with the apparatus described and represented in
the drawings for supplying the powder to only one such orifice (on either one side)
or to more than one orifice as required, substantially in the manner and for the
purpose hereinbefore described.