Improvements in Apparatus for Applying Paint or other Composition to Surfaces.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Applying Paint or other Composition
to Surfaces.
I, JOSEPHI FELL REDMAN, M.I.N.A., of Gallions, Royal Albert Dock, in the
County of Kent, Marine and Engineering Superintendent, do hereby declara
the nature of this invention to be as follows:-
This invention relates to apparatus for applying paint or other composition
to surfaces and has for its object the provision of means for dealing with
surfaces of considerable vertical height in a simple effective and mechanical
manner with a great reduction of labour and at the same time to arrange
the device readily adaptable for use with ordinary stock paint cans of commerce.
To carry my invention into effect I provide a frame of preferably skeleton
formation adapted to rest upon or within an ordinary paint can or drum. This
frame carries a pump to which is attached an air motor so as to operate the
said pump. The supply of air for the motor is taken from the supply of com-
pressed air used in the nozzle for spraying the paint on the surface to be painted.
In this way I make the pump give a positive feed of paint to the spraying nozzle
and so get over the difficulties of feed when the statical head of paint has to be
maintained by the air pressure in the paint reservoir as arranged in many
devices hitherto existent, in which the feed of the paint is dependent on and
inversely proportional to the vertical height of the nozzle above the paint
receiver.
I also arrange a device which acts as a long arm for carrying the spraying
nozzle for dealing with elevated surfaces. This may consist of a telescopic device
preferably of a tubular form which is carried by a trolly or carriage and may
he provided at the upper part with a guiding device adapted to maintain it at
a fixed distance from the surface to be painted so as to ensure a uniform effect
or coating thereon.
I may arrange the spraying nozzle to be supported on a pivot or pivots so
as to be controlled either by a weight to maintain a predetermined position by
gravity or by other means operated at the bottom of the long arm.
I may
arrange the arm to be hinged to the trolly so as to adjust its height by varying
its inclination to the surface being treated.
Dated this 25th day of May 1899.
FELL & JAMES,
1, Queen Victoria Street, London, E.C.,
Agents for the Applicant.

page_text: Improvements in Apparatus for Applying Paint or other Composition
to Surfaces.
I, JOSEPH FELL. REDMAN, M.I.N.A., of Gallions, Royal Albert Dock, in the
County of Kent, Marine and Engineering Superintendent, 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 apparatus for applying paint or other composition
to surfaces and has for its object the provision of means for dealing with
surfaces of considerable vertical height in a simple, effective, and mechanical
manner with a great reduction of labour as usually involved in such an operation,
and at the same time, the arrangement of the device, so as to be readily
adaptable for use with ordinary stock paint cans of commerce.
By means of this invention large structures such as ships, pontoons, bridges,
and similar devices having large and extensive surfaces can be readily and
efficiently coated with great celerity and with a small amount of labour by the
spraying of paint thereon through the medium of compressed air.
In order that my invention may be the better understood I will now proceed
to describe the same in relation to the accompanying drawing reference being
had to the letters and figures marked thereon. Like letters refer to like parts
in the various figures.
Figure 1 is an end elevation (partly in section) of my invention arranged with
pump to be operated by band or other convenient power.
Figure 2 is a side elevation of the same but with an air motor adapted to
drive the pump.
Figure is a plan of Figure 2.
Figure 4 is a view showing the pipe F in section.
Figure shows a view of the arm P arranged with telescopic adjustment and
adapted to pivot on the long arm G.
Figure 6 is a view of the spray nozzle F pivotally supported on the top of the
long arm and provided with guy ropes to adjust its position.
Figure 7 shows a modification of Figure 6 in which the position of the spray
nozzle is controlled by gravity by means of a weight.
To carry my invention into effect I provide a frame A of preferably skeleton
formation, adapted to rest upon or within a tank B such as the ordinary paint
can or drum of commerce.
This frame A carries a pump C or other liquid raising device which can be
operated by a hand wheel D as shown in Figure 1 or by a motor 1) as shown in
Figures 2 and 3, the particular motor in this case being a rotary air motor, and
the supply of air for driving such motor is taken from the pipe 1 by the pipe E¹
to the motor D'. The pipe E has a connection to the pipe for supplying the
nozzle with air to spray the paint.
In this way I make the pump C give a positive feed of paint to the spraying
nozzle and so get over the difficulties of feed when the statical head of paint has
to he maintained by air pressure contained within a closed paint reservoir as
arranged in many devices hitherto existent, in which the feed of the paint is
dependent on and inversely proportioned to the vertical height of the nozzle
above or below the paint receiver.
I provide a device G upon a trolley or carriage H which is adapted as a long
arm to carry the spraying nozzle for dealing with elevated surfaces. This arm G

page_text: is preferably of a tubular form and is made telescopic so as to be extended or
shortened as circumstances require. It is pivotted at its lower part I by swivel
joints K K to the trolley so as to be moved about two horizontal axes at right
angles to one another to enable the nozzle to move to or from the trolley relative
to the surface to be painted and angularly in a vertical plane parallel to the
direction of motion of the trolley, to lower the nozzle or place it forward or
aft of the trolley.
These movements are controlled by guys L or their equivalent in one plane,
which are fastened to the trolley and by means of an arm M, attached to the
lower end of the arm G, and acted on by a spiral spring N to press the nozzle F
toward the surface to be painted; and a screw and hand wheel nut O to restrain
it from such movement to too great a distance.
In order to maintain the nozzle F at a fixed distance from the surface to be
painted so as to ensure a uniform effect or coating thereon I arrange a guiding
device P in the form of a U shaped arm carrying wheels R which roll along the
surface to be painted. I may make the arm P telescopic so as to be adjustable
in length and I pivotally support it on the long arm G so that it will run
parallel to the trolley H as shown in Fig. 5. I may also arrange the spraying
nozzle F to be supported on a pivot or pivots on the top of the long arm so as to
be controlled either by a weight to maintain a predetermined position by gravity
the weight being fixed at the lower end of a lever and the spraying nozzle at the
upper end or by other means such as guys operated at the bottom of the long
arm as shown in Figure 6.
The screw restraining device is pivotted on the trolley on an axis S coin-
ciding with the axis K¹ round which the long arm moves in its fore and aft
rocking motion so that the device readily follows the movement of the arm G.
The shaft of the rotary pump C carries an agitator T adapted to stir up the
paint or other composition in the tank or can B.
The pipe F is double and is arranged so that the paint is forced up the inner
pipe while the air is forced up the annulus around the inner pipe.
It will be noted that when the contents of one can or drum of paint has been
used, the frame A with its gearing can be lifted out of the empty drum, the
latter removed and a full one substituted therefor, when the frame can be replaced
in position thereon.
The cock is arranged in the main air pipe E to regulate the amount of air
delivered to the nozzle F, and the cock X is provided in the delivery pipe from
the pump C to regulate the amount of paint delivered to the spraying nozzle.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what
I claim is:
1st. An apparatus for applying paint or other composition to surfaces con-
sisting of a nozzle adapted to spray liquid by means of air, a receptacle or
reservoir for containing the said liquid, a liquid pumping device for positively
forcing the liquid to the spraying device, and means for connecting the nozzle
with a supply of compressed air and with the liquid pump, substantially as
described.
2nd. In a liquid spraying apparatus for covering surfaces, in combination, a
spray nozzle adapted to spray liquid by means of air, a receptacle or reservoir for
containing the said liquid, a liquid pumping device for positively forcing the
liquid to the spraying device, an air motor adapted to drive the liquid pumping
device and means for connecting the nozzle and air motor with a supply of com-
pressed air and the nozzle with the liquid pump, substantially as described.
3rd. In a liquid spraying apparatus for covering surfaces in combination a
spray nozzle, a receptacle or reservoir for containing the liquid, a positive liquid
pumping device, a framework adapted to carry the liquid pumping device and
to detachably rest upon or within the liquid reservoir, and means for connecting

page_text: the liquid pumping device with the nozzle for supplying liquid thereto, sub-
stantially as described.
4th. In a liquid spraying apparatus for covering surfaces, in combination, a
spray nozzle, a receptacle or reservoir for containing the liquid, a positive liquid
pumping device, an agitating device arranged upon or adjacent to the liquid
pump and operated thereby or in connection therewith, and means for connecting
the liquid pumping device with the nozzle for supplying liquid thereto, sub-
stantially as described.
5th. In a liquid spraying apparatus, in combination, a spray nozzle, a long
arm adapted to carry the said nozzle, a truck or trolley pivotally carrying the
long arm, means for controlling the movements of the long armi, and a guide
at the upper part of the long arm adapted to maintain the nozzle at a pre-
determined and constant distance from the surface to be coated, with liquid,
substantially as described.
Dated this 26th day of February 1900.
FELL & JAMES,
1, Queen Victoria Street, London, E.C.,
Agents for the Applicant.