An Improved Spraying Apparatus.
Year: 1894

page_text: Date of Application, 28th Nov., 1894
Complete Specification Left, 13th Sept., 1895-Accepted, 19th Oct., 1895
PROVISIONAL SPECIFICATION.
An Improved Spraying Apparatus.
We, ROUGHSEDGE WALLWORK, of the Firm of Henry Wallwork & Co.,
of Roger Street, Manchester, in the County of Lancaster. Engineer, and
ARTHUR COLLINGS WELLS, of the Firm of A. C. Wells & Co, of 103 Midland
Road, St. Pancras, in the County of London, Engineer, do hereby declare the
nature of this invention to be as follows.-
Our invention relates to apparatus chiefly designed for covering surfaces with
paint, whitewash, tar or other Huid or semi-fluid materials by spraying or injecting
them from the orifice of a tube or nozzle instead of applying them by means of
brushes or similar implements
For this method of using paint or similar material the same is sometimes placed
in a suitable reservoir to which the air under the required pressure is admitted.
The air and paint or other liquid are conducted through suitably arranged tubes to
apparatus having a nozzle or nozzles through which the paint is discharged upon
the surface to be covered and with cocks or valves for regulating the discharge.
Our present invention consists chiefly in combining with the air and liquid
conduits or passages of the said apparatus a simple and efficient device whereby at
any moment while using the apparatus, the direction of the air and liquid currents
can be altered so that the flow of liquid is arrested while the air current clears the
discharge-aperture of any obstruction that has collected therein
It also consists in the combination with the said device of a nozzle at nozzles in
the manner hereinafter described.
Our improved apparatus has an air tube and liquid-tube which may be arranged
parallel to each other and securely united in a convenient form for being held and
manipulated Each tube is provided at one end with a screw coupling or other
convenient means for attachment to a pipe or pipes which communicate with the
tank or reservoir and air-holder or pump At the other end of the said apparatus
the tubes thereof terminate in sockets, in a casting on the end of which is formed
fixed the aforesaid nozzle and in which is arranged the cock or valve of the
aforesaid device for regulating the flow of the air and liquid.
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The cock is so arranged relatively to the tubes that its plug can be turned to
make a direct or straight communication with the nozzle so that the paint or other
material will flow freely through it, or to close such communication and open a
passage from the air-pipe through one side of the cock so that the air will be
blown through the same to free the plug and passages from solid matter that may
have been deposited from the paint or otherwise accumulated therein
For operating the cock we provide the plug spindle with a small toothed wheel
or pinion and gear the same with a toothed sector fitted to turn about a stud or pin
attached to the tubes and projecting at one side of the apparatus This sector has
a handle or hand lever arranged in such a position that in using the apparatus the
operator can grasp the tube firmly in the hand and at the same time by a slight
pressure of the thumb or finger can move the sector in one direction against the
pressure of a spring which moves in the opposite direction, the plug can thus be
turned in either direction as required.
The nozzle has an interior cone projecting from the socket piece or casting and
having a central passage with which the tubes communicate Over this cone is

page_text: placed a cap with a conical end and in this conical end is antanged a small hollow
inverted cone having a central orifice at its apex which lies opposite the orifice of
the inner cone
The outer orifice of the small cone is enlarged so as to ensure the
proper spreading of the paint or other liquid issuing therefrom. The cap is secured
to the casting by screw-threads or otherwise so that it can be readily removed and
replaced when required. A hook may be provided on the apparatus for enabling it
to be suspended when not in use.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C. Agents for the Applicants
COMPLETE SPECIFICATION.
An Improved Spraying Apparatus.
We, ROUGHSEDGE WALLWORK, of the Firm of Henry Wallwork & Co.
of Roger Street, Manchester, in the County of Lancaster, Engineer, and
ARTHUR COLLINGS WELLS, of the Firm of A. C. Wells & Co., of 103 Midland
Road, St. Pancras, in the County of London, Engineer, 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:-
Our invention relates to apparatus chiefly designed for covering surfaces with
paint, whitewash, tar or other fluid or semi-fluid materials by spraying or injecting
them from the orifice of a tube or nozzle by air-pressure, instead of applying them
by means of brushes or similar implements.
In this method of using paint or similar materal the same has been sometimes
placed in a suitable reservoir to which air under pressure is admitted for forcing
out the paint through suitably arranged tubes, to the spraying apparatus, through
the nozzle or nozzles of which, the paint is discharged in the form of spray by
means of an air current and thus applied to the surface to be covered, the said
spraying apparatus being provided with cocks or valves for regulating the discharge.
Our present invention consists chiefly in combining with the air and liquid
conduits or passages of the said spraying apparatus a simple and efficient device
whereby at any moment while using the apparatus, the direction of the air or liquid
current can be altered so that the flow of liquid is arrested while the air current
continues, and clears the discharge-aperture and contiguous parts of any obstruction
that may have collected therein.
The said invention also consists in the combination with the said device of a nozzle
or nozzles in the manner hereinafter described.
In order that our said invention may be clearly understood and readily carried
into effect we will describe the same more fully with reference to the accompanying
drawings, in which
Figure 1 is a sectional elevation showing a spraying apparatus constructed in
accordance with our invention.
Figure 2 is a longitudinal section shewing a modified construction thereof.
Figure 3 is a longitudinal section shewing a further modification in which a series
of air and paint nozzles is employed.
Like letters of reference indicate similar parts in all the figures
Referring to Figure 1 A is an air tube and B is a paint or other liquid tube, the
said tubes being in this construction arranged parallel to each other and securely
connected together in a convenient form for being held m the hand so as to be
easily manipulated. Each of these tubes is provided at one end with a screw
coupling or union A¹ B¹ for enabling the pipes that communicate with the paint
tank or reservoir and with the air holder or air pump to be readily connected
thereto. The opposite ends of the said tubes fit into sockets formed in a casting C.

page_text: This casting is provided with two passages A² B² which terminate respectively in
the nozzles A3 B3 and said passages are connected together by a transverse
passage C having an outlet at C³. D is the plug of a cock or valve with which
the said casting is provided and which is so arranged relatively to the passages A², 13³,
and C that a direct communication can be made between the nozzle B and the
paint tube B through the passage 12; or such communication can be closed and the
passage C leading from the air tube A be opened to the outlet C3, in which case
the air passing through the tube A will be blown through sand outlet and thereby
free the plug of any solid matter that may have accumulated therein or have been
deposited from the paint. As shewn in the drawings the passage through the
plug D is contracted midway of its length, so that any sediment or obstruction
entering the plug is carried round with it when the said plug is turned for allowing
the air to flow through it. This contracted passage may be made of any desired
size to properly regulate the supply of the paint.
In place of blowing the obstruction out of the plug D by the air pressure as
above stated, we may dispense with the passage C2 and outlet C3 and arrange the
plug to be merely reversed, so that the paint will pass through the said passage in
the opposite direction and thus remove any obstruction. For operating the said
plug D we provide it with a toothed pinion D₁ which gears with a toothed segment
or sector D2, mounted on a pin or stud D3 that projects from one side of the spraying
apparatus. This pin or stud D" serves as a pivot for the toothed segment about
which the latter can be turned by means of a handle or lever D. This handle or
lever is arranged in a convenient position for enabling the operator, while firmly
grasping the apparatus in the hand, to readily move the toothed segment by exerting
thereon a slight pressure with the thumb or finger against the resistance of a spiral
spring with which the pin or stud D3 is provided, the said spiral spring returning
the toothed segment to its original position when the pressure thereon is removed
The plug can thus be caused to turn in either direction as requned
The air
nozzle A3 is surrounded by the paint nozzle B3 which is made in the form of a
screw cap having an inverted conical orifice B to ensure a proper spreading of
the paint as it issues from the nozzle This nozzle B3 is adapted to be screwed to
the air nozzle and its inner face B³ lies in a plane at right angles to the axis of the
nozzle A³.
In the nozzles shewn in the drawings the air nozzle is in each case located
centrally with relation to the paint nozzle We do not however confine ourselves
to this arrangement as in some cases we may arrange the paint nozzle concentrically
with relation to the air nozzle. The aforesaid plug I would then be located on
the passage A instead of on the passage B³ as shewn in the drawings E is a hook
with which the apparatus is provided for enabling it to be suspended when
out of use.
In the modified construction illustrated at Figure 2 we have shewn the nozzles
arranged upon branch arms F, F which are capable of turning or swivelling about
the casting C. For this purpose the arms F are provided with passages F1 F and
with bosses F2 through which hollow screw plugs G pass and enter the casting C.
These plugs seive as bearings about which the arms F can turn, and are formed
with apertures G¹ communicating with cavities F in the bosses F2, the said cavities
being likewise in communication with the before mentioned passages F¹ F. The
casting C is formed with passages A2 B2 as in the previously described arrangement
these passages communicating with the hollow screw plugs G G. By this construction
the nozzles can be set into any desired radial position with respect to the casting C
and the spray be thus ejected in the requisite direction. The hollow screw plugs G
are advantageously formed with butterfly heads G2 to permit of their being readily
unscrewed and removed from the casting C and the parts be thus readily
disconnected.
In the modified construction of spraying apparatus shewn at Figure 3 we have
shewn a head or casting C which is provided with four paint nozzles A3 and four
corresponding air nozzles B³ each of these nozzles being substantially similar in

page_text: construction to that already shewn and described with the exception that their axes
diverge relatively to the axis of the central passage A².
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:-
1. In spraying apparatus the combination with the air and liquid supply conduits
or passages, ot means whereby the air or liquid current ON be controlled
substantially as described and for the purpose specified
2. In spraying apparatus the conical nozzles A and B³, constructed and arranged
substantially as described and for the purpose specified.
3. The improved spraying apparatus having its parts arranged and combined to
operate substantially as hereinbefore described with reference to Figure 1 of the
accompanying drawings.
4. The modified constructions of the improved spraying apparatus substantially
as described with reference to Figure 2, or to Figure 3 of the accompanying
drawings.
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HASELTINE, LAKE & Co.,
45, Southampton Building, London, W.C., Agents for the Applicants.