Improvements in and relating to the Spraying of Liquids on to Surfaces.
Year: 1894

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883), as allowed by
the decision of the Comptroller-General of the 6th day of February 1896.
Date of Application, 31st May, 1894
Complete Specification Left, 28th Feb., 1895-Accepted, 30th Mar
1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Spraying of Liquids on to
Surfaces.
I, JAMES HARVIE MEIKLE, of 19 Royal Terrace West, in the City and
County of Glasgow, Glass Merchant, do hereby declare the nature of my invention
to be as follows:-
This invention has reference to and comprises the spraying of oil, paint, or other
liquid fluids in the form of spray or vapour on to the surfaces of stone, brick,
wood, metal or other material to act as a coating and preservative or colouring
agent; and which will be very suitable for being used in combination with what
is known as the "sand-blast" process, so as to coat with wash or preservative
liquids the exposed surfaces of buildings or structures, after they have been
operated on and dressed by the pneumatic sand-blast.
By my improvements I project a regulated spray of oil, paint, or other suitable
liquid on to buildings or other exposed surfaces, desired to be coated, by means of
a regulated jet or jets of compressed air or like gaseous fluid under pressure. This
would be effected by taking an inner cylindrical vessel or cistern set vertically
within an outer annular surrounding close vessel or casing, and leading a continua-
tion pipe formed in one with or jointed to the centre part of the lower end of the
inner vessel, into a union duplex branch formed in one with or jointed to the lower
end of the outer annular vessel. The lower end of the central pipe would be bent
or curved round to face towards the discharge end of this union branch or be fitted
with a tapered or like end nozzle. India rubber or other flexible pipes would
be connected to the respective ends of this union branch, the one
or inlet
flexible pipe which would be fitted with a regulating valve, being in communi-
cation with an air compressor or blower, and the other or discharge pipe having
a regulating spray nozzle fitted on its free end. The inner vertical vessel would
be filled with oil, paint, or like liquids, which would pass through a regulating
valve or cock fitted on the outlet pipe leading to the aforesaid union branch
where the current of compressed air would play annularly round the curved end
of pipe, and spray the oil or liquid through the nozzle end of flexible or hose
pipe in the form of a fine spray or vapour on to the building or surface desired
to be coated.
.
Dated the 30th May 1894.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.

page_text: .
Improvements in and relating to the Spraying of Liquids on to
Surfaces.
I, JAMES HARVIE MEIKLE of 19 Royal Terrace, West, in the City and
County of Glasgow, Glass Merchant, do hereby declare the nature of my invention
to be as follows:-
This invention has reference to and comprises the spraying of oil, paint, or
other liquid fluids on to the surfaces of stone, brick, or metal, to act as a coating
and preservative or colouring agent; and which is intended for being used in
combination with what is known as the "sand-blast" process, so as to coat with
wash or preservative liquids the exposed surfaces of buildings or structures, after
they have been operated on and dressed by the pneumatic sand blast.
And in order
that my said invention and the manner of performing or carrying the same into
effect or practice may be properly understood, I have hereunto appended an
explanatory sheet of drawings in which
Figure 1 represents an external. elevation and Figure 2 a corresponding plan
view of an apparatus to be used for spraying purposes in accordance with my
improvements.
Figure 3 is a sectional elevation looking at right angles to Figure 1, while
Figure 4 is a horizontal section as taken on the line 3-3 of Figure 3.
Referring to these drawings, by my improvements I project a regulated spray
of oil, paint, or other suitable. liquid on to buildings or other exposed surfaces
desired to be coated, by means of a regulated jet or jets of compressed air or like
gaseous fluid under pressure after said structures have been previously dressed
by the well known sand-blast process. This is effected-as shown in the drawings
by taking an inner cylindrical vessel or cistern A. set vertically within an outer
annular surrounding close vessel- or casing B, and leading a continuation pipe
jointed to or formed in one with the centre part of the lower end of the inner
vessel A, into a union duplex branch b, jointed to or formed in one with the lower
end of the outer annular vessel B. The lower end of the central pipe a is bent or
curved round to face towards the discharge end of this union branch b, or is fitted
with a coupled end a', which may have a tapered nozzle. India rubber or other
flexible pipes would be connected to the respective ends b', 62 of this union
branch b, which would be fitted with a regulating valve c' and a relief valve c
being in communication with an air compressor or blower, and the other or
discharge pipe C having a regulating spray nozzle C₁ fitted on its free end. The
inner vertical vessel H would be filled with oil, paint, or like liquids, on to the
surface of which the pressure of compressed air would pass as indicated by
the arrows, and the liquid would pass through a regulating valve or cock a fitted
on the ontlet pipe a, leading to the aforesaid union branch 6 where the current of
compressed air from the pipe c would play annularly round the curved end a¹ of
pipe a and spray the oil or liquid through the nozzle end C of flexible or hose
pipe C in the form of a fine spray or vapour on to the building or surface desired
to be coated.
A vertical spindle. D: would preferably be. fitted in the central vessel A and
work in a footstep bearing D¹ at lower end of vessel,,and be fitted with a series of
vanes D. The spindle D would pass through a fluid tight joint in the cover. B' of
vessel B and be provided with a handle D outside, so that the paint or liquid may
be thoroughly agitated and mixed before being sprayed on to the intended surface.
A ported cover B2 of outer vessel B would be fitted on top part B₁ of outer
vessel B for filling the central vessel A with liquid, and straps A' would be fitted
at the sides of the vessel A for guiding it within the outer vessel B.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
The dressing of the exposed surfaces of buildings or like structures with a
pneumatic sand blast, in combination with the subsequent coating of said surfaces,
with a spray of oil, paint, or like liquid to act as a preservative or colouring agent,
substantially as and in the manner herein set forth.
Dated the 27th February 1895.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.