An Improved Apparatus for Coating the Surfaces of Walls and Buildings with Sand or other material.
Year: 1891

page_text: Date of Application, 14th May, 1891
Compete Specification Left. 13th Feb., 1992-Accepted, 30th Apr., 1892
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Coating the Surfaces of Walls and
Buildings with Sand or other material.
We JABEZ HODGSON and EDWIN SENIOR SHEARD both of Blackpool in the
County of Lancaster, Plumbers do hereby declare the nature of our said invention.
to be as follows:-
This invention relates to the process of coating the painted surfaces of walls &
buildings with sand, a mixture of sand and crushed glass or other similar material
whilst the paint is wet to give an ornamental appearance to the same and consists
of an apparatus whereby the sand or other suitable material can be spread in a
more rapid and efficient manner than hitherto.
This improved apparatus consists of an air-tight drum or vessel containing a
suitable quantity of sand mixture of sand and crushed glass or other similar
material and furnished with a passage or tube passing completely through the said
drum or forming an isolated chamber and connected by means of a flexible tube at
one end to a pair of foot-bellows and at the other end to a suitable nozzle.
The sand or mixture contained in the drum is permitted to run into this passage
or chamber in a continuous stream through a suitable funnel arranged vertically in
the said chamber.
By creating a steady draught by means of the foot bellows the loosened sand as
it flows into the said chamber is propelled in a constant stream through the nozzle
and can be directed by the operator onto any part of the wall or building to be
coated.
By providing the aforesaid drum with a suitable air inlet cock or valve, we are
enabled to control the amount of sand flowing into the chamber, by unscrewing this
cock or valve we also provide an orifice for charging the drum or vessel.
The nozzle we employ is by preference provided with an elongated mouth and
is furnished with passages converging towards the inlet orifice and thus serving to
spread the sand or other material evenly over a large surface as desired.
Dated this 13th day of May 1801
JOHN G. WILSON,
Agent for the Applicants.
COMPLETE SPECIFICATION.
An Improved Apparatus for Coating the Surfaces of Walls and
Buildings with Sand or other material.
We, JABEZ HODGSON and EDWIN SENIOR SHEARD, both of Blackpool, in the
County of Lancaster, Plumbers, do hereby declare the nature of our said inven-
tion 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 the process of coating the painted or other similarly
prepared surfaces of walls and buildings with sand, or mixture of sand and crushed
glass or other similar material whilst the paint or preparation is wet to give an
ornamental appearance thereto and add to the durability of same and consists of ap
apparatus whereby the sand or other material employed can be spread in a more
rapid and efficient manner than heretofore.
On the accompanying drawing
Fig. 1 is a side sectional elevation of our improved sanding apparatus and

page_text: .
This improved apparatus consists of a sheet metal drum or vessel A divided into
an upper air tight compartment B for the reception of the sand and a lower com-
partment C in which a pair of double action bellows D and D' are situated
provided with a treadle D² extending outside the drum. Passing transversely
through the drum is a pipe or tube E connected with the lower bellows D at one
end by the vertical pipe F and at the other end by means of the flexible tubing G
connected with the distributor or nozzle H.
The pipe or tube E communicates with the upper compartment B by means
of a joint I the open end of which is provided with a disc valve J actuated by
a rod K and regulating hand wheel I.
The valve consists of a disc or plate M (seen more clearly in Figs. 3 & 4)
with a segmental slot N formed in it which comes opposite a similar slot in the
screw plug when it is desired to allow the sand to flow into the pipe.
The sand or mixture of sand and glass contained in the compartment B is thus
permitted to run in a continuous stream into the pipe E and to accelerate the
How we provide the joint I with a small cone shaped nipple P which gives an
ejection action to the sand as the air is blown along the pipe E.
On creating a steady draught by means of the foot treadle D' the loosened sand
as it flows into the pipe or tube E is propelled in a constant stream through the
flexible tube G to the distributor or nozzle H and can be directed by the chief
operator onto any part or the wall or building to be treated. The botton B of the
sand compartment B slopes as illustrated to cause the sand to flow towards the
valve J and so act as a funnel as described in my Provisional Specification.
The cover of the drum is provided with an air inlet cock or valve S by
opening which we are enabled to blow back any obstruction which may get
into the regulator and by unscrewing such cock or valve we provide an orifice
for charging the drum or vessel.
The distributor H is constructed as illustrated and is made with divisions
forming passages or channels T. T. diverging from the inlet orifice U and thus
serving to spread the sand or other material evenly over a large area as it issues
from the pipe or tube G.
The drum or vessel A may be mounted on wheels to afford portability and may
be provided with handles to push or lift it from place to place. An important
advantage accrues from the use of our invention on account of the apparatus
remaining stationary, a mere boy being able to work the bellows whilst the chief
operator is at liberty to move about at will or go to a considerable height on a
ladder or scaffold having nothing to impede his progress but the length of the
flexible tube.
Having thus particularly described and ascertained the nature of our said inven
tion and in what manner the same is to be performed we declare that what
we claim is.
1st. The improved apparatus for coating the freshly painted and other similarly
prepared surfaces of walls and buildings with sand or other material arranged,
mounted and operating in combination with the nozzle H substantially as herein-
before described and illustrated on the accompanying drawing.
Dated this 10th day of February 1892.
JOHN G. WILSON,
Agent for the Applicants.