A Means of Cleansing Sewers, Drains, and Pipes.
Year: 1894

page_text: Date of Application, 17th Mar., 1894
Complete Specification Left, 15th Dec., 1894-Accepted, 2nd Feb., 1895
PROVISIONAL SPECIFICATION.
A Means of Cleansing Sewers, Drains, and Pipes.
CHARLES HAWLET COOPER of 2 Queens Road Wimbledon in the County of
Surrey do hereby declare the nature of this invention to be as follows:-
.
To effect the cleansing of sewers drains & pipes by passing a drag or scoop
through such sewers drains or pipes by means of lines ropes or chains attached to
one or both ends of a drag or scoop.
A means.01 Cleansing Sewers, Drains, and ripes.
I, CHARLES HAWLET COOPER, of 2 Queens Road, Wimbledon, in the County
of Surrey, 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 :-
The apparatus which I provide for cleansing sewers, drains and pipes, consists
of a handle or shaft which can be attached to one of a number of scoops or of
tine drags adapted to suit the material to be removed from the sewer and also the
size of the sewer or drain.
There is an eye upon the scoop or drag and a similar eye on the end on the
handle furthest from the scoop or drag; to these eyes ropes are attached so that
the cleanser can be drawn in either direction.
In order to cleanse a sewer or.drain with the apparatus it is first necessary to
introduce a line through the length that it is intended to cleanse. This can be
done in one of two ways:-
If the sewer or drain is not completely blocked a float is attached to a line and
the float is then inserted at the opening at the higher end of the length that it is
intended to cleanse; then on a flush of water being applied the float is carried
down to the lower opening.
If the sewer or drain is fully blocked the line must be passed through by means
of rods or a strong wire..
Having got the line through the length to be cleansed it is attached to a rope at
the highest end; this rope is drawn through the length and then is made fast to
the handle of the cleanser.
The cleanser can now be drawn down the length and a part of the deposit in
the length may be removed. If the cleanser meets with an obstruction it can be
withdrawn by means of the rope attached to the scoop or drag...
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page_text: It is generally necessary to commence with a small scoop and having removed
some of the deposit with it to attach a larger and so on till the largest scoop the
sewer will take has been passed through.
The scoops are in the form of truncated cones the smaller end, formed of
malleable cast iron, having a hole in the centre with which the end of the handle
which is in line with the central axis of the cone can be screwed. Cast or fixed
on this end is the eye to which the rope is attached.
The end piece is flanged for the sheet iron forming the cone to be united to it.
To strengthen the other end of the cone which forms the cutting ends a ring of
half round iron is rivetted. In order to prevent the cutting edge catching against
projecting pipe ends pieces of iron are attached to the outside of the cone and
bent over the cutting edge. In the larger cones these pieces of iron are continued
till they meet in a ring through which the handle passes, by this means the cutting
edge is much strengthened.
The tine drags consist of a truncated cone formed with a malleable cast iron
head similar to that just described to which a number of tines are attached and
bent in the form of a cone; they are turned iu towards the centre at the end' so as
to prevent them catching upon projecting pipes, where joints occur.
These drags are intended to remove large materials such as bricks and to break
up material which has become consolidated.
The annexed drawing shows apparatus in accordance with my invention and
illustrates the manner of its use.
Figure 1 represents a longitudinal section of a pipe drain of large size say
15 inches diameter and the cleaning apparatus is seen in elevation within it.
Figure 2 is a section of the scoop apparatus.
a is the handle bar and a' an eye at its end to which a rope is attached as
shewn. bis the malleable cast iron end piece of the scoop, it has a socket in, the
centre into which the inner end of the handle bar screws.
end piece b to which another rope is shackled. c is a sheet iron cone, it is rivetted
b is an eye on the
to the flanged edge of the piece b. c¹ is a ring rivetted on to the cutting edge of
the scoop to strengthen it. d d are guard pieces rivetted to the exterior of the
cone to prevent the cutting edge catching on the ends of the pipes. The guard
pieces are in these figures shown to meet in a ring & by which means the handle
bar passing through the ring is made to support the cutting edge.
Figure 3 is a front elevation of the scoop shown by Figures 1 and 2.
Figure 4 shows a section and Figure 5 a face view of a drag to be used to loosen
the deposit before the scoop is applied; it has a malleable cast iron end piece e like
that of the scoop and it has tines arranged in conical form upon the end piece
and rivetted to it. g is a strengthening ring encircling the tines and fixed to them
near their outer ends. The ends of the tines are curved inwards to prevent them
catching upon projecting pipes where joints occur..
The drag when required for use is screwed on to the handle-bar in the same way
as the scoop which it replaces.
The drag shown by Figures 4 and 5 is suitable for sewers or drains from twelve
inches in diameter upwards, and eggshaped sewers from twelve inches wide and
upwards,
Figures 6 and 7 show a scoop for a twelve inch drain; it is like that shown by
Figures 1, 2 and 3 but smaller.
Figures 8 and 9 show a scoop for a nine inch drain; in. this smaller size the
supporting ring d' embracing the handle bar is dispensed with..
Figures 10 and 11 show the drag for use in a nine inch drain.
The scoops and drags shown by Figures 6 to 11 are also used in drains of larger
size than those named to commeuce to clear them when the quantity of deposit
they contain is considerable.
Figures 12 and 13 shew a scoop or drag for a six inch drain.

page_text: 0
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 :-
Apparatus for cleansing sewers, drains and pipes, substantially as described and
represented by the annexed drawing.