IMPROVED DRAIN PIPE DESIGNED. TO FACILITATE CLEANSING
Year: 1884

page_text: JOSEPH WOODMAN 2 Kings Street Park St. W Builder & Decorator I do hereby
declare the nature of my invention for IMPROVED DRAIN PIPE DESIGNED. TO
FACILITATE CLEANSING" to be as follows:-
An ordinary Y Junction drain pipe the,. Y, inlet to have a screw thread and an
eartheware stopper to inlet with screw thread to fit in above with Iron ring in
centre to screw up tight the said drain cleaner to be fixed with the Y up right to
any ordinary drain pipe any size and made right and left so that the drain machine
may be passed any way in the drain wherever the drain cleaners are inserted in
drain the place in floor above should be indicated at exact spot so as to be opened
direct the screw of Drain Cleaner to be greased with tallow each time of using.
Dated this 21st day of May 1884.

page_text: I JOSEPH WOODMAN 2 King Street, Park Street, W. Builder and Decorator, do
hereby declare the nature of this invention for "IMPROVED DRAIN PIPE DESIGNED
TO FACILITATE CLEANSING and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :—
"
This invention will be best understood by reference to the accompanying
drawings in which Figure 1. is an elevation partly in section of two drain pipes
fitted with my invention; Figure 2 is a section of the cap and fittings.
A is the pipe and B the branch arranged in any direction suitable for my
purpose but as a rule the more nearly parallel the branch is with the main pipe the
better.
The end of the branch B is closed by a plug C which screws in as shown.
This plug is by preference made of the same ware as the pipe, and threaded in
its periphery at C₁ a corresponding female thread D being formed in the enlarged
end of the branch. The plug C is provided with any suitable form of handle or
means for turning it as at C.
As there is sometimes difficulty in getting the threads formed in the pipe and
plug the course indicated on a larger scale in Figure 2 may be adopted.
The plug C is here made of metal, such as galvanized or other iron or zinc and
provided with the handle C as before; it screws either direct into the pipe end, or
into a collar E let into the pipe and internally threaded to suit the plug. The
collar E may be of metal as well as the plug.
The collar E may also be of the same ware as the pipe and the plug also, the
object in this being to save screw threading the pipe itself where any difficulty is
experienced in the firing of the pipes on account of their warping.
The great advantage of these plugs over the plates or plugs usually used and
cemented in so that they have to be chipped, out is at once apparent.
Doubtless cast iron is about the cheapest metal for the plug and collar, but if
used it should be galvanized or well painted to resist the great tendency to rust.
By using these pipes it will be seen that at any time the drain may be
examined and the "drain machine" or apparatus for removing obstructions
inserted, without the necessity for digging up the ground which has almost always
to be done with the ordinary drains.
If the drain be near the surface of the ground a suitable recess with a flag over
it will be sufficient; if it is laid at a considerable depth a manhole and means for
introducing the "drain machine" may be provided at the time of laying the drain.
These plugs will also be useful when applied to branches inspection syphons or
the ends of drain pipes for the purpose of examination or cleaning short lengths
when the "drain machine cannot be used a branch of this sort is shown in dotted
lines in Figure 1.
"
The branches B may of course be arranged either right or left but the best way
is to use either both right and left as shown in Figure 1 so that the "drain
machine" may be inserted either way and the drain cleared in either direction from
the points of entrance.
Where the drain pipes are made of iron it will be sufficient to form an internal
thread in the end into which the plug can be screwed.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is,
1, The combination with a drain pipe of a removable screw threaded plug C
substantially in the manner and for the purpose set forth.
2, The combination with a drain pipe of the collar E screw threaded on its
inside substantially as and for the purpose set forth.
Dated this 17th day of October 1884.