Improvements in Self Flushing House or Sewer Drains.
Year: 1892

page_text: Date of Application, 19th July, 1892
Complete Specification Left, 19th May, 1893-Accepted, 1st July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Self Flushing House or Sewer Drains.
I, EDWARD TURNER of 36 Saint James' Road, Liverpool, Painter &c. do hereby
declare the nature of this invention to be as follows:-
My invention relates to self flushing house or sewer drains in which the base or
container of same is made up of either cast iron, porcelain, earthenware or the like,
and the outlet or discharge pipe is placed at right angles to same, and having its
sharp edges squared or rounded off.
In accordance with my invention I employ a self flushing box trap connected to
the hinged end of the grid of the drain. This trap has two arms, one of which has
connected thereto a triangular shaped box having the top open, said box has a hole
cut in the centre of same corresponding to that of the outlet or discharge pipe.
I also connect to this arm a ridge which has a ring of india-rubber, leather or the
like upon same, which impinges upon the said outlet or discharge pipe and thus
making it air and water tight, whilst the other arm is curved round the box and
runs parallel at a suitable distance from same to the end of said box, and so causes
the water to be on a level with the top of the box instead of on a level with the
bottom of the outlet or discharge pipe as has heretofore been the case.
When the drain requires flushing, the operator raises the grid which lifts the two
arms and so causes the water which has been collected in the base or container to
rush through the sewer pipes; and, when the grid is closed, the ridge forms an
airtight joint and so prevents all obnoxious smells from coming up the drain.
Dated this 15th day of July 1892.
JAMES
STEVENSON,
Gray's Inn Chambers, 20, High Holborn, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Self Flushing House or Sewer Drains.
I, EDWARD TURNER of 36 Saint James' Road, Liverpool, Painter &c. 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:-
My invention relates to self-flushing house or sewer drains in which the base or
container of same is made either of cast iron, porcelain, earthenware or the like and
the outlet or discharge pipe is placed at right angles to same and preferably with
the sharp edges chainfered, or, rounded off.
.
And, in order that my invention may be more fully understood, I have appended
the accompanying sheet of drawings in which
and
Figure 1 is a sectional elevational view of a drain fitted with my improved device
Figure 2 a side view showing the trap and grid raised; like letters of reference
being employed to indicate corresponding parts throughout the several views.
In accordance with my invention, I hinge to one end of the base or container A,
a self-flushing box trap B. This box trap B has two arms one of which has
connected thereto, a triangularly shaped box F, having the top open. Said box
has a small pipe E, connected to same, corresponding to that of the outlet or
discharge pipe C. The pipe E has cut in same, a slot or groove for the insertion
therein of any suitable packing such for instance as india rubber, leather or the
like, which when in its proper position impinges upon the discharge pipe, thus

page_text: making a perfectly air and water-tight closure. The other arm of the box B is
curved round the box and runs parallel at a suitable distance from same to the end
of said box, and so causes the water to be brought on a level with the top of the
outlet or discharge pipe C instead of on a level with the bottom of same as
has heretofore been the case.
When the drain or the like, requires flushing, it is only necessary to raise the
grid D and then by placing a key or the like, in the hole provided in the lug G the
self-flushing box-trap B can be lifted out and thus causing the water which has
been collected in the base or container, to rush through the sewer pipes. Then,
when the trap B and grid D) is again closed the trap becomes air-tight and prevents
all noxious smells, from passing up the drain. Another advantage arising from the
use of the device in accordance with my invention, is, that any sediment collected at
the bottom of the container, can be readily removed by the ordinary implements,
without raising the trap B, and so ensuring that those engaged in the occupation of
attending to the cleaning out of house or sewer drains shall not be exposed to the
baneful influence of the ascending noxious odours.
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 [
claim is.
For house or sewer drains the self-flushing means which I employ substantially
as and for the purposes herein set-forth and shewn in the accompanying sheet of
drawings.
is th day of
1095.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicant.