Improvements in the Construction and Ventilation of Soil Pipes, House Drains, or other Sanitary Fittings.
Year: 1887

page_text: Date of Application, 22nd Nov., 1887
Complete Specification Left, 22nd Aug., 1888
Complete Specification Accepted, 26th Oct., 1888
RESERVE
PROVISIONAL SPECIFICATION.
Improvements in the Construction and Ventilation of Soil Pipes,
House Drains, or other Sanitary Fittings.
I ROBERT HARRIS REEVES of Cedardale House, Putney Bridge Road Surrey,
Engineer do hereby declare the nature of my said invention to be as follows:-
The first part of my invention consists in constructing a valve box in which a
balanced valve of glass, pottery or other ware takes a seating upon a raised nickel
plated or other non corrosive substance, said valve aperture for the entrance of air
being in connection with a short branch at the side of the soil pipe, so that the valve
proper is not affected by the down rush of water, or flush in the soil pipe, the air so
supplied preventing the trap or branches of other closets, supposing a number of
closets be in communication with one soil pipe, from being syphoned.
The air outlet portion of the soil pipe is also provided with a novel construction of
box, this having a porous partition through which a chemical in solution finds its way
to impregnate and purify the escaping air before its issue from a nozzle.
The branch or bend of the soil pipe is provided with a depending lip in a kind of
box, the upper part of which is provided with a neck for the reception of a ground
plug or a cover to be easily fitted by a turning action imparted to the cover this
having lips to engage under tapered or inclined shoulders of the neck. On this plug
being removed the trap and the down pipe can be readily inspected and any obstacle
removed, the dip-lip being so arranged that a comparatively large chamber is formed
directly behind it which ensures a clear passage for the soil.
Datel this 22nd day of November 1887
H. GARDNER,
166, Fleet Street, London,
Agent for the said Robert Harris Reeves.

page_text: Improvements in the Construction and Ventilation of Soil Pipes,
House Drains, or other Sanitary Fittings.
I, ROBERT HARRIS REEVES, of Cedardale House, Putney Bridge Road, Surrey,
Engineer, 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 :-
This invention relates to certain improvements in the construction and ventilation
of soil pipes, house drains, or other sanitary fittings and consists 1; In constructing a
valve box A, in which a balanced valve B of glass, pottery or other ware takes
a seating upon a raised nickel plated ring C or other non corrosive substance, said
valve covering an aperture D for the entrance of air, said ring C being in connection
with a short branch E at the side of the soil pipe F (one being fitted above each floor
level) so that the valve proper B is not affected by the down rush of water or flush in
the soil pipe F. The air so supplied prevents the traps or branches of other closets,
supposing a number of closets being in communication with one soil pipe, from being
siphoned.
The air outlet portion of this soil pipe F is also provided with a novel construction
of box G, this having a porous partition plug or tap H, through which a chemical in
solution finds its way to charge a chamber G¹.
According to the second part of my invention, the branch or bend J of the soil
pipe F is provided with a depending lip K in a kind of box formed at the bend J,
the upper part of which, is provided with a neck L for the reception of a ground plug
or a cover M to be easily fitted by a turning action imparted to the cover, this having
lips N, N, to engage under tapered or inclined shoulders of the neck L.
On this plug M being removed the trap J and the down pipe P can be readily
inspected and any obstacle removed, the dip-lip K being so arranged that a com-
paratively large chamber is formed which ensures a clear passage for the soil.
By this invention, the usual outside tall ventilating pipe or shaft is dispensed with
no actual foul air or gas being allowed to escape.
This is accomplished as follows:-
--
Each time a closet, which is above the level of a valve box A, is used, the sudden
rush of water down the soil pipe F to flush it causes a compression of the air that is
within the soil pipe, such compression causes the valve B to lift and the compression
reduced by an escape of a portion of the air; the flush continuing its descent creates
a partial vacuum and as the valve B is sluggish in its return motion a quantity of
fresh air enters the valve aperture D and destroys the partial vacuum, the flush having
a free draught with improved impetus into the drain P.
The lower part of the soil pipe at F¹ has a branch box G provided with a nozzle I
covered by a loose fitting cap sitting upon the nozzle and with overlapping edges
to prevent the escape of a chemical solution, which after percolating through a porous
partition H of a jar H¹ charges the chamber G¹ in which the loose fitting cap is
arranged.

page_text: This cap lifts under the action of the compressed air simultaneously with the valve B
of the box A and the liquid seal being thereby broken allows a quantity of the solution
to escape into the soil pipe, at the same time it purifies any foul air that may be
escaping through the box G, from lower part F¹ of the soil pipe, or from the drain
trap J.
The small quantity of chemical solution which passes into the trap has a disinfecting
action upon the liquid in the trap and upon the foul water as it passes into and along
the drain.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The several detail improvements (as herein set forth and shown on the drawings)
in soil pipes, house drains, or other sanitary fittings.
2. The balanced valve B in box A attached to a soil or other pipe F to supply air
at the moment of flushing of said pipe and to prevent traps of other closets, connected
to said soil or other pipe F, from being siphoned.
3. The box G with porous partition H for supply of chemical purifying agent each
time the soil pipe is flushed.
4. The ground faced plug M in trap bend L to facilitate easy cleaning of drains as
set forth.
The 22nd day of Anonst. 1888.