Improvements in or relating to Pedestal Water Closets.
Year: 1891

page_text: Date of Application, 12th Mar., 1891
Complete Specification Left, 12th Dec., 1891-Accepted, 23rd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in or relating to Pedestal Water Closets.
I, FREDERICK HUMPHERSON of 297 Fulham Road in the County of Middlesex,
Sanitary Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention has reference to what are known as pedestal water closets.
Hitherto these closets have generally been made with the basin, the pedestal and
the trap all in one piece of china or earthenware; some have, however, been made
with a separate lead trap screwed to the basin which has been made in one piece of
china or earthenware with the pedestal.
Now according to my invention I make the basin and the pedestal in separate
pieces as hereinafter described, and I secure a lead trap to the basin without the
aid of screws or other similar fastenings. For the purpose of my invention 1
construct the basin with a flange or protuberance around the same at the upper
part, the said flange or protuberance resting or seating itself upon the top edge of
the pedestal. I form the pedestal preferably of metal, but it may be of earthen-
ware or other suitable material, and I construct it with an internal ledge or shelf
upon or over which I "taft" the upper edge of the lead trap. The basin has a
second flange or protuberance which rests upon the taft of the trap. I also make
the pedestal with an opening at the back and sides of such extent that the trap can
be adjusted so that the outlet thereof can be placed either at the back or at either
eide of the closet according to the particular position of the soil pipe.
With closets constructed according to my invention the basin does not require to
be connected to the pedestal; it merely rests thereon by means of its flanges one
of which seats itself upon the upper edge of the pedestal as already explained and
the other upon the taft of the lead trap. The lead trap requires no connection to
either the basin or the pedestal except the tafting over of its upper edge, and a
bedding or filling of suitable cement at this part. Should the basin be broken
owing to frost or other cause it can be replaced at a small expense, whereas
with existing pedestal water closets a breakage of the basin necessitates the
replacing of the whole apparatus.
When the pedestal is of metal it can more easily be secured to the floor than
when of china.
Dated this Twelfth day of March 1891
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Pedestal Water Closets.
I, FREDERICK HUMPHERSON, of 297 Fulham Road, in the County of Middlesex,
Sanitary 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 :-
My invention has reference to what are known as pedestal water closets.
Hitherto these closets have generally been made with the basin, the pedestal and
the trap all in one piece of china or earthenware; some have however been made
with a separate lead trap screwed to the basin which has been made in one piece of
china or earthenware with the pedestal.

page_text: .
Now according to my invention I make the basin and the pedestal in separate
pieces as hereinafter described and I secure a lead trap to the basin without the
aid of screws or other similar fastenings. For the purpose of my invention I
construct the basin with a flange or protuberance around the same at the upper
part the said flange or protuberance resting or seating itself upon the top edge
of the pelestal. I form the pedestal preferably of metal, but it may be of
earthenware or other suitable material and I construct it with an internal ledge
or shelf upon or over which I "taft" the upper edge of the lead trap. The
basin has a second flange or protuberance which rests upon the taft of the
trap.
The accompanying drawings represent a closet constructed according to my
invention
Figure 1 being a vertical section on the line 1-1 of Figure 2,
Figure 2 a back elevation and Figure 3 a horizontal section on the line 3-3 of
Figure 1.
a is the basin, b the pedestal and the lead trap, all made separately from
each other. is a flange or protuberance around the basin at the upper part,
this flange or protuberance seating itself upon the top edge of the pedestal b.
e is an internal ledge or shelf on the pedestal upon or over which the upper
edge of the lead trap is "tafted " as shown. g is a second flange or protuberance
on the basin and resting upon the taft of the trap, a bedding or filling of suitable
cement being interposed.
is the opening for the trap at the back of the pedestal; this opening is made
sufficiently wide or large to allow of the outlet of the trap c being placed either at
the back of the closet as shown in full lines in the figures or at either side as
indicated in dots, according to the particular position of the soil pipe.
With closets constructed according to my invention the basin does not require to
be connected to the pedestal; it merely rests thereon by means of its flanges, one
of which seats itself upon the upper edge of the pedestal, as already explained, and
the other upon the taft of the lead trap. The lead trap requires no connection to
either the basin or the pedestal except the tafting over of its upper edge, and the
bedding or filling of suitable cement at this part.
Although I prefer that the separate basin should have two supports, namely, one
on the upper edge of the pedestal and the other on the taft of the lead trap as
hereinbefore described, the two supports are not in all cases essential. Where,
for example, the form of the basin will admit of it, the lead trap may be tafted
over the upper edge of the pedestal and the basin rest by means of a flange or
protuberance upon the taft.
Should the basin be broken owing to frost or other cause it can be replaced at a
small expense whereas with existing pedestal water closets a breakage of the basin
necessitates the replacing of the whole apparatus. When the pedestal is of metal
it can be more easily secured to the floor than when of china.
As the joint between the basin and the trap is above the water line no escape of
sewer gas can take place.
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 in respect of pedestal water closets is :-
1. In a
pedestal closet, a basin and a pedestal made in separate pieces and a
lead trap with its upper edge tafted over or upon a part of the pedestal, a flange or
protuberance on the basin resting or seating itself on the taft, substantially as
hereinbefore described.
2. In a
pedestal closet, a basin, a pedestal and a trap made in separate pieces,
the basin having two flanges or protuberances one of which rests or seats itself
upon the upper edge of the pedestal while the other rests or seats itself upon a
portion of the lead trap tafted over or upon a part of the pedestal, substantially 28
hereinbefore described.

page_text: 3. A closet pedestal made separately from the basin and having an internal
ledge or shelf such as e, as and for the purpose herein before described.
4. The improved pedestal water closet herein before described and represented in
the annexed drawings.
Dated this 10th day of December 1891.
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Chartered Patent Agent.