Year: 1887

page_text: Date of Application, 1st Mar., 1887
Complete Left, 30th Nov., 1887
Complete Accepted, 30th Dec., 1887
I, THOMAS WILLIAM TWYFORD of Hanley in the County of Stafford, Manufacturing
Potter, do hereby declare the nature of this invention to be as follows:-
In water closet and other like basins or pans as ordinarily constructed, the inside
interior surfaces or sides of the pan, and the passage or passages leading from the
pan or basin to the trap, or from the trap, commonly called the main outlet or outlets,
are evenly disposed or inade perfectly plain; in consequence of which, paper or the
like, thrown into the pan, and on becoming wet, has a tendency to attach itself, or to
adhere to the sides thereof, and which will remain undisturbed for a considerable
period, in consequence of water being unable to get to the back of it. These
attachments greatly hinder the pan from being efficiently and thoroughly cleansed,
or all matters removed by flushing.
The object of my said invention is to remedy this defect, or defects, by making the
interior surface or surfaces of the main outlet or outlets, and the parts of the surfaces
of the pan leading to, or from the main outlets, fluted, corrugated, channelled, rutted
or unevenly disposed: so that any paper attachment or attachments, is or are readily
broken up, disintegrated and removed by the flush, as the said attachment or
attachments only adhere at intermittent points, which thus allows the flushing water
to get behind it, or between the paper, and the inside surface of the outlet.
In a wash out basin, I prefer to make the flutings or corrugations, extend above the
entrance of the main outlet, and upon the offside thereof; that is, the flutings or
corrugations are preferably placed upon that side of the main outlet, furtherest from
the inlet neck, as the flushing washes with considerable force all matters from the
basin on to that side, which when plain, as in ordinary pans, often becomes choked.
The corrugations or undulations which are preferably disposed in a downward
direction, may be formed on the insides of the other outlets, as well as on the main
outlet leading to the trap.
Dated this Twenty sixth day of February 1887

page_text: COMPLETE SPECIFICATION.
Improvements in Water Closet and other like Basins or Pans.
1. THOMAS WILLIAM TWYFORD of Hanley in the County of Stafford, Manufacturing
Potter, 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:
In water closet, and other like basins, or pans, as ordinarily constructed, the inside
surface or surfaces of the pan, and the passage or passages, leading from the pan or
basin, to the trap, or from the trap, (commonly called the main outlet or outlets) are
evenly disposed, or made perfectly plain, in consequence of which, paper or the like,
thrown therein, and on becoming wet, has a tendency to attach itself, or to adhere to
the sides thereof; and which said adhered paper will remain undisturbed, for a
considerable period, in consequence of the flushing water being unable to get to the
back of it.
Attachments as aforesaid, greatly hinder the pan from being efficiently, and
thoroughly cleansed, by ordinary water flushing.
The object of my said invention, is to remedy this defect, or defects, by making
the interior surface or surfaces of the main outlet or outlets, and the parts of the
surfaces of the pan leading to, or from the main outlets, fluted, corrugated, channelled,
rutted or unevenly disposed; so that any paper attachments, or attachments, is or are
readily broken up, disintegrated, and removed, by ordinary" water flushing, in
consequence of the said attachment or attachments, only adhering at intermittent
points, and thus allows the flushing water to get behind it, or between the paper, and
the inside surface of the outlet, or pan interior.
In a wash out basin, 1 prefer to make the 'flutings or corrugations, extend above the
entrance of the main outlet, and upon the offside thereof; that is, the flutings or
Corrugations, are preferably placed upon that side of the main outlet, furtherest from
the inlet neck, as the flushing washes with considerable force all matters from the
basin on to that side, which when plain, as in ordinary pans, often becomes choked.
The corrugations or undulations, which are preferably disposed in a downward
direction, may be formed on the insides of the other outlets, as well as on the main
outlet leading, to the trap.
I will now proceed to describe, with reference to the accompanying drawing, the
manner in which the same is to be performed.
Figure 1 is a vertical section of a water closet wash out basin, provided with
improvements made according to my invention. Figure 2 is plan of the same,
partly in horizontal section, and which sectional parts, show the flutings or corruga-
tions at the back inside part of the main outlet. It also shows the inlets, outlets, and
flushing means, made according to Letters Patent granted to me, and bearing date
the 15th day of June 1886, and numbered 7954. Figure 3 is a horizontal section on
the dotted lines A B figure 1, and looking upwards. Figure 4 is a vertical section
upon the dotted lines fD figure 1, while figure 5 is a horizontal section of another
form of flutings in the outlet passage as aforesaid. Figure 6 shows a modification of

page_text: the means, for preventing paper attachments to the inside passages, and insides of
water closet, and other sanitary pans or basins.
The same letters of reference indicate corresponding parts in the several figures of
the drawing.
a is the body of a wash out basin, and b is its rim, which is hollow, or has formed
within it, an annular channel or trough c, which forms an auxiliary, or afterflush
chamber.
d is the supply branch, and e is the spreader, for directing the flush into the basin.
is the main outlet, i is the trap, j is the soil pipe, and k is a ventilator, for both soil
pipe, and trap.
The main outlet h, has its back interior surface or surfaces, longitudinally fluted,
ribbed, or corrugated, and which said flutes, ribs or the like, are marked 1, as best seen
in figures 4, 5 and 6.
Usually the interiors of water closet basin main outlets, are made perfectly plain,
and in consequence of which, paper or the like thrown into the pan, and on becoming
wet, attaches itself to the sides, which will remain undisturbed, for a considerable
period, in consequence of the pressure of the flushing water, being upon the front.
These attachments greatly hinder the pan from being effectually, and thoroughly
cleansed.
By making the interior surface or surfaces, of outlets leading from the pan, fluted,
corrugated, channelled, or ribbed, and which are marked 1, any paper attachment, or
attachments, are readily broken up, disintegrated and removed, by ordinary flushing,
in consequence of the attachment or attachments, only adhereing at intermittent or
intermediate points, which thus allows the flushing water, to get behind or between
the paper, and the inside surface of the outlet.
The flutings, corrugations, ribbings, or the like, preferably extend above the
entrance of the main outlet, and upon the offside thereof, as the flushings wash all
matters from the concave of the basin, on to the offside of the said main outlet, which
when plain, as in ordinary basins, often becomes choked.
The corrugations, undulations, or protuberances, are disposed preferably in a
downward direction, and may be disposed on the whole of the outlets, or within the
interior of the basin, if necessary; and further, the said flutings or ribbings, may be
disposed horizontally, instead of vertically. Or the said flutings or ribbings may be
substituted for their equivalents, in the form of raised, or standing up bosses, studs or
protuberances, as represented in figure 6.
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.
First. Fluting, corrugating, ribbing, or raising protuberances, at intermediate
points, the interior surface or surfaces, or parts of the interior surface, or surfaces, of
water closet basin, or pan outlets, substantially as, and for the purpose, as herein
described and set forth.
Secondly, Fluting, corrugating, ribbing, or raising protuberances, at intermediate.
points, the interior surface, or parts of the interior surface of water closet basins or
pans, substantially as, and for the purpose as described.
Dated this Treanty ninth day of Dataho- 1987