AN. IMPROVED STENCH TRAP AND SINK PIPE PROTECTOR."
Year: 1865

page_text: LETTERS PATENT to William Henry Gummer, of Rotherham, in the
County of York, for the Invention of "AN. IMPROVED STENCH TRAP AND
SINK PIPE PROTECTOR.""
Sealed the 23rd February 1866, and dated the 29th August 1865.
PROVISIONAL SPECIFICATION left by the said William Henry Gummer
at the Office of the Commissioners of Patents, with his Petition, on the
29th August 1865.
L, WILLIAM HENRY GUMMER, of Rotherham, in the County of York, do
hereby declare the nature of the said Invention for "AN IMPROVED STENCH.
TRAP AND SINK PIPE. PROTECTOR," to be as follows:-
This Invention is intended to be applied to the top of sink or other vertical
drain pipes to prevent the return of any stench or effluvium, and also to
protect the same against being stopped up by the admission of any solid:
matter. The top or head of the sink or other pipe is formed or provided with
a socket or cup-shaped enlargement having a projecting flange or lugs outside
the upper edge. To this flange (or to the lugs) is rivetted or otherwise
fastened a flat or slightly dished plate, the central part of which is perforated
or formed into a grate, and is provided beneath with a short trumpet-shaped

page_text: tube, the lower end of which dips into a cup suspended in the centre of the
socket or cup-shaped enlargement at the head of the pipe..
The lower edge of the trumpet-shaped tube dipping into the cup makes a
water joint, and effectually prevents the return of any stench or effluvium,
whilst the cup itself retains any solid or other matter which might be likely
to stop the pipe, at the same time that it allows any liquid or other matter not
likely to stop the pipe to flow freely over its edge and pass down the latter..
This stench trap prevents the possibility of any servant or unauthorized person
from untrapping the pipe, and also allows great facility for cleaning the trap
and pipe when required, as upon removing the grate or perforated plate at
the top it brings the whole of the trap away with it, leaving only the pipe with
its socket or cup-formed enlargement, as above-named.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Henry Gummer in the Great Seal Patent Office
on the 28th February 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HENRY GUMMER, of Rotherham, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of August, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-ninth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said William Henry Gummer, Her special licence that the
said William Henry Gummer, my executors, administrators, and assigns, or
such others as I, the said William Henry Gummer, my executors, admi-
nistrators, and assigns, should at any time agree with, and no others,
from time to time, and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within.
the United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an. Invention for "AN IMPROVED STENCH TRAP AND SINK PIPE
PROTECTOR," upon the condition (amongst others) that I, the said William
Henry Gummer, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent,

page_text: NOW KNOW YE, that I, the said William Henry Gummer, do hereby
declare the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement in writing, and on reference to the accompanying Sheet
of Drawings, that is to say :-
This Invention is intended to be applied to the top of sink, or other drain
pipes to prevent the return of any stench or effluvium, and. also to protect the
same against being stopped up by the admission of any solid matter.
The
top or head of the sink or other pipe is formed or provided with a socket or
cup-shaped enlargement having a projecting flange on the upper edge, which
supports a flat or slightly-dished plate, the central part of which is perforated
or formed into a grate, and is provided beneath with a short trumpet-shaped
tube; the lower end of this tube dips into a cup suspended in the centre of
the socket or cup-shaped enlargement at the head of the pipe.
The lower edge of the trumpet-shaped tube dipping into the cup makes a
water joint and effectually prevents the return of any stench or effluvium,
whilst the cup itself retains any solid or other matter which, might be likely
to stop the pipe, at the same time that it allows any liquid or other matter
not likely to stop the pipe to flow freely over its edge and pass down the
latter. This stench trap prevents the possibility of any servant or unauthorized
person from untrapping the pipe, and also allows great facility for cleaning
the trap and pipe when required, as upon removing the grate or perforated
plate at the top it brings the whole, of the trap away with it leaving only the
pipe with its socket or cup-formed enlargement, as above.
Such being the nature and object of my said Invention for "An Improved
Stench Trap and Sink Pipe Protector," I will now proceed to describe more
in detail the manner in which the same is to be or may be performed or
carried into practical effect. And in order that the same may be distinctly
understood, I have annexed hereunto a Sheet of Drawings illustrative thereof,
and have marked the same with figures and letters of reference corresponding
with those in the following explanation thereof, that is to say :-
In the annexed Drawing Figure 1 is a vertical section of a stench trap
constructed according to my Invention, and Figure 2 is a plan view of the
same with the upper or loose grate removed.
a, a, is a cup-shaped enlargement or socket at the head of the pipe; b, b, is
a loose grating or perforated plate; c, c, is a short trumpet-shaped tube
having attached to it (or cast with it) a grate d, d, from the centre of which
the cup or inverted bell e, e, is suspended by the rod f,f. The lower edge of
the trumpet-shaped tube c, c, dipping into the cup e, e, forms a water joint, as

page_text: before mentioned, whilst the latter retains any solid matter which might be
likely to stop the pipe. Upon removing the loose grating or perforated
plate b, b, the whole trap may be taken out and cleaned.,
Figure 3 is a vertical section, and Figure 4 a plan view of a modification
of the above, wherein the fast grate d, d, and suspending rod f,f, are dis-
pensed with, the cup e, e, being supported by arms f*, f*
Figures 5 and 6 are similar views of a further modification of my. Invention
adapted for street, stable, yard, and other purposes, the chief alteration being
the addition of a loose sludge box 9; 9, which can be removed and cleaned
without untrapping the pipe, by merely raising the loose grate b, b, and.
lifting the box out by means of the handle h, h.
Having now described the nature and object of my said Invention for "An
Improved Stench Trap and Sink Pipe Protector," together with the manner
in which the same is to be or may be performed or carried. into practical
effect, I would remark, in conclusion, that I claim as my Invention the
improved stench trap and sink pipe protector, as shewn in the Drawings.
annexed and herein-before described, or any mere modification or imitation.
thereof; and especially I claim the combination of the trumpet-shaped
tube c, c, with the inverted bell or cup e, e, in the manner and for the purpose
herein set forth.
In witness whereof, I, the said William Henry Gummer, have hereunto
set my hand and seal, this Twenty-first day of February, One thousand
eight hundred and sixty-six.