IMPROVEMENTS IN STENCH TRAPS
Year: 1868

page_text: LETTERS PATENT to Philip Fanckes Halbard, of Burton-on-Trent, in
the County of Stafford, for the Invention of "IMPROVEMENTS IN
STENCH TRAPS."
Sealed the 5th September 1868, and dated the 9th March 1868.
PROVISIONAL SPECIFICATION left by the said Philip Fanckes Halbard
at the Office of the Commissioners of Patents, with his Petition,
on the 9th March 1868.
I, PHILIP FANOKES HALBARD, of Burton-on-Trent, in the County of
Stafford, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN STENCH TRAPS," to be as follows:-
This Invention has for its object improvements in stench traps to be
applied to the mouths of openings into sewers.
In constructing traps to be used in streets at the mouths of the
openings into the sewer I employ a grating to cover over the opening,
as is usual, and below this grating I form a funnel or pan tapering
downwards; the lower end of this pan dips into water contained in

page_text: the basin or case of the trap. An outlet to the sewer is, as is usual,
formed at one side of the basin or case of the trap; and in order to
prevent gases from the sewer passing back through this outlet and up
through the pan and grating into the street I interpose between the
bottom of the pan and the outlet two transverse partitions at a short
distance apart from one another, the one nearest to the outlet passing
downwards from the top of the basin or case of the trap and projecting
below the bottom of the outlet passage, and the other partition, which is
nearest to the funnel or pan, passing upwards from the bottom of the
basin or case to a levél above the level of the bottom of the outlet
passage. By this arrangement three traps will be formed, in one and the
water level in the traps next the funnel or pan leading downwards from
the grating will be higher than in the trap next the outlet passage.
The partition nearest to the funnel or pan I make to slide into its place
between guides, so as to be readily removable for the purpose of
cleaning the trap.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Philip Fanckes Halbard in the Great Seal Patent
Office on the 9th September 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PHILIP
FANCKES HALBARD, of Burton-on-Trent, in the County of Stafford,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of March, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Philip Fanckes Halbard, Her
special licence that I, the said Philip Fanckes Halbard, my executors,
administrators, and assigns, or such others as I, the said Philip Fanckes
Halbard, my executors, administrators, 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 Inven-

page_text: tion for "IMPROVEMENTS IN STENCH TRAPS," upon the condition (amongst
others) that I, the said Philip Fanckes Halbard, 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.
NOW KNOW YE, that I, the said Philip Fanckes Halbard, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, that is to say :-
This Invention has for its object improvements in stench traps to be
applied to the mouths of openings into sewers.
In constructing traps to be used in streets at the mouths of the
openings into the sewer I employ a grating to cover over the opening,
as is usual, and below this grating I form a funnel or pan tapering
downwards; the lower end of this pan dips into water contained in the
basin or case of the trap. An outlet to the sewer is, as is usual, formed
at one side of the basin or case of the trap; and in order to prevent
gases from the sewer passing back through this outlet and up through
the pan and grating into the street I interpose between the bottom of
the pan and the outlet two transverse partitions at a short distance apart
from one another, the one nearest to the outlet passing downwards from
the top of the basin or case of the trap and projecting below the bottom
of the outlet passage, and the other partition, which is nearest to the
funnel or pan, passing upwards from the bottom of the basin or case to
a level above the level of the bottom of the outlet passage. By this
arrangement three traps will be formed in one, and the water level in
the trap next the funnel or pan leading downwards from the grating will
be higher than in the trap next the outlet passage. The partition
nearest to the funnel or pan I make to slide into its place between the
guides, so as to be readily removable for the purpose of cleaning
the trap.
And in order that my said Invention may be most fully understood
and readily carried into effect I will proceed to describe the Drawing
hereunto annexed.

page_text: DESCRIPTION OF THE DRAWING.
The Drawing shows a vertical section of a stench trap constructed
according to my Invention. a, a, is a casing of iron cast by preference
in one piece; it has at the top a square or oblong opening, into which
the grating 6 is fitted. c is a moveable partition dividing the casing a
into two compartments; the partition is able to be introduced through
the opening for the grating, and it is received into guides a¹, a¹. The
compartment under the grating 6 serves to receive and retain the solid
materials entering by the grating, and the side compartment receiving
only, the liquid forms a deep and effective trap, another partition a²
cast in one piece with the casing dipping deep down into the liquid
which it contains. a³ is the overflow spout from the casing passing
out from the upper part of the side compartment of the casing and
coupled with the sewer. The grating 6, as will be seen, is cast together
with a funnel or pan 61 open at the bottom; or this funnel or pan
might be separate from the grating; its open end, it will be observed,
descends considerably below the top of the partition c, so that it dips
some distance into the liquid in the first compartment of the case.
Stink traps thus arranged are readily constructed and cleaned in
consequence of the partition c being moveable, and a double trapping is
obtained in the trap first at the bottom of the hopper or pan b¹, and
second at the partition a²; a third trapping may also be obtained at
the outlet.
In witness whereof, I, the said Philip Fanckes Halbard, have
hereunto set my hand and seal, this Seventh day of September, in
the year of our Lord One thousand eight hundred and sixty-
sight