AN IMPROVED TRAP FOR PIPES BY WHICH LIQUIDS ARE CONVEYED FROM BATHS SINKS LAVATORIES AND THE LIKE TO SEWERS OR TO DRAINS COMMUNICATING WITH SEWERS
Year: 1884

page_text: I JOHN JAMESON of Corbridge-on-Tyne Sanitary Pipe Manufacturer do hereby
declare the nature of the said Invention for "AN IMPROVED TRAP FOR PIPES BY
WHICH LIQUIDS ARE CONVEYED FROM BATHS SINKS LAVATORIES AND THE LIKE TO
SEWERS OR TO DRAINS COMMUNICATING WITH SEWERS," to be as follows:
My said invention consists of a trap constructed as hereinafter described .the
objects of which trap are to prevent sewer gases from entering dwelling houses by
the pipes leading from baths lavatories sinks and the like and to intercept any
solidifiable fat or grease passing therefrom into the said pipes.
The said trap consists of a vessel having a removeable perforated cover and
provided with inlet and outlet pipes on the upper side of each of which pipes a
branch pipe is formed the mouths of which branch pipes are covered with
removeable perforated caps. The outer end of the inlet pipe is somewhat below
the level of the top of the said vessel and is provided with a socket to admit of
connection with the pipes by which the liquids are conveyed from the bath or
other receptacle or place and the lower end of the said inlet pipe communicates
with the said vessel at or near the lower part thereof and the said pipe is so
formed that the fluids passing therefrom into the said vessel are directed onto the
bottom thereof with sufficient force to thoroughly stir up its contents. The outlet
pipe communicates with the said vessel at, the upper part thereof at about the
level of the outer end of the inlet pipe and at the point of junction between the
Baid outlet pipe and vessel a perforated screen or strainer is formed or secured
which prevents the passage of solidified fat and other solid matters from the said
vessel. I prefer to form the whole of the trap of earthenware with the exception
of the perforated cover of the aforesaid vessel which cover I prefer to form of cast
iron and I prefer to form the whole of the trap with the exception of the perforated
covers hereinbefore referred to in one piece.
"
The said trap is connected with the pipes outside the house and acts as
follows:-
The vessel hereinbefore described retains water to the level of the lower part of
the outlet pipe thereby effectually preventing the passage of sewer gas through the

page_text: trap to the inlet pipe which communicates between the house and the trap. The
water passing from the bath sink or other receptacle or place enters the said
vessel at the lower part and by contact with the cold water therein any fat or
grease conveyed by the entering water is solidified and the fat so solidified and.
any other solid matter conveyed by the water is prevented from passing to the
outlet pipe by the aforesaid perforated screen or strainer through the apertures in
which the water passes from tlie said vessel. The fat or other solid matters thus
retained in the said vessel may be readily removed when necessary access thereto
being obtained by removing the perforated cover thercof. Access to the pipes
Icading to and from the trap may be obtained when necessary for flushing or for
other purpose by removing the perforated covers of the branches on the inlet and
outlet pipes. The branch on the said inlet tube permits of the passage of air from
the pipes connected with it thus admitting of a rapid and continuous flow of
• liquid through the said pipes into the trap.

page_text: An Improved Trap for Pipes by which Liquids are Conveyed
from Baths, Sinks, Lavatories, and the like, to Sewers or to
Drains Communicating with Sewers.
COMPLETE SPECIFICATION.
I GRACE PARNEL JAMESON of The Croft Corbridge on Tyne Widow and sole
exccutrix of John Jameson of Corbridge-on-Tyne Sanitary Pipo Manufacturer
deceased do hereby declare the nature of the said Invention for "AN IMPROVED
TRAP FOR PIPES BY WHICH LIQUIDS ARE CONVEYED FROM BATHS SINKS LAVATORIES
AND THE LIKE TO SEWERS OR TO DRAINS COMMUNICATING WITH SEWERS" and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:—
The said invention consists of a trap constructed as hereinafter described the
objects of which trap are to prevent sewer gases from entering dwelling houses by
the pipes leading from baths lavatories sinks and the like and to intercept any
solidifiable fat or grease passing therefrom into the said pipes.
The said trap consists of a vessel (hereinafter termed the body of the trap)
having a removeable perforated cover and provided with inlet and outlet pipes on
the upper side of each of which pipes a branch pipe is formed the mouths of which
branch pipes are covered with removeable perforated caps. The outer end of the
inlet pipe is somewhat below the level of the top of the said vessel and is provided
with a socket to admit of connection with the pipes by which the liquids are
conveyed from the bath or other receptacle or place and the lower end of the said
inlet pipe communicates with the said vessel at or near the lower part thereof and
the said pipe is so formed that the fluids passing therefrom into the said vessel aro
directed onto the bottom thereof with sufficient force to thoroughly stir up its
contents. The outlet pipe communicates with the said vessel at the upper part
thereof at about the level of the outer end of the inlet pipe and at the point of
junction between the said outlet pipe and vessel a perforated screen or strainer is
formed or secured which prevents the passage of solidified fat and other solid
matters from the said vessel. The whole of the trap is by preference formed of
earthenware with the exception of the perforated cover of the body of the trap
which cover is by preference formed of cast iron and the whole of the trap with
the exception of the perforated covers hereinbefore referred to are or may be
formed in one piece.
Having thus described the nature of this Invention I will proceed to describe
the manner in which it is to be performed reference being had to the accompanying
drawings and to the letters and figures marked thereon. Figure 1 of the said
drawings is an elevation of the trap Figure 2 a plan and Figure 3 a vertical section
taken on the line 1 Figure 2. The same letters and figures of reference indicate
the same parts in all the Figures of the drawings.
A is the body of the trap B is the removable perforated cover thereof which is
formed by preference of cast iron. C is the inlet pipe and D is the outlet pipe c¹ is
the branch pipe formed on the inlet pipe C and is the branch pipe formed on
the outlet pipe D. c³ dare the removable perforated covers of the said branch