provements in Gully, Grease, and like Traps and Sinks
Year: 1895

page_text: Date of Application, 30th Apr, 1895
Complete Specification Left, 30th Jan, 1896-Accepted, 7th Mar 1896
PROVISIONAL SPECIFICATION
Improvements in Gully, Grease, and like Traps and Sinks
I, ROBERT FRAME, of Glenview House, Larkhall, Joiner and Builder, do
hereby declare the nature of this invention to be as follows
This invention relates to gully, grease, and like traps and to sinks
A gully trap as constructed under my invention consists of a tapered metal box
or casing having a cential opening made in the apex of its bottom which is more
or less cone shaped This box or casing is set in place in a concrete, cement, or
buckwork bed or box formed at the top of the ventilating or gutter branch of the
drain pipe
A perforated cover is jointed to the top of the casing in such manner that by
tuining the cover slightly round it can be readily unlocked and removed. The
central part of the cover, which is solid without perforations, his at its underside
a downwardly projecting bell or cylindrical piece
Fitted removably in the interior of the casing is a sediment box composed of
two concentric rings or cylinders the outer one of which is preferably tapered
whilst the inner one, which forms the opening to the drain pipe and when fitted in
place is just above the opening in the bottom of the casing aforesaid, is either
perfectly cylindrical or fired out at each end These ings or cylinders are
connected together by a horizontal web which constitutes a ring shaped floor or
bottom to the annular space, forming the sediment box, between the inner and outer
cylinders
r
The upper end of the inner cylinder may be beaded over or shaped so as to
form a smooth edge
When the parts are fitted in place the lower edge of the sediment box forms a
water seal in conjunction with the coned bottom of the outer box or casing and
the inner cylinder projects up into the inside of the bell of the cover so as to
form a second water lock or trap in conjunction therewith The arrangement
prevents dirt or stones, etc, gaining access to the diain and choking the drain
trap
When used as a ventilating cover the arrangement whilst permitting free
ventilation prevents stones etc gaining access to the ventilating branch
The parts can be readily removed for inspection or cleaning purposes
The same construction is suitable for grease and like traps
The arrangement may be fitted in conjunction with sinks which I prefer to
construct with two compartments one for clean water and one for dirty water The
compartments are divided by a partition not too high to prevent overflow from the
clean to the dirty compartment and this partition has at or near the bottom a hole
capable of being closed up by a removable plug The trap is fitted at the bottom
of the dirty water compartment
Dated this 29th day of April 1895
HD FITZPATRICK,
Glasgow and London, Agent

page_text: improvements in Gully, Grease, and like Traps and Sinks
I ROBERT FRAME, of Glenview House, Larkhall, Joiner and Builder, do
bereby 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
This invention relates to gully, grease and like traps and to sinks
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings, whereon,
Fig 1 is a section of the gully trap
Fig 2 is a side elevation
Fig 3 is a plau
Fig 4 is a vertical section of the trap adapted for carrying off surface water and
as ventilator for a drain
1g 5 is a section of a sink
A gull trap as constructed under my invention consists of a slightly tapered
metal box or casing a having a cential opening made in the apex of its bottom b
which is more or less cone shaped as shown This box or casing is set in place in
a concrete, cement, or brickwork bed or box formed at the top of the ventilating or
gutter branch of the drain pipe
A perforated cover c is jointed to the top of the casing in such manner that by
turning the cover slightly round it can be readily unlocked and removed In the
drawings I have shown the internal flange c¹ of the cover as made with two
projections e² which can be passed down through two openings c³ made at opposite
sides of the internal circular ledge c* of the casing a so that by merely turning the
cover, when inserted, it is locked in place and by turning it back again it can be
unlocked and removed The central part of the cover, which is solide without
perforations, has at its underside a downwardly projecting bell or cylindrical
piece d
Fitted removably in the interior of the casing is a sediment box e composed of
two concentric rings ou cylinders f, g, the outer one g of which is preferably
tapered whilst the inner one f, which forms the opening to the drain pipe and when
fitted in place is just above the opening in the bottom of the casing aforesaid
can be either made perfectly cyhudrical or it can be flared out (as shown) towards
the lower end where it meets the horizontal web h which constitutes a ring shaped
floor or bottom to the annular space, forming the sediment box e, between the inner
and outer cylinders f and g
The upper end of the inner cylinder may have a cross bar by which it can be
easily lifted and its upper edge can be beaded over or shaped so as to form a
smooth surface
When the parts are fitted in place the lower edge g¹ of the sediment box forms
a water seal in conjunction with the coned bottom b of the outer box or casing a
and the inner part f projects up into the inside of the bell d of the cover so as to
form a second water lock or trap in conjunction therewith
The aangement is such as to prevent dirt or stones, etc, gaining access to the
diain and choking the drain trap
Fig 4 shows the device fitted in place on the ventilating or other branch of a
0
drain pipe
In this case the sediment box e is shown with a flat web or floor h
The device is bedded in concrete k and a circular trough casting / can be placed at
the top for the reception of the cement m is concrete
When used as a ventilating cover the arrangement whilst permitting free
ventilation prevents stones etc, gaining access to the ventilating bianch

page_text: The parts can be readily removed for inspection or cleaning purposes
The same construction is suitable for grease and like traps
The arrangement as shown at Fig 5 may be fitted in conjunction with sinks
which I prefer to construct with two compartments o, p, one o for clean water and
one p for dirty water The compartments are divided by a partition q not too
high to prevent overflow from the clean to the dirty compartment and this
partition has at or near its bottom a hole capable of being closed up by a
removable plug r The trap a is fitted at the bottom of the dirty water
compartment
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
consider novel and desire to claim is
A gully, grease or like trap constructed substantially as hereinbefore described
with reference to the drawings annexed
Dated this 29th day of January 1896
HD FITZPATRICK,
Glasgow and London, Agent.