Improvements in Grease Traps.
Year: 1896

page_text: Improvements in Grease Traps.
We, J. DUCKETT AND SON LIMITED of Sanitary Ware Works, Burnley, in the
County of Lancaster, Sanitary Ware Manufacturers, and FRED SMITII BUTTON of
13, Palatine Square, Burnley aforesaid, Civil Engineer, do hereby declare the
nature of this invention to be as follows:-
Our invention consists of improvements in Traps or Gulleys for the interception
of grease.
In grease traps as usually made, reliance is placed on the water seal or depth
of trap mainly for the interception of grease.
Our improvement consists of a loose perforated tray or condenser placed inside
the trap, and supported by projecting lugs or other suitable rest. The condenser
is fixed between the topwater level and the underside of the upper grating, it is
also below the inlet drain.
The object of this loose perforated tray or condenser is to cool the hot greasy
water as it is discharged into the trap or gulley, and by so doing to condense or
congeal the grease, whereby a large percentage of it is intercepted and prevented
from passing forward to the drain or sewer.
The usual perforated mud-box may be fixed below the water line in the trap,
and the handle may extend upward and through the said perforated tray or
condenser, so that both mud-box and tray may be removed by one lift for cleansing
purposes.
Preferably the holes in the tray or condenser are not plumb under those of the
upper grating, so that the greasy water may be obstructed in its fall.
F. RICHMOND,
12 Standish Street, Burnley, Agent for the Applicants.
Improvements in Grease Traps.
We, J. DUCKETT AND SON LIMITED of Sanitary Ware Works, Burnley, in the
County of Lancaster, Sanitary Ware Manufacturers, and FRED SMITH BUTTON of
13, Palatine Square, Burnley aforesaid, Civil Engineer, 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 :-
Own invention consists of improvements in Trone of Gullows for the interception.

page_text: In grease traps as usually made, reliance is placed on the water seal or depth
of trap mainly for the interception of grease.
Our improvement consists of a loose perforated tray or condenser placed inside
the trap, and supported by projecting lugs or other suitable rest. The condenser
is fixed between the topwater level and the underside of the upper grating. It is
also below the inlet drain.
The object of this loose perforated tray or condenser is to cool the hot greasy
water as it is discharged into the trap or gulley, and by so doing to condense or
congeal the grease, whereby a large percentage of it is intercepted and prevented
from passing forward to the drain or sewer.
The usual perforated mud-box may be fixed below the water line in the trap,
and the handle may extend upward and through the said perforated tray or
condenser, so that both mud-box and tray may be removed by one lift, for cleansing
purposes.
Preferably the holes in the tray or condenser are not plumb under those of the
upper grating, so that the greasy water may be obstructed in its fall.
For the purpose of more clearly explaining our invention we have prepared a
drawing and have placed letters of reference thereon.
Fig. 1 shews section of a gulley with trap or condenser supported on lugs.
Fig. 2 shews plan of gulley top and grating. Fig. 3 shews sectional plan of gulley
with loose perforated tray or condenser in position.
A is the top water line of trap. Situated between the top water level and the
inside of upper grating D) is the loose tray or condenser C, perforated with holes as
shewn, and supported by projecting lugs or other suitable rests B B. The holes
in the loose tray or condenser are out of plumb with those of the upper grating D
so that the greasy water may be obstructed in its fall. An access lid F is provided
with air-tight joint for ready access to the drain.
The handle G of the mud box E protrudes through the loose perforated tray or
condenser C, so that both mud box and tray may be readily removed by one lift
for cleansing purposes.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
The use of a tray or some such condenser as C placed inside a trap or gulley
substantially as and for the purpose herein described and illustrated.
Dated this 27th day of July 1897.
RICHMOND & Co.,
12 Standish Street, Burnley, Agents for the Applicants.