An Improvement in Grease, Silt, and Gulley Traps.
Year: 1893

page_text: Date of Application, 7th Feb., 1893
Complete Specification Left, 7th Nov., 1893-Accepted, 13th Jan., 1894
PROVISIONAL SPECIFICATION.
An Improvement in Grease, Silt, and Gulley Traps.
I, WILLIAM FRANKLIN, of Kinsman Green, near Luton, in the County of
Hertford, Surveyor, do hereby declare the nature of this invention to be as
follows:-
My invention relates to the construction of a trap such as is employed for
catching greasy matters, silt and other more or less solid substances on their way to a
drain or sewer, the object which I have in view being to afford ready means of
clearing out the matters deposited in the trap. For this purpose, I make,
preferably in earthenware or like material, an open topped pot or vessel having a
straight side which may be upright or inclined, and the other side and bottom
forming a segment of a cylinder, the circle of which is struck from a centre near
the top of the straight side. I provide a flap, which may be of metal, and which is
hinged at this centre point to the straight side and usually hangs down close to that
side. The lowest part of the flap is perforated with holes facing a passage at the
lower part of the straight side. Through the perforations and passage the sewage
liquid flows while the solid matters are kept back by the flap. When it is desired
to clear out the trap, the flap is raised by chains or otherwise and its edge sweeping
along the cylindrical surface of the pot clears all deposit off and brings all the solid
matters up to a position where they can be removed from the flap.
The flap and its hinge may be so arranged that on raising the grating over the
trap, the flap with the solid matters on it can be turned quite over discharging the
solid matters on the ground above.
A trap such as is described may have combined with it a flushing siphon, which
may be interposed between the flap and the straight side, the flap being in this case
hinged to a cross piece.
Dated this 7th day of February 1893.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in Grease, Silt, and Gulley Traps.
I, WILLIAM FRANKLIN, of Kinsman Green, near Luton, in the County of
Hertford, Surveyor, 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 :-
My invention relates to the construction of a trap such as is employed for
catching greasy matters, silt and other more or less solid substances on their way
to a drain or sewer, the object which I have in view being to afford ready means of
clearing out the matters deposited in the trap. For this purpose I make as shewn
in section by Fig. 1 and in plan by Fig. 2 of the accompanying drawings preferably
in earthenware or like material an open topped pot or vessel having a straight
side A which may be upright or inclined and the other side and bottom B forming
a segment of a cylinder, the circle of which is struck from a centre C near the top
of the straight side A. I provide a flap D, which may be of metal, and which is
hinged at C and usually hangs down close to the side A. The lowest part of the
flap is perforated at d with holes facing a passage at the lower part of A. Through
[Price Ad I

page_text: the perforations and passage the sewage liquid flows to a discharge siphon or
elsewhere while the solid matters are kept back by the flap the lower edge of which
may be faced with caoutchouc or other packing. When it is desired to clear out
the trap, the flap is raised by. a chain E, or otherwise and its edge sweeping along
the cylindrical surface B clears all deposit off and brings all the solid matters up to
a position where they can be readily removed from the flap. The flap may be
curved as shewn in Fig. 3. The flap and its hinge may be arranged as shewn in
Figs. 4 and 5 so that on raising the grating over the trap, the flap with the solid
matters on it can be turned quite over discharging the solid matters on the
ground above.
A trap, such as is described, may as shewn in Figs. 1 and 2 have combined with
it a flushing siphon F..
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
claim is :-
+
1. Agulley trap having a hinged flap arranged and operated substantially, as
herein described with reference to the accompanying drawings.
2. The combination of a flushing siphon with a gulley trap such as is above
referred to.
Dated this 7th day of November 1893.
ABEL & IMRAY,
Agents for the Applicant..