Improvements connected with Fuel Economisers or Feed-water Heaters.
Year: 1896

page_text: Date of Application, 23rd Mar., 1896
Complete Specification Left, 23rd Dec., 1896-Accepted, 13th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements connected with Fuel Economisers or Feed-water
Heaters.
I, Sir EDWARD GREEN, Baronet, of the Firm E. Green and Son Limited,
of Wakefield, County of York, Fuel Economiser Manufacturer, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to construct lids of fuel economisers that they
can be inserted edge on when in one position into the apertures made for their
reception and through into the boxes and then be turned a quarter round and lifted
to fit such apertures without necessitating packing rings to make the joint or seam
watertight yet be capable of ready removal for repairs or for renewal of pipes and
the like.
The lid is fixable by a bridge and Lewis bolt, or its equivalent, the legs of the
bridge resting on the side ridges of the box for resistance.
According to my invention I make the upper box with an arched central part in
the length of the box and bore a taper hole centrally in posicion over where each
economiser tube is situate, this hole is carried down from the crown of the arch to
the lower edge or depth of inuer flanges one being on each side of the upper portion
of the box.
The lid is circular and also of arched form to correspond with the arch of the
box as to be about flush therewith when in place, the taper of edge of the lid
extending from the top of the arch at diametrically opposite sides thereof but said
taper by the slope to the base is continued to the quarter circle downwardly to the
depth corresponding to that of the inner thickness of the side walls of the box, or
nearly so.
Dated this 23rd day of March 1896
R. CORE GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Sir Edward Green, Bart.
Improvements connected with Fuel Economisers or Feed-water
Heaters.
1, Sir EDWARD GREEN, Baronet, of the Firm E. Green and Son Limited,
of Wakefield, County of York, Fuel Economiser Manufacturer, 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:-
The object of this invention, is to construct lids of fuel economisers that they can
be inserted edge on when in one position into the apertures made for their
reception and through into the boxes and then be turned a quarter round and lifted
to fit such apertures without necessitating packing rings to make the joint or seam
watertight yet be capable of ready removal for repairs or for renewal of pipes and
the like.

page_text: Figure 1 of the annexed drawings is a section of a top box of a fuel economiser
as of my invention, the section being on line x, x, of Figure 2 which is a plan of
a portion of a top box with the lid removed.
Figure 3 is a section on the line y, y, of Figure 2.
Figure 4 similar section of the box, as at Figure 3, except that the lid is in
place.
Figure 5 one side elevation of the lid. Figure 6 the other side elevation thereof,
or of views at right angles to each other.
Figure 7 a plan of the lid.
According to my invention, I make the upper box A with an arched central
part B in the length of the box, and bore a taper hole C centrally in position over
each economiser tube sccket D, this taper hole is carried down from the crown
of the arch as from a to the lower edge or depth 6 of inner flanges E, one being on
each side of the upper portion of the box A.
The lid F is circular and also of arched form to correspond with the arch of the
box as to be about flush therewith when in place, as seen at Figure 4, the taper
of edge of the lid extends from the top of the arch at diametrically opposite sides
thereof, as from c and d, but said taper by the slope c to the base d is continued
downwardly to the depth corresponding from f to a that of which coincides in
thickness to the side walls g to h of the box A, or nearly so.
The lid is fixable by a bridge and Lewis bolt, or its equivalent, the legs of the
bridge resting on the side ridges of the box for resistance.
By the formation of the conical and cylindrical hole partly in the arched portion
and partly in the side walls of the upper box and making the lid to a corresponding
shape, ovality is produced, so that the lid can be dropped into and through the hole
in the arch on its edge, and then when turned in a proper direction and lifted will
bring the arch of the lid to coincide with the arch of the box and be about, or quite,
flush therewith, the corresponding major and minor diameter of the lid and of the
box coming in contact to make a tight joint.
I have particularly describe this invention as applied to an arched top box of a
fuel economiser but it is obvious that it can be made to apply to flat topped top
boxes and to flat lids without departing from the special feature involved,
i.e. producing ovality from a conical cylindrical hole. This will be observable by
examining the dotted lines shown at Figures 5 and 6, for so long as the contact
edges are of curved formation to produce the continuous major and minor diameters
both on the lid and in the box, the lid can be put through the box hole and be
turned and lifted to fit, as previously described.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. An arched form of upper body of fuel economiser and feed water heater top
boxes, the taper hole or holes therein, a corresponding arched lid with taper edges,
as and for the purposes set forth, the construction being substantially shown by the
annexed drawings.
2. In apertures of top boxes and in lids therefor, producing ovality by boring
cylindrical tapered holes and by turning cylinder taper lids, and so shaping or
grooving said apertures and lids as to produce continuous contact surfaces having
corresponding major and minor diameters, as set forth.
TLD 1900
R. CORE GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Sir Edward Green, Bart.
R. CORE GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Sir Edward Green, Bart.