Improvements in Firebars for Steam Boilers, Kilns, Furnaces, or Ovens of any description.
Year: 1890

page_text: Date of Application, 6th Aug., 1890
Complete Specification Left, 21st May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Firebars for Steam Boilers, Kilns, Furnaces, or
Ovens of any description.
I, WILFRED LORD, Mechanic, in c/o Mr. William Hill, Spring Field Mill,
Morley, near Leeds, do hereby declare the nature of this invention to be as
follows:-
A firebar, of cast iron or other suitable metal, its cross section being in the form
of an inverted channel iron.
A series of angle ribs are cast with, and transversely to the two side frames, at
the same time, having a diagonal position, when seen in a longitudinal section
view.
In the accompanying drawing, 1 have shewn as a specimen, a bar with its various
views & sections, to be herein described as follows:-
Fig. 1. represents a sectional elevation of the bar, shewing the angle ribs placed
diagonally, for the purpose of strengthening, and preventing undue friction of air
currents, and at the same time inducing a rapid flow of same. The radiation from
the diagonal ribs serving to heat the air in its passage to the flames, thereby
causing a more perfect combustion.
Fig. 2. represents a plan of the face or fireside of the bar, shewing the
transverse (A.) and longitudinal air spaces (B.) half of cach longitudinal air space
being formed on the side frames of the bar.
Fig. 3. represents a plan view of the underside of the bar shewing the junction of
the transverse ribs (C) with the side frames thereof.
Fig. 4. is an end view shewing the bevilled edges of the transverse ribs & side
frames of the bar.
Fig. 5. represents a cross section of the transverse ribs and side frames, shewing
the fillets or steadying pieces at each end of side frames when in position with
adjoining bars.
Figs. 6. 7. 8. & 9. are respective views of air spaces in conjunction with the
transverse diagonal ribs in each case; as a mode of manufacture, the straight air
spaces as shewn in Fig. 2. are preferred.
This bar is very suitable for movable, as well as stationary bars, on account of
its great rigidity, thereby preventing any buckling action: non-liability to fuse, on
account of the equal distribution of metal, attained by the design, and from the
extra amount of air space over any other design of bar.
Dated this 5th day of August 1890.
J. HORSFALL,
Agent.
COMPLETE SPECIFICATION.
Improvements in Firebars for Steam Boilers, Kilns, Furnaces, or
Ovens of any description.
I, WILFRED LORD, Mechanic, c/o Mr. Wm. Hill, Springfield Mill, Morley,
near Leeds, 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 has reference to certain improvements in fire bars for steam boilers,
kilns, furnaces, or ovens of any description.
And my said improvements consist in constructing the fire bars in such manner
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page_text: A Series
that the cross-section shall be in the form of an mverted channel on.
of angle or diagonally disposed ribs are combined with the side frames, (and are
placed transversely to such frames) forming air spaces or passages, whereby the
advantages hereinafter set forth are obtained.
DESCRIPTION OF DRAWINGS.
Fig. 1, is a sectional elevation of fire bar showing the angle or diagonally placed
ribs.
Fig. 2, is a sectional elevation of fire bar showing the angle or diagonally disposed
ribs rounded off at the corners.
Fig. 3, is a plan of the face or fire side of the bar showing air spaces.
Fig. 4, is a plan of underside of bar showing the junction of the angle ribs with the
side frames.
Fig. 5, is an end elevation shewing the bevelled edges of the angle rib and side
frames of the bar.
Fig. 6, is a cross section of angle rib and side frames showing the fillets or
steadying pieces on each end of side frames when in position with adjoining bars.
Figs. 7, 8, 9 and 10 show modified air spaces in conjunction with transverse
diagonal or angle rib.
In carrying out my said invention I construct the fire bar in such a manner that
the cross section of it shall be in the form of an inverted channel iron " (sec
Fig. 6). Combined with the side frames A. are a series of angle ribs B so arranged
or placed diagonally with respect to each other as to form air passages C. The
fire bars may be made of cast iron, or other suitable metal, and when made of cast
iron the angle ribs are preferably cast with the side frames in one piece. The
diagonal position of the ribs B strengthens the air current and prevents undue
friction of such, and at the same time induces a rapid flow of the air.
The radiation from the said diagonal or angle ribs B serving to heat the air in
its passage to the flames, thereby causing more perfect combustion.
The transverse air passages are or may be combined with longitudinal air
passages D (see Fig. 3.) half of each longitudinal air space or passage being formed
on the side frames of the fire bar.
Fillets or steadying pieces E are formed on each end of the side frames.
"
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:"
My improved construction of fire bar may be either "movable or "stationary."
Owing to its rigidity there is no "buckling or twisting of the bar, and it is not
so liable to fuse, as those now in use, owing to the equal distribution of the metal,
and increased air space.
Having now particularly described and ascertained the nature of my said inven
tion, and in what manner the same is to be performed, 1 declare that what 1
claim is
:
1: The construction of fire bars such as shown and described.
2. The construction of fire bars having a diagonal angle bar or bars in combina-
tion with side frames as and for the purposes, such as sliown and described.
3. The construction of fire bars having air spaces or passages in combination
with diagonal angle bars and side frames as and for the purposes such as show
and described.
:
+1 1001
JOHN E. WALSH,
Of Crossley Street, Halifax, and Royal Exchange Chambers, Leeds,
Agent for the Applicant.