Improvements in the Manufacture of Fire Bars for Use in Furnaces of Boilers, Kilns, Retort Benches, and the like.
Year: 1884

page_text: Improvements in the Manufacture of Fire Bars for Use in
Furnaces of Boilers, Kilns, Retort Benches, and the like.
'
CHARLES ALFRED GLAZBROOK Engineer 85 Delafield Road Charlton in the
County of Kent and THOMAS LOCKERBIE Engineer of 95 Lucas Street Commercial
Road E in the county of Essex do hereby declare the nature of our invention for
THE MANUFACTURE OF FIREBARS FOR USE FURNACES OF BOILERS, KILNS, RETORT
BENCHES &C to be as follows:-
The object is the more economical manufacture of Hollow Furnace bars, and also
the more efficient distribution of the air discharged froin the said bars to the
superposed fuel.
To effect this we prefer to cast or roll the bars in two parts to be joined together
with refractory material in a line horizontal vertical or diagonal to the cross
section A jet of steam corresponding to the depth of the open space at one end of
the bar is introduced in such a manner as to induce a current of air to niix with
the steam and traverse the bars for their whole length, the air being taken off at
suitable outlets at the sides of the bars, thus causing the air to be distributed
amongst the fuel in a line parallel to the Bars.
These Bars can be used with either Steam, Fan, or Power Blast in the manner
hereafter described.
When Steam is used we prefer to make the hollow Bars in a trumpet or Bell
Mouth Form at one end with two or more outlets at the sides. These outlets are
protected by projections of suitable form being fouled by ashes, clinker or dust.
The projections also serve to distribute the air in the manner described above.
For use with a Fan or Power Blast the mouth of the hollow Bars is closed and
is connected by a suitable joint to a hollow cross bearer. The other features of the
bars remaining the same as described above.
These Bars can also be used in Gas Producers, Iron Steel and other Smelting
Furnaces.

page_text: Improvements in the Manufacture of Fire Bars for Use in
Furnaces of Boilers, Kilns, Retort Benches, and the like.
CHARLES ALFRED GLAZBROOK Engineer Ferndale Villa Lundome Road Charlton
by Woolwich Kent THOMAS LOCKERBIE Engineer 95 Lucas Street Commercial
Road London E do hereby declare the nature of our invention for IMPROVEMENTS
IN THE MANUFACTURE OF FIREBARS and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
Our invention which relates to Improvements in the construction or manufacture
of Fire bars for use in Furnaces of Boilers, Retort Houses, Kilns, Steel Iron and
other Melting Furnaces, also Gas Producers or Generators and the like has for its
object the more economical construction or manufacturo of hollow Furnace Bars
and also the more efficient distribution of the air discharged from the said Bars to
the superposed fuel.
To effect this we prefer to cast or roll the bars in two or more parts or sections
to be joined together with refractory material in a line either horizontal vertical or
diagonal to their cross section a jet of Steam corresponding to the depth of the
open space at one end of the bar is introduced in such a manner as to induce a
current of air to mix with the Steam and traverse the whole length of the bar,
proportions of air being taken off at suitable outlets made at the sides of the bars,
thus causing the air to be distributed amongst the fuel in a line parallel to
the bars.
These bars can be used with either Steam fan or Power Blast in the manner
hereinafter described.
For use with steam we prefer to make the bars in a trumpet or bell mouthed
form at one end with two or more outlets at the sides. These outlets being
protected by projections of suitable form from being fouled by ash dust or clinker-
These projections also serving to distribute the air in the manner described above.
For use with a fan, power blast or ordinary blower, we prefer to make the outer
bearing bar hollow and connect the bars to the blast passage by suitable connections
with refractory material to this Blast passage. The other features of bar remaining
as before described.
We will now proceed with reference to the accompanying Sheet of drawings to
describe some of the methods we intend to adopt to carry out our invention Letters
and figures of reference are shown on Fige, 1. 2. 4. 5. 6. 7. 10. 13. 15. 16. 17. but
are also applicable to the other figures.
Fig. 1 represents an Elevation of the inner side of one half of a hollow Bar.
A is a trumpet shaped mouthpiece into which the jet of Steam and air are injected.
B. B. are the apertures through which the blast finds its way to the distributing
Nozzles.
Fig. 2 represents an outside Elevation of the opposite half of the same bar.
The projections C. C₁. are the Spigot and faucet respectively which form the
distributing Nozzles for the blast. The said blast following the direction shown
by the arrows D.

page_text: Fig. 3 shows in Elevation the blowing ends of one complete and two half
vertically jointed hollow bars.
Fig. 4 is a Section of one complete hollow bar, the side D showing in Elevation
the Spigot projections and the side D₁ showing a section through the faucet
projection and blast apertures.
Fig. 5 is similar to Fig. 4 but the projection on the sido D is in Section and that
on the side D¹ is in Elevation.
Fig. 6 represents Sections of bars jointed diagonally. D showing the blast
apertures and D¹ shows the distributing Nozzles in Elevation.
Fig. 7. is a Section of one bar similar to Fig. 6. and is shown detached. D being
a Section through the blast aperture.
Fig. 8 is an outside Elevation of Figs. 6 and 7.
Fig. 9 represents Sections of rolled bars, and also a Section of the cast trumpet
shaped Mouthpiece unto which they are fitted.
Fig. 10 represents Sections similar to Fig. 9. D being a Section through the
distributing Aperture and D showing the distributing nozzles in Elevation.
Fig. 11 and Fig. 12 represent the outside Elevations of what is shown in
Figs. 67 & 8.
Fig. 13 is an Elevation of Figs. 9 & 10. The cast trumpet shaped Mouthpiece
is marked A and the hollow bearing bar E.
Fig. 14 represents the opposite half of Fig. 13.
Fig. 15 represents a horizontal Section of Figs. 9. 10. 13 and 14. A A being the
cast trumpet shaped Mouthpiece and E being the hollow bearer.
Fig. 16 is a cross Section of a horizontally jointed hollow bar. D is a Section
through the blast aperture and D₁ shows the distributing nozzles in Elevation.
The lower portions of the distributing Nozzle marked D and D¹ are made separate
to the bar and are intended to be placed in position when fixing the bars, the
upper portions being cast on the top half of the bar.
Fig. 17 is similar to Fig. 16 but the portions marked D and D¹ are cast on the
lower part half of the bar.
Fig. 18 represents inside plans of Figs. 16. 17. and 19.
Fig. 19 show Elevations of Figs. 16-17 and 18 the two pieces being shown apart
so as to more fully illustrate the construction.
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
1. The Manufacture and adaptation of hollow Firebars in two or more parts
having apertures at one or both sides through which to discharge air or Air
& Steam mixed in a line parallel to the bar.
Dated this fourth day of September 1885