IMPROVEMENTS IN FURNACE BARS
Year: 1884

page_text: I EDWARD NEWBOLD of 14 Fernlea Road, Balham in the County of Surrey,.
Manufacturer of Furnace Bars do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN FURNACE BARS to be as follows:-
My invention relates to improvements in the furnace bar for which Letters
Patent were granted to me on the 7th day of May AD 1880 No 1868 the said
furnace bar being provided with my alternate grooves and with teeth or lugs on
its sides. My invention further relates to improvements in the bearers for the
said bars.
My invention consists in forming a vertical groove or flute upon each of the
teeth or lugs of the said bar and grooves or channels on the upper surface of each
of the said teeth or lugs in connection with the said vertical groove or flute upon
its side. I thus ensure the maximum amount of air passing over the top of the bar
while the metal in contact with the fire is reduced to the minimum.
My invention further consists in making the bar of trapezoidal form in cross
section the under surface being narrower than the top, or in forming the bar square
and providing the under surface with grooves or channels in the same manner as
the top of the said bar, thus making the bar reversible.
My invention further consists in forming a central longitudinal aperture through
the bar either as a passage for air, or for the purpose of inserting a fixed or
movable key or rod to assist in removing the said bars from the furnace and also in
forming wedge-shaped lugs upon the under surfaces or upon the sides of the said
bars for the purpose of retaining the said bars in position and at such distances
apart as may be required.
.
My improvements consist lastly in providing the bearers with transverse grooves
or spaces for the reception of the said furnace bars so as to support the said bars at
equal or other distances as may be necessary the form of the said grooves or spaces
corresponding to that of the bars. My improved bearer bars may be cast solid or
may be formed of a double bar having a longitudinal opening for the reception of
a plate in which the said grooves, or spaces are formed, the said plate being secured
to the said double bar by bolts or otherwise, in such a manner as to admit of the
said plate and the bars resting upon it being raised or lowered as desired.
...
T
T
1001
THOS N. PALMER,
For the Petitioner.

page_text: I EDWARD NEWBOLD of 14 Fernlea Road, Balham in the County of Surrey,
Manufacturer of Furnace bars, do hereby declare the nature of my said Invention
for "IMPROVEMENTS IN FURNACE BARS" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following:
statement, reference being had to the accompanying drawing forming part of this
specification :-
My invention relates to improvements in the furnace bar for which Letters
Patent were granted to me on the 7th day of May A.D 1880, No 1868, the said
furnace bar being provided with my alternate grooves and with teeth or lugs on
its sides. My invention further relates to improvements in the bearers for the
said bars.
My invention consists in forming a vertical groove or flute upon each of the
teeth or lugs of the said bar and grooves or channels on the upper surface of each
of the said teeth or lugs in connection with the said vertical groove or flute upon
its side. I thus ensure the maximum amount of air passing over the top of the
bar while the metal in contact with the fire is reduced to the minimum.
My invention further consists in making the bar of trapezoidal form in cross-
section the under surface being narrower than the top, or in forming the bar square
and providing the under surface with grooves or channels in the same manner as
the top of the said bar, thus making the bar reversible..
My invention further consists in forming a central longitudinal aperture through.
the bar either as a passage for air, or for the purpose of inserting a fixed or movable
key or rod to assist in removing the said bars from the furnace, and also in forming
wedge-shaped lugs upon the under surfaces. or upon the sides of the said bars for
the purpose of retaining the said bars in position and at such distances apart as
may be required..
My improvements consist lastly in providing the bearers with transverse grooves
or spaces for the reception of the said furnace bars so as to support the said bars at
equal or other distances as may be necessary the form of the said grooves or spaces
corresponding to that of the bars. My improved bearer bars may be cast solid or
may be formed of a double bar having a longitudinal opening for the reception of
a plate or bar in which the said grooves or spaces are formed, the said plate or bar
being secured to the said double bar by bolts or otherwise, in such a manner as to
admit of the said plate or bar and the bars resting upon it being raised or lowered
as desired.
DESCRIPTION OF THE DRAWING.
Figure 1 is a plan of a portion of one of my improved bars.
Figure 2 is a side elevation of the same.
Figure 3 is a section of the same on the line x x Figure 1.
Figure 4 is a section of one of my improved bars of trapezoidal form.
Figure 5 is a side elevation of a portion of one of my improved bearer bars..
Figure 6 is a section of the same on the line y y Figure 5.
Like letters indicate like nusto in all the fo

page_text: the other side of the bar and intersect the oblique grooves or channels b which
connect the vertical grooves or flutes c between the lugs or teeth a.
The bar may
be square in cross-section as shown in Figure 3 or of trapezoidal form as shown in
Figure 4. When the bar is square the underside may be grooved in the same
manner as the upper surface of the bar, thus making the bar reversible.
I also form in the said bar a central longitudinal aperture d of any suitable form
throughout its entire length which may be used either as a passage for air or for
the insertion of a key or rod to assist in removing the bars from the furnace.
I also provide the said bars at each end on their undersides with wedge-shaped,
bevilled, or other suitable lugs e for the purpose of keeping the said bars in position
in my improved bearers. In the case of bars used in existing bearers the said lugs
are formed on the sides of the bar either at the ends, or in the centre, or both; for
the purpose of retaining the said bars at the desired distances apart.
My invention further consists in improved bearers for the said bars shown in
Figures 5 and 6. The said bearer bars consist of an upper bar f and a lower bar g,
the said upper bar being formed with grooves or spaces f¹ to receive the said
furnace bars and support them at equal or other distances as may be necessary.
The said spaces f' are of a form corresponding to that of the bars intended to be
inserted therein. The upper portion of the bar f is of conical or tapering form
in cross-section and the said bar may be solid or have a longitudinal channel or
air space in its underside throughout its length as shown in Figure 6.
The lower bar g is formed with a central longitudinal groove g' for the reception
of the upper barf and the said barf is holted in the said bar g by means of
bolts gll passing through vertical slots g111 in the bar g so that the barf can be
raised or lowered as desired. Or the said bars may be secured together in any
other suitable manner which will admit of the vertical adjustment of the bar f; or
the bars fand g may be cast solidly together.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
First In a furnace bar, of square or trapezoidal form, in cross-section, the
vertical grooves a¹ and oblique grooves all in combination with the vertical grooves
or flutes c and oblique grooves b, the said oblique grooves being formed on the
upper or on both the upper and under sides of the said bar substantially as shown
and described.
Second-The wedge-shaped, bevilled, or other suitably formed lugs e on the
under surface or on the sides of the bar, and the central longitudinal aperture d
substantially as shown and described.
Third the improved bearer bars consisting of the portions ƒ and g bolted or
otherwise secured together in such a manner as to admit of the vertical adjustment
of the bar f, or cast solidly together, substantially as set forth.
Dated this 28th day of October 1884.
EDWARD NEWBOLD.