IMPROVEMENTS IN FURNACE BARS
Year: 1871

page_text: LETTERS PATENT to Joseph Barker, of No. 146, Falls Road, and
Richard Bean, of No. 2, Leeson Street, both in the Borough of
Belfast, in the County of Antrim, Ireland, for the Invention of
"IMPROVEMENTS IN FURNACE BARS."
Scaled the 11th July 1871, and dated tlie 16th January 1871.
PROVISIONAL SPECIFICATION left by the said Joseph Barker and
Richard Bean at the Office of the Commissioners of Patents, with
their Petition, on the 16th January 1871.
We, JOSEPH BARKER, of No. 146, Falls Road, and RICHARD BEAN,
of No. 2, Leeson Street, both in the Borough of Belfast, in the County
of Antrim, Ireland, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN FURNACE BARS," to be as follows:-
Furnace bars according to our improvements are formed each by a
central portion extending the length of the bar, but very thin in
relation to its depth. Such central portion has other parts or ribs or
wings formed on its opposite sides, so that each bar is formed of the
central portion and the side portions or ribs. The upper surface of each
rib and of the central portion are in a line or thereabouts, or the upper

page_text: surfaces of the ribs, incline slightly from the central portion, but the
under surfaces of the ribs are the deepest at the parts thereof joining
to the central portion and progressively decreasing outwards in an
arched form, which parts may be perforated in a horizontal direction
when it is desired to obtain lightness and also to form channels for the
passage of air to aid in keeping them cool. By these means increased
supply of air to the fuel in the furnace is secured.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Barker and Richard Bean in the Great
Seal Patent Office on the 15th July 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
BARKER, of No. 146, Falls Road, and RICHARD BEAN, of No. 2, Leeson
Street, both in the Borough of Belfast, in the County of Antrim,
Ireland, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of January, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Joseph Barker and Richard Bean,
Her special licence that we, the said Joseph Barker and Richard Bean,
our executors, administrators, and assigns, or such others as we, the
said Joseph Barker and Richard Bean, our executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN FURNACE BARS," upon the
condition (amongst others) that we, the said Joseph Barker and Richard
Bean, our executors or administrators, by an instrument in writing under
our or their hands and seals, or under the hand and seal of one of us or
them, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that we, the said Joseph Barker and Richard Bean,
do hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, that is to say :-
Furnace bars according to our improvements are formed each by
a central portion extending the length of the bar, but very thin in
relation to its depth and other parts or ribs or wings formed on the sides
of such central portion, so that each bar is formed of the central
portion and the side portions or ribs. The upper surface of each rib
and of the central portion are in a line or thereabouts, or the upper
surfaces of the ribs incline slightly from the central portion, but the
under surfaces of the ribs are the deepest at the parts thereof joining
to the central portion and progressively decreasing outwards in an arched
form, which parts may be perforated in a horizontal direction when it
is desired to obtain lightness, and also to form channels for 'the passage
of air to aid in keeping them cool. By these means increased supply of
air to the fuel in the furnace is secured.
But that the Invention may be fully understood we will by the aid
of the accompanying Drawing proceed to describe means pursued by us
Για π
a series of bars arranged according to our Invention; Figures 3 and 4
represent a side and an end view of one of the bars separately.
In thesc Figures A represents the central portion of each furnace
bar extending the length of it, and from the upper surface downwards
to the greatest depth thereof. On the sides of this central portion of
cach bar are formed a series of ribs or wings A', A', and the ribs or
wings of one bar are by preference arranged to break with in place of
being opposite those adjoining of the next, as shown by Figure 2, or
they may interspace as shown by Figure 5, or the arrangements in this
respect may be otherwise varied. When the wings or ribs interspace
with those of adjoining bars we prefer that they form a straight line
on their upper surface, but not to interfere with the arched form under-
neath. We prefer to suspend these bars at their ends on pivots B, so
that they may be capable of a rocking motion obtained by connecting
rods, racks, pinions, springs, or other appliances, the bars to move con-

page_text: nectedly or alternately to the under surface of the centre portion A,
thereby to facilitate their cleansing of spent ashes and generally freeing
them, so as to keep up a good draught without the necessity for opening
the furnace doors and applying a rake to the upper surface of the bars
for that purpose. Furnace bars thus arranged are applicable to various
classes of steam boiler furnaces, dye pans, brewers' coppers, and other
furnaces.
Having thus described our Invention and means which we adopt in
carrying the same into effect we would have it understood that what we
claim is, the arranging furnace bars with parts A and A', substantially
as described.
In witness whereof, we, the said Joseph Barker and Richard
Bean, have hereunto set our hands and seals, this Eleventh day
of July, in the year of our Lord One thousand eight hundred
and seventy-one.