IMPROVEMENTS IN FURNACES
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
NEWCOMB, of Bermondsey, Machinist, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Eighteenth day of
January, (One thousand eight hundred and forty-nine;) in the twelfth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Thomas Newcomb, my exors, admors, and assigns, Her especial
licence, full power, sole privilege and authority, that I, the said Thomas
Newcomb, my exors, adiñors, and assigns, and such others as I the said
Thomas Newcomb, my exors, admors, or assigns, should at any time agree
with, and no others, from time to time and at all times during the term of
years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of "IMPROVEMENTS IN FURNACES;" in which said Letters Patent is
contained a proviso, that I, the said Thomas Newcomb, shall cause a particular
description of the nature of my said Invention, and in what manner the same
is to be performed, by an instrument in writing under my hand and seal, to be
inrolled in Her said Majesty's High Court of Chancery within six calendar
months next and immediately after the date of the said in part recited Letters
Patent, as in and by the same, reference being thereunto had, will more fully
and at large appear.

page_text: NOW KNOW YE, that, in compliance with the said proviso, I, the said
Thomas Newcomb, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described and
ascertained in and by the following statement thereof, reference being had to
the Drawings hereunto annexed, and to the figures and letters marked thereon,
that is to say-
My Invention consists of a mode of arranging and working the fire bars
of furnaces. And in order that the same may be fully understood, and
readily carried into effect, I will proceed to describe the Drawings hereunto
annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows the longitudinal section of a furnace constructed with my
improvements; Figure 2 is a front view; Figure 3, a side view; and Figure 4
is a transverse section. In each of these Figures the same letters are used to
indicate similar parts. a, a, are a series of inclined bars, each moving between
inclined guides a', a³, formed or affixed on the side frames of the furnace. The
bars a have each projections a², which by means of pin joints are attached to the
longitudinal bars b, b, c, c, every alternate bar being attached to the longitudinal
bars b, b, the other alternate fire bars a being attached to the longitudinal
bars c, c, so that one half of the fire bars a will be moving back at the time
the other half of the bars will be moving forward, by which any clinkers will
not only be broken up, but also the fuel will be advanced in a direction
from the front to the back of the furnace. Motion is communicated to the
fire bars by means of eccentrics b¹, c', and the axis d; the excentrics b¹ give
motion to the longitudinal bars 6; and the excentrics c' give motion to the
is longitudinal bars c, and motion given to the axis d by means of the
drum or pulley e, which receives motion by means of an endless strap or band
driven by the engine. On the axis of the drum or pulley e there is fixed a
pinion f, which takes into and drives the cog wheel g, on the axis of which
wheel there is a pinion h, which takes into and drives the cog wheel i fixed on
the axis d. In order to move the fuel on the dead plate j there is a forcer k
which is carried and moved by arms 7, affixed to the longitudinal bars b, b, by
which it receives a to and fro motion on the dead plate. In some cases I
construct the furnaces with a central supporting bar, as shewn by the sectional
view of parts Figure 5, such bar being formed hollow and communicating
with the water ways 2, 3, in order that a constant supply of cold water
Imay be caused to flow through the supporting bar to aid in keeping the parts
cool.

page_text: Having thus described the nature of my Invention, and the manner. in
which the same is to be performed, I would have it. understood that I am
aware that furnaces have before been constructed having moving bars for
breaking up the clinkers which form on the fire bars of furnaces. I do not,
therefore, claim the giving motion to fire bars generally, but only the means
herein described, whereby they, being inclined and caused to move in an
inclined direction in suitable guides, are alternately connected to longitudinal
reciprocating bars such as are herein described.
In witness whereof, I, the said Thomas Newcomb, have hereunto set
my hand and seal, this Eleventh day of July, in the year of our
Lord One thousand eight hundred and fortening
THOMAS (L.S.) NEWCOMB.
AND BE IT REMEMBERED, that on the Thirteenth day of July, in
the year of our Lord 1849, the aforesaid Thomas Newcomb came before
our said Lady the Queen in Her Chancery, and acknowledged the Speci-
fication aforesaid, and all and everything therein contained and specified, in
form above written. And also the Specification aforesaid was stamped
according to the tenor of the Statute made for that purpose.
Enrolled the Eighteenth day of July, in the year of our Lord One
thousand eight hundred and forty-nine.