IMPROVEMENTS IN FURNACE BARS
Year: 1879

page_text: LETTERS PATENT to George Hopewell, of Topsham, near Exeter, in the
County of Devon, Engineer, for the Invention of "IMPROVEMENTS IN FURNACE
BARS."
Sealed the 23rd March 1880 in pursuance of an Order of the Lord Chancellor, and
J CIL T1070
PROVISIONAL SPECIFICATION left by the said George Hopewell at the
Office of the Commissioners of Patents on the 26th June 1879.
GEORGE HOPEWELL, of Topsham, near Exeter, in the County of Devon, Engineer.
"IMPROVEMENTS IN FURNACE BARS."
This Invention has for its object improvements in furnace bars. The improve-
ments relate mainly to taper wrought or rolled iron bars, being designed to ensure
the securing and spacing the bars without the cost and labor of boring and spacing
pins, collars, or washers as heretofore employed. The bars as rolled have formed
thereon at intervals taper, conical, or other liko formed projections which serve as
distance or spacing bits for ensuring correct relative position and distanco between
the several bars. Other bars have in the process of rolling formed therein grooves
or recesses, within which the projecting ends of the distance or spacing bits are
received, whereby the bars are steadied and secured in position. The distance
piece or cross bar has a slot hole formed therein, so that when burnt it may be
raised again level with the furnace bars. In some cases a wrought or cast iron pipe
or roller is used between the several lengths of furnace bars, such pipe or roller
being free to revolve upon its bearings, facilitating the use of the rake and pre-
senting change of surface to tho action of the fire.
The bars may be corrugated, and a plain bar may be used between two bars
having the distance or spacing bits, or a parallel reversible bar may be used
between two taper bars having the spacing bits as described; or where taper and
parallel bars are to be used in combination, the spacing bits may be upon the
parallel bars.
SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chancellor filed by the said George Hopewell in
the Great Seal Patent Office on the 28th March 1880.
GEORGE HOPEWELL, of Topsham, near Exeter, in the County of Devon, Engineer.
"IMPR
PROVEMENTS IN FURNACE DARS."
T
Liam han fan it shinst imnansamanta in fumasa ham Thaim
the Great Deal ratent mice on the 20th March 100V.
GEORGE HOPEWELL, of Topsham, near Exeter, in the County of Devon, Engineer.
SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chancellor filed by the said George Hopewell in
the Great Seal Patent Office on the 25th March 1880.
GEORGE HOPEWELL, of Topsham, near Exeter, in the County of Devon, Engineer.
"IMPROVEMENTS IN FURNACE BARS."
This Invention has for its object improvements in furnace bars. The improvements
relate mainly to rolled taper wrought iron seil bars or cast iron, being designed to

page_text: ensure the securing and spacing the bars without the cost and labour of boring
and spacing pins, collars, or washers as heretofore employed.
The bars as rolled or cast have formed thereon at intervals taper, conical, or
other like formed projections which serve as distance or spacing bits for ensuring
correct relative position and distance between the several bars. Other bars have
in the process of rolling or casting formed therein grooves or recesses within which
the projecting ends of the distance or spacing bits are received, whereby, the bars
are steadied and secured in position: The centre distance piece of cross or bearing
bars has a slot hole formed therein, so that when burnt it may be raised again
le,vel with the furnace bars or reversed. In some cases a wrought or cast iron pipe
or roller is used between the several lenghts or furnace bars, such pipe or roller
being free to revolve upon its bearings, facilitating the use of the rake and presenting
change of surface to the action of the fire. The bars may be corrugated and a
plain bar may be used between two bars having the distance or spacing bits, or a
parallel reversible bar may be used between two taper bars having the spacing bits
as described; or where taper and parallel bars are to be used in combination the
spacing bits may be upon the parallel bars.
Such being the nature and object of this my said Invention I will now proceed
to describe the same in detail, and in order that the same may be fully understood
I have hereunto annexed a Sheet of Drawings, in which, at Fig. 1, in which one
bar has spacing bits, the adjoining bar has a groove or recess rolled or cast whereon,
as the bars may be rolled iron, or steel, or cast iron; Fig. 3, 2, and 3 shew cross
bearing bar B provided with slot and screw adjusting arrangement whereby the
bar B may as burnt be raised or adjusted relative to the furnace bars.
Fig. 4 shew the application of a tube or pipe C between the ends of the bars,
piece being free to revolve on its bearings that a chance of surface or periphery of
such pipe may be exposed to the fire; Fig. 5 shews another form of carrier for the
-tube-C-Figs-6-and-7-shew-bars, one-having-angle-spacing-bits-E, the other
Having thus fully described the nature and particulars of this my said Invention
I would have it understood that I claim as my Invention,―..
a corrugated bar having bits F.
Firstly. The construction, application, and use of bars having spacing bits and
grooves or recesses, as illustrated by Fig. 1 in the Drawings annexed.
Secondly. The application and use of the pipe C and apparatus, for purpose
described and illustrated by Drawings, Figs. 4 and 5.
In witness whereof I, the said George Hopewell, have hereunto set my hand
and seal, this Twenty third day of February, in the year of our Lord One
thousand eight hundred and eighty.
Witnessed by
THEOPHILUS GUBB,
Watchmaker, &c.,
Fore Street,
Topsham, Devon.
GEORGE HOPEWELL. (L.S.)