IMPROVEMENTS IN AND RELATING TO TANK FURNACES FOR THE MANUFACTURE OF GLASS BOTTLES
Year: 1876

page_text: LETTERS PATENT to Francis Dixon Nuttall, of Saint Helens, in the County
of Lancaster, Glass Bottle Manufacturer, for the Invention of "IMPROVEMENTS
IN AND RELATING TO TANK FURNACES FOR THE MANUFACTURE OF GLASS
BOTTLES."
Sealed the 30th September 1876, and dated the 1st April 1876.
PROVISIONAL SPECIFICATION left by the said Francis Dixon Nuttall at
the Office of the Commissioners of Patents on the 1st April 1876.
FRANCIS DIXON NUTTALL, of Saint Helens, in the County of Lancaster, Glass
Bottle Manufacturer. "IMPROVEMENTS IN AND RELATING TO TANK FURNACES FOR
THE MANUFACTURE OF GLASS BOTTLES."
In furnaces as usually constructed only one kind of glass can be operated upon at
once, and that only to a limited degree.
My Invention is designed to work two or more kinds of glass in the same furnace,
and to turn out much more work in a given time from one glass house and furnace
than has ever been done before.
In carrying out my Invention I construct my tank much longer than is custo-
mary, and put one or more partitions across so as to accomodate different sorts of
glass.
I am enabled to use these long tanks by the employment of the variety gas
furnace apparatus, Patented by myself in 1873, No. 3628, and 1874, No. 1079.
The flame goes over the tank from end to end, and is reversed in the usual manner.
There is abundance of room beneath the furnace to have all four regenerators in a
line, and six or more chairs or working holes can be arranged on each side of the
furnace, three under each of the two arches that I usually erect for supporting the
chimney.
I design the house itself with the annealing kilns at each end, and give abundance
of room on each side for the workmen to range over to make up for the less angular
play caused by the greater number of chairs to the side.
These furnaces, in fact, may be said to consist of two ordinary tanks placed end
to end, and a single arrangement of gas flame traversing both.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Francis Dixon Nuttall in the Great Seal Patent Office on the 30th
September 1876.
FRANCIS DIXON NUTTALL, of Saint Helens, in the County of Lancaster, Glass
Bottle Manufacturer. "IMPROVEMENTS IN AND RELATING TO TANK FURNACES FOR
THE MANUFACTURE OF GLASS BOTTLES."
In glass tank furnaces as usually constructed only one kind of glass can be
operated upon at once, and that only to a limited degree.
My Invention is designed to work two or more kinds of glass in the same
furnace, and to turn out much more work in a given time from one glass house and
furnace than has ever been done before.
In carrying out my Invention I construct my tank much longer than is
customary, and put one or more partitions across so as to accomodate different.
sorts of glass.
I am enabled to use these long tanks by the employment of the variety of 1
gas furnace apparatus, Patented by myself in 1873, No. 3628, and 1874,
No. 1079. The flame goes over the tank from end to end, and is reversed in
the usual manner. There is abundance of room beneath the furnace to have all
four regenerators in a line, and six or more chairs or working holes can be
arranged on each side of the furnace, three under each of the two arches that I
usually erect for supporting the chimney. I design the house itself with the
annealing kilns at each end, and give abundance of room on each side for the
workmen to range over to make up for the less angular play caused by the greater
number of chairs to the side.
These furnaces, in fact, may be said to consist of two ordinary tanks placed end
to end, and a single arrangement of gas flame traversing both.
My improved furnace is shown in the Drawings, in which Fig. 1 is an elevation
and Fig. 2 a sectional plan of furnace.
In these A is the rectangular casing carried up through the roof about six feet,
and open at top; B is the furnace arched over in the usual manner; C is a par-
tition in the tank brought up to the level of the working holes, so as to divide
it into two.
I do not limit myself to one partition. The tank might be divided into 3 or
inore divisions, but I prefer only two. D, D, are working holes or chairs; E, extra
space left in centre between the working holes so as to allow of working room;;
F, bridge; G, air space (covered over); H, H, air, and I, I, gas port holes; these
port holes are carried up to the level of the bridge, which again is a trifle higher
than the working holes; J is a column for supporting the casing arches; K, an-
nealing kilns at each end of the furnace, and about twelve feet from it; L, the
valves.
I have now a furnace at work on this plan, and estimate the saving in fucl
effected thereby at about thirty per cent.
Having now described my Invention, and the best mode known to me of carry-
ing it into effect, I wish it to be understood that what I believe to be new and
desire to claim under the herein-before in part recited Letters Patent is-
1st. The arrangement of bottle glass furnace with six working holes on each
side, and with an extra frontage in the centre, or otherwise, to give working
room.
2nd. Arranging the tank as described in two or more divisions so that two or
more kinds of glass can be used at once.

page_text: 3rd. The general arrangement of plant, substantially as and for the purposes
described.
In witness whereof, I, the said Francis Dixon Nuttall, have hereunto set
my hand and seal, this 27th day of September, in the year of our Lord
1876.
Witness,
JOHN EDMUNDSON,
31, Liverpool Road,
St. Helens.
FRANCIS DIXON NUTTALL. (LS.)