IMPROVEMENTS IN DANDY ROLLERS USED IN THE MANUFACTURE OF PAPER
Year: 1868

page_text: LETTERS PATENT to John Whitehead, of Manchester, in the County
of Lancaster, for the Invention of "IMPROVEMENTS IN DANDY ROLLERS
USED IN THE MANUFACTURE OF PAPER."
Sealed the 5th February 1869, and dated the 7th August 1868.
PROVISIONAL SPECIFICATION left by the said John Whitehead at the
Office of the Commissioners of Patents, with his Petition, on the
7th August 1868.
I, JOHN WHITEHEAD, of Manchester, in the County of Lancaster, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
DANDY ROLLERS USED IN THE MANUFACTURE OF PAPER," to be as follows:-
This Invention consists in an improved mode of constructing the
dandy roller for the purpose of obtaining great strength with extreme
lightness. To a length of strong wire I solder or braze a line of
metallic rings which are themselves soldered to each other, and on the
tops of these rings I solder another length of wire equal to the length
of the roller, the first-mentioned wires being somewhat longer. I take
a number of these lines of rings and wires and place the longer set
of wires in contact with each other and solder them together to form

page_text: the shaft of the roller, the other wires and rings radiating from the
centre at equal distances apart. To the ends of these outer wires and
at intervals corresponding with the diameter of the rings forming the
lines I solder metallic rings placed transversely, and on the tops of the
rings solder as many lengths of wire as are required to form the ribs
of the roller. The central wires are the length of the bearers longer
than the outer ones, and are covered at their ends with tubes to enable
the roller to run smoothly.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Whitehead in the Great Seal Patent Office 1
on the 6th February 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WHITEHEAD, of Manchester, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of August, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Whitehead, Her special license
that I, the said John Whitehead, my executors, administrators, and
assigns, or such others as I, the said John Whitehead, my 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
DANDY ROLLERS USED IN THE MANUFACTURE OF PAPER," upon the condition
(amongst others) that I, the said John Whitehead, my executors or
administrators, by an instrument in writing under my, or their, or
one of their hands and seals, 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.
NOW KNOW YE, that I, the said John Whitehead, do hereby declare
the nature of my said Invention, and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the
following statement (that is to say)
This Invention consists in an improved mode of constructing the
dandy roller for the purpose of obtaining great strength with extreme
lightness. Instead of placing the ordinary wire gauze or laid work
constituting the exterior of the roller on rods placed on heavy wheels
fixed to a tubular shaft I form the body or framework of the roller of
pieces of wire soldered or brazed together in several parts so as to form
a strong skeleton frame on which the wire gauze or laid work is placed.
The manner in which this Invention is to be performed will be clearly
understood by the following particular description thereof, reference
being had to the figures and letters on the accompanying Sheet of
Drawings, in which Figs. 1 and 2 are end and side views of part of a
dandy roller having my improved skeleton framework; Figs. 3, 4, 5,
and 6, detached views of part of the same; and Figs. 7, 8, and 9, longi-
tudinal sections representing slight modifications in the form of the
skeleton framework.
To a length of strong wire a, Figs. 1, 2, and 6, I solder with soft
or hard solder a line of metallic rings 6 which are themselves soldered
to each other, and on these rings I solder another length of wire c,
which at each end is bent at right angles and soldered to the wire a,
as shewn at d, Figs. 1 and 6. I take a number of these wires and rings
and solder the wires a on a central wire and also to each other to form
the shaft of the roller, the wires and rings radiating from the centre at
equal. distances apart, as seen in Fig. 1. To the inner ends of the outer
wires c and at intervals corresponding with the diameters of the rings b
I solder metallic rings e, Figs. 1 and 2, to which I solder wires of for
forming in addition to the wires c the ribs which carry the wire gauze
or laid work, and for giving a proper finish to the ends of the roller and
obtaining smooth surfaces at the ends of the shaft I employ a flange at
both ends of the roller, each flange having a projecting tube and pivot,
as shewn in the end view Fig. 3, longitudinal section Fig. 4, and side
view Fig. 5, in which g represents the flange, h the tube, and i the
pivot. The tube is forced on the wires a at the end of the shaft, and
the ends of the ribs c and f which are nearly equal to the length of the
roller are placed within the rim j of the flange, and the wire gauze or
laid work is brought close to the edge of the rim, after which a metallic
band k, Fig. 5, is soldered on the rim and the end of the wire gauze or

page_text: laid work, and completes that end of the roller, the other end of which
is formed in the same manner. Instead of soldering the rings b to the
wires a, Fig. 6, I modify the construction when desired by soldering to
the said wires a curved wires 1, Figs. 7 and 8, or bridge-shaped wires m,
Fig. 9, to which are soldered the wires c, and it is evident that angular
or other shaped wires can be employed to form this part of the skeleton
framework.
All the Figures are drawn about half size, but the dimensions and
strength of the several parts and the number of arms formed by the
wires and rings or their substitutes are varied according to the required
diameter of the roller.
It will be readily perceived that by this improved mode of con-
structing the framework of the dandy roller great strength and lightness
is obtained, and as all the parts are made of round wire of small diameter
there is but little surface for the accumulation of dirt or floss, and
therefore there is the additional advantage of extreme cleanliness.
Having now described the nature and particulars of my said Inven-.
tion, and the manner in which the same is to be performed, I desire it
to be understood that I claim, the improved mode of constructing the
body or framework of the dandy roller of pieces of wire soldered or
brazed together, as herein described and illustrated in the accompanying
Sheet of Drawings, or any modification thereof.
In witness whereof, I, the said John Whitehead, have hereunto
set my hand and seal, this Fourth day of February, in the
year of our Lord One thousand eight hundred and sixty-nine.
Signed, sealed, and delivered by the
within-named John Whitehead,
in the presence of
G. SEPTIMUS HUGHES,
Patent Agent,
Manchester.
JOHN WHITEHEAD. (L.S.)