IM- PROVEMENTS IN THE MANUFACTURE AND APPLICATION OF WOOLLEN-FACED ROLLERS
Year: 1871

page_text: LETTERS PATENT to Carl Heinrich Roeckner, of No. 180, Upper
Thames Street, in the City of London, for the Invention of "IM-
PROVEMENTS IN THE MANUFACTURE AND APPLICATION OF WOOLLEN-FACED
ROLLERS."
COMPLETE SPECIFICATION filed by the said Carl Heinrich Roeckner
at the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 17th January 1871, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CARL
HEINRICH ROECKNER, of No. 180, Upper Thames Street, n the City of
London, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS
IN THE MANUFACTURE AND APPLICATION OF WOOLLEN-FACED ROLLERS," and have
petitioned Her Majesty to grant unto me, my executors, administrators,
and assigns, Her Royal Letters Patent for the same, and have made
solemn Declaration that I am the true and first Inventor thereof.

page_text: NOW KNOW YE, that I, the said Carl Heinrich Roeckner, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following
statement:
2366
This Invention relates to the manufacture of woollen, faced rollers, or
rollers with woollen surfaces, to be applied and used in the manufacture
of paper for "breast rollers," glazing press rollers," and "coutching
rollers;" and also intended to be applied and used for all printing
purposes, for wringing machines, and for covering and underlining
wheels to prevent vibration or slipping, and generally where an elástic
surface or periphery is required.
To carry out my Invention I form solid or hollow cylinders or
foundations of wood, metal, or other suitable material in one or more
pieces, with plain, serrated, notched, grooved, corrugated, dovetailed, or
other indented surfaces or peripheries. The notches, grooves, or dove-
tails are to be cut out or otherwise formed lengthways of the roller,
either parallel with or inclined to the axis, or the required form of
surface of the cylinder or foundation may be obtained by inserting strips
of metal or wood or other suitable material in the periphery of a roller.
Around the roller over the notches, grooves, or other indentations I
then lay the woollen materials, which by preference may be strips or
shreds of cloth or felt, or threads wedged or pressed into or upon such
grooves radially or edgeways towards or from the axis of the roller, in
such a manner that the woollen materials may be compressed into
something like a solid mass, so that it may be capable of being ground,
turned, or otherwise reduced, and the outer surface made or finished to
a true circular, or cylindrical, or any required form.
In rolls of great length the woollen material should be secured by
means of cement applied between the hard surface of the roller and the
layers, or by strong threads or wires passing through them transversely;
or by folding the strips of woollen materials and placing the string or
wire within at the bottom of the folds, winding upon the roller, and then
applying pressure to compress the materials into the condition before
described. For effecting this compression, when the rollers are surfaced
in the manner last described, I use hollow cylinders, boards, or iron rods
or rings, extending or moving freely over the roller to press upon the
woollen material; and from time to time as the layers or rings of the

page_text: woollen material are put on, I apply pressure by an hydraulic jack or
screw or other power, until the required degree of compression-has been
obtained.
In some cases where a less thickness of the woollen materials is
sufficient, I first form the core or foundation of an angular shape in
section, or as herein-before described, and coat or cover the same with
glue or cement prepared for the purpose, and. then cause the same to
take up the woollen materials, which in such cases I prefer to use in a
flocculent state or condition, and apply one or more layers of such
cement and woollen materials, as the case may require, and finish by
grinding or turning, as before explained.
The elastic facing of the rollers need not always be entirely of wool or
woollen material, but may also. consist of a mixture of wool or woollen
material and cotton, linen, silk, or other fibrous substances.
What I claim and desire to secure by the herein-before mentioned in
part recited Letters Patent is, the manufacture and application of the
woollen-surfaced rollers formed as herein described.
In witness whereof, I, the said Carl Heinrich Roeckner, have
hereunto set my hand and seal, this Tenth day of January, in the
year of our Lord One thousand eight hundred and seventy.