IMPROVEMENTS IN DRAWING AND HOLDING ROLLERS FOR FIBROUS SUBSTANCES.
Year: 1876

page_text: LETTERS PATENT to Thomas Whitehead and Henry Walton Whitehead, both
of Holbeck, in the Parish of Leeds, in the County of York, Partners in the
Firm of Taylor, Wordsworth, & Co., of the same Place, Machine and Tool
Makers, for the Invention of IMPROVEMENTS IN DRAWING AND HOLDING
ROLLERS FOR FIBROUS SUBSTANCES.".
Sealed the 17th April 1877, and dated the 23rd October 1876.
PROVISIONAL SPECIFICATION left by the said Thomas Whitehead and
Henry Walton Whitehead at the Office of the Commissioners of Patents
on the 23rd October 1876.
THOMAS WHITEHEAD and HENRY WALTON WHITEHEAD, both of Holbeck, in
the Parish of Leeds, in the County of York, Partners in the Firm of Taylor,
Wordsworth, & Co., of the same Place, Machine and Tool Makers.
"IMPROVE-
MENTS IN DRAWING AND HOLDING ROLLERS FOR FIBROUS SUBSTANCES."
Hitherto the upper roller has been pressed on to the lower roller by means of
springs, weights, or other contrivances.
Our improvements consist in setting the upper roller on a fixed centre suffi-
ciently clear from the lower roller so as to allow of the fibre to be held or drawn by
the friction of the sides of the fluting without allowing the upper roller (which is
a fixture) to give way at all, thereby preventing the fibre from being crushed,
injured, or destroyed by the weight or action of the upper rollers, springs, or weights.
Our improvement is applicable to either plain or fluted rollers as may be found
advisable.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Whitehead and Heury Walton Whitehead in the Great
Seal Patent Office on the 21st April 1877.
THOMAS WHITEHEAD and HENRY WALTON WHITEHEAD, both of Holbeck, in
the Parish of Leeds, in the County of York, Partners in the Firm of Taylor,
Wordsworth, and Company, of the same Place, Machine and Tool Makers.
PROVEMENTS IN DRAWING AND HOLDING ROLLERS FOR FIBROUS SUBSTANCES."
"IM-
Hitherto the upper roller of drawing frames has been pressed on to the lower
roller by means of springs, weights, or other contrivances.

page_text: Our improvements consist in setting the upper roller on a fixed centre sufficiently
clear from the lower roller to allow of the fibre to be held or drawn by the friction
of the sides of the fluting without allowing the upper roller (which is a fixture) to
give way at all, thereby preventing the fibre from being crushed, injured, or
destroyed by the weight or action of the upper roller, springs, or weights.
Our improvement is applicable both to plain or fluted drawing rollers.
In the accompanying Drawing we have shown so much of a drawing frame as
will serve to explain the nature of our Invention. In this example the drawing
rollers are shown as fluted, two upper rollers working into one lower roller.
A, A, is a portion of the framework of the drawing frame; B is the conductor for
guiding the fibre after it has left the gills to the drawing rollers C, C³, C²; D is a
fixed bracket for carrying the upper rollers C1, C2, which are set sufficiently clear
from the lower roller C to allow of the fibre being held or drawn by the friction of
the sides of the fluting or, when plain rollers are used, by the nip of their peripheries;
E is a block of vulcanized india-rubber placed under the bush of the bottom drawing
roller C to allow of that roller yielding to undue pressure and adjusting itself to the
thickness of the fibre passing between the rollers, thereby preventing the fibre from
being cut, crushed, or injured, to which it is now very liable from the use of the
ordinary weighted or pressed upper rollers.
Having now set forth the nature of our Invention of improvements in drawing
and holding rollers for fibrous substances, and explained the manner of carrying the
same into effect, we wish it to be understood that under the above in part recited
Letters Patent we claim the application to drawing frames of upper drawing
rollers mounted in fixed bearings, such rollers being adjusted relatively to the
lower drawing roller as and for the purpose above described.
In witness whereof, we, the said Thomas Whitehead and Henry Walton
Whitehead, have hereunto set our hands and seals this Eighteenth day
of April, in the year of our Lord One thousand eight hundred and
seventy-seven
THOMAS WHITEHEAD.
(L.S.)
Sigued, sealed, and delivered by
the said Thomas Whitehead
and Henry Walton Whitehead
in the presence of
GEORGE BENTLEY,
HENRY WALTON WHITEHEAD. (L.S.)
Draughtsman to Messrs. Taylor, Wordsworth, & Co.
EDWARD WHITELEY,
Clerk to Mr. Thos. Turner,
Sol.,
Leeds.