Improvements in or relating to Apparatus for the Mercerization of Cotton or other Fibrous Materials.
Year: 1898

page_text: Improvements in or relating to Apparatus for the Mercerization of
Cotton or other Fibrous Materials.
We, WILLIAM EDWARD AYKROYD, of Ashwell, Manningham, near Bradford,
in the County of York, Dyer and Finisher, WILLIAM HENRY AYKROYD, of West
View, Manningham, aforesaid, Dyer and Finisher, and HENRY EDWARD AYKROYD,
of Thornfield, Duckworth Lane, Manningham, aforesaid, Dyer and Finisher, do
hereby declare the nature of this invention to be as follows:-
In apparatus for imparting a silky lustre and touch to yarn or other fibrous
substances by stretching under pressure, to recover or prevent shrinkage due to
the action of the caustic soda, such as that described in our Application for
Patent, No. 30,142 of 1897, there is an enormous tension exerted between the
two sets of stretching rollers, which necessitates their being constructed of great
strength. As depicted in the drawings accompanying the application for that
patent, the rollers B and C are journalled in the girders A and C at or near their
centre, leaving the ends unsupported, so as to be quite free so as to allow the
yarn or other substance to be freely slipped over the top rolls under the
bottom ones. The ends of the rollers thus rely entirely for their support on
the centre bearings and have to be made of great strength to resist fracture.
Now our invention has for its object to provide armed supports for the ends
of these rollers which will provide the necessary support for the ends without in
any way preventing the yarn being freely slipped over the rollers. In applying
the present invention to the rollers set forth in said patent application, we bolt
to each of these girders A and C₁, a series of lateral arms arranged between the
two sets of rollers, and projecting laterally from each side of the girders. They
are turned up or down at the ends (as the case may be) and there provided with
bearings in which the extreme ends of the rollers are journalled. This construc-
tion therefore provides a support for the ends of the rollers, and resists the great
tension which the two sets of rollers are subjected to, caused by the shrinkage
(or prevention of the shrinkage) of the material, while in no way interfering
either with the yarn or other substance being freely placed on the rollers, or with
the desired tension on the material running on the two series of rollers, being
adjusted.

page_text: Improvements in or relating to Apparatus for the Mercerization of
Cotton or other Fibrous Materials.
We, WILLIAM EDWARD AYKROYD, of Ashwell, Manningham, near Bradford,
in the County of York, Dyer and Finisher, WILLIAM HENRY AYKROYD, of West
View, Manningham, aforesaid, Dyer and Finisher, and HENRY EDWARD AYKROYD,
of Thornfield, Duckworth Lane, Manningham, aforesaid, Dyer and Finisher, do
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
In apparatus for imparting a silky lustre and touch to yarn or other fibrous
substances by stretching under pressure, to recover or prevent shrinkage due to
the action of the caustic soda, such as that described in our Application for
Patent, No. 30,142 of 1897, there is an enormous tension exerted between the
two sets of stretching rollers, which necessitates their being constructed of great
strength. As depicted in the drawings accompanying the application for that
patent, the rollers B and C are journalled in the girders A and C at or near their
centre, leaving the ends unsupported, so as to be quite free and allow the
yarn or other substance to be freely slipped over the top rolls under the
bottom ones. The ends of the rollers thus rely entirely for their support on
the centre bearings and have to be made of great strength to resist fracture.
Now our invention has for its object to provide armed supports for the ends
of these rollers which will provide the necessary support for the ends without in
any way preventing the yarn being freely slipped over the rollers.
The invention will be understood from the following description, reference
being had to the accompanying drawings in which:
Figure 1 is a cross section showing the supporting arms applied to the rollers
set forth in our patent application aforesaid;
Figure 2 a plan.
In applying the present invention to the rollers set forth in the said patent
application, we bolt to each of these girders A and C a series of lateral arms a
and e arranged between each pair of rollers and projecting laterally from each
side of the girders. They are turned up or down at the ends as the case may
be, and there provided with bearings a c¹ in which the extreme ends of the
rollers B and are journalled. This construction therefore provides a support
for the ends of the rollers, and resists the great tension which the two sets of
rollers are subjected to, caused by the shrinkage (or prevention of the shrinkage)
of the material which is liable to spring the rollers out of the true, while in no
way interfering either with the yarn or other substance being freely placed on
the rollers, or with the desired tension on the material running on the two series
of rollers, being adjusted. The bearings in the girders and at ends of supporting
arms are by preference roller bearings.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. In a machine of the kind described, forming or providing the frames or
girders in which the parallel stretching rollers are arranged, with lateral arnis
having bearings at each end in which the extreme ends of the rollers are
journalled, substantially as set forth, whereby the tension between the two sets
of rollers caused by the shrinkage of the material is resisted.

page_text: 2. In a machine for mercerizing fibrous materials, the combination with
parallel stretching rollers mounted in girders having journals formed upon their
outer ends, of means for supporting said stretching rollers, so that their outer
ends may be free to discharge or receive the material mercerized or to be mercer-
ized, said means comprising lateral arms formed upon or secured to said girders,
and having journal bearings at their ends for engaging the journals upon the
ends of the said rollers, the construction being such that the tension between
the two sets of rollers caused by the shrinkage of material will not spring the
rollers out of the true, substantially as described.
Dated this 30th day of June 1899.
WM. P. THOMPSON & Co., .
Patent Agents, of Liverpool Manchester, Birmingham and London.