and Straightening Woven Fabrios.
Year: 1885

page_text: and Straightening Woven Fabrios.
I ALFRED WHOWELL of Burnden Bank, Great Lever, Bolton in the County of
Lancaster, Bleacher, do hereby declare the nature of my Invention for "IMPROVE-
MENTS IN FISH-BACK' RAILS EMPLOYED FOR SPREADING AND STRAIGHTENING WOVEN
FABRICS" to be as follows:-
This invention has for its object the removal of defects in segmental "fish-back"
rails employed for spreading and straightening woven fabrics and consists in
constructing the same circular with angular slits or teeth turned round the -
circumference and diverging from the centre diagonally towards each outer end to
suit the various requirements of machines for calendering, mangling, damping,
and other similar operations employed by bleachers and others in the process of:
finishing and otherwise operating on woven fabrics.
The circular "fish-back" rail or roll is provided at each end with a centre and
mounted in fixings with screw or other attachments which allow of the surface of
the "fish-back being altered or changed at will as they become worn, thereby
minimising the loss arising from sharpening by filing or other analogous means.
By making them round many faces can be presented to the action of the woven
fabrics before sharpening is required when the same can be placed in a lathe and
sharpened at a much less cost than hitherto,

page_text: Improvements in "Fish-back" Rails Employed for Spreading
and Straightening Woven Fabrios.
'
I ALFRED WHOWELL of Burnden Bank, Great Lever, Bolton in the County
of Lancaster, Bleacher, do hereby declare the nature of my said Invention
for "IMPROVEMENTS IN FISH-BACK RAILS EMPLOYED FOR SPREADING AND
STRAIGHTENING WOVEN FABRICS," and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
"
This invention has for its object the removal of defects in segmental "fish-back
rails employed for spreading and straightening woven fabrics and consists in
constructing the same circular with angular slits or teeth turned round the
circumference and diverging from the centre diagonally towards each outer end
to suit the various requirements of machines for calendering, mangling, damping,
and other similar operations employed by bleachers and others in the process of
finishing and otherwise operating on woven fabrics.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a longitudinal elevation of my improved circular "fish-back "rail-
Fig. 2 is a sectional elevation of same through line A. B.--Fig. 3 is an end view
and Fig. 4 a section through line C. D.
The circular metallic "fish-back" rail or roller E is provided with the slits or
teeth M. turned round its circumference, which diverge from the centre N diagonally
towards each outer end. The circular "fish-back" rail or roller E is provided at
each end with the centre G, which is secured by the pin H or in any other
convenient manner. The circular "fish-back" rail is mounted in the fixings I
attached to the cheeks or frames J of the machine, and are secured in position by
means of the screws K, which allows of the "fish-back" rail or roller being altered
or changed at will as it becomes worn.
In making them round or circular many faces can be presented to the action of
the woven fabric before sharpening is required. When the whole of the circular
surface has been presented to the action of the woven fabric they can be removed
and sharpened by being turned in a lathe, which will be more accurately performed
and cost considerably less than under the old system of sharpening by filing or
other analogous means.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:-
The construction of circular "fish-back" rails or rollers for spreading and
straightening woven fabrics, substantially as herein described and illustrated by
the drawings.
TBOLL T..1.. 1000
EDMUND CHADWICK, C.E.,
Agent for Applicant.