Improvements in Revolving or Travelling Flat Carding Engines.
Year: 1895

page_text: Date of Application, 31st May, 1895
Complete Specification Left, 26th Feb., 1896-Accepted, 30th May, 1896
PROVISIONAL SPECIFICATION.
Improvements in Revolving or Travelling Flat Carding Engines.
We ROBERT ISHERWOOD of 36 Park View, Eagley, near Bolton, in the
County of Lancaster, Mill Manager, and JAMES ISHERWOOD, of 24 Astley
Street, Bolton, aforesaid, Carder, do hereby declare the nature of this invention to
be as follows:-
Our said invention relates to carding engines having travelling or revolving
chains of flats as is well understood. As such flats move round the main cylinder
the wire surface of each flat is held at a tangential angle to the clothing of the
main cylinder so as to bring the heel of the flat down close to the cylinder.
1
As a rule under existing conditions the ends of the flat bars which slide on the
flexible bends or curved sides require to be truly ground or machined so as to
support the flats at the required angle, and this angle is fixed and cannot be varied.
As the flats are also ground across the whole face of the wire covering at each
revolution, it follows that the carding angle will not serve for the grinding angle
so that a face in the same plane as the flat clothing surface requires to be prepared
on the flat ends for the grinding operation and the grinding face is usually or
frequently made on the back of the flat.
According to our invention we propose to effect the tilting of the flats to the
requisite angle by means of an adjustable side bend or segment applied to the
usual flexible bends or curved sides and capable of being sprung or set so as to
give more or less tilt or inclination to the flats. The said auxiliary bend is secured
to the flexible bend or side by bolts passing through slotted holes, and set screws,
wedges or other means are applied at the requisite points to expand or contract the
auxiliary bend as required.
We also prepare the ends of the flat bar so that one side or part of the end shall
rest and slide upon the fixed bend or side while the other side or part shall slide
upon the said adjustable auxiliary bend. This is done by cutting recesses in the
usual side strips in the ends of existing flat bars, or flat bars may be specially made
for our improved purpose. In any case the gist of our invention is that the flat
bar shall rest with its heel side on the constant bend or curve and with its opposite
side on the auxiliary bend or curve, the result being that when the auxiliary bend
is adjusted the wire surface of the flat is thrown to a greater or less angle while at
the same time the position of the heel is not disturbed. By regulating the adjust-
ment of the auxiliary bend we might vary the angle of the flats at different points
in their progress round the bend.
i
The grinding roller is arranged in the ordinary position and where the chain of
flats is brought opposite thereto we arrange flat surface guides or bearers which
support the ends of the flats as they are drawn across by star or carrier wheels.
The flat bars slide on these bearers upon those portions of the ends which are
parallel with the face of the wire clothing of the flats. Thus the flat bars are held
in such a position as enables them to be truly ground across the face while as soon
as they leave the said bearers and slide upon the bends, the cut out recesses enable
them to fall into the proper inclined working position. The traversing and the
grinding of the flats are therefore both effected from what are practically the same
aces.
When the auxiliary bend has been adjusted and locked by bolts or other means

page_text: to the flexible bend the latter can then be sprung or adjusted so as to set the flats
properly to the main cylinder.
Dated the 30th day of May 1895.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.
COMPLETE SPECIFICATION.
Improvements in Revolving or Travelling Flat Carding Engines.
We, ROBERT ISHERWOOD late of 36 Park View, Eagley, and now of
334 Darwen Road, Dunscar, both near Bolton in the County of Lancaster, Mill
Manager, and JAMES ISHERWOOD, of 24 Astley Street, Bolton, Carder, do
hereby declare the nature of our said invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:―
Our said invention relates to carding engines having travelling or revolving
chains of flats as is well understood. As such flats move round the main cylinder
the wire surface of each flat is held in a tangential angle to the clothing of the
main cylinder so as to bring the heel of the flat down close to the cylinder. As a
rule under existing conditions the ends of the flat bars which slide on the flexible
bends or curved sides require to be truly ground or machined so as to support the
flats at the required angle, and this angle is fixed and cannot be varied. As the
flats are also ground across the whole face of the wire covering at each revolution,
it follows that the carding angle will not serve for the grinding angle so that a face
in the same plane as the flat clothing surface requires to be prepared on the flat
ends for the grinding operation and the grinding face is usually or frequently made
on the back of the flat. According to our invention we propose to effect the tilting
of the flats to the requisite angle by means of an adjustable side bend or segment
applied to the usual flexible bends or curved sides and capable of being sprung or
set so as to give more or less tilt or inclination of the flats. The said auxiliary
bend is secured to the flexible bend or side by bolts passing through slotted holes,
and set screws, wedges or other means are applied at the requisite points to expand
or contract the auxiliary bend as required. We also prepare the ends of the flat
bar so that one side or part of the end shall rest and slide upon the fixed bend or
side while the other side or part shall slide upon the said adjustable auxiliary bend.
This is done by cutting recesses in the usual side strips in the ends of existing flat
bars, or flat bars may be specially made for our improved purpose. In any case
the gist of our invention is that the flat bar shall rest with its heel side on the
constant bend or curve and with its opposite side on the auxiliary bend or curve,
the result being, that when the auxiliary bend is adjusted the wire surface of the
flat is thrown to a greater or less degree while at the same time the position of the
heel is not disturbed. By regulating the adjustment of the auxiliary bend we
might vary the angle of the flats at different points in their process round the bend.
The grinding roller is arranged in the ordinary position and where the chain of
flats is brought opposite thereto we arrange flat surface guides or bearers which
support the ends of the flats as they are drawn across by star or carrier wheels.
The flat bars slide on these bearers and upon those portions of the ends which are
parallel with the face of the wire clothing of the flats. Thus the flat bars are held
in such a position as enables them to be truly ground across the face while as soon
as they leave the said bearers and slide upon the bends the cut out recesses enable
them to fall into the proper inclined working position. The traversing and the
grinding of the flats are therefore both effected from what are practically the same
faces.
When the auxiliary bend has been adjusted and locked by bolts or other means

page_text: DESCRIPTION OF DRAWINGS.
Fig. 1 is a part side elevation of a carding engine with our improvements.
applied.
Fig. 2 is a section through line A¹ B' in Fig. 1.
Fig. 3 a part longitudinal sectional elevation through line C' D', and
Fig. 4 a part plan of underside of travelling flats.
A are the travelling or revolving flats as is well understood in connection with:
carding engines employed in the process of preparing cotton and other fibrous
materials for spinning-B the carding engine sides-C and C2 the flexible bends-
D the endless chains for traversing the flats A, and E the main cylinder covered
with the wire filletting G. As the flats A move round or over the main cylinder E.
the wire surface H of each travelling or revolving flat A is held in a tangential
angle to the clothing or filletting of the main cylinder E so as to bring the heel of
each flat A down close to the cylinder E. As a rule under existing conditions the
ends F of the travelling or revolving flat bars A which slide on the flexible-
bends C require to be truly ground or machined so as to support the travelling or
revolving flats A at the required angle which is fixed and cannot be varied. As
the flats A are also ground across the whole face of the wire covering or filletting H
at each revolution, it follows that the carding angle will not serve for the grinding:
angle so that a face in the same plane as the flat covering surface requires to be
prepared on the flat ends F for the grinding operation and the grinding face is.
usually or frequently formed on the back of the flat. According to our invention.
the tilting of the travelling or revolving flats A is effected by means of the bend
or segment C² applied to the ordinary flexible bend S and capable of being sprung
or set so as to give more or less tilt or inclination of the travelling or revolving
flats A. The ordinary flexible bend S is secured to the carding engine sides B in
any manner, the bolts or set screws Y being placed at the requisite points to.
expand or contract the auxiliary bend C2 as required. The ends of the flat bars A
are provided with the surfaces F and disposed as shown in Fig. 4 so that one will.
rest and slide upon the ordinary flexible bend S while the other slides upon the
bend C. The heel side of each flat bar A rests on the ordinary flexible bend S.
and with its opposite side on the auxiliary bend C³; the result being, that when
the latter is adjusted the wire surface H of the flat A is thrown to a greater or
less degree while at the same time the position of the heel is not disturbed. By
regulating the adjustment of the auxiliary bend C² the angle of the flats A may
be varied at different points in their progress round the bend. The grinding
roller T is arranged in the ordinary position, the chain of travelling flats A being
brought opposite thereto the flat surface guides or bearers W support the ends of
the flats A as they are drawn across by the star or carrier wheels X. The flat.
bars A slide on the bearers W and upon the surfaces F on each end which are
parallel with the face of the wire clothing H. Thus the flat bars A are held in
such a position as enables them to be truly ground across the wire face while as
soon as they leave the said bearers and slide upon the bends the cut out recesses
enable them to fall into the proper inclined working position. The traversing and
the grinding of the wire surfaces of the flats A are therefore both effected from
what are practically the same faces. When the auxiliary bend C' has been adjusted
and locked by the bolts or set screws Y the ordinary flexible bend S can then be
sprung or adjusted so as to set the flats A to the main cylinder.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In combination with revolving or travelling flat carding engines the general

page_text: arrangements, constructions, and combinations of parts composing our improved
flexible bends and the means for adjusting and setting the same, substantially as
described and as illustrated on the drawings.
2. In combination with revolving or travelling flats employed in carding engines
the use of the surfaces F for the purpose specified.
Dated the 21st February 1896.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.