IMPROVEMENTS IN OR APPLICABLE TO CARDING ENGINES
Year: 1884

page_text: I WILLIAM EDWIN HEYS of Blackfriars Street Manchester in the County of
Lancaster Mechanical Engineer do hereby declare the nature of my Invention for
IMPROVEMENTS IN OR APPLICABLE TO CARDING ENGINES and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:―
These improvements relate to carding engines and consist in the adaptation and
arrangement of two sets of "flats" and two stripping plates with one "flexible
bend in such a manner that the back set of flats may be driven at any speed that
may be required by the nature or character of the cotton or other fibrous material
and that the front set of flats may be clean and in a suitable condition for finishing
the carding instead of being overloaded with " neps" and dirt as is at present
the case with the flats that are nearest to the front on ordinary carding engines.
And in order that this Invention may be more readily understood and carried
into practical effect I have hereunto appended a Sheet of Drawings in which these
improvements are shown as adapted or applied to a carding engine.
The sets of flats are constructed practically in the same manner as the set of
flats generally employed for similar purposes but they extend over a shorter are of
the flexible bend; they are also arranged in a similar manner but upon two rollers
instead of three or more. The front set of flats G is driven by means of a worm A
and worm wheel B as usual. The back set of flats G¹ is driven from the front set.
by means of the chain pulleys CD and the chain E. A suitable ratio of speeds
for the two sets of flats is two to one, that is to say the back flats may move at
twice the speed of the front flats but this ratio may be modified to suit varying.
conditions in practice. The required relative speeds may be obtained by changing
the chain pulleys CD for larger or smaller pulleys as may be required. Other
methods of driving the flats than that hereinbefore described may be employed, for
example the back set of flats may be driven by means of a worm and worm wheel
similar to that employed for driving the front set, provision being made for the
difference of speed of the two sets of. flats.
Whatever the means adopted for
driving the flats it is preferred that it should be placed on the same side of the
carding engine as the driving pulley so as to be out of the way of the attendants.

page_text: In addition to the ordinary stripping plate or comb H and the revolving
brush FI employ an extra stripping plate or comb H' and revolving brush F¹ the
positions and functions of these being relatively similar with regard to the back set
of flats to those of H and F with regard to the front set of flats.
The
The front set of flats may have finer teeth or wires than the back set when,
there being more carding points a better and more finished sliver will be produced.
The additional stripping plate H₁ extracts a quantity of small leaf a large
proportion of which would otherwise be carried forward into the sliver.
front flats are thereby relieved of the heavier dirt and give less strip than by the
old arrangement while the back flats where the weight of dirt must be, give
proportionately more.
This arrangement of flats enables cotton such as rough Pernams which has
hitherto required double carding or a much smaller production to be carded with
great facility.
Having now particularly described the nature of my said Invention and in what
manner the same is to be performed I declare that what I claim is
(1) The combination adaptation and arrangement of two sets of flats 'G G¹ to or
with a carding engine substantially as hereinbefore set forth and described and as
illustrated on the accompanying Sheet of Drawings.
(2) The combination with two sets of flats G G of an additional stripping
plate H¹ and the ordinary stripping plate H substantially as hereinbefore set forth
and described and as illustrated on the accompanying Sheet of Drawings.
TI
WILLIAM E. HEYS.