IMPROVEMENTS IN CARD STRIPPERS
Year: 1884

page_text: We GEORGE ASHWORTH and ELIJAH ASHWORTH of the Moss Brook Works,
Collyhurst, Manchester, in the County of Lancaster, Engineers, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN CARD STRIPPERS" to be
as follows:-
Our Invention relates to the strippers or appliances used in the occasional
removal of the fibres which accumulate in the spaces between the dents or teeth of
the cards used in the preparation of fibrous materials. In the ordinary practice
the strippers are covered with card clothing of a similar nature to the cards which
have to be stripped. Owing to the shortness of the dents of these strippers they
are comparatively rigid and are severe in their action upon the cards at the same
time that they are deficient in respect of their penetrative and clearing effect. To
remedy theso defects we make use of a specially made stripper having dents of
greatly increased longth as compared with the cards to be stripped. These dents
are preferably made of hardened and tempered steel wire and sharpened by means
of revolving emery discs in accordance with our now well known process. These
dents owing to their extra length are very yielding and resilient so that they are
much less liable to injure the cards than the ordinary strippers and they have
a superior penetrative effect so that the cards are well stripped. Owing to the
extra length of the dents and to their penetrative effect it is necessary to determine
the extent to which they shall penetrate the cards. This we accomplish by
providing each side of the stripper with a guard or check strip or roller made of
wood or of other suitable material and which may be made to be adjustable. We
do not confine ourselves to the exact disposition of the guards on each side of the
stripper so long as the penetration is limited by means of guards or stops or of
a guard or stop. To clear the stripper from the accumulated fibres we propose in
some or in all cases to provide the stripper with a hinged or movable comb or grid
having teeth or members which may be made of wire and which when the stripper
is in use lie between the dents of the stripper so that the fibres are accumulated
above the said comb or grid that is to say that the said comb or grid shall be
between the foundation and the accumulation the intention being that the stripper
shall be cleared by simply moving or turning the comb or grid outward from the
foundation.

page_text: We GEORGE ASHWORTH and ELIJAH ASHWORTH of the Moss Brook Works,
Collyhurst, Manchester in the County of Lancaster, Engineers do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN CARD STRIPPERS" and in
what manner the same is to be carried into practical effect to be particularly
described and ascertained in and by the following statement and accompanying
drawings:-
Our Invention relates to the strippers or appliances used in the occasional
removal of the fibres which accumulate in the spaces between the dents or teeth of
the cards used in the preparation of fibrous material. In the ordinary practice
the strippers are covered with card clothing of a similar nature to the cards which
have to be stripped. Owing to the shortness of the dents of these strippers they
are comparatively rigid and are severe in their action upon the cards at the same
time that they are deficient in respect of their penetrative and clearing effect. To
remedy these defects we make use of a specially made stripper having dents of
greatly increased length as compared with the cards to be stripped. To determine
the depth of penetration we provide each side of the stripper with a guard or check
strip or roller made of wood or other suitable material and which may be made to
be adjustable. To clear the stripper from the accumulated fibres we propose in
some or in all cases to provide the stripper with a hinged or movable comb
or grid.
In order that our said Invention may be properly understood we will now
proceed more fully to describe the same with reference to the annexed sheet of
drawings.
Fig. 1 of the said drawings is an end view of our improved stripper, Fig. 2 is
a side elevation, and Fig. 3 a view of the face of the stripper the dents in the latter
Fig. being conventionally represented by the dotted lines marked a. As shown in
the drawings the stripper consists of a trough shaped frame consisting of a back b
and two sides c. The dents a which are preferably made of hardened and tempered
steel wire and sharpened by means of revolving emery discs in accordance with our
now well known process are set in the foundation & in the usual manner the
foundation being then attached by nailing, cementing or other suitable means to
the back b of the stripper frame. The dents a are of greatly increased length as
compared with the ordinary stripper so that they are very yielding and resilient
and are much less liable to injure the cards to which they are applied than the
ordinary stripper whilst their length and elasticity give them a superior penetrative
and clearing effect. In order to limit the penetration of the dents we attach to the
sides c of the stripper frame adjustable guards e which embrace the sides o and are
capable of adjustment towards or from the level of the points of the dents a by
means of adjusting screws f which pass through slots formed in the guards e.
faces of these guards bear upon the cards which are being stripped and by regu-
lating their position any desired penetration can be obtained. We do not however
confine ourselves to the exact form slown of the said adjustable guards nor to their
use in all cases as the improved stripper could be beneficially used, without having
The

page_text: any such means of adjustment. Instead of forming the adjustable guards with
a flat face as shown a roller might be employed. As the stripper is apt to become
clogged with accumulations of fibres, seeds and other refuso it is necessary to clear
it from time to time. A comb is usually employed to effect this object but as an
improvement upon this method we propose to provide the stripper in some or in all
cases with a clearing grid or frame as shown in Figs. 4, 5 and 6 of the drawings.
The said clearing grid or frame g is shown in plan at Fig. 4 and in end elevation
at Fig. 5. The grid or frame is formed of wire and the members g¹ g³, g³ and gʻ
lie along the foundation of the stripper dents a, a path between the dents being left
for the members g* and g³. The grid g is hinged at h to the ends of the stripper
frame in the manner shown and a spring i may be arranged to press on the flat
Bides of the hinge joint so as to keep the grid in position or a latch or hasp might
be used for the same object As the grid g lies upon the foundation when the
stripper is at work the accumulations of fibres and dirt will form above it. To
remove these accumulations it is only necessary to turn the grid outward from the
foundation upon its hinges into the position shown in dotted lines in Fig. 5.
Instead of hinging the grid as described it may be applied in the manner shown at
Fig. 6. In this instance the grid is attached at each end of the stripper to a sliding
rod k having a presser knob and spring m by the pressure of which the grid is
held against the foundation. By pressing on the knobs at each end of the stripper
the grid is pushed into the position marked in dotted lines and the accumulations
are thus removed. The spring m returns the grid to its normal position. The
grid can either be arranged to be moved out slantingly as shown or the spindles k
might be set straight.
Having now particularly described and ascertained the nature of ou. said
Invention and in what manner the same is to be performed we declare that what
we claim is
1. A card stripper having dents which are longer and more resilient than the
dents of the cards upon which the stripper is caused to operate and provided with
guards either fixed or adjustable to limit the penetration, substantially as herein-
before described and shown.
2. A card stripper of the described construction having a hinged or sliding
clearing grid substantially as described and shown.