Year: 1885

page_text: Πe var
We GEORGE ASHWORTH and ELIJAH ASHWORTH of the firm of Ashworth
Brothers of the Moss Brook Works Collyhurst, Manchester in the County of
Lancaster, Engineers do hereby declare the nature of this Invention to be as
follows:-
Our Invention relates principally to a former Invention for which Letters
Patent No 4507 of the year 1880 have been granted to us. In the said former
Invention we used thin emery wheels to sharpen the sides of the dents of wire
cards. In practice we have preferred to subject the cards to the action of these
wheels before the application of the cards to the cylinders of the carding engines.
After such application and after the ordinary grinding we have found the card
dents to vary in degree of sharpness in different parts of the cylinder although the
cards might be perfectly uniform before the application. In order to obtain
greater uniformity and to produce keener points on the dents and also to restore
the needle points after they have been dulled or worn down by use and by the
action of the ordinary grinding rollers, we use an emery wheel which can be
controlled in its action by the operator and be entered between the rows of dents
at any point in the width of the cylinder and be kept in operation at such point
for a longer or shorter time as may be required. In a simple arrangement the
emery wheel is mounted in a swing frame which is fitted to slide upon a shaft. In
the case of a travelling flat carding engine we remove a portion of the flats and
mount the said frame to slide upon one of the shafts which carry the chain of flats.
The cylinder whilst being ground is caused to revolve slowly. The emery wheel
spindle receives motion from a driving cylinder which is mounted in the position
of the grinding roller for the flata. To facilitate grinding up to the cylinder edges
we provide each end of the emery-wheel spindle with a strap pulley and shift the
strap from one to the other as required. The swing frame is provided with an
adjustable foot which limits the penetration of the grinder by coming into contact
with the card surface or such limit may be otherwise obtained by the use of an
adjustable stop and the said frame is provided with handles or is suitably formed
so that the operator can withdraw the wheel by swinging the frame outward and
can move the frame sideways to bring the grinder opposite the next furrow or
Pin 977

page_text: into any required position. A graduated scale or marked lines may guide the
operator when shifting the grinder or a screw or a following up cam, excentric or
incline may be used to shift the grinder to the required extent. The apparatus
when applied to act upon the doffer may be mounted upon a shaft carried by the
grinder brackets and be driven by a cylinder mounted in the main cylinder brush
brackets. In some cases or in any case we intend to provide the said swing frame
with means for trueing up the emery wheel at intervals as required as for example
we may mount a diamond cutting tool upon a sliding carriage which can be
adjusted or moved into positions to cause the tool to move in the required
directions. Such an arrangement may be used in connection with emery wheels
used in the sharpening of wire cards in manner otherwise than as herein described.
The method of mounting the emery wheel frame and the driving arrangements
may be varied. If preferred more than one emery wheel might be used at once.
The apparatus may be used in the sharpening or finishing of cards which
have not been sharpened or pointed by the use of emery wheels before being
applied to the cylinders of carding engines.

page_text: Improvements in the method of and in Apparatus for snarpening
Wire Cards.
We GEORGE ASHWORTH and ELIJAH ASHWORTH of the firm of Ashworth'
Brothers of the Moss Brook Works Collyhurst Manchester in the County of
Lancaster, Engineers 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 and accompanying drawings:-
Our Invention relates principally to a former Invention for which Letters
Patent No 4507 of the year 1880 have been granted to us. In the said former
Invention we used thin emery wheels to sharpen the sides of the dents of wire
cards. In practice we have preferred to subject the cards to the action of these
wheels before the application of the cards to the cylinders of the carding engines.
After such application and after the ordinary grinding we have found the card
dents to vary in degree of sharpness in different parts of the cylinder although the
cards might be perfectly uniform before the application. In order to obtain
greater uniformity and to produce keener points on the dents and also to restore
the needle points after they have been dulled or worn down by use and by the
action of the ordinary grinding rollers, we use an emery wheel which can be
controlled in its action by the operator and be entered between the rows of dents
at any point in the width of the cylinder and be kept in operation at such point
for a larger or shorter time as may be required. In a simple arrangement the
emery wheel is mounted in a swing frame which is fitted to slide upon a shaft and
is provided with handles or is suitably formed so that the operator can withdraw
the wheel by swinging the frame outward and can move the frame sideways to
bring the grinder opposite the next furrow or into any required position.
Our Invention will be most fully understood when described with reference to
the accompanying drawings wherein Fig. 1. represents a side view and Fig. 2. a
plan of an apparatus which we have made for the purposes of our invention. In
the said Figs. a is a frame which is provided with bearings in which revolve a
spindle b. on which is secured an emery grinding wheel or disc c. The said frame
is mounted to swivel upon a shaft or bar d. which may be fixed or mounted in the
ordinary grinder brackets or in special brackets or be held in position by any
suitable means so that the apparatus may be applied to act upon the card clothing
of the main cylinder or of the doffer as the case may be. In practice when apply-
ing the apparatus to act upon the main cylinder we use one of the shafts which
carry the chain of flats. This method of applying the said frame is illustrated in
Fig. 3. which is drawn to a smaller scale than the other Figs. and represents a
portion of a carding engine. In this Fig. the shaft d may be the shaft around
which the flats pass at one end of the endless chain or may be a temporary shaft
or bar mounted in the brackets e. In the cases of engines in. process of construction
we apply the said frame before the flats have been mounted in position. When the flats
are already in position we remove a portion of the chain in order that the frame may
be applied in the manner indicated or otherwise we mount a shaft or bar in the

page_text: ordinary grinder brackets or in other suitable brackets. The frame a. is provided
with handles f. f. which can be grasped by the hands whereby the frame can be
slid upon the shaft so as to bring the emery wheel into position to act upon any
part of the card clothing of the cylinder. The said handles also enable the operator
to swivel the frame upon the shaft d to the extent required to introduce the edge
of the grinders into the furrows between the rows of card dents and to withdraw
such edge therefrom or the shaft d may turn in its bearings when the frame is
tilted. The penetration of the grinder is limited by a foot g. which is provided
with a shank g¹ which is adjustable in a hole bored in the frame so that the
amount of the said penetration may be regulated. The said foot by coming in
contact with the card surface prevents penetration of the grinder beyond the
regulated degree. The grinder spindle b. is caused to revolve by any suitable
means. In the example illustrated by Fig. 3. the said spindle receives motion by
means of a belt from a drum h. which is long enough to give motion to the said
spindle when the frame is in any position upon the shaft d. The shaft of the said
drum revolves in the brackets i. which are used to carry the ordinary grinding
roller which acts upon the flats. The spindle b. is provided at each end with a
pulley k. in order that the driving power may be applied to either end of the
spindle to enable the grinder to operate upon the clothing at either extreme end of
the cylinder. When in use the frame is caused to swivel upon the shaft & so as to
obtain the penetration of the edge of the revolving grinder into the spaces between
the dents of the card clothing the cylinder acted upon being revolved at a suitable
speed. Whenever desirable the frame is tilted so as to withdraw the grinder and
is slid upon the shaft to the extent of the distance from one furrow to another or
to any suitable extent and the grinder is again caused to penetrate so as to again
act upon the dents. In place of this procedure the grinder may be brought to act
upon different parts of the cylinder by sliding the frame upon its shaft without
withdrawing the grinder especially in the cases wherein a card fillet is coiled
spirally upon the cylinder. To facilitate the shifting of the frame upon the shaft
a short determinate distance we apply a moveable collar 1. to the shaft and we
provide this collar with a screw m. and we keep some part of the frame in contact
with one end of this screw. By turning this screw to a determined degree the
frame is slid upon the shaft in a proportionate degree. A marked scale or
graduated lines may guide the operator when shifting the grinder frame or any
suitable means may be employed to move the said frame at intervals to the
required extent. In ordinary practice some parts of the cylinder require more
sharpening than others and therefore we adapt the apparatus to be entirely under
the control of the operator so that we can bring it to operate for a longer or
shorter time upon any part of the cylinder as may be required. When the
apparatus is to act upon the doffer the shaft d. may be mounted in the doffer
grinder brackets the driving drum shaft being mounted in the main cylinder bush
brackets as represented at h' in Fig. 3. or in any other suitable position. In order
that the emery wheel may be "trued up" that is to say may have its edge restored
to a suitable form after having become worn with use we prefer to provide the
frame a with means for holding and guiding a diamond tool so that the said
operation may be effected without removing the grinder from the frame. In the
example the said tool when required is clamped in the holder n which is carried
by slides o. o. which are acted upon by screws p. p. these parts being similar to an
ordinary slide rest for a lathe. One part is arranged to swivel upon the other
and can be fixed at an angle so that the top slide carrying the tool will be moved
in the angular direction required to turn the side of the grinder edge as indicated
by the dotted lines in Fig. 2. To rotate the grinder during the trueing operation
we apply a handle 8. to the spindle b. When one side of the grinder has been
trued we reverse the angular position of the top slide so that the other side of the
grinder may be shaped. This tool-holding and grinding apparatus may remain
upon the frame during the operation of the grinder upon the card clothing but in
practice we secure the parts o. by means of a screw indicated by dotted lines at r.

page_text: or by suitable means so that they can be quickly secured in position and be
removed when not in use. Such an arrangement may be used in connection with
emery wheels used in the sharpening of wire cards in manner otherwise than as
herein described. The form of the emery wheel frame and the method of mounting
the same may be varied. If preferred more than one emery wheel might be
arranged to act simultaneously upon one cylinder. The apparatus may be used in
the sharpening or finishing of cards which have not been sharpened or pointed by
the use of emery wheels before being applied to the cylinders of carding engines.
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. The apparatus substantially as and for the purpose set forth and indicated
herein before and in the accompanying drawings.
2. An apparatus for sharpening or finishing the sharpening of the cards upon
carding engine cylinders and doffers consisting of an emery wheel or of emery wheels
mounted to revolve in a frame which can be moved to and fro upon a shaft or bearer
and be swiveled to enter and withdraw the said wheel or wheels these movements
being effected by the operator so that any part of the cylinder may be operated
upon substantially as set forth and indicated.
3. A frame provided with bearings for the spindle of an emery wheel and
mounted to slide and swivel upon a shaft or bar applied to a carding engine in the
manner and for the purpose set forth and indicated.
4. As an appliance for use in connection with apparatus in which emery wheels
are used for sharpening wire cards the diamond tool-carrying slides arranged to be
fixed to some part of the framing of such apparatus in position as that the
periphery of the emery wheel or of each emery wheel may be trued up without
removing such wheel from the said apparatus.