Improvements in Apparatus for Grinding Carding Engine Flats.
Year: 1888

page_text: Date of Application, 3rd Nov., 1888
Complete Specification Left, 2nd Aug., 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Grinding Carding Engine Flats.
We, JOHN ALLEN DYSON of 338 Queen's Row, Cheetham, near Manchester,
Manager, and BROUGHTON BLACKBURN of 76 Hulme Hall Lane, Miles Platting near
Manchester, Carder, both in the County of Lancaster, do hereby declare the nature
of our said invention to be as follows:
:-
This invention relates to improvements in apparatus for grinding the revolving flats
employed in carding engines, and has for its object that of grinding the wire faces of
the flats when they are sliding upon the flexible bends of the carding engine or their
equivalents. On the flexible bends or otherwise of the carding engine are attached
suitable fixings, to which are pivoted curved or other levers. To the said fixings are
also pivoted hollow or other boxes provided with springs, bowls or rollers, or their
equivalents to operate on the sliding surfaces of the revolving flats as they pass under
the same, and thus maintain their correct position on the bends or their equivalents
when the grinding roller is operating on the wire surfaces of the flats. The pivoted
levers, the pivoted hollow or other boxes, and the adjustable supports for carrying the
grinding roller are secured together by bolts or pins, which allows of the same
yielding to grind the flats perfectly true. The flexible bends or other parts carrying
the revolving flats under the centre line of the grinding roller are flattened for a
certain distance to allow the revolving flats to travel in a straight line when being
operated upon by the grinding roller. The flat surfaces on the bends are provided at
each side with taper surfaces converging into the circle of the flexible bends, thereby
ensuring of the flats assuming their normal position on the bends. The pivoted levers
to which the grinding roller fixings or supports and the hollow or other boxes are
attached are provided with weighted ends to press the flats onto the flattened or other
surfaces, at the same time allowing them and the grinding roller to adjust themselves
to the flats during the operation of grinding. The grinding roller can be driven, both
radially and laterally, in any suitable manner from any convenient part of the carding
engine.
Dated the 2nd Navambar 1000
EDMUND CHADWICK,
A cont
COMPLETE SPECIFICATION.
:
Improvements in Apparatus for Grinding Carding Engine Flats.
We, JOHN ALLEN DYSON of 338 Queen's Road, Cheetham, near Manchester,
Manager, and BROUGHTON BLACKBURN of 76 Hulme Hall Lane, Miles Platting, near
Manchester, Carder, both in the County of Lancaster, 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 :-
This invention relates to improvements in apparatus for grinding the revolving flats
employed in carding engines, and has for its object that of grinding the wire faces of
the flats when they are sliding upon the flexilbe bends of the carding engine or their
equivalents. On the flexible bends or otherwise of the carding engine are attached
suitable fixings to which are pivoted curved or other lovers. To the said fixings are

page_text: also pivoted hollow or other boxes provided with springs, bowls or rollers, or their
equivalents to operate on the sliding surfaces of the revolving flats as they pass under
the same, and thus maintain their correct position on the bends or their equivalents
when the grinding roller is operating on the wire surfaces of the flats. The pivoted
levers, pivoted hollow or other boxes, and the adjustable supports for carrying the
grinding roller are secured together by bolts or pins, which allows of the same
yielding to grind the flats perfectly true. The flexible bonds or other parts carrying
the revolving flats under the centre line of the grinding roller are flattened for a
certain distance to allow the revolving flats to travel in a straight line when being
operated upon by the grinding roller. The pivoted levers to which the grinding roller
fixings or supports and the hollow or other boxes are attached are provided with
weighted ends to press the flats onto the flattened or other surfaces, at the same time
allowing them and the grinding roller to adjust themselves to the flats during the
operation of grinding. The grinding roller can be driven, both radially and laterally,
in any suitable manner from any convenient part of the carding engine.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a side elevation of our invention applied to a carding engine-Fig. 2 is a
front elevation, and Fig. 3 a part plan of same.
by
A is the carding engine frame provided with the flexible bend B, and C are the
revolving or travelling flats coupled by the endless chains C. To the carding engine
frames A are attached the adjustable fixings G by the bolts D and adjusting
screws E. The latter are held in the lugs F cast or otherwise secured to the
frames A. The upper end of each adjustable fixing G is provided with the guides H
on and over which the revolving or travelling flats C move in their passage from
one side of the carding cylinder to the other. To the fixings G are attached the
adjustable fixings 1; and to the latter are pivoted the curved levers J with the
weighted ends by the pins K. The fixings I are secured to the fixings
the bolts I. To the levers J are secured the fixings M by the bolts or set screws N;
and the open ended fixings O are secured to the fixings M by the bolts P. The
fixings are provided with the slots Q to allow of adjustment by the adjusting
scrows and nuts R mounted in the fixings M. In the open ended fixings Ois
mounted the grinding roller S; the centre T of the latter being fitted with the
pulley U, which can be driven or rotated from any convenient rotary part of the
carding engine. The bolts P are constructed so as to carry the pivoted hollow
boxes V; the latter being secured thereon by the pins W and set screws X. Fig. 4
is a soctional elevation through the centre of one of the pivoted hollow boxes V.
Fig. 5 is an end view of same. Fig. 6 is a front elevation with cover removed to
show the inside of the hollow boxes and their contents, and Fig. 7 is a plan.
The hollow boxes V are provided with the tilting preparer and discharger piece Z,
mounted on the centre Y. The piece Z and centre Y are held in position by the
cover secured thereto by the screws X'.
This apparatus operates as follows -When the carding engine is in motion the
revolving flats C travel in the direction indicated by the arrows. As the revolving
flats C travel they come in contact with the guides H on the upper end of the
fixings G and are guided into the correct position under the grinding roller S for
the purpose of allowing the wire surfaces D1 to be ground as they are travelling.
To ensure of the revolving flats C and their wire surfaces D¹ being presented in
the correct position to be ground the guides H are provided with flat surfaces as
shown in Figs. 6 and 8. When a revolving flat is in position for the wire
surface D¹ being ground the tilters Z in the hollow boxes V are in the position
shown in Fig. 8; and causes each end of the revolving flat ander operation to be
held or pressed upon at its four corners or bearing surfaces, which is absolutely
necessary to maintain the correct position and give stability and firmness to the
travelling flat when being operated upon by the grinding roller S, this being an
important feature of this invention. When the grinding of the wire surface D¹ of
1

page_text: each flat is completed the tilter Z assumes the position shown in Fig. 6 to allow
the next advancing flat to be ground, and as soon as the leading side of the latter
comes into contact with the projection ; on the underside of the piece Z it is
tilted as in Fig. 8, to place the front edge on the opposite side of the flat, to hold
or press the same on its four corners whilst travelling under the grinding roller S.
The points and bear on the surfaces d that slide on the flexible bend B when the
flats are passing over the carding cylinder. The pressure of the tilters Z is effected
by the pivoted curved levers J. When the pieces Z are tilted as in Fig. 8 the newly
ground flat is released from pressure to allow it to travel down the curved guide H
towards the carding cylinder, and so on, the operation being repeated as each flat
travels to and from the grinding roller S.
This apparatus is equally applicable for grinding the wire surfaces of carding engine
flats in an ordinary or other grinding machine.
Having now particularly described and ascertained the nature of our invention
and in what manner the same is to be performed we declare that we are
aware of the Specification of Letters Patent No. 2912 of 1888 granted to Thomas
Knowles and Roger Tatham and we wish it to be understood that we do not claim
anything described and claimed therein, but what we claim is :-
1. In apparatus for effecting and maintaining the true position of travelling or
revolving flats employed in carding engines during the operation of grinding, the
wire surfaces D', consisting of the fixings G and guides H provided with the surfaces
on which the revolving or travelling flats are guided and held, whilst travelling, by
the tilters Z mounted in the boxes V attached to the levers J, substantially as described
and illustrated on the drawings.
2. In combination with apparatus for effecting and maintaining the true position of
travelling or revolving flats employed in carding engines during the operation of
grinding the wire surfaces, the use of the boxes V and tilters Z for the purpose
specified.
3. Mounting the grinding roller S, the boxes V and their appendages on the
levers J to allow the same to yield or adjust themselves according to any variation in
the bearing surfaces of the flats for the purpose of effecting equal grinding throughout
a set of revolving flats.
4. Supporting or holding revolving flats by the four corners or bearing surfaces of
each end when travelling under the roller S for the purpose of grinding the wire
surfaces, substantially as described and as shown on the drawings.
5. The construction, combination, and arrangement of parts constituting the
apparatus to a carding engine or other machine for grinding carding engine flats,
substantially as and for the purpose herein set forth and indicated.
Dated the 26th July 1889.
EDMUND CHADWICK,
Agent.