Improvements in Apparatus for Grinding Carding Engine Flats.
Year: 1889

page_text: Date of Application, 16th Sept., 1889
Complete Specification Left, 16th June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Grinding Carding Engine Flats.
We, ROBERT ISHERWOOD of 258 Ainsworth Road, Carder, and JAMES ISHERWOOD ol
294 Ainsworth Road, Under Carder, both of Radcliffe near Manchester 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 sliding upon the surfaces which travel upon the curved guides or
flexible bends of the carding engine. On the framing or sides of the carding engine.
we mount adjustable fixings for carrying shafts or centres, and pulleys, discs or rollers.
for guiding the revolving flats over the grinding roller. To the adjustable fixings are
pivoted arms or levers on which the flats travel when being operated upon by the
grinding roller. When the flats are travelling over the grinding roller they operate
fingers or their equivalents attached to levers provided with cams, the latter operating on
the said arms or levers and so adjusts them as to allow of the wire surfaces being guided
in their correct position over the grinding roller to be uniformly ground to the
inclination of their working surfaces. The cams, lovers, and their attachments are
mounted on centres attached to the adjustable fixings. When each flat has been
ground the fingers are brought into contact with fixed projections, which, by the
travelling action, depresses and liberates them from the flats. Immediately the fingers
are released from the travelling action of the flats they are re-set automatically for the
next advancing flat by weights, springs, or other equivalents, which also allows the
pivoted arms or levers to assume their correct position for the next flat to be ground,
this being determined by stops on the adjustable fixings.
The cams and their attachments are re-set by means of weights, springs, or other
mechanical means. The grinding roller is carried in suitable bearings from the
adjustable fixings or otherwise. When grinding has been performed the grinding
roller is removed, and the fingers are moved out of the path of the travelling flats
by means of screws or their equivalents suitably disposed.
Dated the 14th September 1889.
EDMUND CHADWICK,
Agent
COMPLETE SPECIFICATION.
Improvements in Apparatus for Grinding Carding Engine Flats.
We, ROBERT ISHERWOOD of 258 Ainsworth Road, Carder, and JAMES ISHERWOOD
of 294 Ainsworth Road, Under Carder, both of Radcliffe near Manchester 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 sliding upon the surfaces which travel upon the curved guides or flexible
beuds of the carding engine. On the framing or sides of the carding engine we
mount adjustable fixings for carrying shafts or centres, and pulleys, discs, or rollers
for guiding the revolving flats over the grinding roller. To the adjustable fixings
are pivoted arms or levers on which the flats travel when being operated upon by the
grinding roller. When the flats are travelling over the grinding roller they operate
fingers or their equivalents attached to levers provided with cams, the latter operating
on the said arms or levers and so adjusts them as to allow of the wire surfaces being

page_text: Fig. 1 is a longitudinal elevation of our improved apparatus for guiding the
revolving flats employed in carding engines during the operation of grinding when
sliding upon the surfaces which travel upon the curved guides or flexible bends of the
carding engine-Fig. 2 is a plan-Fig. 3 is an end view, and Fig. 4 is a front view
of cam when operated to depress the fingers from the leading side of each flat when
grinding is completed.
A is the ordinary curved guides or flexible bends of the carding engine; B the
carding cylinder covered with the filletting C. On each side of the carding engine we
attach to the curved guides or flexible bends A the adjustable fixings D by means of
the setting screws E. The adjustable fixings D are provided with the bearings F
and G to carry the shafts, studs, or centres H and I respectively. On the shafts or
centres H and I are mounted on each side of the carding engine the pulleys, discs, or
rollers J and K for guiding the revolving flats L to and from the grinding roller M.
The peripheries of the pulleys, discs, or rollers J and K can be concaved or toothed as
shown, or plain as shown by dotted lines J2 and K2. The grinding roller M is carried
in the bearings N attached to the adjustable fixings O secured to the adjustable
fixings D by the cross bar P and screw Q. The fixings O are provided with the
usual slots to admit the screws R on the underside of the bearings N, which are
secured in position by the wing nuts S. To the adjustable fixings Dare pivoted, by the
centres U, the arms or levers T, on the upper side of which the flats L travel in their
passage to be operated upon by the grinding roller M. The arins or levers T are
provided with the projections K' carrying the springs J' to press the flats L on the
arms or levers T when the wire surfaces are being operated upon by the grinding
roller M. When the flats L are travelling over the grinding roller M they operate in
turn upon the fingers V attached to the levers W pivoted to the arms or fulcrums X on
the cams Y. Each cam Y is mounted on the centre Z in the bearing A¹ on each
adjustable fixing D. One end of each arm or lever T rests on the cams Y which, as
the flats push forward the fingers V, operates the cams Y as shown in Fig. 4, thus
causing the arms or levers T to drop slightly to allow of the wire surfaces B¹ of the
flats being guided in their correct position over the grinding roller M to be
uniformly ground to the inclination of their working surfaces. The levers W are
fitted with the pins or centres C¹, which slides up the incline D¹ as shown in Fig. 4
when the fingers V are being pushed forward by the sliding action of the flats L, by
which action the ends F¹ of the fingers V engaging with the flats L are depressed
below the surface E¹ of the flats L. Immediately the ends F¹ are depressed below the
surface E¹ the cams Y and fingers V assume their normal position ready for the next
advancing flat by the action of the springs G₁coupled to the levers H' on the centres Z.
The weighted ends S¹ of the lovers W are provided to maintain the correct working
position of the fingers V when liberated from the inclined planes D', or the fixed

page_text: projections or disengagers P¹. The springs G¹ can be substituted by the weights L'
as shown in dotted lines in Fig. 4. The upper end of each spring G' is attached to
the adjustable fixings O by the hook N¹. If desired the inclined planes D' on the
arins or levers T can be dispensed with wherein the fingers V are depressed in their
travel by coming in contact with the fixed projections or disengagers P¹ shown in
dotted lines in Figs. 1 and 2. The projections or disengagers P¹ are fixed to the arms
or levers T. When grinding has been performed the grinding roller M is removed
from the fixings O by simply releasing the thumb screws or wing nuts S; and .the
fingers V are moved out of the path of the travelling flats L by the screws M' mounted
in the arms or fulcrums X, being screwed against the weighted ends S¹ of the
levers W to depress the ends F1 of the fingers V below the surface E¹ of the
flats L.
This invention dispenses with all liability to strain from deflection owing to the
flats passing over the grinding roller on their own bearing surfaces; and can be
applied in any suitable or convenient position on the carding engine.
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. Operating the arms or levers T by the travelling action of the flats L to guide
the wire surfaces of the latter to the inclination of their working surfaces over the
grinding roller, substantially as described and shown on the drawings.
2. In apparatus for grinding the flats of revolving flat carding engines when
sliding upon the surfaces which travel upon the curved guides or flexible bends of the
carding engine, consisting of the adjustable fixings D, arms or levers T with or
without the inclined planes D¹, cams Y, arms or fulcrums X carrying the levers W,
pins C and fingers V to operate the arms or levers T by the travelling action of the
flats L to allow of the wire surfaces B₁ of the flats being guided in their correct
position over the grinding roller M to be uniformly ground to the inclination of their
working surfaces, substantially as described and illustrated.
3. In combination with the pivoted arms or levers T the use of the inclined planes D'
for the purpose of releasing the fingers V from the flats after grinding has been per-
formed, substantially as described and shown on the drawings.
4. In combination with the arms or levers T the use of the fixed projections P¹ for
the purpose specified.
5. In combination with the arms or levers T the use of the springs J¹ for the
purpose specified.
6. The general combination and arrangement of parts forming our improved
apparatus for guiding the flats of revolving flat carding engines to the inclination of
their working surfaces over the grinding roller, substantially as described and as shown
on the drawings.
Dated the 11th June 1890.
EDMUND CHADWICK,
Agent.