Improvements in and connected with the Grinding-rollers employed for Grinding the " Card Wire" upon the Flats," Cylinders," and "Doffers," and other "Card Wire" Surfaces of Carding Engines.
Year: 1889

page_text: Date of Application, 25th Jan., 1889
Complete Specification Left, 25th Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
<<
66
Improvements in and connected with the Grinding-rollers employed
for Grinding the " Card Wire" upon the Flats," Cylinders,"
and "Doffers," and other "Card Wire" Surfaces of Carding
Engines.
.
We JAMES EDWARD PLATT of Hartford Works, Oldham in the county of Lancaster
Engineer and JAMES FIDLER of the same place Machinist do hereby declare the
nature of this invention to be as follows
According to the first method of carrying our invention into effect we cover the
roller to be used as a grinding-roller with a coating or coatings of glue or other
cement and emery or other abrasive substance or material. We then place the roller
in a lathe or other suitable machine and cause it to revolve in contact with another
roller having a plain smooth surface until such time as the emery surface of the roller
to be used as a grinding roller becomes level and circular and of the diameter required.
We form a mould of suitable length the inner surface of which is formed of the size
of the grinding-roller to be constructed and we form in the interior of the mould a
series of ridges and grooves, each of such ridges and grooves being formed of a zig-
zag or wave-like form or being directed to and fro laterally or we may form ridges
and grooves having the form of screw-threads or forming a series of concentric rings.
The said mould we divide or cut lengthwise into two or more portions.
Instead of the mould being formed of one piece and cut or divided into two or
more portions the said mould may be formed in two or more portions held together in
any suitable manner while being formed with the ridges and grooves.
While the glue or cement and emery or other abrasive material with which the
roller to be used as a grinding roller is covered, is sufficiently plastic we place the
said roller in the interior of the mould before mentioned and compress the mould in
any suitable manner upon the roller so as to impart to the surface of the glue or
cement and emery or other abrasive material upon the said roller a form corresponding
to that of the interior of the mould. After the glue or cement and emery or other
abrasive material upon the roller to be used as a grinding-roller has become hardened
we remove any projections resulting from the joints of the mould by means of a
revolving emery-disc or other dise the surface of which has been suitably prepared
for the purpose.
In order that the mould may be readily forced upon the roller we according to one
method form the outside of the mould of a taper forin and provide a ring or tube the
interior of which ring or tube is also formed taper. After the roller to be used as a
grinding-roller has been placed within the mould and the tube or ring has been placed
upon the outside of the mould the whole is placed in a suitable press and the ring or
tube is then forced upon the mould.
According to a further method of carrying our invention into effect we cover fillets
of cloth or other suitable material with glue or other cement and emery or other
suitable abrasive material. We then pass the cloth or other material covered with
glue or cement and emery or other suitable abrasive material between a pair or
pairs of smooth rollers so as to reduce the coating of glue or cement and emery or
other abrasive material to an equal thickness. We then pass the fillet of cloth
or other material over a heated surface or through a heated chamber until the glue
or cement and emery or other abrasive material has become partially hardened and
afterwards pass such fillet between a pair of rollers one of which has a plain surface
whilst the other is formed with a series of grooves and ridges each of which grooves
and ridges has a zig-zag or wave-like form or is directed to and fro laterally or is

page_text: formed with a series of grooves and ridges of a form similar to screw-threads or in
the form of a series of parallel circular grooves. In some cases instead of
employing the pair of rollers last mentioned we substitute for the grooved roller of
such pairs of rollers a stamping or pressure plate in the surface of which we
provide or form ridges and grooves similar to those above referred to as being
formed upon the said roller. We in some cases propose to employ a single roller
provided or formed with grooves and ridges similar to those upon the roller above
mentioned and pass the fillet of cloth or other material covered with glue or cement
and emery or other abrasive material between such roller and a metal plate the
said roller being situate at such distance from the metal plate as to impress the
glue or cement and emery or other abrasive material with grooves and ridges.
After the fillet of cloth or other material covered with glue or cement and emery
or other abrasive material has been formed with grooves and ridges in the glue or
cement and emery or other abrasive material and dried, such fillet of cloth or
other material is wrapped upon a suitable roller and secured by cramps or screws
in suitable
any
manner and is then used for the
"card
of grinding
purpose
wire.'
Dated this Twenty-fourth day of January 1889.
W. T. CHEETHAM,
Manchester, Agent to the Applicants.
COMPLETE SPECIFICATION.
66
Improvements in and connected with the Grinding-rollers employed
for Grinding the "Card Wire" upon the "Flats," Cylinders,"
and "Doffers," and other "Card Wire" Surfaces of Carding
Engines.
We, JAMES EDWARD PLATT of Hartford Works, Oldham in the county of
Lancaster Engineer and JAMES FIDLER of the same place, Machinist 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 :-
In carrying our invention into effect we cover the roller to be used as a grinding
roller with a coating or coatings of glue or other cement and emery or other
abrasive substance or material. We then place the roller in a lathe or other suitable
machine. and cause it to revolve in contact with another roller having a plain
smooth surface until such time as the emery surface of the roller to be used as a
grinding roller becomes level and circular and of the diameter required.
We form a mould of suitable length the internal diameter of which is formed of
the same size as that of the grinding roller to be constructed, and we form in the
interior of the mould a series of ridges and grooves each of such ridges and grooves
being formed of a zig-zag or wave-like form or being directed to and fro laterally, or
we may form ridges and grooves having the form of screw-threads or forming a
series of concentric rings. We cut or divide the said mould lengthwise into two or
more portions or segments. Instead of the mould being formed of one piece having
grooves and ridges on its inner surface and afterwards cut or divided into two or
more portions or segments, the said mould may in the first instance be formed in two
or more portions which are held together in any suitable manner whilst the ridges and
grooves are formed on its inner surface.
The roller to be used as a grinding roller having been covered as previously
described and whilst the glue or cement and emery or other abrasive material with
which the roller has been covered is sufficiently plastic we enclose the said roller in
the mould before mentioned by placing the portions or sections into which it is
divided, round it and enclose the whole by a ring or tube and then compress the
mould in any suitable manner upon the roller so as to impart to the surface of the

page_text: glue or cement and emery or other abrasive material upon the said roller a form corre-
sponding to that of the interior of the mould. The roller is then removed from the
mould and after the glue or cement and emery or other abrasive material upon the
roller to be used as a grinding roller has become hardened we remove any projections
resulting from the joints of the mould by means of a revolving emery disc or other
dise the surface of which has been suitably prepared for the purpose.
In order that the mould may be readily forced upon the roller we form the outside
of the mould of a taper form and provide a ring or tube the interior of which ring or
tube is also formed taper. After the roller to be used as a grinding roller has been
placed within the mould and the tube or ring has been placed upon the outside of the
mould the whole is placed in a suitable press and the ring or tube is then forced upon
the mould.
In the accompanying drawings Fig. 1 is a plan and Fig. 2 a sectional elevation of
an apparatus or mould for forming the ridges and grooves on the emery surface of
grinding rollers.
Fig. 3 is an elevation showing the ridges and grooves on the emery surface of a
grinding roller after the roller has been taken from the mould in which the grooves
and ridges have been formed.
In Figs. 1 and 2 the same letters refer to corresponding parts. (a) is the base
plate which is provided with the circular raised part (a) and (b) is the top plato of
the mould corresponding in diameter to the part (a). (c) is a stud which is held in
position by the plates (a) and (b). (d) is the roller which has been coated with the
emery and cement (d), (e) is the mould which forms the grooves on the emery
surface (d) of the grinding roller (d).
The outer surface (e¹) of the mould (e) is made of a taper form. (✓) is the outer
ring or tube which forces the portions or sections of the mould (e) into the emery
surface (d) of the grinding roller (d) until they are prevented from being pressed
further inwards by the part (a¹) and top plate (b). The inner surface (f) of the
tube (f) is made of a taper form corresponding to the taper of the outer surface (e¹)
of the mould (e). The mould (e) is shown in the drawing Fig. 1 as being divided
or cut into six sections which number we find to be well adapted for the purposes
of our invention.
The grinding roller (d) having been coated with emery or other abrasive material
as herein before described is then placed upon the stud (c) which is supported by the
base plate (a). The top plate () is then placed upon the stud (c). The portions or
segments of the mould (e) are then placed round the grinding roller (d) and the outer
ring or tube (f) is then placed upon the outside of the portions or segments of the
mould (e).
The whole apparatus is then put under a suitable press and the outer ring (f) is
forced upon the mould (e) as shown in the drawing Fig. 2. By these means we
impart to the surface of the glue or cement and emery or other abrasive material upon
the said roller a form corresponding to that of the interior of the mould (e). After
the glue or cement and emery or other abrasive material upon the roller to be used as
a grinding roller has become hardened we remove any projections resulting from the
joints of the mould by means of a revolving emery disc or other disc the surface of
which has been suitably prepared for the purpose.
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. The hereinbefore described method of forming ridges and grooves having a
waving to and fro lateral motion on the emery or other abrasive surface of a grinding
roller by means of a mould constructed, arranged, employed and operating sub-
stantially in the manner and for the purposes hereinbefore described in reference to
and illustrated in and by the accompanying drawings.

page_text: 2. The construction, arrangement, and use of a mould for the purpose of forming
ridges and grooves on the emery or other abrasive surface of a grinding roller, sub-
stantially in the manner and for the purposes hereinbefore described in reference to
and illustrated in and by the accompanying drawings.
Dated this Twenty-fourth day of October 1889.
W. T. CHEETHAM,
Manchester, Agent to the Applicants.