Year: 1887

page_text: Date of Application, 13th Oct., 1887
Complete Specification Left, 13th July, 1888
Complete Specification Accepted, 17th Aug., 18
:
I, JOHN SYKES, of the firm of Joseph Sykes Brothers, of Acre Mills, Lindley, near
Huddersfield in the County of York, Card Maker, do hereby declare the nature of this
invention to be as follows:-
This invention relates to grinding or cutting on cards for carding fibres, what is
known as the "needle point," and the invention consists of an improved serrated or
angled revolving cutting or grinding instrument, such instrument being applied to, or
forming part of a carrying roller or cylinder revolving when performing the operation
of grinding.
The improved appliance for purpose aforesaid, constructed according to this my
invention is composed of consolidated emery and consists of a longitudinal strip or bar
of such material, the working or grinding surface thereof being serrated or toothed.
The said strip may be secured longitudinally on the circumference of a roller in a
metal holding device, fixed to the roller longitudinally, and having a dovetail formed
therein to permit the emery strip being slided endwise into the said grove by which it
is held in working position and that when worn, it may be removed and replaced by a
new strip or the strip may be formed of a portion of the diameter of a roller-either
wholly constructed of, or covered by consolidated emery.
In practice, I prefer to use more than one of the strips referred to, at intervals of
the circumference of a carrying roller, and such roller may consist of a short roller
caused to traverse to and fro across the cards-or it may consist of a roller equal to
the whole width of the cards to be ground.
I am aware that rollers of consolidated emery, or covered with emery having
circumferential V grooves thereon have been used or suggested for grinding cards,
and to such rollers I lay no claim.
The strips operate intermittently on the cards and are found more useful in
practice.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus to be Employed in "Needle Point"
Grinding Cards for Carding Fibres.
1, JOHN SYKES of the firm of Joseph Sykes Brothers, Acre Mills, Lindley near
Huddersfield in the County of York, Card Maker, 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 :—
This invention relates to apparatus for grinding, or cutting the teeth of cards of
carding engines to what is known as the "needle point" and it consists briefly in
employing a grinding roller having on the periphery thereof a series of readily
removeable spaced toothed strips of emery, or metal which in passing through the
teeth of the cards of the cylinder or doffer grind the sides, and in part the back of
the teeth from the point towards the bend in a more effective manner than by the
ordinary grinding roller, a further advantage being that any one of the strips can be
readily replaced when worn.
Such being the nature and object of my said invention the following is a complete
description of same reference being had to the accompanying drawings in which:-
Fig. I is an end elevation of a grinding roller having the removeable strips applied
thereto.
Fig. 2. is a front elevation of a portion of said,roller.
Fig. 3. shows one of the grinding strips detached from the roller.
Fig. 4, shows a form of short grinding roller mounted upon a traversing device with
a part of a doffer, or cylinder.
To
Fig. 5 is a section on the line x Fig. 4.
Fig. 6. shows a similar roller to Fig. 4, but with strips having slanting teeth, said
strips being also placed on the roller at an angle.
Fig. 7 shows on a larger scale one of the last mentioned strips detached.
Fig. 8 is a front elevation of a grinding roller somewhat similar to that shown in
Figs. 1 and 2 but having the teeth on the strips differently arranged.
Upon the roller 1 which is of wood or metal, I attach by screwing or otherwise,
metal holders 2 having dovetail grooves therein in which are held strips 3 of consolidated
emery, or of metal such as steel, or copper having the serrations or teeth cut, cast, or
moulded on them as shown. These can be driven out endwise, when worn, and
replaced by new ones. They may be arranged on the rollers as shown in Figs. 1. 2. 4
and 5 or the teeth may be formed at intervals only on the strips which are then
arranged as shown in Fig. 8. where as will be seen the teeth of one strip alternate with
the teeth of the next.
If the teeth of the strips are set upon a slant as shown in Figs. 6 and 7 they may
be placed upon a roller in the manner shown in the former figure, that is at an angle.
It is necessary however, here that the strip and the holders 2 should have a slight

page_text: twist given to them so as to pad or fit to the face of the roller. This angular setting
of the teeth may be used either upon the short traversing roller shown in Fig. 6 or
upon the roller shown in Figs. 1 and 2 which is adapted for grinding the whole of the
teeth upon the cards of the cylinder, or doffer at once.
Whatever arrangement of strips are employed however it is essential that there
should be blank spaces between them as the teeth of the strip then operate intermittently
upon the card teeth and effect a more perfect grinding.
As shown in Figs. 4, 5 and 6, the strips 3 and holders 2 are arranged upon a short-
roller 1 mounted on what is well known as the "Horsfall" grinder travelling device,
consisting of a cylinder 4 having a slot 5 therein, through which passes the pin 6 one
end of which is affixed to the roller 1, the other entering the right, and left hand
grooves of the shaft or worm 7. Motion imparted to this worm from the pulley 8
causes the roller 1 to be traversed backwards and forwards upon the cylinder 4 from
end to end of same, so that the teeth thereon grind the teeth 9 of the cylinder or
doffer 9 as the case may be to the fineness of point required which may be regulated
according to the distance the grinding teeth pass in between the teeth of the cards.
Where the grinding strips are of metal I prefer to roughen the sides of the teeth
thereof, or if preferable the metal teeth may be coated with emery or similar abraiding
substance.
I am aware that grinding rollers of consolidated emery or emery coated having a
series of circumferential ✓ shaped grooves thereon have been used or suggested for
grinding cards and to such I lay no claim, but, having now particularly described and
ascertained the nature and object of my said invention and in what manner the same
is to be performed I declare that, what I do claim is :—
In apparatus for grinding card teeth a grinding roller carrying readily removeable,
and suitably spaced toothed grinding strips substantially as, and for the purpose
described.
Dated this 12th day of July 1888.
JOHN SYKES.
By his Agent, Walter Brierley,
Town Hall Buildings, Halifax.