IMPROVEMENTS IN MACHINERY OR APPARATUS FOR GRINDING AND SHARPENING THE WIRE CARDS EMPLOYED IN CARDING ENGINES
Year: 1880

page_text: LETTERS PATENT to George Etty, of Manchester, in the County of Lancaster,
for an Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
GRINDING AND SHARPENING THE WIRE CARDS EMPLOYED IN CARDING
ENGINES."
PROVISIONAL SPECIFICATION left by the said George Etty at the Office
of the Commissioners of Patents on the 13th November 1880.
GEORGE ETTY, of Manchester, in the County of Lancaster. "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR GRINDING AND SHARPENING THE WIRE CARDS
EMPLOYED IN CARDING ENGINES."
The object of this Invention is to grind and sharpen to any required angle the
points of the teeth of wire cards in the strip, and before they are applied to the
surface of the carding cylinders or rollers, the Invention consisting principally in
the combination of an emery or other grinding wheel with a rod or roller of small
diameter over which the back of the card passes, and a guard or shield which is
capable of adjustment and which holds the teeth of the cards at the required angle
against the emery wheel.
The bearings in which the axis of the emery wheel runs are also adjustable, and
thus they may be set to sharpen or point the teeth to any angle required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and of
an Order of the Lord Chancellor, filed by the said George Etty in the Great
Seal Patent Office on the 24th May 1881.
GEORGE ETTY, of Manchester, in the County of Lancaster. 'IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR GRINDING AND SHARPENING THE WIRE CARDS
EMPLOYED IN CARDING ENGINES."
The object of this Invention is to grind and sharpen to any required angle the
points of the teeth of wire cards in the strip and before they are applied to the
surface of the carding cylinders or rollers, the Invention consisting principally in
the combination of an emery or other grinding wheel with a rod or roller of small
diameter over which the back of card passes, and a guard or shield which is capable
of adjustment and which holds the teeth of the cards at any required angle against
the emery wheel.
The bearings in which the axis of the emery wheel runs are also adjustable, and
thus they may be set to sharpen or point the teeth to any angle required.
Such being the nature and object of my said Invention, I will now proceed to
describe in detail the manner in which the same is to be or may be performed or
carried into practical effect, and in order that the same may be clearly understood
I have annexed hereunto a Sheet of Drawings illustrative thereof, and have
marked the same with letters of reference corresponding with those in the following
explanation thereof.
The annexed Drawing represents a side elevation of my improved machine or
apparatus for grinding and sharpening the strip of cards.
a, a, is part of the framing of the machine, and b, b, is the main driving shaft,
upon which are three band pulleys giving motion by means of the straps or bands
c, c, to the three emery or other grinding wheels d, d, d. The grinding wheels
d, d, d, are grooved circumferentially so as to grind the sides of the points and
have an endwise reciprocating motion imparted to them as usual. These wheels
are carried in bearings e, e, e, which are capable of adjustment both vertically and
horizontally in the brackets f,, by means of screws g, g, g, being fixed when
adjusted by means of locknuts h, h, h. i, i, i, are the guards or shields, which arc
also capable of adjustment so as to regulate the angle of the points of the cards,
and k, l, k, are the bearing rollers over which the strip of card 1, 1, passes.
The strip of cards is drawn through the machine in the direction of the arrows
by two rollers (not shown on the Drawing) and passes under two tension rollers
m, m, between the grinding wheels d, d, d.
Having now described the mature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I would remark in conclusion that I do not wish to limit myself to three or
any other particular number of grinding wheels in a machine, but I claim the com-
bination in such a machine of the adjustable emery or other grinding wheel with a
supporting roller or rod (over which the strip of card passes), and an adjustable
guard or shield to regulate the angle and length of the points, whereby I am
enabled to grind the teeth of the cards in the strip, as herein before described.
In witness whereof, I, the said George Etty, have hereunto set my hand and
seal, this Fourteenth day of May, in the year of our Lord One thousand
eight hundred and eighty one.
GEORGE ETTY. (L.S.)