IMPROVEMENTS IN THE MANUFACTURE OF EMERY ROLLERS USED FOR GRINDING CARDS
Year: 1879

page_text: LETTERS PATENT to John Hayes, of Oldham, in the County of Lancaster,
for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF EMERY
ROLLERS USED FOR GRINDING CARDS."
Sealed the 25th May 1880, and dated the 28th November 1879.
PROVISIONAL SPECIFICATION left by the said John Hayes at the Office
of the Commissioners of Patents on the 28th November 1879.
"
JOHN HAYES, of Oldham, in the County of Lancaster. IMPROVEMENTS IN
THE MANUFACTURE OF EMERY ROLLERS USED FOR GRINDING CARDS."
The object of this Invention is so to manufacture emery rollers used for grinding.
the points of card cylinders or rollers used in carding cotton and other fibrous
substances as to get rid of or throw off all dirt or hard substances which would
injure the rollers or otherwise cause accidents.
I take a roller of the required size made of galvanized or tinned sheet iron, and
I fix, by soldering to the surface thereof, a wire coiled in a spiral direction from
end to end of the roller, the coils being, say, about four or five inches apart.
Parallel with this wire (say, at about one inch distance) I solder onto the roller
a second coiled wire. I then fill in the wide spaces between the coils with the
emery composition in the usual manner, leaving the narrow coil quite clear and
free from emery, thus producing an emery roller with a clear spiral space running
round it from end to end.
This spiral space allows all dirt and hard substances to fall out, and thus pre-
vents injury to the cards, and at the same time grinds a sharper point upon the
wire than the plain emery roller would do. The wire forms a kind of selvage to
the emery composition at the edges of the coils, and prevents it from breaking
away and becoming ragged or rough at the edge.

page_text: [
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Hayes in the Great Seal Patent Office on the 28th May 1880.
JOHN HAYES, of Oldham, in the County of Lancaster. "IMPROVEMENTS IN
THE MANUFACTURE OF EMERY ROLLERS USED FOR GRINDING CARDS.'
The object of this Invention is so to manufacture emery rollers used for grinding
the points of card cylinders or rollers used in carding cotton and other fibrous
substances as to get rid of or throw off all dirt or hard substances which would
injure the rollers or otherwise cause accidents.
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 Drawing illustrative thereof, and have inarked the
same with letters of reference corresponding with those in the following explanation
thereof.
I take a roller a, a, of the required size made of galvanized or tinned sheet iron,
and I fix by soldering to the surface thereof, a wire coiled, as at b, b, in a spiral
direction from end to end of the roller, the coils being, say, about four or five inches
apart.
Parallel with this wire (say, at about an inch distance) I solder onto the roller a
second coiled wire, as at c, c, I then fill in the wide spaces c, d, between the coils with
the emery composition in the usual manner, leaving the narrow coil e, e, quite clear
and free from einery, thus producing an emery roller with a clear spiral space e, e,
running round it from end to end. This spiral space allows all dirt and hard substances
to fall out, and thus prevents injury to the cards, and at the same time grinds a
sharper point upon the wire than the plain emery roller would do. The wire forms
a kind of selvage to the emery composition at the edges of the coils, and prevents
it from breaking away and becoming ragged or rough at the edge. This forms an
essential feature of the Invention.
'
Having now described the nature 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 wish it to be understood that I claim as my lavention the manufacture of
emery rollers used for grinding cards with a clear spiral space running round them
from end to end, substantially in the manner and for the purposes hereinbefore set
forth and described.
In witness whereof, I, the said John Hayes, have hereunto set_my_hand
and seal, this Twenty sixth day of May, in the year of our Lord One