CERTAIN IMPROVEMENTS IN APPARATUS FOR GRINDING 'CARDS TO BE EMPLOYED IN PREPARING COTTON AND OTHER FIBROUS MATERIALS
Year: 1867

page_text: LETTERS PATENT to Joseph Standring Dronsfield.of the Firm of Dronsfield
Brothers, Machinists, of Oldham, in the County of Lancaster, for the
Invention of "CERTAIN IMPROVEMENTS IN APPARATUS FOR GRINDING 'CARDS
TO BE EMPLOYED IN PREPARING COTTON AND OTHER FIBROUS MATERIALS,"
Sealed, the 12th July 1867, and dated the 23rd January 1867.
PROVISIONAL SPECIFICATION left by the said Joseph Standring Drousfield
at the Office of the Commissioners of Patents, with his Petition, on the
23rd January 1867.
I, JOSEPH STANDRING DRONSFIELD, of the Firm of Dronsfield Brothers,
Machinists, of Oldham, in the County of Lancaster, do hereby declare the
nature of the said Invention for "CERTAIN IMPROVEMENTS IN APPARATUS FOR
GRINDING 'CARDS' TO BE EMPLOYED IN PREPARING COTTON AND OTHER FIBROUS
MATERIALS," to be as follows:-
My Invention relates to machinery or apparatus used for grinding "card"
rollers and cylinders, and is designed for the purpose of moving the card roller
or surface to or from the periphery or surface of the emery covered grinding
roller by an improved arrangement of mechanism which occupies less space
and is more simple than that hitherto employed.
The improvements consist in mounting the "steps" or bearings which
support the "card roller "under operation near the two ends of a shaft which
has bearings in each end framing of the machine, to this shaft is attached a
toothed quadrant into which a worm gears, so that by turning this worm the
Peine 8d1

page_text: shaft is caused to perform part of a revolution, and as it supports the "card
roller" in the tearings attached to the shaft the "card" surface
may bemoved
to or from the grinding roller by turning the worm, and thus bevil and other
gearing is dispensed with. An exhaust fan is employed beneath the grinding
roller to remove the dirt and dust caused by grinding.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Standring Dronsfield in the Great Sea! Patent Office
on the 23rd July 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
STANDRING DRONSFIELD, of the Firm of Dronsfield Brothers, Machinists, of
Oldham, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of January, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Joseph Standring Dronsfield, Her special license that I, the said Joseph
Standring Dronsfield, my executors, administrators, and assigns, or such others
as I, the said Joseph Standring Dronsfield, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and lawfully
might make,use,exercise, and vend, within the United KingdomofGreat Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "CERTAIN
IMPROVEMENTS IN APPARATUS FOR GRINDING CARDS' TO BE EMPLOYED IN
PREPARING COTTON AND OTHER FIBROUS MATERIALS," upon the condition (amongst
others) that I, the said Joseph Standring Dronsfield, my executors or admi-
nistrators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Joseph Standring Dronsfield, do hereby
declare the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement and accompanying Drawings (that is to say):-
My Invention relates to machinery or apparatus used for grinding "card"
ollers and cylinders, and is designed for the purpose of moving the card roller

page_text: or surface to or from the periphery or surface of the emery covered grinding
roller by an improved arrangement of mechanism which occupies less space
and is more simple than that hitherto employed..
The improvements consist in mounting the "steps" or bearings which
support the "card roller" under operation near the two ends of a shaft which
has bearings in each end framing of the machine, to this shaft is attached a
toothed quadrant on to which a worm gears, so that by turning this worm the
shaft is caused to perform part of a revolution, and as it supports the "card"
roller in the bearings attached to the shaft the "card" surface may be moved
to or from the grinding roller by turning the worm, and thus bevil and other
gearing is dispensed with. An exhaust fan is employed beneath the grinding
roller to remove the dirt and dust caused by grinding.
In order that the Invention may be better understood and explained in
detail I have hereunto attached a Sheet of Drawings made upon a scale of
about three inches to the foot.
Fig. 1 represents an end elevational view of our improved apparatus for
grinding card rollers; Fig. 2 represents a detached end sectional view, the
arrangement of gearing for regulating the distances between the centres of
the "card" and grinding rollers, and also for adjusting the card roller to the
surface of the grinding roller, and Fig. 3 represents a front elevation of the
same apparatus.
In Figs. 1 and 2, a, a, is the framing, the machine in which is mounted and
supported the grinding roller b, which is covered with coarse emery, as usual;
the shaft of the card roller c is mounted in the "steps" or bearings d when the
card surface has to be submitted to the action of the grinding roller, such
bearings being secured to and project from the shafte, which is supported in
the bearings f, f, the said shaft being parallel with the axis of the grinding
roller b; the projecting arms and steps d supporting the "card roller" are
secured to the shaft e by means of the clamp g,g. The lower shaft or stud e¹
is provided with the worm wheel h, which is actuated by means of the worm i
for the purpose of regulating and adjusting the distance between the card
surface and the grinding roller, so that when the wheel is turned the
card roller is caused to advance or recede from the surface of the grinding
roller, and the amount of grinding is thereby regulated. Beneath the
grinding roller the fan m is placed, which is driven by the gearing and
pulleys n for the purpose of accumulating and removing the dust and grit
caused during the operation of grinding, and by the aforesaid arrangement
themachine occupies less space and is more simple than the grinding apparatus
now employed for the purpose.

page_text: Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, I wish it to be distinctly
understood that I claim the novel arrangement and construction of apparatus
and gearing for regulating and adjusting the surface of the card roller with
respect to the grinding roller when under the operation of grinding, also the
general arrangement and construction of apparatus employed for the purpose
of grinding as herein-before described, set forth, and fully illustrated in the
Drawings attached.
In witness whereof, I, the said Joseph Standring Dronsfield, have here-
unto set my hand and seal, this Twelfth day of July, in the year of our
Lord One thousand eight hundred and sixty-seven.
JOSEPH S. DRONSFIELD. (L.S.)