IMPROVEMENTS IN MACHINERY FOR GRINDING OR SHARPENING THE CARD CYLINDERS AND ROLLERS OF CARDING ENGINES."
Year: 1856

page_text: LETTERS PATENT to Joseph Rigby, of Ashton-under-Lyne, in the County
of Lancaster, Mechanic, for the Invention of "IMPROVEMENTS IN MACHINERY
FOR GRINDING OR SHARPENING THE CARD CYLINDERS AND ROLLERS OF CARDING
ENGINES."
.
FOR GRINDING OR SHARPENING THE CARD CYLINDERS AND ROLLERS OF CARDING
ENGINES."
Sealed the 28th October 1856, and dated the 30th April 1856.
PROVISIONAL SPECIFICATION left by the said Joseph Rigby at the Office
of the Commissioners of Patents, with his Petition, on the 30th April
1856.
I, JOSEPH RIGBY, of Ashton-under-Lyne, in the County of Lancaster,
Mechanic, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY FOR GRINDING OR SHARPENING THE CARD CYLINDERS AND
ROLLERS OF CARDING ENGINES," to be as follows:-
It relates to an improved combination and arrangement of mechanism (self-
acting) for "grinding "the cylinders of carding engines, which is applied to
them in their places, and an improved combination and arrangement of
mechanism (self-acting) in which card rollers are placed to be ground.
The first combination of mechanism consists in a "strickle," which is made
to extend across the entire breadth of the card cylinder to be operated upon,
and it is of convenient breadth; the operating surface, (which is covered with

page_text: emery or other grinding substance) is made concave, to correspond to the
convex surface of the cylinder to be ground. The "strickle" is placed in or
suspended from suitable bearings or supports secured to the frame of the
engine, so that it can be adjusted to the surface of the cylinder to be operated
upon, and it is arranged so that a short traversing movement can be imparted
to it in a direction across the breadth of the cylinder by a crank or cam,
actuated from some moving part of the engine. Arrangements are also made
to adjust the pressure of the "strickle upon the cylinder when required.
The second. combination of mechanism consists in a bar or bearer equal to
the rollers to be ground in length, which is placed in a suitable frame and in
guides, so that a short reciprocating movement can be given to it longi-
tudinally, which is obtained from a crank or cam. To this bar or bearer a
number of "strickles" are secured, say four, one on each of the four sides of
it, if made square. The strickles have concave surfaces, to suit the convex
surfaces of the card rollers. The card rollers are placed in suitable bearings
on the frame carrying the bar or bearer, and each of them is made so as to
be adjustable to the surface of its strickle; and revolving motion is imparted
to cach roller when against the surface of its "strickle "by a belt or belt, or
other suitable means. Arrangements may also be added for adjusting the
pressure of the rollers upon the operating surfaces of the "strickles" when
roauired
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Rigby in the Great Seal Patent Office on the 29th
October 1856,
.
..
كانت 10 2 ٣٥ ،
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPII
RIGBY,. of Ashton-under-Lyne, in the County, off-Lancaster, Mechanic, send
greeting.
WHEREAS Her most Excellent, Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth, day of April; in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth-year of Her reign,
did, for Herself, Her,heirs, and successors, give and, grant, unto me, the said
Joseph Rigby; Her, especial licence that I, the said Joseph Rigby, my execu-
tors, administrators, and assigns, or, such others as I, the said Joseph Rigby,
mý 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,

page_text: within the United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR GRINDING
OR SHARPENING THE CARD CYLINDERS AND ROLLERS OF CARDING ENGINES," upon 'tho
condition, amongst others, that I, the said Joseph Rigby, by an instrument
in writing under my hand and seal, 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 Rigby, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly 'described and ascertained in and the following
statement and accompanying Drawings (that is to say)—
"
My Invention relates to an improved combination and arrangement of
mechanism (self-acting) for grinding the cylinders of carding engines, which
is applied to them in their places, and an improved combination and arrange-
ment of mechanism (self-acting) in which card rollers are placed to be ground.
The first combination of mechanism consists in a "strickle," which is made
to extend across the entire breadth of the card cylinder to be operated upon;
it is of convenient breadth; the operating surface (which is covered with emery
or other grinding substance) is made concave, to correspond to the convex
surface of the cylinder to be ground. The strickle is placed in or suspended
from suitable bearings or supports secured to the frame of the engine, so that
it can be adjusted to the surface of the cylinder to be operated upon, and is
arranged also that a short traversing movement can be imparted to it in a
direction across the breadth of the cylinder by a crank or cam actuated from
some moving part of the engine. Arrangements are also made to adjust the
pressure of the "strickle" upon the cylinder when required.
The second combination of mechanism consists in a bar or bearer equal to
the rollers to be ground in length, which is placed in a suitable frame and in
guides, so that a short reciprocating movement can be given to it longitudinally,
which is obtained from a crank or cam. To this bar or bearer a number of
strickles" are e secured, two or more as convenient. The "strickles" havo
concave surfaces, to suit the convex surfaces of the card rollers. The card
rollers are placed in suitable bearings on the frame carrying the bar or bearer
having the "strickles " attached, and each of them is made so as to be adjust-
able to the surface of 'its strickle, and revolving motion is imparted to each
roller when against the surface of its strickle, by a belt or other suitable

page_text: means. Arrangements may also be added for adjusting the pressure of the
rollers upon the operating surfaces of the strickles when required.
The Drawings annexed hereto exhibit by Figs. 1, 2, 3, and 4, two methods
of carrying into effect that part of my Invention described as the first com-
bination of mechanism. Fig. 1 is a front elevation, and Fig. 2 a plan view
of one modification, and Fig. 2 and 3 are respectively corresponding views of
another modification.
b
The following is a description of the first modification:-Fig. 1 and 2, a are
two pins or studs supposed to be fixed" in the "bends" or side frame of the
engine, over the axis of the cylinder to be ground; upon each of these studs
or pins a fixing b is placed, the stud or pin a entering a socket formed in the
fixing; to these fixings (b) a cross or bearing bar c is secured by bolts. The
fixings (6) have vertical slots, which allow the cross or bearing bar c to be
raised or lowered to adjust it to the required height, and the bearing bar c
has horizontal slots, so that the distance between the fixings 6 may be adjusted
as required by each engine to be ground, the operation being facilitated by
the lever screw c¹. The cross or bearing bar c has two slide surfaces upon
it, on each of which a slide box d is fitted, both of which are connected
together by a bar e, so that when a reciprocating movement is given to one, it
is conveyed by the bar to the other. These slide boxes have each two hook
projections d' at the top and bottom; these hooks or projections are for the
purpose of holding and retaining the adjusting and suspending bars f in a
vertical position; to these bars the grinding strickle (9) is secured. It will
be seen that the suspending bars f are of less breadth below the projections or
hooks d; this provision allows the strickle (9) to be easily detached when
required, by lifting the strickle till the narrow parts of the suspending bars
come opposite the space between the hooks or projections d', which will
then permit them to be withdrawn. The upper part of each suspending bar
has a boss, through which a thumb screw f¹ screws, the end of which rests
upon the upper side of the slide box d. A wing nut f is placed on the thumb
screw to lock it, when the strickle has been adjusted to the cylinder to be
ground. The strickle g is formed of a plate of iron, to which a piece of dry
seasoned wood is secured by screws; the surface of this wood is made concave
and perfectly straight, to suit the convex surface of the cylinder to be ground,
and is carefully covered with emery in the same manner as ordinary strickles.
The iron back of the strickle may have applied to it, in place of the wood, a
preparation of cement similar to that employed to cover the surface of grinding.
rollers, the emery being attached to the cement in the same manner. The

page_text: length of the strickle exceeds the breadth of the cylinder to be ground to an
extent equal to the length of the reciprocation given to it so that the strickle
will never cease to act on the entire breadth of the cylinder.
I do not confine myself to the construction of strickle above described, as
the sheet or frame "strickle" may be used, but I prefer that which I have
described. Reciprocating movements are given to the slide boxes d, and thus
to the strickle g, by means of a shaft h, which has suitable bearings on the
cross or bearing bar c; on one end of this shaft a pulley h¹ is fixed, which is
driven by a belt from the axis of the cylinder to be ground, or some other
convenient rotating part of the engine. On the other end of the shaft ha
bevil wheel is fixed that geers with one on one end of a short shaft i, having
a bearing in the cross or bearing bar c; on the other end of this shaft a
crank or plate with a crank pin is fixed; this crank pin gives reciprocating
movements to the slide boxes d, by means of a connecting rod k, as shewn.
In the modification as shewn by Figs. 3 and 4, the parts a, b, c, f, and g,
correspond to those marked with similar letters and figures in Fig. 1 and 2;
the principal difference between this and the last modification being, that the
bar c is made to slide in the fixings b, the reciprocating movements are given
to it, and are thus conveyed to the suspended strickle g. The shaft or bearing
bar c is made round, its ends pass through holes formed in the fixings b; c
is a finger secured to the bar c, and passing through a hole made in the
adjoining fixing b; the object of this is to prevent the bar c from turning; c
are cotters to prevent the fixings 6 from falling off the ends of the bar c when
the strickle is removed from the cylinder to be ground; c', are square flanged-
blocks secured to the bearing bar c, as shewn best in Fig. 5. fare suspending
bars, held vertical by the blocks c; the lower ends are jointed to the strickle g;
the upper ends having each an adjusting thumb screw f, and lock nut f*;
the end of the thumb screw resting on the upper side of the flange box c'.
One of the fixings 6 has two bearings for two short shafts h and i; on one
end of the shaft h a pulley h' is fixed, which is driven by a belt from any
convenient rotating part of the engine; the other end of the short shaft h has
a screw worm fixed on it, that geers with a worm wheel ³, fixed on one end
of the short shaft i; on the other end of this shaft a crank is keyed, which is
connected by a rod k, jointed with it, and a fixing secured to the bearing bar c,
which thus receives the required reciprocations. The adjusting thumb screws
may be dispensed with, if the studs or pins a are arranged similar to those
employed to support the ordinary grinding roller, which can be screwed up
and down, and will so adjust the strickle to the cylinder to be ground. Both
fl

page_text: the "cylinder "and "doffer" of a carding engine may be ground at the same
time, by employing two of either of the combinations herein-before described,
and in this case the mechanism for producing the reciprocations of the
"strickle" in one of them may be dispensed with, the reciprocating movements
being conveyed from one of them to the other, by an arm fixed to the slide
bar of one strickle and entering a socket in that of the other strickle. The
whole weight of the strickles, when arranged as shewn in the "Drawings, is
borne by the adjusting screws, that if the cylinder is "out of truth "the
strickle will correct it, and after the "tops" have been removed it will cease to
grind till again set; but when the cylinder is "true," if thought desirable,
the "strickle" may be made to press with any force equal to or less than its
own weight upon the cylinder, by placing springs for the ends of the thumb
screws to rest upon, which springs may be made by the action of the thumb
screws to bear all or any portion of the weight of the "strickle," the difference
between the weight supported by the springs and the weight of the strickle
being the pressure exerted" by 'the strickle on the face of the cylinder. The
springs for this purpose may be vulcanized indian-rubber, or spiral or bow
metallic springs. Two or three sixteenths of an inch of action in the spring
employed will be sufficient, that is, springs which do not compress or bend to
à greater extent than above specified when the whole weight of the strickle is
on them will be sufficient. The arrangement of a bow metallic spring for
this purpose is shewn in Fig. 6; f, end of thumb screw, which enters a socket
in the bow spring, the ends of which rest on the top of the block c or slide
box d.
'
The manner of carrying into effect that part of my Invention described as
the second combination of mechanism, in which rollers are placed to be ground,
is illustrated by Figs. 7 and 8 on the annexed Drawings, Fig. 7 being a plan,
and Fig. 8 an end sectional view on the line A, B, Fig. 7. This part of my
Invention will be most readily described as follows: Take an ordinary
machine for grinding, say, two card rollers at the same time, substitute in
place of the emery roller a bar c, having strickles 9 attached, constructed as
herein-before described; this bar cmust be placed in bearings on the side
frames (A) of the machine, so as to slide longitudinally (same as the emery
roller); the same mechanism may be used to impart reciprocating motion to
the bar as is employed for the giving similar movements to the emery roller.
This is all the modification that is made, as the same mechanism may be used
to adjust the rollers to be ground' (B) against the strickles gas is employed
to adjust them against the emery roller. The pressure of the rollers upon

page_text: the strickles may be regulated if required by means of springs placed between
the ends of the adjusting screws and the bearings upon which they act.
I have now particularly described and ascertained the nature of my Inven-
tion, and the methods of carrying the same into effect, and wish it to be
understood that I do not claim as my Invention a grinding "strickle" equal
in length to the breadth of the cylinder to be ground, nor do I claim the
giving of reciprocating movements to such strickles; but what I claim as my
Invention is,-
Firstly, the combination and arrangement of mechanism for grinding
carding cylinders in their places, herein-before described; I particularly claim
as my Invention arrangements for adjusting the grinding strickles to the
cylinders to be ground, and the method of adjusting the pressure of the strickles
upon the cylinders, as herein-before explained.
Secondly, I claim the combination and arrangement of machines herein-
before described, in which 'card rollers' or cylinders are placed to be ground,
and the method of adjusting the pressure of the rollers or cylinders upon the
strickles, as herein-before described.
In witness whereof, I, the said Joseph Rigby, have hereunto set my hand
and seal, this Twenty-seventh day of October, in the year of our Lord
One thousand eight hundred and fifty-six.
JOSEPH RIGBY. (L.S.)
JOSEPH RIGBY. (L.S.)