IMPROVEMENTS IN CARDING ENGINES, FOR CARDING COTTON, AND OTHER FIBRES
Year: 1885

page_text: other Fibres.
I SAMUEL TWEEDALE, of Globe Works, Accrington, in the County of Lancaster,
Manager, do hereby declare the nature of my said invention for "IMPROVEMENTS
IN CARDING ENGINES, FOR CARDING COTTON, AND OTHER FIBRES to be as
follows:-
"
This invention relates, to what is known as the "flexible bend," for carrying the
travelling flats of cards, and consists of improved devices or appliances whereby
the radius of the said flexible bend, flats and cards, may be contracted, or expanded
or varied, and changed, in relation to the card cylinder, whilst at all times main-
taining true radius thereto.
"
For purpose aforesaid, according to this my invention, I employ two pliable
strips of metal saw cross cut and each tapered at one end, the tapered ends over-
lapping each other, these strips, span part of the circumference, of each end of the
cylinder, and form the Flexible bend." Or a flexible ring of metal having a
varying diameter and enclosing a pliable strip of metal as aforesaid, may compose
the "Flexible bend," and above are the card flats, so that when the said strips or
the thinner portion of the ring, and the taper strip, are moved, or drawn by screw,
and slot, or by wedge, the radius of the said flexible bends, and consequently that
of the card flats, will be varied whilst by the equalizing action of the tapered ends,
a true radius in all cases will be preserved.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Carding Engines for Carding Cotton and
other Fibres.
I SAMUEL TWEEDALE of Globe Works, Accrington, in the County of Lancaster,
Manager, do hereby declare the nature of iny said invention for "IMPROVEMENTS IN
CARDING ENGINES FOR CARDING COTTON, AND OTHER FIBRES" 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 what is known as the "flexible bend" for carrying the
travelling flats of cards, and consists of improved devices or appliances whereby
the radius of the said flexible bend, flats, and cards, may be contracted, or expanded
or varied, and changed, in relation to the card cylinder, whilst at all times main-
taining true radius thereto.
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
forming a part of this specification in which:-
Fig. 1, sheet 1, is an end elevation shewing such part of a carding engine as is
necessary for purpose of illustrating this invention.
Fig. 2, sheet 2, is a like view,
Fig. 3, is a cross section of Fig. 2.
At 1 is the framing of the carding engine 2 the bend, the rim 3 of which is
turned to a true circle in a lathe from the centre 4-On the circumference of this
circle I place the taper strip 5 and on the top of this I place another strip 6 of
exactly the same taper but with its smaller end in the opposite direction-It is
evident that as the lower strip 5 rests on a true circle the upper surface will have
a graduating increased radius according to the taper of the strip and that by placing
a similar strip 6 of equal taper, with the tapered end the opposite way, I shall
again get a true circle round the centre 4-The flats rest on the outer surface of
the flexible strip 6-When it is desired to reduce the radius of the outer surface of
the strip 6 I move the smaller ends of the strips 5 and 6 in direction of the arrows
and as the top strip 6 is flexible it yields to the weight of the flats resting thereon
which keep the two strips pressed against each other and against the circular rim 3
of the bend 2 and thus maintain a true circle of varying diameter on the outer
surface of the strip 6-When it is required to increase the radius, the strips 5, 6,
are moved in the opposite direction 13 and 14 are the adjusting screws and nuts
for moving the parts 5, 6-the rim 3 of the bend 2 see Fig. 2, can support a
complete ring of metal 5, having a varying outer diameter, and on which rests the
pliable strip of metal 6 having a tapered end equivalent to the parts 5, 6, of Fig. 1,
but in this case ring 5 alone is to be moved in order to change or vary diameter.
The moving and setting the parts 5 and 6 is effected by nuts and screws 13
working through the brackets 14, and when set the parts are secured by the
clamps 7 and 8, 9 is the doffer, 10 licker in, 11, 12 the rollers for supporting the
flats, or in the example Fig. 2 a pinion 15 gearing with rack 16, attached to or
forming part of the rim 15 may be employed, these being secured when set in

page_text: position by means of the bolts 17-18, and 19 (Fig. 2), are angle brackets or stop
pieces to prevent the flexible strip 6 moving end wise when the ring of metal 5 is
being moved or turned.
When desirable to increase the flexibility of the part 6, saw gates may be cut or
formed therein.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I would have it
understood that I lay no claim to the screw adjustment or rack and pinion
arrangement for moving the parts 5, and 6, but I declare that what I do claim is
The reverse taper parts 5, 6, in combination with a circular supporting surface
such as 3, for the purpose herein described,
Dated this 10th day of October 1885.
SAMUEL TWEEDALE.
By his Agent, Walter Brierley,
Town Hall Buildings, Halifax.