IMPROVE- MENTS IN APPARATUS FOR PREPARING, CLEANING, AND CARDING COTTON AND OTHER FIBROUS MATERIALS, AND FOR GRINDING CARD FLATS."
Year: 1879

page_text: LETTERS PATENT to Thomas Henry Rushton, of the Firm of Messieurs Dobson
and Barlow, of Bolton, in the County of Lancaster, Machine Maker, and
William Dobson, of the same Place, Engineer, for the Invention of "IMPROVE-
MENTS IN APPARATUS FOR PREPARING, CLEANING, AND CARDING COTTON AND
OTHER FIBROUS MATERIALS, AND FOR GRINDING CARD FLATS."
PROVISIONAL SPECIFICATION left by the said Thomas Henry Rushton and
William Dobson at the Office of the Commissioners of Patents on the 24th
February 1879.
THOMAS HENRY RUSHTON, of the Firm of Messieurs Dobson and Barlow, of Bolton,
in the County of Lancaster, Machine Maker, and WILLIAM DOBSON, of the same
Place, Engineer. "IMPROVEMENTS IN APPARATUS FOR PREPARING, CLEANING, AND
CARDING COTTON AND OTHER FIBROUS MATERIALS, AND FOR GRINDING CARD
FLATS."
Our Invention consists in an improved mode of constructing the serrated wire
cards used for covering the lickers in of carding engines and other rollers used in
machines for preparing, opening, cleaning, scutching, and carding cotton and other
fibres. This improved serrated wire card is made of thin strips of flat metal ser-
rated at each edge and then the edges are turned up by rolls or otherwise. The flat
space between the turned up edges bears on the circumference of the roller or
cylinder and when wound on the card wire is secured by tacks or other
equivalents.
Our improved apparatus for grinding card flats is applicable to self acting card
strippers. Four wheels are arranged in two pairs so that they give to the cam
wheel a quick motion when the flat is raised and a slow motion when the flat is
down. When grinding, by turning a screw to release a clutch apparatus between
two of the wheels above referred to, the quick motion is continued all round the
cam wheel, thus moving from one flat to the next in a few seconds. In the boss of
the stripping lever is an eccentric which carries a shaft with a small pulley on each

page_text: end, one pulley drives the grinding roller and the other is driven from a friction
pulley on the cylinder shaft and put in contact by a handle connected to the
eccentric which carries the small pulleys. The stripping board is taken out and a
grinding roller dropped into two bearings at the top of the stripping lever; at the
end of the flats, iron ends are fitted having a surface which is cut off and parallel to.
the flat face; at the top of the stripping levers steel regulating pieces are fastened
which come in contact with the cut surface at the end of the flat; the stripping lever
passes under the flats giving a parallel motion for the grinding roller as the flat is
held against the steel regulating pieces by springs and its own weight. All the
above details may require to be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Henry Rushton and William Dobson in the Great Seal Patent
Office on the 22nd August 1879.
THOMAS HENRY RUSHTON, of the Firm of Messieurs Dobson and Barlow, of Bolton,
in the County of Lancaster, Machine" Maker, and WILLIAM DOBSON, of the same
Place, Engineer. "IMPROVEMENTS IN APPARATUS FOR PREPARING, CLEANING, AND
CARDING COTTON AND OTHER FIBROUS MATERIALS, AND FOR GRINDING CARD
FLATS."
Our Invention consists, first, in an improved mode of constructing the serrated
wire cards used for covering the lickers in of carding engines and other rollers used
in machines for preparing, opening, cleaning, scutching, and carding cotton and other
fibres, and
Secondly. In an improved apparatus for grinding card flats of self acting card
strippers.
And in order that our Invention may be fully understood and readily carried into
operation we will proceed to describe the accompanying Sheet of Drawings. Fig. 1
is a side view, Fig. 2 a plan, and Fig. 3 an end view of our improved serrated card
wire. This improved serrated wire card is made of thin strips of flat metal serrated
at each edge, and then the edges are turned up by rolls or otherwise; the flat space
between the turned up edges bears on the circumference of the roller or cylinder,
and when wound on the distance between the wires is about equal to the distance
between the turned up edges, as shewn in Fig. 3. The serrated wire is secured to
the roller or cylinder by tacks or other equivalents.
Fig. 4 is an edge view and Fig. 5 a front view of our improved apparatus for
grinding card flats; a is the axle of the main cylinder of the carding engine to
which our improvements are applied; b, the radial arm supporting the usual
mechanism for raising and lowering the top flats; c is the stripping lever; d, the
claws for holding the end of the top flat while it is being stripped or ground; e is
the cam wheel, which is driven as usual from the cross shaft f; these parts are all
made in the ordinary manner. To the axle a is fixed the internal friction pulley
which drives the pulley m fixed to a short shaft revolving in the eccentric boss of
the handle lever n. At the other end of this short shaft is fixed the grooved
pulley m² which by a band drives the pulley o¹ fixed to the axle of the grinding
roller o which revolves in bearings in the stripping levers c. To the cross shaft fis
fixed the catch wheel f', but the pinion f² is loose on the cross shaft and thrown
into gear by the spring i'. On the top of the stripping lever c is fixed a steel
segment c for regulating the distance between the roller o and the flat wire.
When the handle lever is moved to one side the friction wheel m is brought
into contact with the wheel which gives motion to the grinding roller o by the
band passing around the grooved pulleys m' and o¹. The thumb screw 2 is then
slackened, which allows the loose wheel f2 to be thrown into gear by the spring ¹
which keeps the stripper on the quick speed till the grinding is finished, The fints
are raised in the usual manner and dropped on the steel segments c' (there is a
segment at each end of the grinding roller), which segments sustain the flat till the
grinding roller has passed under it, thus grinding the wire parallel. If it is
desired to grind the wire to any particular curve the ends of the flats are formed
to the curve desired.
Fig. 6 is an enlarged view shewing the end of a flat in position for being
operated upon by the grinding roller, and a steel segment concentric with the
grinding roller.
Having thus stated the nature of our Invention and described the manner of
carrying the same into operation, we declare that we claim,―
First. The improved card wire, as shewn and described.

page_text: Secondly. The improved combination of parts for giving motion to the grinding
roller, as shewn and described; and
-
Thirdly. The steel segment for sustaining the flats and for regulating the distance
between the grinding roller and the flat wire, and grinding the wire on the flats
parallel or to any required angle or curve.
In witness whereof, we, the said Thomas Henry Rushton and William Dobson,
have hereunto set our hands and seals, this Twentieth day of August, One
thousand eight hundred and seventy nine.
Witness to the signatures of
Thomas Henry Rushton
and William Dobson,
JNO. L. ALDRED,
Clerk,
No. 95, Bury New Road,
Bolton.
THOMAS HENRY RUSHTON. (L.S.)
WILLIAM DOBSON.
(L.S.)