IMPROVEMENTS IN APPARATUS FOR PREPARING, CLEANING, AND CARDING COTTON AND OTHER FIBROUS MATERIALS, AND FOR GRINDING CARD FLATS
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by Benjamin Alfred Dobson, William
Dobson, and James Newhouse at the Office of the Commissioners of Patents
on the 12th October 1878.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker, aud WILLIAM DOBSON and
JAMES NEWHOUSE, both of the same Place, Engineers. "IMPROVEMENTS IN
APPARATUS FOR PREPARING, CLEANING, AND CARDING COTTON AND OTHER
FIBROUS MATERIALS, AND FOR GRINDING CARD FLATS."
Our Invention consists in applying water or other liquid in the form of spray to
cotton or other fibres as they leave the opener or other machine for cleaning and
preparing cotton and other fibres, whereby the fibres are brought into the best
condition for undergoing the subsequent operations of scutching, carding, or
otherwise preparing and spinning. The action of the spray reduces the waste and
strengthens the yarn. The apparatus for effecting this object consists of a perforated
tube placed near the fleece or sliver of fibres issuing from or entering the machine.
Water or other liquid under pressure is forced by a pump or otherwise into this
tube, and is projected in the form of spray against the fibres.
Our Invention consists also in an improved mode of constructing the serrated wire
cards used for covering the lickers-in of carding engines and other rollers used in
Dachines for opening, cleaning, scutching, and carding cotton and other fibres; 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 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 notion 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
ends 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.