IMPROVEMENTS IN CAI DING PO GIRLS
Year: 1862

page_text: LETTERS PATENT to John Platt, of Oldham, in the County of Lancaster,
Mechanical Engineer, William Richardson, of the same Place, Mechanical
Engineer, and William Holland, of Salford, in the said County, Cotton
Spinner, for the invention of
IMPROVEMENTS IN CAI
DING PO GIRLS.
PROVISIONAL SPECIFICATION left by the said John Platt, William
Richardson, and William Holland, at the Office of the Commissioners
of Patents, with their Petition, on the 10th April 1862.
WE, JOHN PLATT, of Oldham, in the County of Lancaster, Mechanical
Engineer, WILLIAM RICHARDSON, of the same Place, Mechanical Engineer,
and WILLIAM HOLLAND, of Salford, in the said County, Cotton Spinner, do
hereby declare the nature of the said Invention for "IMPROVEMENTS, IN
CARDING ENGINES," to be as follows:-
Our Invention consists in causing the revolution of the doffer to be
dependent upon the tension of the sliver, or the revolution of the feed. rollers
to be in like manner dependent. With this view. we cause the said sliver to
pass over a trigger, which keeps a projecting part without range of a vibrating
lever; but should the sliver break, then the said lever arrives in contact there-
with, and causes the driving medium of the doffer to be disconnected; to
facilitate this we propose to use friction surfaces, for driving the doffer
instead of toothed wheels, and we adapt a treadle for again connecting the
driving medium.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Platt, William Richardson, and William Holland, in
the Great Seal Patent Office on the 9th October 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
PLATT, of Oldham, in the County of Lancaster, Mechanical Engineer,
WILLIAM RICHARDSON, of the same Place, Mechanical Engineer, and WILLIAM
HOLLAND, of Salford, in the said County, Cotton. Spinner, send greeting.
WHEREAS Her, most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of April, in the year of our Lord One
thousand eight hundred and sixty-two, in the twenty-fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
John Platt, William Richardson, and William Holland, Her special license
that we, the said John Platt,. William Richardson, and. William Holland, our
executors, administrators, and assigns, or such others as we, the said John
Platt, William Richardson, and William Holland, our executors, adminis-
trators, 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
Kingdom of Great Britain-and -Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVEMENTS IN CARDING ENGINES,"
upon the condition
(amongst others) that we, the said John Platt, William Richardson, and
William Holland, by an instrument in writing under our hands and seals,
or under the hand and seal of one of us, 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 William Richardson, Holland, do
hereby declare the nature of our 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):
=
..
In the accompanying Drawings, Fig. 1 represents a portion of a carding
engine, with our improvements adapted. Fig. 2 is a plan view, and Fig. 3
another plan of certain of the parts. The ordinary draw box is shewn at 1,
from which the sliver 2, instead of being conducted at once to the coiler or
other receptacle, passes over a finger 3, formed upon one
mounted so as to be capable of turning upon a centre at 5.
end of a. lever
This lever is so

page_text: mounted that its tendency is to turn upon the centre 5, in the direction of the
arrow; nevertheless, it is maintained in the position shewn in the Drawing,
during the proper working of the machine, by the 'tension of the sliver 2.
Beneath the finger 3 is situate a lever 7, capable of turning upon a centre at
8, and caused to bear in the direction of the arrow by a weighted arm' 9, so
that it is continually pressed thereby against a cam 10, mounted upon the
ordinary shaft 11, which drives the rollers of the usual draw box. As this
cam therefore revolves, it imparts a reciprocating motion to the lever 7 in such
manner that its upper end passes to and fro beneath a step 12 formed on the
finger 3. The centre of motion 8 of the lever 7, is carried by a rod 13, which:
is drawn by a spring 14 in the direction of the arrow, and the other end of the
rod 13 is connected to a lever 15, turning upon a centre at 16, on the opposite:
side of which centre it is mounted upon the boss of the usual carrier wheel 17,
which transmits motion to the doffer. Upon the face of this carrier is
a conical surface 18, taking into a conical recess 19, formed in the wheel 20,
through which motion is communicated from the cylinder. It will be there-
fore seen, that instead of the doffer being driven by gearing, direct motion is
transmitted thereto through the medium of the cone 18, and that such motion:
will. cease if the said cone be removed from. the wheel 20. It will also be
perceived that the spring 14, by acting upon the rod 13 and lever 15, retains.
these parts in connexion. The operation is as follows:-During the proper
working of the machine the lever 7 will by means of the cam 10 be caused,
to vibrate beneath the step 12, but clear thereof, the: tension of the sliver 2.
keeping the finger 3 upward; but should the sliver become broken, or other-
wise diminished in tension, then the step 12 will fall downward, and, a
projection on the upper end of the lever 7 will arrive in contact there-
with.. Under these circumstances the lever 7 cannot be forced forward by:
the cam 10 in the manner before-mentioned, but the step 12 will form
a fulerum for the said cam to act against, and the spring 14 being also forced.
will give way, and thus the lever. 7 will turn upon a centre at the top thereof
instead of at the bottom, and the rod 13 will be slidden forward. By these
means the lever 15 will be turned upon its centre 16, and by so doing will
cause the wheel 17 to slide, and remove the cone 18 from the wheel 20, and
thus the motion of the doffer will be arrested. In order to bring the
machinery into gear again, we adopt the following arrangement:-At the side
of the lever 7 is a rod 21, connected thereto at top by means of a nut 26, the
bolt of which nut however is situate within a slot, so as to allow the said rod
21 to move upward or downward independently of the lever 7. The lower
end of the rod 21 has also a slot which embraces the centre pin 8,-so that the

page_text: lever and rod move together in the vibratory motion caused by the cam 10;
but the latter is capable of a separate vertical motion. Beneath the rod 21
is a lever 22, connected by a cord or chain to another lever: 23, turning upon
a centre at 24, and connected to a treadle 25. Suppose the working of the
machine to have been arrested as above described, the lever 7 and step 12
will be in the position shewn by dots in Fig. 1, and the spring 14 will be
distended by the cam 10 having forced the rod 13 forward. To commence.
working again, the attendant places his foot. upon the treade 25, so as
to cause the levers 23, 22, to turn upon their centres, by which means the
rod 21 will be elevated, and will be projected against the finger 3 so as to
cause it to turn upward. This movement will liberate the lever 7, and the
spring 14 will immediately draw back the rod 13, thus causing the lever 15
to turn upon its centre, and place the friction cone 18 into gear. At 6.is an
arm extending from the finger 3, for the purpose of determining the extent of
its motion.
Having thus described and ascertained the nature of our said Invention, and
the manner of carrying the same into effect, we desire it to be understood that,
although we have shewn certain mechanism by which our Invention may be
carried into practical operation, yet we do not confine ourselves thereto, as
other arrangements may be adopted upon the same principle, and it will be
evident that alterations to a great extent must be made to suit modifications
of the ordinary parts of the carding engine. That which we claim as secured
to us under the above in part recited Letters Patent being,―
- Firstly, causing the revolution of the doffer or the feed rollers to be
dependent upon the tension of the sliver.
Secondly, the use of the conical or other friction surfaces, as illustrated at
18, 19.
And, thirdly, the use of the treadle 25, and parts connected therewith, for
the purposes above set forth.
In witness whereof, I, the said William Richardson, have hereunto set
my hand and seal, this Eighth day of October, in the year of our
Lord One thousand eight hundred and sixty-two.
WILLIAM RICHARDSON. (L.S.)