CERTAIN IM- PROVEMENTS IN MACHINES FOR SPINNING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1860

page_text: LETTERS PATENT to Joseph Harrison, of Glossop, in the County of
Derby, Overlooker of Spinners, for the Invention of "CERTAIN IM-
PROVEMENTS IN MACHINES FOR SPINNING COTTON AND OTHER FIBROUS
SUBSTANCES."
Sealed the 14th December 1860, and dated the 19th June 1860.
PROVISIONAL SPECIFICATION left by the said Joseph Harrison at the
Office of the Commissioners of Patents, with his Petition, on the 19th
June 1860.
I, JOSEPH HARRISON, of Glossop, in the County of Derby, Overlooker of
Spinners, do hereby declare the nature of the said Invention for "CERTAIN
IMPROVEMENTS IN MACHINES FOR SPINNING COTTON AND OTHER FIBROUS SUBSTANCES,"
to be as follows:-
My improvements are applicable to such self-acting mules and machines
of a similar nature in which friction cones (or in other words a friction
cone fitting into a conical recess or friction box in the side of a strap
pulley) are used in place of fast and loose pulleys to prevent the necessity of
passing the driving strap from the fast to the loose pulley, and vice versà, as
described in the Specification under Letters Patent granted to Richard
Roberts, of Manchester, Engineer, on the Fifteenth day of June, One thou-
sand eight hundred and forty-seven (No. 11,747) and consist, first, in causing
the friction cones to be put into and taken out of contact by means of springs

page_text: acting on levers in connection with a cam instead of the cams and lever
described in the said Specification; and secondly, in making the friction cone
used in the above arrangement (which is fastened to the shaft) "double" that
is in the form of two conical pieces united at the bases to allow of its being
used for backing off as well as for the strap pulley, by being alternately
brought into contact with one and the other of two separate recessed pulleys
or friction boxes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Harrison in the Great Seal Patent Office on the
15th December 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
HARRISON, of Glossop, in the County of Derby, Overlooker of Spinners, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent bearing date the Nineteenth day of June, One thousand eight
hundred and sixty, in the twenty-third year of Her reign, did, for Herself,
Her heirs and successors, give and grant unto me, the said Joseph Harrison,
my executors, administrators, and assigns, Her especial licence, that I, the
said Joseph Harrison, my executors, administrators, and assigns, or such
others as I, the said Joseph Harrison, ny executors, administrators, or
assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term of years 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 "CERTAIN IMPROVEMENTS IN MACHINES FOR SPINNING COTTON AND
OTHER FIBROUS SUBSTANCES," upon the condition, amongst others, that I, the said
Joseph Harrison, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, by an
instrument in writing under my hand and seal, 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 in compliance with the said condition, I, the said
Joseph Harrison, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the following statement and description, reference
being had to the accompanying Sheet of Drawings which are drawn to a

page_text: scale of three inches equal to one foot, and in which the same letters and figures
are used to indicate the same or corresponding parts in all the Figures in which
they occur.
My improvements are applicable to such self-acting mules and machines of
a similar nature in which friction cones (or in other words a friction cone
fitting into a conical recess or friction box in the side of a strap pulley) are
used in place of fast and loose pulleys to prevent the necessity of passing the
driving strap from the fast to the loose pulley and vicé versá, as described in the
Specification under Letters Patent granted to Richard Roberts, of Manchester,
Engineer, on the Fifteenth day of June, One thousand eight hundred and forty-
seven, and consists first, in causing the friction cones to be put into and taken
out of contact by means of springs acting on levers in connection with a cam
instead of the cams and lever described in the said Specification; and secondly,
in making the friction cone used in the above arrangement (which is fastened
to the shaft) "double" that is in the form of two conical pieces united at the
bases to allow of its being used for backing off as well as for the strap pulley
by being alternately brought into contact with one and the other of two
I shall describe my improvements
separate recessed pulleys or friction boxes.
as applied to the spinning mule known as "Parr, Curtis, & Madeleys," the
requisite alterations to adapt them to other spinning mules and machines
in which friction cones are used for the purpose before mentioned, will readily
appear to any mechanic conversant with such machines.
Figure 1 is an elevation, and Figure 2 a plan, of so much of a mule as is requisite
to exhibit my improvements, in which A is a double conical pulley keyed on
the rim shaft B, loose on which are the strap pulley C, and the backing off
wheel D, the interior of each of which is formed to act as a friction box with
the adjacent side of the conical pulley A. The pulleys A and C, and wheel D,
On the stud a is mounted the
are partially shewn in section in Figure 3.
three-armed lever E, in the lower arm of which is the stud 1. One end of the
spring F is also attached to the lever E and the other to the fixing d on the
frame side G. On the stud 4 is mounted the forked lever H. The clip I
passes into a groove in the boss of the strap pulley C, and is connected with
the lever H by two screws, the ends of which, passing through the lever, enter
into holes in the clip. The spring J is at one end attached to the lever H,
and at the other to the arm 3 of the lever E. The cam K is the one usually
employed to traverse the strap fork. The eccentric L is fast on the twist
shaft, and is used when it is intended to put twist in the yarn when the
carriage is out. Having referred to the various parts connected with my
improvements, I will now proceed to explain their application.

page_text: In the Drawings they are represented in the position they are in when the car-
riage is coming out during the operation of spinning, at which time the strap
pulley C is in contact with the conical pulley A, and motion is thereby com-
municated to the rim shaft. The pulley C is put in contact by the following
means, that is to say, when the carriage has finished its inward run the cam shaft
is partially turned and with it the cam K, which acts on the stud 1, and forces
it, and the arm of the lever E to which it is attached, with it in the direction of
the arrow, thereby causing the arm 2 of the same lever to be moved in the
contrary direction and taking it out of contact with the lever H. This allows
the spring J to draw the lever H in the direction of the arrow and causes it
to put the pulley C in contact with the conical pulley A. From the fore-
going it will be seen that the cam K through the stud 1 acts on the lever E,
and causes the arm 2 of that lever to be moved and allows the spring J to put
the pullies A and C in contact, which it will do with a much easier and less
rigid action than if they were put into contact by the cam acting on the lever
direct. The strength of the spring can be adjusted by the screw m in the
usual manner. When the carriage has completed its outward run the cam
K is again partially turned and its surface gradually recedes, allowing the
spring F to draw the arm of the lever E to which it is attached in the
contrary direction to that indicated by the arrow, and causes the arm 2 to
come in contact with the lever H and force it outwards, whereby the pullies
A and C are taken out of contact. If twist is intended to be put in the yarn
when the carriage is out, the spring F is prevented from drawing the arm of
the lever E by means of the stud n in the arm 3, resting against the eccentric L,
until by the revolution of the twist shaft the hollow part of the ecentric is
brought opposite the stud n, when the spring F will act on the lever E, its
motion no longer being restrained by the eccentric. The putting of the
backing off wheel into and out of contact with the opposite cone, being well
known and in general use, need not be described.
In witness whereof, I, the said Joseph Harrison, have hereunto set my
hand and seal, this Thirtieth day of October, in the year of our Lord
One thousand eight hundred and sixty.
JOSEPH HARRISON. (L.S.)