CERTAIN IMPROVEMENTS IN THE MACHINERY USED FOR SPINNING, DOUBLING, AND TWISTING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1837

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN CON-
SITT, of Manchester, in the County of Lancaster, Mechanist, send greeting.
WHEREAS His late most Excellent, Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Eighth day of March, in the seventh year of the late
reign, did, for Himself, His heirs, and successors, give and grant unto mé, thé
said John Consitt, His especial license, full power, sole privilege, and authority,
that I; the said John Consitt, my executors, administrators; and assigns, and such
others as I, the said Jolin Consitt, my executors, administrators, and assigns,
should at any time agree with, and no other, from time to time and at all times
during the term of years therein expressed, should and lawfully might make,
use, exercise, and vend, within England, Wales, and the Town of Berwick:
upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN THE MACHINERY USED
FOR SPINNING, DOUBLING, AND TWISTING COTTON AND OTHER FIBROUS SUBSTANCES;"
in which said Letters Patent is contained a proviso, that I, the said John
Consitt, shall cause a particular description of the nature of my said Invention,
and in what manner the same is to be performed, to be inrolled in His
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in and
by 'the same, reference being thereunto had, will more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Consitt, do hereby declare that the nature of the said Invention, and the

page_text: manner in which the same is to be performed, is particularly described and
ascertained in Drawings hereto annexed, and to the following explanation
thereof, that is to say:-
My improvements in the machinery used for spinning, doubling, and
twisting cotton and other fibrous substances, are designed principally to
facilitate the processes of preparing and spinning cotton, and at the same time
to effect an improvement in the yarn or thread produced, that is, to cause the
same to be more regular, even, and compact; and by keeping the fibres of the
cotton straight and level to work them more effectually into the body of
the thread or yarn, instead of leaving the fibres of the threads loose and
rough, as ordinary spinning machinery are liable to do.
The manner in which I propose to effect my improvements in spinning is
chiefly by altering the usual speeds at which certain parts of common spinning
machinery work, and by driving all the preparation machines (in which two or
more series of drawing rollers are used), by means of a much slacker strap
than is commonly employed, which alone will be found to effect a considerable
improvement in the yarn. Thus, in the drawing frame, the roving frame, the
jack frame, the stretching frame, and the throstle, I put a driving pulley of
a larger diameter than is commonly employed, in order to work all these
machines with a slacker strap.
The alterations I propose to make in the mule, particularly in the ordinary
hand mule for spinning fine numbers of yarns, are, to make the driving pulley
of larger diameter, in order to pursue the same system of using a slacker strap
than common, and also to make a greater difference between the single and
double speeds of the mule, so as to work the mule slower in the roving part,
or that portion of the spinning which is performed by the rollers and parts
connected therewith, and quicker in the "stretching and twisting" processes;
the difference .I propose is about 1 to 3 of the respective diameters of
the speed wheels which govern these parts of the mule. These alterations
will be found to make the rollers work much smoother, and keep the cotton
from being ruffled in the rollers, and cause it to hang better together, thus
keeping the fibres straight and even, so as to work them into the body of the
thread with greater facility.
A further alteration I propose to make in mules for spinning fine numbers
of cotton or other material, as in those cases where spur or bevil wheels are
used to give the " single and double speed," (consisting generally of four
wheels, two larger and two smaller.) I alter two of them, that is, one of the
pairs, in order to make a greater difference between the single and double
speed; but in constructing new mules I should have two pairs of fast and