IMPROVE- MENTS IN MACHINERY POR SPINNING
Year: 1862

page_text: PROVISIONAL SPECIFICATION left by George Henry Sanborn at the
Office of the Commissioners of Patents, with his Petition, on the 15th
May 1862. A communication, from abroad by Isaac Rich, of the City
of Boston, State of Massachusetts, United States of America.
I, GEORGE HENRY SANBORN, of No. 100, Fleet Street, in the City of London,
Gentleman, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY POR SPINNING."-A communication to me from abroad by
Isaac Rich, of the City of Boston, State of Massachusetts, United States of
America, to be as follows:-
The object of said improvements is to increase the rapidity with which
yarns have hitherto been twisted by machinery, to decrease the required
power, to arrange the different parts of the spinning machines in the least
possible space, and to easily regulate the number of twists in a given measure
of yarn, for the purpose of more perfectly adapting it to various purposes, and
for the manufacture of different fabrics.
The chief peculiarity of said Invention consists in the employment of two.
or more reels or "flyers" arranged in succession one within another, the inner
"flyer" or "flyers" being so geared as to revolve in the same or opposite
directions to the outside one, and at the same or different rates of speed from
the said outside "flyer" as may be desired for the purpose of obtaining
different degrees of twist in the yarn. By which arrangement the spinning
and twisting of a much larger amount of yarn is accomplished by the same
number of revolutions of the driving shaft.

page_text: By the use of only two "flyers" revolved at equal speed in opposite directions,
the amount of twist is increased threefold, one twist being given by the revo-
lution of the outer "flyer" between the first set of drawing rollers and the
said outer flyer, and two twists between the first extra set of drawing rollers
and the inner "flyer," and any proportionate higher rate of speed of the
inner "flyer "gives an increased amount of twist to the yarn.
By the use of a third "flyer," arranged within the second, a much greater
variety of twists may be obtained.
In ordinary spinning machines the twist is regulated by varying the speed
of the delivery rollers, which varies the length of roving between the delivery
rollers and the neck of the "flyer." By the above arrangement and operation
of the "flyers," not only a treble or quadruple twist, but any intermediate
degree is obtained.
By combining additional drawing rollers with the inner "flyers," this
improved spinning machine is adapted to economically perform the work of a
"jack" or mule spinner,. as it will then spin and twist the yarn at the same
time, and the operation is performed without the use of a traversing carriage.
In woollen manufacture the yarn may be passed to this machine directly
from the carding machine; and in the manufacture of cotton fabrics it will
not be found necessary to employ a drawing frame. The increased degree of
twist given by keeping stationary for a time the traversing carriage of the
"spinning jack" is accomplished by the inner "flyer" after the extra set of
drawing rollers have operated sufficiently, and without suspending the progress
of the yarn.