IMPROVEMENTS IN SECTIONAL WARPING AND BEAMING MACHINES
Year: 1881

page_text: LETTERS PATENT to John Christmas Sewell, Eustace Hulton, and Jolin Bethel,
all of the City of Manchester, in the County of Lancaster, for an Invention
of "IMPROVEMENTS IN SECTIONAL WARPING AND BEAMING MACHINES."
PROVISIONAL SPECIFICATION left by the said John Christmas Sewell,
Eustace Hulton, and John Bethel at the Office of the Commissioners of Patents
on the 13th December 1881.
JOHN CHRISTMAS SEWELL, EUSTACE HULTON, and JOHN BETHEL, all of the
City of Manchester, in the County of Lancaster. "IMPROVEMENTS IN SECTIONAL
WARPING AND BEAMING MACHINES."
The object of our Invention is to secure a uniform rate of speed for the yarn
while it is being wound upon the section.
For this purpose we mount a face plate upon one end of the driving shaft, and
parallel thereto we employ a shaft in which is fixed a fast key or feather. This
shaft rotates in two bearings, one of which is moveable round an axis perpendicular
to the axis of the shaft, while the other is capable of being moved nearer to or
further from the face plate. At the end of the shaft near to the swivel bearing is
keyed a driving pulley, and on that portion of the shaft between the two bearings
a friction pulley is mounted. The friction pulley has a keyway cut through its
eye to fit the feather in the shaft so that the pulley may partake of the motion of
the shaft in whatever portion of its length it may occupy; it has also a groovo
formed upon its boss which is engaged by a forked lever or its equivalent. The
length of this lever is precisely the same as that of the presser shaft from the front
of the presser to the fulcrum or presser shaft, and it is fixed upon the presser shaft
immediately under the shaft carrying the friction pulley.
The friction pulley being brought into contact with the face plate drives the
latter, and through it rotates the section and winds on the yarn. The speed at
which the yarn is wound on depends upon the position of the friction pulley
relatively to the centre of the face plate, thus when the friction pulley is near the
centre that speed will be slow, and when near the circumference will be fast.
As the action of the presser moves the friction pulley toward the centre of the face
plate at precisely the rate of which the presser is removed from the centre of the
section, it follows that the rate at which the yarn is wound upon the section will
be absolutely uniform throughout notwithstanding the gradually increasing
diameter of the section.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Christmas Sewell, Eustace Hulton, and John Bethel in the
Great Seal Patent Office on the 12th April 1882.
JOHN CHRISTMAS SEWELL, EUSTACE HULTON, and JOHN BETHELL, all of the
City of Manchester. "IMPROVEMENTS IN SECTIONAL WARPING AND BEAMING
MACHINES."
The object of our Invention is to secure a uniform rate of speed for the yarn
while it is being wound upon the section.
For this purpose we mount a face plate upon one end of the driving shaft, and
parallel thereto we employ a shaft in which is fixed a fast key or feather. This
shaft rotates in two bearings, one of which is moveable round an axis perpendicular
to the axis of the shaft, while the other is capable of being moved nearer to or
further from the face plate. At the end of the shaft near to the swivel bearing is
keyed a driving pulley, and on that portion of the shaft between the two bearings
a friction pulley is mounted. The friction pulley-has-a-key-way-cut-through-its
eye to fit the feather in the shaft, so that the pulley may partake of the motion of
the shaft in whatever portion of its length it may occupy. It has also a groove
formed upon its boss which is engaged by a forked lever or its equivalent. The
length of this lever is precisely the same as the length of the presser arm or lever
measured from the point where the presser is in contact with the section to the
fulcrum or centre of presser shaft, and it is fixed upon the presser shaft immediately
under the shaft carrying the friction pulley, or in such a position as may be found
convenient. If the forked lover is placed elsewhere upon the presser shaft
than immediately under the friction pulley shaft it may be curved or bent so as to
cause the fork to engage with the grooved boss of the friction pulley, but in any
case the effective length of the forked lever must equal the effective length of the
presser lever.
And in order that this Invention may be more readily understood, we have
hereunto annexed a Sheet of Drawings illustrative of the Invention, and will now
proceed to describe the same, reference being had to such Drawings and the letters
of reference marked thereon.
Fig. 1 is a front view of the apparatus; Fig. 2 is an end view shewing also the
section and pressure lever; Fig. 3 is a plan of Fig. 2; and Fig. 4 is a plan of the
apparatus on an enlarged scale.
In all the views similar letters of reference are used to denote similar parts.
In order to secure a uniform rate of travel for the yarn while it is being wound
upon the section K, it is necessary because of the gradually increasing diameter of
the section to gradually decrease its speed of rotation; to effect this object a
driving shaft a' is employed, upon one end of which is fixed the face plate A, and
the motion of this shaft is transmitted to the section shaft by means of a belt or
gearing, so that the relative speeds of the two shafts shall be invariably constant.
The shaft A receives its motion through the face plate A, and the friction
pulley F from the pulley E, the speed of the shaft A' and therefore of the section
is governed by the position of the friction pulley F relatively to the face plate;
thus if the friction pulley is near the circumference of the face plate the speed of
the section will be slow, while on the other hand if the friction pulley is near the
centre of the face plate the speed of the section is high; if then the friction pulley
is near the centre of the face plate at the commencement of the operation of
winding a section, and is gradually moved towards the circumference as the
operation proceeds, it is obvious that a uniform travel of the yarn or rate of
winding may be maintained; this is effected by keeping or otherwise fixing on the

page_text: presser shaft J a forked lever G, which shall at its forked end engage with a
groove on the boss of the friction pulley, so that the friction pulley shall approach
the circumference of the face plate at the same rate as the presser I is removed by
the increasing diameter of the section from the centre of the section shaft. To
assure uniform speed, the distance between the axis of the shaft B upon which the
friction pulley is mounted and the produced axis of the presser shaft should equal
the distance between the centre of presser shaft and the point of contact of the
presser I with the section. To allow of a sliding motion of the friction pulley
upon the shaft B, a key or feather B' is secured to or bedded in the shaft, a corre-
sponding slot being cut through the eye of the pulley, or any other means may be
adopted which will allow the sliding motion to be imparted while the rotary
motion is maintained. To put the friction pulley into contact with the face plato
or to remove it therefrom, a cam D or other well known equivalent contrivance is
adopted as in some back geared lathes. The bearing C of the shaft B at the
further end from the cam D may be a swivel bearing, so as to freely permit
the consequent motion of the shaft when the friction pulley is put into or out
of gear.
When owing to the construction of the apparatus it is inconvenient to engage
the lever G directly with the friction pulley, a combination of levers and connecting
links from an arm or lever on the presser shaft may be employed to move tho
friction pulley; also the face plate and friction pulley may change places, in which
case the face plate would drive instead of being driven, and its position would be
regulated by means of a bell crank or other system of levers equivalent to the
lever G.
Having thus described the nature of our said Invention, and the manner in
which the same may be performed, we desire it to be understood that we do not
limit ourselves to the precise details shown and described, as the same may be
varied without departing from the nature of our Invention, but we claim for
the purpose of obtaining a uniform rate of speed for the yarn the use of a
face plate and friction pulley, the position of which relatively to cach other is
positively regulated by the position of the presser relatively to the section shaft,
substantially as herein set forth and described, and indicated on the accompanying
Sheet of Drawings.
In witness whereof, I, the said John Christmas Sewell, on my own behalf,
and on behalf of the said Eustace Hulton and John Bethell, have hereunto
set my hand and seal, this Eleventh day of April, in the year of our Lord
One thousand eight hundred and eighty two.
JNO. CHRISTMAS SEWELL. (L.S.)