AN IMPROVED APPARATUS FOR PRESSING OR LEVELLING YARN ON BEAMS FOR WEAVING PURPOSES
Year: 1880

page_text: LETTERS PATENT to Alfred Hitchon, of Barrowford, near Burnley, in the
County of Lancaster, Mechanic, for an Invention of "AN IMPROVED
APPARATUS FOR PRESSING OR LEVELLING YARN ON BEAMS FOR WEAVING
PURPOSES."
PROVISIONAL SPECIFICATION left by the said Alfred Hitchon at the Office
of the Commissioners of Patents on the 29th June 1880.
ALFRED HITCHON, of Barrowford, near Burnley, in the County of Lancaster,
Mechanic. "AN IMPROVED APPARATUS FOR PRESSING OR LEVELLING YARN ON
BEAMS FOR WEAVING PURPOSES."
The usual method of pressing or levelling yarn wound upon beams for weaving
purposes is by the application of a roller placed upon anti-friction bowls, and
weighted so as to bear against the yarn as the beam increases in diameter; by this
arrangement, if the flanges be secured to the beam at a width in excess of that of
the roller, which very often occurs, the said roller cannot possibly press or level
more than its own width, consequently the sides of the warp not under pressure
will assume an increased diameter to that of the other portion of the warp, which
not only causes an undue strain to be placed upon the sides of the warp, while
being wound upon the beam, but also occasions slack sides while being woven.
To
remedy these defects I impart to the aforesaid roller an alternate side or lateral
movement, which may be effected by slightly moving one or both of its bearings
alternately, by means of an eccentric pin or other equivalent actuated from any
convenient part of the machine, so that the said roller will assume an oblique
position to the beam, and by its revolving action will be moved in the direction of
one of the flanges, until the said roller is moved obliquely in a reverse position,
which will cause the roller to travel in an opposite direction towards the other
flange, thus an alternate end movement is imparted to the said roller, whereby the--
whole-surface of the warp on the beam will be evenly pressed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
'
the said Alfred Hitchon in the Great Seal Patent Offico on the 29th
December 1880.
ALFRED HITCHON, of Barrowford, near Burnley, in the County of Lancaster,
Mechanic. "AN IMPROVED APPARATUS FOR PRESSING OR LEVELLING YARN ON
BEAMS FOR WEAVING PURPOSES."
My Invention relates to an improved apparatus, in which an alternate end or
lateral movement is imparted to the presser roller, for pressing or levelling yarn
wound on beams for weaving purposes. In order that my Invention may be fully
understood and readily carried into operation, I will proceed to describe the
accompanying Sheets of Drawings, reference being had to the figures and letters
marked thereon. Fig. 1 is a side elevation of part of a tape machine with my
improved apparatus applied thereto. A is the sido framing; a¹, the yarn beam;
B, the presser roller which revolves on the anti friction bowls C and C', the ends of
which rest in suitable slots or bearings formed in the radial arms D. These radiate
on a shaft d' extending across the end of the machine, a weight secured thereon
imparts the requisite amount of pressure to the yarn wound on the beam.a¹, the
ends of the said shaft are usually supported in stationary bearings. The parts
enumerated form the apparatus now used in pressing or levelling the yarn wound
on the beam. It will be obvious that when flanges are secured on the yarn beam a¹
at a width in excess of the presser roller B, the latter cannot press or level inore
than its own width, consequently the sides not under pressuro will assume an
increased diameter to that portion of the warp pressed, whereby an undue strain is
placed on the sides of the warp, resulting in slack sides when woven off the beam.
My improvements in the said apparatus consist essentially in the employment of a
presser roller, to which an alternate end or lateral movement is imparted. For
this purpose I support one end of the cross shaft carrying the radial arms D in a
bearing, shewn at in the vibrating lever E, and is actuated from the ordinary
sido shaft through the medium of the speed pulleys fl and fƒ³, cord g, and tho
worin H, and worm wheel h¹. To the face of the latter is secured the eccentric
pin Upon the machine being set in motion, the eccentric pin of the worm
wheel will, through the intervention of the rod ³, cause the lever E to vibrate
upon its centro a³, whereby the radial arms D which support the presser roller, are
also moved by the gradual vibratory movement of the lever E. By these means
one end of the presser roller will be moved obliquely each way out of its parallel
position with the yarn beam, against which it is in frictional contact. The
revolving movement of the yarn beam will cause the presser roller not only to
revolve, but also to traverse alternately from one flange to the other when moved
obliquely in reverse position.
A modification of my improved apparatus is represented in Figures 2 and 3,
whereby an alternate end or lateral movement is imparted to the presser roller.
The presser roller B is mounted on the rims c and c' of the tubular rollers c² and c³,
these revolve on the stationary spindles K and K¹, the ends of which are supported.
by suitable bearings formed in the radial arms D hereinbefore mentioned. The
roller is provided with the worm H, seen in Fig. 4, the ends of which are
embraced by the bracket I, detached views, Figures 5 and 6, and fixed thereto is the
stud carrying the worm wheel H', to which is secured the crank pin J, seen in
Fig. 3, acting in the slot of the bent arm J¹. The presser roller B being acted upon
by the ordinary weighted medium will be pressed against the yarn wound upon
the beam, the revolving movement of which is transmitted through the presser
roller B to the tubular roller c³, and worm H in gear with tho worm wheel h¹, the
crank pin J acting in the slot of the bent arm J', which is firmly fixed near one end

page_text: of the stationary spindle K, will effect an alternate sliding movement to the
roller c. The bracket H is provided with the slotted cap to receive the tongue 13
(shewn in dotted lines, Fig. 2), of the bearing piece, in which revolves the
roller. By these means both the said rollers are yoked, and receive a like
sliding movement. The presser roller B mounted on the rims c and c², will thus
receive an alternate end or lateral movement, whereby the warp will be evenly
pressed and levelled.
Another modification of my improved apparatus is represented in plan view,
Fig. 8. In this arrangement the presser roller B as usual is placed upon the anti
friction bowls C and C' of the radial arms D, secured to the cross shaft d, the said
roller being kept in contact with the yarn boam by its ordinary weighted medium.
The presser roller B is formed with a circumferential groove or rocess which is
embraced by the clip K secured to the bracket E, which is capable of sliding to and
fro on the bar el fixed to the radial arms D. To the said bracket is secured
suitable studs, on which are placed the pulleys M, m³, and m². A cord or band n
intersects the pulleys in the manner seen in Fig. 8. To one end of the said cord
or band is attached a weight, its other end is passed round the guide pulley m³ to
an eccentric pin, which may be actuated in a similar manner as the one shewn in
Fig. 1. By this means the cord or band will be moved to and fro to the extent of
the stroke of the eccentric pin. The spring piece n' bearing against the face of the
pulloy m will impart the requisite amount of resistance or drag to the cord or band
passing over the pulley m, so as to slide laterally from side to side the bracket E
and presser roller B.
Having now described the nature of my said Invention, together with the
method of carrying the same into practical effect, I would wish it to be understood
in conclusion that the various arrangements of mechanism shewn and described in
respect of my Invention are merely examples or modifications I have found best
for carrying out the intention of my Invention; but I wish it to be particularly
understood that the spirit and claim of my Invention is the application of a
traversing presser roller, for purposes described and herein set forth.
In witness whereof, I, the said Alfred Hitchon, have hereunto set my hand
and seal, this Twenty seventh day of December, in the year of our Lord
One thousand eight hundred and eighty.