IMPROVE- MENTS IN MACHINERY OR APPARATUS FOR WARPING OR 'BEAMING' YARNS OR THREADS
Year: 1867

page_text: PROVISIONAL SPECIFICATION left by Thomas Watson at the Office
of the Commissioners of Patents, with his Petition, on the 29th April
1867.
I, THOMAS WATSON, of Scatcliffe, near Accrington, in the County of
Lancaster, do hereby declare the nature of my said Invention for "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR WARPING OR 'BEAMING' YARNS OR
THREADS," to be as follows:-
My Invention relates more particularly to that portion of mechanism
employed in warping and beaming yarns called the "self-acting stopping
motion," and is designed for the purpose of enabling such mechanism to be
more accurate and positive in its action, and also for preventing the accumu-
lation of "dobb" or "fly" settling upon and preventing the free action of the
pins or fallers.
The improvement consists, first, in a peculiar arrangement and con-
struction of faller pin which is formed with an eye and two leys, thus
fi
through the eyes of these pins the warp threads pass in their course from the
bobbins to the warp beam, thereby keeping them so long as the treads are
continuous or unbroken in an elevated position. These pins are kept in their
respective positions side by side, and also to move when falling in a vertical
direction by means of fixed adjustable guide bars, the legs of the said, pins

page_text: being arranged so as to embrace when up or down the said guide bars which
may be arranged single or double, that is, a second bar similar to the first
may be secured in a parallel line side by side with the bar over which the pins
are placed, leaving between their inner surfaces a groove or channel in which
the longer legs of the faller pins can easily rise or fall, the said second back
plate or bar being employed for the purpose of steadying and forming a resist-
ance for the pins when acted upon by the ordinary rocking or vibratory bar;
these pins when in their elevated position are raised clear of the bottom of the
bars, allowing thereby the free oscillation of the ordinary rocking stop bar,
but should one or more of the threads break the pins hitherto suspended by
the yarn when unbroken are caused to drop and protrude underneath the
bars upon which they rest, thereby forming a stop against which the rocking
bar is brought into contact, which arrests its further movement and stops the
machine in the ordinary manner.
A second portion of my Invention consists in the peculiar arrangement of a
yielding or moveable plate or platform over which the yarn is caused to pass ;
this plate is provided with two or more longitudinal slots through which the
pin eyes in their elevated position when suspended by the continuous. threads
are caused to protrude, the said platform or plate forming a cover or sheild
which prevents "dobbs," fly," or other accumulation of particles settling
upon the grooves in the box or guide bars embraced by the faller pins, thus
keeping the sensative and delicate portion of the stopping apparatus clear and
in good working condition; this top plate or shield is provided with bars or
rods extending downwards, which pass through guides or holes formed in the
cross rail of the machine; to the lower end of these rods one end of a lever is
secured, the opposite end being provided with a weight which acts as a coun-
terpoise to the table or platform over which the threads pass, the sliding rods
having collars or stops underneath the guides or holes in the cross rail
prevent the weight raising the platform too high. The object of having the
table over which the threads or yarns pass yielding or moveable, as before
stated, is for the purpose of enabling the operative (when one or more of the
threads break and their respective pins have fallen below the surface of the
table) to depress the table so as to regain the pins in order that the broken
ends of yarn may be again passed through the eyes of the same and pieced
up, after which the table is released and becomes raised to its normal position
by means of the counterbalance weight before mentioned and the stop or collar
secured to the sliding guide rods.
And, lastly, my Invention relates to an arrangeincent of "break" for
effecting a quick stoppage to the machine when any one or more of the

page_text: threads break, and consists in securing upon one end of the driving shaft a
ratchet wheel, which when the stopping motion comes into action is caught
by a catch secured to a strong spring, the said spring also having attached to
it one end of a strap, the opposite end of which after passing over a collar on
the driving shaft is secured to the frame; thus when the stopping motion is
brought into action a sliding inclined bar is caused to force the spring catch
into contact with the teeth of the ratchet, which with the momentum of the
machine is forced down so as to compress the spring and at the same time
tighten the strap passing over the driving shaft, thereby offering a strong
resistance against the further action of the machine. But in order to release
the catch when the machine is stopped from the ratchet the "beam" is
reversed and the spring and handle actuating the strap fork is brought slightly
forward, the action of which brings the driving strap into close proximity with
the fast pulley, in which position it is retained by a catch on a lever that is
acted upon by the swell or projection of a flat spring; during the time the
lever is retained in this position the broken ends of yarn are pieced up and
the machine readily prepared for a fresh start, which is then effected by com-
pleting the throw of the spring and handle which depresses the swell of the
afore-mentioned flat spring, and passes the handle into the notch or recess,
where it is retained during the continuous run of. unbroken threads.