Improvements in Twister Ring Travellers for Ring Twisting Machines.
Year: 1897

page_text: Date of Application, 13th July, 1897-Accepted, 14th Aug., 1897
COMPLETE SPECIFICATION.
Improvements in Twister Ring Travellers for Ring Twisting
Machines.
We, JOHN BOOTH and CHARLES DENNY WOOD, both of Central Falls, in the
County of Providence and State of Rhode Island, United States of America, Manu-
facturers, do hereby declare the nature of our invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:-
This invention relates to ring twisting machines employed for twisting together
a plurality of threads or strands which pass through a body of water on their way
to the ring-traveller by which they are guided to the spindle.
The ordinary ring-traveller employed in ring twisting machines has no pro-
vision for preventing contact between the wet strands and the ring when the
spindle is at rest and the portions of the strands adjacent to the spindle are allowed
to gravitate. The ring is usually made of steel, so that contact of the wet strands
with it causes rust, which permanently discolors the portions of the strands that
touch the ring. The stains thus formed cannot be bleached out, and the rust
has a chemical action which rots and weakens the fibres.
Our invention has for its object to provide a twister ring-traveller adapted to
prevent contact between the wet strands and the ring-rail when the spindle is at
rest, and it consists in a twister ring-traveller having arms formed to engage tha
edges of a twister-ring, a thread-guiding eye above the upper arm, said eye being
separated from the upper edge of the ring by a barrier formed to prevent the con-
tact of the thread with the ring when the traveller and the accompanying spindle
are at rest.
Of the accompanying drawings, forming a part of this spcification-
Figure 1 represents a side view of a traveller embodying my invention, and a
sectional view of the ring on which it travels.
Figures 2 and 3 represent similar views, showing other forms of traveller
embodying my invention.
The same letters of reference indicate the same parts in all the figures.
In the drawings,-
a represents a twister-ring, which is or may be of the usual form, its edges
projecting upwardly and downwardly from a suitable central support or holder a¹,
which is attached to the lifting-rail. b represents the traveller, which is made of
brass or other inoxidizable material, and is formed to extend across the inner side
of the ring, and to engage its edges, as usual in ring twisting machines, tho
traveller having end arms which embrace the edges of the ring. The upper end
of the traveller has a thread-guiding eye, between which and the upper edge
of the traveller is a barrier formed to support the thread which passes through said
eye and prevents the thread from falling into contact with the ring. The said eye
is formed to present a thread-bearing, which is located substantially in line
with the vertical section of the ring when the traveller is in its operative position,
or in other words, practically in line with the top and bottom edges of the ring

page_text: in any vertical section thereof, instead of projecting materially either inside or
outside the circle of the ring and being out of line with its vertical section. It
is important in ring twisting machines, that the strain or draft of the thread be
exerted on the traveller at a point practically in line with the upper and lower
edges of the ring, in order that the binding or cramping of the traveller on the
ring may be minimized. We have therefore arranged the eye b so that it is
practically a vertical extension of the traveller, its form and arrangement being
such that the thread-bearing b has substantially the same relation to the vertical
section of the ring (excepting as to its distance from the upper edge of the ring)
as in an ordinary twister traveller, in which the thread-hearing is the under
side of the upper arm of the traveller instead of being the under side of an eye
above said arm.
The thread-guiding eye arranged as above described, and the thread-barrier
between the said eye and the ring, are the novel features of our improved
traveller.
The construction of the traveller, including said eye and barrier, may be
variously modified.
In Figure 1, the said barrier is an inwardly projecting extension of one of the
arms of the traveller, said extension being separated from the body of the traveller
by a narrow opening 2, which permits the thread to be pulled up into the thread-
eye, but prevents it from dropping loosely back.
In Figure 2, the barrier is formed by two co-operating angles or projections
on the traveller, said angles being separated by a narrow opening 63 which is
formed to act like the opening 2.
In Figure 3, the barrier is formed by the crossing of two parts of the traveller
below the eye, the crossed parts normally hearing against each other, but being
separable to permit the thread to be pulled up into the eye without allowing it
to drop loosely back.
It will be seen that in each case provision is made for quickly engaging the
thread with the traveller, as well as for preventing its contact with the ring.
We do not limit ourselves to the forms here shown, as the invention is capable
of embodiment in various other forms.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is: :-
1. A twister ring-traveller formed to engage the edges of a twister-ring and
having a thread-bearing which is located substantially in line with the vertical
section of the ring when the traveller is in its operative position, and a thread-
barrier below said bearing.
2. A, twister ring-traveller having arms formed to engage the edges of a twister-
ring, a thread-guiding eye above the upper arm and having a thread-bearing
which is located substantially in line with the vertical section of the ring, said eye
being separated from the upper edge of the ring by a barrier having provisions for
permitting the thread to be pulled upwardly into the guiding eye, and for pre-
venting loose downward movement of the thread from the eye.
Det thi. Del
100x
JOHN BOOTH.
CHARLES DENNY WOOD.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.