Improvements in and relating to Spinning Rings and Travelers.
Year: 1892

page_text: Date of Application, 26th Apr., 1892-Accepted, 28th May, 1892
COMPLETE SPECIFICATION.
Improvements in and relating to Spinning Rings and Travelers.
I, CHARLES HENRY CHAPMAN, a citizen of the United States of America,
residing at Groton, in the County of Middlesex and State of Massachusetts, one of
the United States of America, Mechanic, do hereby declare the nature of this
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 that class of spinning apparatus known as ring spinning
frames or machines; and the object of the invention is to equalize the tension on
the yarn.
In effecting the object of my invention I make use of a spinning ring having the
base or holder, neck and race made of separate pieces and sprung together, the race
being set upon the neck at an angle of about thirty degrees; and I employ a very
light traveler, which is sprung upon the race and has an elevated eye for the yarn
and is self-adjusting upon the race, all as I will proceed now more particularly to
set forth and finally claim.
In the accompanying drawings illustrating my invention, in the several figures
of which like parts are similarly designated-
Figure 1 is a plan view, and Figure 2 is a vertical section of the ring.
Figure 3 is a plan view of the base or holder;
Figure 4 is a plan view and Figure 5 is a side view of the holder neck.
Figure 6 is a sectional elevation, omitting, however, the ring-holder, illustrating
the application of my invention in spinning.
Figure 7 is a side view, and Figure 8 an edge view of the traveler.
It has been found to be very desirable that the point of contact of the yarn with
the traveler should be at the greatest distance from the center of motion of the
traveler; and also that the traveler should have its portion which engages the yarn
capable of swinging toward and from the spindle as the centrifugal force of the
traveler and tension of the yarn demand. These desirable features are present in
my invention.
When the ring-race is so constructed as to compel the traveler to stand in an
upright position, the traveler must be of such weight at its upper end that the
tension of the yarn is not sufficient to overcome the centrifugal force, and hence
there follows much spoiled work and much waste of time and material. These
objections I avoid in my invention.
In practicing my invention, it will be understood that, as in other ring spinning
frames, my ring must be of the right size and the traveler of the proper weight to
correspond with the number of the yarn and the desired speed.
The holder or base a, has the notches b, for the reception of the screws commonly
used to secure the rings to the ring rail, and these notches are made larger than
the screw shanks in order to admit of the adjustment of the holders to secure as
perfect concentricity of the ring and spindle as may be. The holder is made with
the upturned lips, c on its inner edge. The neck d of the holder is made, in the
preferred form, as a concavo-convex ring, of sheet metal, slitted at d¹, d', on its
upper and lower edges. By means of this lower slitted edge the neck is adapted
to be sprung upon the lips, e, of the holder, and thereby to be securely united to
such holder. The ring-race, e, is made as a flat, beveled ring, having in its under
face a groove e into which is sprung the upper slitted edge of the holder-neck d,
whereby the race is united to the holder. The race is arranged upon the holder
at about an angle of thirty degrees; that is to say, with an upward and outward
flare or slant.
The traveler fis constructed of suitable stiff spring metal, with a look f' at one

page_text: end to engage the ring race, an upwardly inclined shank f overlying the race and
which terminates in an eye f³, at its highest end to receive the yarn, a curved
portion working over the upper edge of the race, and a hook f' to engage the
lower face of the upper edge, the hooks f¹ and f' serving to connect the traveler
and race. The traveler may be applied to the race by hooking one end over the
edge of the race and springing the other end into place.
When the traveler is adjusted upon the ring-race and in operation, its center of
vertical motion is at the hook f¹, and the traveler can swing outwardly until the
shank comes into contact with the ring-race; or it can swing inwardly until
the hook comes into contact with the under face of the upper end of the race.
instead
In either case, the traveler is held to the ring-race by the hooks ƒ¹ and ƒ³,
of being held by one end only, as in other inventions of mine.'
As already intimated, the centrifugal force is so great upon a traveler constructed
to clasp the ring-race when the ring is made to hold or compel the traveler to swing
around in an upright position, that it entirely defeats the object aimed at. If the
traveler could be swung around upon the ring race free from all restraint either by
the ring race or the yarn, so far as its ontward or inward swinging motion is
concerned, the traveler would seek, at once, a horizontal line in relation to its
center of gravity, and all of its centrifugal force would be sustained by the hook f¹,
that is to say, its center of vertical motion; and in this position there would be
practically no resistance at the eye f³ through which the yarn passes; but when
the traveler is held in a position where the shank f' is in a perpendicular line, the
centrifugal force is very great. Between these two points, then, is the proper
position to attain success, and in my construction of parts I have demonstrated the
correctness of this proposition. The hook f¹ clasps the inner edge of the ring-race;
the hook or lip prevents the disengagement of the traveler from the race, and
the curve being described on a circle whose center is the center of vertical
motion of the traveler, maintains the same relative position to the outer edge of
the ring-race and allows the traveler to swing outwardly and inwardly, as may be
required, and prevents it from dropping down or being unhooked from the ring-
race. The shank is the lever to the eye f. The eye f³ through which the
thread passes keeps the thread from slipping down upon the shank into the hook ƒ¹,
which it would do were it not for the eye, as soon as the traveler should be thrown
outwardly by the centrifugal force, an occurrence that would defeat the object
sought to be attained by my invention.
In the art of spinning it is essential that the ring be concentric with the spindle,
and this concentricity is no easy matter to preserve inasmuch as so many forces
tend to destroy it; for example, the liability of the spindle to careen out of
perpendicular line, the wear of the lifting rods of the ring-rail, and tension of the
bands. When there is eccentricity of the ring and spindle in the use of the ordinary
ring and traveler, there is a yank upon the yarn at every revolution of the traveler,
thereby causing a large number of breakages and a loss of production and material.
With my invention this evil is reduced to a minimum because the traveler will yield
when the ring is out of center.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A spinning ring composed of a holder-base having upturned lips, a ring-race
constructed with a groove, and a neck constructed with slits in its lower edge to
adapt it to be sprung upon such lips and thereby secure it and the base, and also
constructed with slits in its upper edge whereby it is adapted to be sprung into the
groove of the ring-race to unite them, substantially as described.
2. A spinning ring traveler having a hook at one end, a straight inclined shank
terminating at its upper end in a yarn eye, a curved spring portion whose center of
motion is the aforementioned hook, and a stop-hook at the end of said curved
portion, substantially as described.
:

page_text: 3. An inclined ring-race flaring outwardly, in combination with a traveler
having a hook to engage the inner and lower end of the race and vibrating there-
upon as a lever upon its fulcrum and provided with an elevated yarn-receiving eye
which has a to-and-fro motion relatively to the spindle, and also provided with a
curved spring portion having a hook to engage the outer and under edge of the
ring-race, substantially as described.
4. A traveler constructed with an upwardly inclined shank, a hook at the lower
end of said shank to engage the inner edge of the ring-race upon which the traveler
swings inwardly and outwardly in relation to the spindle as a lever upon its fulcrum,
a stop-hook to engage the outer edge of the ring-race, and a yarn-eye at the upper
end of said shank, by which the yarn is prevented from slipping down upon the
shank when the traveler is thrown outwardly by its centrifugal force, in combination
with a ring-race upon which the said traveler can swing inwardly and outwardly
in relation to the spindle to an angle of forty-five or more degrees toward the
› horizontal, substantially as described.
ASTITY TO
Apr 1074.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.