Improvements in Thread Carriers for Looms.
Year: 1898

page_text: Date of Application, 5th Apr., 1898-Accepted, 25th June, 1898.
COMPLETE SPECIFICATION.
Improvements in Thread Carriers for Looms.
I, DANIEL MUNSON SEATON, of 24, Montgomery Street, City and County of San
Francisco, California, United States of America, Lawyer, 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:
In an application of even date herewith, I have shown described and claimed
a complete loom adapted to produce a woven fabric, in which the weft threads
are formed of pieces of a length substantially double the width of the fabric
to be woven, whereby loops and free ends are alternately presented. This case
presents separately, an improved form of shuttle capable of use with looms of
a different construction as well as that made the subject of the application
referred to. The present invention is a shuttle adapted to receive the thread
from an outside source of supply and provided with jaws or nippers adapted .to
grasp the filling thread or weft in order to carry it through the shed.
In the accompanying drawing,
Figure 1 shows the shuttle in plan with the top wall partly broken away.
Figure 2 is a front view with parts in section.
Figure 3 is a view in section of one end of the shuttle, the parts being enlarged.
Figure 4 is a cross section on line a-b Fig. 2, the parts being enlarged.
It will be seen that the shuttle S consists of a hollow box formed preferably
of sheet metal closed on three sides and partially open on the front side. The
shuttle may be made, however, of any material and may be pressed into shape if
made of metal or put together in any desired manner. The body portion is sub-
stantially rectangular and it is adapted to work back and forth on the beam of
the loom as usual. The shuttle is made symmetrical at each end and its rear wall
projects beyond the shell or casing of the body to form the fixed parts of nippers
or jaws, the movable part being shown at s¹ and having pivotal connection with
the body of the shuttle proper, being located within the same and having one
end extending outwardly to form with the stationary part s, a pair of nippers or
jaws adapted to grasp the weft or filling thread. The movable jaw s¹ is prefer-
ably pivoted as shown in Figures 2 and 3, between the top and bottom walls of
the shuttle and the jaw is held normally closed and in contact with the front
face of the fixed parts by means of a spring engaging at one end with the
jaws in front of its pivot and at the other end with a projection 86 pressed in
from the rear wall of the shuttle or secured thereto. This projection 6 has a
series of holes in it SO as to permit the proper adjustment of the
spring $5 to
vary its tension. The rear end of the pivoted jaw,
shown at 3, carries a roller 4 held in the bifurcated end of the part 3 and this
roller projects through the opening in the wall of the shuttle in the closed
position of the pivoted jaw s¹, this being the normal position as shown in Figure 1.
In order to open the jaw s¹ to receive the end of the weft or filling thread or
to release the filling thread in the reverse action of the shuttle I provide a pair
of shuttle openers adapted to come in contact with the projecting roller s so as
n

page_text: to throw this roller and the part inward against the tension of the spring s
which will have the effect to open the movable jaw s¹. The shuttle openers need
not be described herein as they are the subject of an independent application of
even date herewith.
The shuttle is provided in its upper wall with slots 89 $10 adapted to receive the
end of a pusher for giving additional movement to the shuttle, this pusher
being included in a companion case of even date herewith.
The projecting portions s at each end of the shuttle leave shoulders St for the
stroke of the picker stick.
As the yarn or thread is fed to the shuttle, the jaws or nippers grip it a little
above the end and the thread is held between the jaws in a hooked form, and in
order to straighten this end out, when the shuttle reaches the limit of its move-
ment, I have provided the movable jaw with a pin s adapted normally to register
with a corresponding opening in the stationary jaw of the shuttle. When the
movable jaw has been opened to release the thread it will be observed that in
the final movement of the shuttle the loop or hook in the thread around the pin
will be drawn straight by the action of the pin s³.
As shown in Figure 4 in the cross section, the top and bottom walls have their
edges bent to form a partial front wall having a central horizontal opening
between. The ends 12 12, Figure 2, of said edges have their corners beveled off.
The top wall of the shuttle is wider than the bottom so that its downwardly
bent edge overhangs the edge of the lower wall as at 1, Figure 4. This con-
struction permits the rollers to protrude beyond the edge of the bottom wall so
as to be actuated by the opener devices described in the application aforesaid
while the projecting edge of the upper wall serves to protect the roller.
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 shuttle comprising a hollow shell or casing having a longitudinal opening
on one side, one wall of the casing projecting outwardly beyond the other wall
at said opening, a movable jaw member within the shuttle and having one end
extending beyond the edge of the other wall, substantially as described.
2. A shuttle comprising a hollow shell or casing having an overhanging top
wall and a bottom wall of less width, a pivoted jaw member within the shuttle
and having one end extending beyond the edge of the bottom wall, substantially
as described.
3. A shuttle comprising a body portion and nipping jaws and a pin secured
on one end of the jaw members for straightening the yarn or thread, substan-
tially as described.
4. A shuttle comprising a body portion, a stationary jaw and a movable jaw, a
pin secured on the movable jaw and a corresponding recess in the fixed jaw,
substantially aś described.
5., A shuttle comprising a metal shell,, closed on three sides and partially open
on the front, the edges of the front wall being out of line, a stationary jaw
member at each end formed by an extension of the back plate, a movable jaw
member at each end pivoted within the casing, the rear ends of the pivoted jaws
protruding normally through the opening in the front wall, springs for keeping
the movable jaws in contact with the stationary jaws and shoulders S¹ formed
By the ends of the body of the shuttle, substantially as described.
6. A shuttle comprising a hollow casing having an opening on one side, one
wall of said casing at said opening projecting outwardly beyond the opposite wall
thereof, said projecting wall having beveled ends, and nippers at the opposite
ends, of the shuttle substantially as described.
7. A shuttle comprising a hollow casing having a longitudinal opening on one
side, the walls of the shuttle at said openings being bent inwardly, one of "said

page_text: walls projecting outwardly beyond the other, and nippers carried at the end of
said shuttle, substantially as described.
FELL & JAMES.
Agents for the Applicant.