IMPROVEMENTS IN LOOM SHUTTLES
Year: 1885

page_text: I CHARLES AUBREY DAY of 321 High Holborn in the County of Middlesex,
Fellow of the Institute of Patent Agents, do hereby declare the nature of the said
invention for IMPROVEMENTS IN LOOM SHUTTLES a communication to me from
abroad by Louis Goddu of Winchester, Massachusetts United States of America
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
The object of this invention is to provide a loom shuttle, wherein the weft or
filling thread may be inserted laterally into the several eyes, the tension of the
thread be regulated as may be desired and wherein the cop tube holding the cop of
thread may be held securely..
This invention consists in a loom shuttle having a spiral or open thread directing.
and thread delivery eye, combined with a thread tension device located between
the said eyes, the wood of the shuttle being slotted diagonally to permit the,
introduction of the thread into the said eyes and about the tension device, as will
be described.
Also, in a shuttle body and its spindle, combined with a cop-tube composed of a
strip of sheet metal twisted spirally to form a tube, the edges of the metal being
left separated, as shown, to enable the cop-tube to expand as it is forced upon the;
tapering spindle, as will be described.
This invention also consists in a spirally slotted delivery eye, combined with a
shuttle body provided with a slot, by which to lead the thread into the said eye
laterally, as will be described.
combined
This invention also consists in a spiral or thread directing eye,
open
with the shuttle body slotted to permit the introduction of the thread laterally into
the said eye, substantially as will be described.
Fig. 1 in top view represents a loom shuttle embodying my invention.
Fig. 2, a side elevation of Fig. 1, turned over from the position Fig. 1, the main,
parts within the shuttle body being shown by dotted lines.
Fig. 3 is a section of Fig. 1 in the dotted line x-x.
Fig. 4 is a sectional detail of Fig. 1 in a line at right angles to the said dotted
line m

page_text: Fig. 4 a detail top view of one end of the shuttle body to show the slots and
the hole therein for the tension post or stud.
Fig. 5 is a section of the spindle and cop tube in the dotted line x-¹¹ Fig. 1.
Fig. 6 à like section in the dotted line x-x Fig. 1.
Fig. 7 is a plan view and section of the spiral or open directing eye.
Fig. 8 a plan view of the cop-tube.
Fig. 9 a plan view of the spindle.
Fig. 10 details of the spirally slotted thread delivery eye.
Fig. 11 a section of Fig. 1 in the dotted line y-y, and
Fig. 12 a section of Fig. 3 in the dotted line y-y².
The shuttle body A has a spindle a the head a¹ of which is pivoted in the body
on the pin a².
The spindle is tapering and preferably is for part of its length made diamond
shape in cross section as shown best in Fig. 6.
The spindle head is cut away to leave a shoulder a³ which cooperates with
shoulders 2, 3, of a spindle stop piece h attached to the body by a screw 5. A
spring a of usual construction acting on the corner 6 of the head aids in keeping
the spindle in its extreme positions, both in and out of the shuttle body.
The cop-tube b on which is wound the cop or mass of weft or filling threads,
shown by dotted lines in Fig. 1 is made of a strip of steel metal twisted spirally to
form a tube, as shown, the edges of the metal at the small or delivery end of the
cop-tube are brought close together or soldered, so as to obviate an open slot at
that end of the cop-tube into which the thread can catch, as it is pulled off the cop-
tube and off the end of the spindle, but from just back of the small end of the
cop-tube to its base or large end which is provided with a projection 7, the edges
of the metal of the cop-tube are left separated as at 62 for a suitable distance to
permit the tube to expand inside of the cop, as the cop-tube is forced upon the
spindle, as in Fig. 1, such expansion of the cop-tube inside the cop, holding the
latter snugly and permitting it to be unwound down substantially to its last layers.
If the edges of the strip of metal of which the cop-tube is made, normally touched
from end to end of the cop-tube, then the cop-tube could not expand when forced
upon the spindle and such a cop-tube would not be of my invention.
The wood of the shuttle in advance of the point of the spindle is bored as at 8,
see Figs. 4, 11 and 12, and the hole so formed is intersected by a hole 10 bored
through the body A from top to bottom, and by a third hole 12 bored through from
the outer side to the center of the body. The body between the holes 8 and 10,
see Figs 4 and 11, is slotted diagonally as at 13; and between the holes 10 and
12, the body is slotted diagonally or V-like.
A third directing eye f, shown separately' in Fig. 7, composed of metal bent or
curled to form an eye or scroll with a space f¹ between its overlapping parts, is
placed in the shuttle in advance of the point of the spindle a, and the folded or
curled part of the eye is inserted into the hole 8, see Fig. 4, the latter being enough
greater in diameter than the exterior diameter of the eye, as, to leave a space, see
Figs. 11 & 12, between the outside of the eye and the body for the passage of the
thread.
When the thread is introduced laterally into the slot 13, and pulled, it travels
partially about the eye or to its under side when it enters the space f¹ and passes
through it into the center of the eye, where it will be guided without liability of
being drawn up and out through the slot 13.
.
The hole 10 receives the tension post or screw stud d having a tapering blade,
one point of which is exposed in the groove g in the top of the shuttle body, so
as to permit the thread to be caught under the edge of the head preparatory to
introducing the thread laterally into the slot 14, 15, and thence into the spiral
slot 18 of the thread delivery eye e, shown separately in Fig. 10, and introduced
into the hole 12.
The tension post or screw stud d is grooved at the junction of its body and head,
leaving an eccentric neck d² and as shown in Figs. 3 and 4, the upper shoulder left

page_text: after, forming the said groove, is left inclined. This neck is located substantially
between the directing eye and the delivery eye and the thread bears against and is
made to wrap itself more or less about the said eccentric neck, as may be necessary
to produce the desired amount of tension, the screw stud being turned by a screw
driver. As the screw stud is rotated to adjust the tension of the shuttle thread,
the inclined shoulder acting on the thread, forces the latter down out of direct line,
this also increases the tension.
The directing eye f is held as herein shown by the screw f³.
When the spindle is in working position within the shuttle body, the shoulder of
the cop-tube catches back of the end 22 of the stop-piece h, the latter thereafter
preventing longitudinal movement of the cop-tube on the spindle until the latter is
again raised or turned out of the body about the pin a² or until the projection «³
meets the shoulder 3.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is
First. A loom shuttle having a spiral or open thread directing and thread
delivery eye, combined with a thread tension device located between the said eyes,
the wood of the shuttle being slotted diagonally to permit the introduction of the
thread into the said eyes and about the tension device, substantially as described.
Second. A shuttle body and its spindle combined with a cop-tube composed of a
strip of sheet metal twisted spirally to form a tube, the edges of the metal being
left separated, as shown, to enable the cop-tube to expand, as it is forced upon the
tapering spindle, substantially as described.
Third. The spirally slotted delivery eye, combined with a shuttle body provided
with a slot by which to lead the thread into the said eye laterally, substantially as
described,
Fourth. The spiral or open thread directing eye, combined with the shuttle body
slotted to permit the introduction of the thread laterally into the said eye,
substantially as described.