Improvements in Shuttles for Looms.
Year: 1895

page_text: Date of Application, 23rd Aug., 1895
Complete Specification Left, 26'h May, 1896-Accepted, 27th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Shuttles for Looms.
I ALFRED ISHERWOOD of 129 Austin Street, New Bedford, in the County of
Bristol and State of Massachusetts, United States of America, Inventor do hereby
declare the nature of this invention to be as follows:-
This invention has special reference to loom shuttles, and particularly to that
class of shuttles wherein the spindle retaining spring is located on the underside
of the shuttle-body.
By my invention a simple and effective connection or joint between the spindle
and shuttle is provided by means of which the spindle is readily removable, or
maintained in its raised or lowered position, the wearing portions being so disposed
that the spindle will not be impaired or thrown out of alignment, and means are
provided for compensating for wear.
The shuttle body is provided with the usual filling opening, and is also recessed
or cut away to receive a rest-plate, which is provided with a fulcrum lug to enter
a groove in the spindle head, which latter has a downward extension.
A screw enters the extension longitudinally relative to the spindle, the head of
the screw being adapted to abut against a portion of the rest-plate when the
spindle is in its lowest position, so that an adjustment of the screw will compensate
for wear.
A spring is secured to the shuttle body and has an extension in the path of the
extension on the spindle head, so that the spring acts to retain the spindle either
in its lower or its raised position.
When the spindle is raised the extension on its head rides over the spring and
contacts with a stop on the latter as the upper portion of the spindle head contacts
with a portion of the rest plate.
All wear is in the direction of the spindle, so that the latter will not get
out of alignment, to thereby obstruct the free passage of the filling from the
shuttle.
1 ALFRED ISHERWOOD of 129 Austin Street, New Bedford in the County of
Bristol and State of Massachusetts, United States of America, Inventor, 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 has special reference to loom shuttles, and particularly to that
class of shuttles wherein the spindle retaining spring is located on the undersiue
of the shuttle-body.
A simple and effective connection or joint between the spindle and shuttle is
provided, by means of which the spindle is readily removable, or maintained in its

page_text: raised or lowered position, the wearing portions being so disposed that the spindle
will not be impared or thrown out of alignment, and means are provided for
compensating for wear.
In accordance therewith my invention consists in the use in a shuttle body
having its underside provided with a recess, of a rest-plate, a spindle arranged
movably under and interlocking with said rest-plate and provided with a lower
extension, a spring seated in the recess under the spindle head and provided at
its inner end with a stop arranged in the path of the extension of the head of the
spindle, and means for securing the spring in position.
Also, in the use with a shuttle body having a recess upon its underside, of a
rest-plate arranged in the recess and provided at its front end upon its underside
with a depending rounded transverse bearing rib, of a spindle terminating
at its rear end in a head having a rounded transverse bearing groove to receive the
rib and upon its underside a depending extension, a spring arranged upon the
underside of the spindle and bearing there-against and provided at its front end
with a stop-pin arranged in the path of the depending portion or extension of
the bead.
Also, in the use with a shuttle body having a recess, of a rest-plate having a
transverse bearing rib arranged in the recess, a spindle having a transversely
grooved head engaging loosely with the rib or the rest plate and provided with an
extension having a longitudinal threaded perforation, and an adjusting screw
arranged in the perforation and adapted at its rear end to bear against the rest
plate.
Also, in the use with a shuttle body having a recess, of an angular rest-plate
seated therein and provided with a depending bearing-rib and in rear of the same
with a recess, of a spindle having a head provided with a transverse bearing
groove for receiving the rib, a threaded perforation formed longitudinally in the
spindle head, an adjusting screw arranged in the perforation and terminating at
its rear end in a head adapted to fit the recess of the rest-plate and provided at one
end with a tool-receiving kerf and a spring arranged at the under side of the
shuttle and bearing on the spindle head.
Also, in the use with a shuttle-body having a recess and a slot, of a rest plate
seated in the slot and having at its front end upon its under side a depending
rounded bearing rib and at its rear end a depending neck terminating in an
angularly disposed head or plate seated in the recess, a spindle having a head at
its rear end provided upon its upper side with a transverse groove for engaging the
rib, the front wall of said groove being inclined, said head being provided upon its
underside with an extension having a longitudinal threaded perforation, a headed
adjusting screw arranged in the perforation, and a spring arranged at the underside
of the shuttle and having a stop located in the path of the extension.
Also, in the use with a shuttle body having a recess and a slot, of a rest-plate
seated in the slot and having at its front end upon its underside a depending
rounded bearing rib and at its rear end a depending neck terminating in a
rearwardly disposed securing head seated in the recess, a spindle having a
head at its rear end provided upon its upper side with a transverse bearing
groove for engaging the rib, the front wall of said groove being inclined
said head being provided upon its underside with an extension having a
threaded perforation, a headed adjusting-screw arranged in the perforation, and
a spring arranged at the underside of the shuttle and having a stop located in the
path of the extension, and at its end a concaved bobbin catch flange.
Also, in the use with a shuttle body and its spindle having an angular head, of
a bowed spring arranged upon the shuttle body and having its front end bearing
upon said head, and provided with an offset having a recess, or a recess having an
offset, a bolt having a fin passed through the recess and shuttle body and engaging
the offset, a grooved washer over the bolt out of contact with the spring and
provided with grooves or ribs upon its upper side, and a nut on the bolt provided
on its side adjacent to the washer with ribs to engage the grooves of the washer.

page_text: Also, in the use in a shuttle body of a bowed spring having an offset bent over
upon itself and having a bolt receiving aperture, whereby the spring may be held
in place on the shuttle body by a bolt.
Also, the use with a shuttle body, of a bowed spring, an attaching bolt extended
through the shuttle, a washer on the bolt and provided on one side with grooves,
and a co-operating nut which has ribs on its side adjacent the washer to enter the
ribs of the latter.
Fig. 1 is a longitudinal sectional view of a shuttle embodying my invention, the
same being shown with the spindle in position within the shuttle.
Fig. 2 is a similar view with the spindle raised out of position.
Fig. 3 is a detail in perspective of the rest-plate.
Fig. 4 is a similar view of the spring and bobbin-catch.
Fig. 5 is a perspective view of the rear end of the spindle.
Fig. 6 is an elevation of a portion of the spindle and a modified construction of
rest-plate.
Fig. 7 is a longitudinal sectional view of part of a shuttle, having a modified
form of rest plate, spring and retaining bolt.
Fig. 8 is a perspective view of the rest plate shown in Fig. 7.
Fig. 9 is a perspective view of the retaining bolt and its nut and washer.
Fig. 10 is a perspective view of the spring shown in Fig. 7.
Fig. 11 is a plan view of still another form of spring, and
Fig. 12 in elevation represents another form of bolt, to be used with the spring
shown in Fig. 11.
Like numerals of reference indicate like parts in all the figures of the
drawings.
The shuttle-body 1 is provided with the usual filling opening or recess and
the rear wall thereof is slotted at 2 and communicates with a shallow recess 3,
a portion of which is annular, formed in the underside of the shuttle and having a
rear branch 4.
Concentric with the annular portion of the recess 3 the shuttle-body is provided
with a screw-receiving opening 5.
The rest plate 6 comprises a horizontal portion 7, at whose front end there is
produced upon the under side a depending rounded transverse bearing rib 8 and
upon its upper side near its rear end a transverse angular spur 9 is formed.
From the rear end of the rest-plate there depends a neck or shank 10, which in
cross section is preferably semi-cylindrical, and the same terminates finally at its
lower end in horizontally and rearwardly disposed segmental securing-plate 11,
which is adapted to fit in the shallow recess 3.
The front wall or face of the neck is provided with an angular recess, forming a
transverse horizontal shoulder 12.
13 designates the spindle, the same having at its rear end the head 14.
This head 14 is provided with a transverse rounded bearing groove 15, whose
front wall is inclined at 16, and whose rear wall is similarly inclined at 17.
Below the same the head depends in an extension 18.
The groove between the two walls mentioned engages with the rounded bearing
rib 8 of the rest plate, and when the spindle is elevated the front inclined wall
bears against the front end of said rest-plate.
The lower extended end 18 of the bead of the spindle is provided with a threaded
perforation 19 disposed longitudinally with relation to the spindle and having
seated adjustably therein a screw 20.
The screw 20 is provided at its rear side beyond the head of the spindle with a
rectangular head 21, and may if desired be provided at its outer end with a kerf 22
for the reception of an ordinary screw driver, whereby, as will be obvious the
said screw may be adjusted so as to locate the head at any distance from that of
the spindle.
It is to be understood that the head of the screw is designed to fit within and

page_text: .
abut against the wall of the recess and shoulder 12 when the spindle is in its
lowest position, and consequently when wear occurs an adjustment of the screw will
compensate for the same by adjusting the point of the spindle with relation to the
shuttle body.
Arranged upon the underside of the shuttle is the spring 23, the same having an
intermediate annular enlargement 23 a which fits a shallow. recess, forming a
rearward extension of the recess 3.
The spring 23 has a front branch 25 which is provided at its end with an
upwardly-turned flange 26 and a stop pin 26" arranged in the path of the lower
extension 18 of the head of the spindle in the rear of the flange.
This flange is provided at its edge with a concaved recess and is adapted to
engage the annular groove of the hobbin.
The annular enlargement of the spring is perforated and a screw 27 is passed
upwardly through the perforation and into the opening 5 formed in the recess 4,
thus clamping the securing-head of the rest-plate and the spring in position within
the shuttle-body.
It is obvious that various changes may be made as to the details of my
invention, and I therefore do not limit the same to those herein shown and
described, but hold that I may vary the same to such a degree as comes properly
within the skill of the mechanic without departing from the spirit of my invention
or sacrificing its advantages.
As, for instance, in lieu of perforating the head of the spindle I may recess the
same at 27, as shown in the illustration of the modification, Fig. 6, and instead of
arranging the screw in the head of the spindle I may seat the screw 28 in a proper
perforation formed in the lower end of the neck of the rest-plate, as also shown in
said figure.
This, however, is a mere reversal of the parts and an obvious modification.
In raising and lowering the spindle it will be obvious that the lower end of the
extension 18, which I preferably slightly bevel, rides over the upper side of the
spring and arrives in contact with the stop-pin at the same tine that the front
inclined wall 16 of the head arrives in contact with the end of the rest plate 7, or
the wall of the filling opening in the shuttle as the case may be.
The tension of the spring is such as to maintain the spindle in either of its
positions.
It will be observed that no lateral wear can occur between the movable and
stationary parts of the connection, but that all wear will be in the direction or
disposition of the spindle. Hence the spindle will not get out of alignment and
obstruct the free passage of the filling from the bobbin, and furthermore it will be
observed that all wear may be compensated for by a slight adjustment of the screw.
As is well known by those conversant with the manufacture of shuttles and
spindles it is a difficult matter to produce the spindle-heads of a uniform size, and
I therefore obviate the necessity of such accuracy of finish by the employment of
the adjustment shown, so that even though a head differs from another it may be
inserted in the shuttle and by a simple turn or partial turn of the screw secure a
proper adjustment of the parts.
Where the screw driver is not employed in the front end of the screw, the screw
for supporting the spring may be loosened slightly, so as to permit the withdrawal
of the spindle and the screw adjusted by means of a wrench applied to its head, or,
as will be obvious, a socket-wrench might be employed for this purpose after a
removal of the spindle.
In Fig. 7 I omit the screw, using in place thereof a bolt 30, having its head 31
cut straight at 32 and with a fin or lug 33, for a purpose to be described, the bolt
passing up through a hole in the shuttle-body and through a hole 40 in the
extension 41 of the rest plate 42, which is shown separately in Fig. 8, which in
other respects is like the rest-plate 6.
A spring like unto the spring 23 requires a peculiarly shaped recess in the

page_text: shuttle, which leaves four points on which the yarn may catch, but by employing
a spring such as shown at 50, Fig. 10, a straight sided shuttle-body recess is used,
forming no projections for the thread or yarn to catch upon.
This spring may have an upturned lug or end as 51, to act as a stop for the
spindle head, and instead of perforating the spring for the bolt or screw I provide it
with a notched or recessed offset portion as 52, having a notch not shown in the
drawing to receive the bolt 30 and its fin 33.
While the offset 52 is shown as at one side of and turned over upon the spring,
it may be otherwise positioned if desired.
The head 31 of the bolt enters the space between the spring and the offset, the
fin 33 and straight side 32 of the head preventing rotative movement of the bolt,
the bolt firmly holding the spring in place.
As in Fig. 7 the upper end of the bolt hole in the shuttle body is enlarged to
receive a washer 34 and co-operating nut 35, the washer having on its underside
lugs 36 to engage the material of the shuttle body and being provided on its
opposite side with radial grooves.
The adjacent side of the nut 35 is provided with corresponding ribs 37 to
enter the grooves and thereby lock the nut in place when turned up with a
suitable key, the spring 50 keeping the nut pressed tightly against the washer.
In Fig. 11 a spring 60 having an intermediate annular enlargement 61 is shown,
said enlargement having a conical recess 62 in its outer side and a notch 63, the
recess receiving the conical head 38 of the bolt shown in Fig. 12, while a lug or
fin 39 on the head enters the notch 63 preventing rotation.
By using the locking bolt a screw is dispensed with, the parts can be kept tight
at all times without the use of a screw-driver, and if it is necessary to loosen or
remove the spring it can be done almost instantly.
From the foregoing description, in connection with the accompanying drawings,
it will be seen that I have provided a very simple mechanical construction of
connection or joint between the spindle aud shuttle wherein the former is readily
removable from the latter, is maintained in either its raised or lowered position,
where the wear is disposed to parts that will not impair or throw the spindle out
of alignment, and that I have compensated for such wear so that the life of the
shuttle and spindle is increased.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
In shuttles for looms, particularly the class of shuttles wherein the spindle
retaining spring is located on the underside of the shuttle body:
1. The construction and use of a simple and effective connection, or joint
between the spindle and shuttle, by means of which the spindle is readily removable,
or maintained in its raised or lowered position, the wearing portions being so
disposed that the spindle will not be impaired or thrown of alignment, and means
for providing compensation for wear, all substantially as described and shewn by
the drawings.
2. The use in a shuttle body having its underside provided with a recess, of a
rest-plate, a spindle arranged mmovably under and interlocking with said rest-plate
and provided with a lower extension, a spring seated in the recess under the
spindle head and provided at its inner end with a stop arranged in the path of the
extension of the head of the spindle, and means for securing the spring in position,
as set forth.
3. The use with a shuttle body having a recess upon its underside, of a rest-
plate arranged in the recess and provided at its front end upon its underside with
depending rounded transverse bearing-rib, of a spindle terminating at its rear
eud in a head having a rounded transverse bearing groove to receive the rib and
upon its underside a depending extension, a spring arranged upon the underside of
the spindle and bearing there-against and provided at its front end with a stop-pin

page_text: arranged in the path of the depending portion or extension of the head, as
.Bet forth.
4. The use with a shuttle body. having a recess, of a rest-plate having a
transverse bearing rib arranged in the recess, a spindle having a transversely
grooved head engaging loosely with the rib or the rest plate and provided with an
extension having a longitudinal threaded perforation, and an adjusting screw
arranged in the perforation and adapted at its rear end to bear against the rest
plate, as set forth.
5. The use with a shuttle body having a recess, of an angular rest-plate seated
therein and provided with a depending bearing rib and in rear of the same with
a recess, of a spindle having a head provided with a transverse bearing groove for
receiving the rib, a threaded perforation formed longitudinally in the spindle
head, an adjusting screw arranged in the perforation and terminating at its rear
end in a head adapted to fit the recess of the rest-plate and provided at one end
with a tool-receiving kerf and a spring arranged at the under side of the shuttle
and bearing on the spindle head, as set forth.
6. The use with a shuttle-body having a recess and a slot, of a rest-plate seated
in the slot and having at its front end upon its underside a depending rounded
bearing rib and at its rear end a depending neck terminating in an angularly
disposed head or plate seated in the recess, a spindle having a head at its rear end.
provided upon its upper side with a transverse groove for engaging the rib, the
front wall of said groove being inclined, said head being provided upon its under-
side with an extension having a longitudinal threaded perforation, a headed
adjusting screw arranged in the perforation, and a spring arranged at the underside
of the shuttle and having a stop located in the path of the extension, as
set forth.
7. The use with a shuttle body having a recess and a slot, of a rest-plate seated
in the slot and having at its front end upon its under side a depending rounded
bearing rib and at its rear end a depending neck terminating in a rearwardly
disposed securing head seated in the recess, a spindle having a head at its rear
end provided upon its upper side with a transverse bearing groove for engaging
the rib, the front wall of said groove being inclined, said head being provided
upon its underside with an extension having a threaded perforation, a headed
adjusting-screw arranged in the perforation, and a spring arranged at the underside
of the shuttle and having a stop located in the path of the extension, and at its
end a concaved bobbin catch flauge, as set forth.
8. The use with a shuttle body and its spindle having an angular head, of a
bowed spring arranged upon the shuttle body and having its front end bearing
upon said head, and provided with an offset having a recess, or a recess having
an offset, a bolt having a fin passed through the recess and shuttle body and
engaging the offset, a grooved washer over the bolt out of contact with the spring
and provided with grooves or ribs upon its upper side, and a nut on the bolt
provided on its side adjacent to the washer with ribs to engage the grooves of the
washer, as set forth.
9. The use in a shuttle body of a bowed spring having an offset bent over upon
itself and having a bolt receiving aperture, whereby the spring may be held in
place on the shuttle body by a bolt, as set forth.
10. The use with a shuttle body, of a bowed spring, an attaching bolt
extended through the shuttle, a washer on the bolt and provided on one side
with grooves, and a co-operating nut which has ribs on its side adjacent the
washer, to enter the ribs of the latter as set forth.
Dated the 22nd day of Mon 1906
WM. BROOKES & SON,
55 & 56 Chancery Lane, London, Agents for the Applicant.