Improvements in and relating to Means for Changing Bobbins and the like in Shuttles of Looms for Weaving.
Year: 1899

page_text: Reprinted as amended in accordance with the decision of the Comptroller General
astim oddated the 30th day of July 1902 and so paisagam
afel zed-idded griment
aled The Amendments are shown in erased & italic type. ho
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Date of Application, 6th May, 1899-Accepted, 29th July, 1899
"Improvements in and relating to Means for Changing Bobbins
and the like in Shuttles of Looms for Weaving.",
We, WILLIAM HENRY BAKER, of Central Falls, in the County of Providence, and
State of Rhode Island, United States of America, Electrician, and FREDERIC
ELLSWORTH KIP of Montclair in the County of Essex and State of New Jersey,
United States of America, Manufacturer, 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 devices employed for automatically supplying
filling or weft to the shuttle of a loom; and it has for its object, partly to employ
electricity for controlling and determining the supply of filling, and partly to provide
simple and efficient mechanical means for carrying out the invention, all as will be
more particularly hereinafter described.
In the accompanying drawings which serve to illustrate an embodiment of the
invention-
i
Figure 1 is a general view of an ordinary loom provided with the improved weft-
supplying mechanism, the latter being represented in this view on a small scale.
Figures 2, 3, 3, 4 and 5 are views of the weft-supplying mechanism, on a larger
scale; Figure 2 being a rear view, as seen from the right in Fig. 3; Fig. 3 is vertical
section, substantially at line 23 in Fig. 2; Fig. 3* a fragmentary sectional view at
line similar to Fig. 3, but showing the bobbin-carrier in a different position ;
Fig. 4 à horizontal section taken substantially at line 4 in Fig. 3; and Fig. 5 a
fragmentary face view of the carrier, showing one of the fingers thereon.
Figure 6 is a side view of the shuttle box; and Figures 7 and 8, are, respectively,
a plan and side view of the shuttle, detached. These views are on a larger scale than
the précéding figures.
Figure 9 is a sectional plan, on a large scale, of parts of the shuttle-box, shuttle,
bobbin-box and bobbin, illustrating the electrical connections; and Fig.. 10 is an end
view of the bobbin-box and bobbin.
Figures. 11 and 12 are views of the bobbin-box and bobbin illustrating modified
forms of the contact devices on the bobbin.
Figure 1 is merely an illustrative. view, designed to show the position of the weft
silving device on the looin. is the loom frameL the lay; B'the shuttle-box
supplying
thereon;
P the pickers; S the shuttle, and W (in Figure 1), the weft-supplying
mechanisin as a whole."
Respecting this latter mechanism, which is best seen in the detail views 1 is a
Strong bracket, mounted on the loom-frame, and 2, is an upright magazine which
holds, the bobbins, each enclosed in a bobbin-box 3. The bobbin-boxes rest one on
another, or superposed, in the magazine, and they are taken from the bottoin of the
2012/13
*Price Si77
.

page_text: magazine, one by one, by a rocking. carrier, and transferred to the shuttle S, the
incoming bobbin-box displacing that already in the shuttle.
Mounted to rock in bearings (4, 4, in Figures 2 and 4) in the bracket 1, is a
shaft 5, on which is fixed the carrier, 6. This carrier is in the form of a frame, of
quadrant shape as seen in Figure 3, and carrying one section, 7, of the semi-
cylindrical enclosing casing, the other section, 7, thereof, being fixed in position and
connected with the magazine 2. This magazine may be composed, as here shown, of
two like upright end-pieces or keepers, in which the respective ends of the bobbin-
boxes 3 are guided in their descent, as by gravity, to the point where the rocking
carrier frame 6 takes them.
It may be well to explain here that the bobbin-box 3 is of elongated form, of stiff,
thin material, preferably sheet steel, and of such size and proportions as to fit into
the hollow of the shuttle S. Each box 3, has formed in it a mortise or socket, 3*
(Figure 8), near each end thereof, to receive flat carrying pins or fingers, 6ª, on the
frame 6. As the lower bobbin-box descends from the magazine (see Figure 3) it
engages the fingers 6 and is ready to be transferred to the shuttle.
The electrical devices will now be described. On the lay L, is mounted a stout
bracket, 8 (Figures 3 and 3*), which supports an electro-magnet, M, and an elbow-
shaped armature lever, 9, carrying the armature m. The upper arm of the lever 9,
has a toe, 9, which when the magnet M is excited and attracts its armature, is pro-
jected upward through an aperture in the horizontal arm of the bracket 8. The
bracket 8 and magnet M move to and fro with the lay, of course, being mounted
thereon.
Mounted to slide in a guideway in the bracket 1, is a rack, 10, which plays directly
over the bracket 8; and gearing with this rack is a circular rack, 11, fixed to the
rocking carrier 6, and concentric with the shaft 5. Now if the electro-magnet M be
not excited when the lay advances in beating up, the toe 9 will move in under the
rack 10, and the carrier 6 will not be operated; but if the magnet be excited, the
toe 9 will be protruded upward and will impinge upon and take over the end of
the rack 10, thus driving said rack back, and through its engagement with the gear
or curved rack 11, rocking the carrier 6. The carrier moves forward the bobbin-box 3
which is engaged by the fingers thereon (see Figure 3a) eventually driving it down into
the shuttle, knocking out or displacing the bobbin-box 3 therein, which latter falls down
through the open shuttle and a slot or aperture in the lay. The shifting or changing
of the bobbin-boxes in the shuttle breaks the circuit, as will be hereinafter explained,
and the armature spring, 9b, withdraws the toe 9*. On the return or back movement
of the lay the fingers 6* are withdrawn from the bobbin-box in the shuttle, and the
carrier 6, now free, is returned to its normal position by a suitable spring, 12. It
may be well to state that when the carrier rocks forward to deposit a bobbin-box in
the shuttle, the curved, movable section 7 of the casing moves under the bottom of
the magazine 2 and prevents the descent of the bobbin-boxes therein; but as the
carrier moves back to the position seen in Fig. 3 the magazine is again uncovered
and the lower bobbin-box therein descends and engages the upright fingers 6".
One corner or angle, 3, of the bobbin-box is rounded or cut away so as to permit it
to enter the shuttle readily, and the shuttle is open at its bottom to allow the bobbin-
box to drop down through when displaced.
.
Referring to Figure 6, which shows the shuttle-box on the lay in side elevation,
w represents an electric circuit and G, a generator supplying same. This circuit may
be arranged in any way known to electricians. On the shuttle-box are two spring
terminals, t, t, of said electric circuit w, and these terminals are adapted to bear
respectively, on contact-plates 13 and 13x, set in, the side of the shuttle S, as best seen
in Figures 6 and 9. In the shuttle, at its respective ends, are mounted elastically
yielding holders for the bobbin-box 3; these hold the box in place by an elastic end-
pressure thereon, but yield and permit it to be knocked out by an incoming, box, as
already explained. At the right, in Figure 8, the wooden shuttle is broken away to
show the wedge-shaped, yielding, metal holder, 14, which is electrically connected by a
suitable wire or the like with the contact-plate 13*; and in Figure 9, particularly, the

page_text: plate 13 is shown to be electrically connected, in a similar manner with the yielding,
cone-shaped, metal holder, 14, at this end of the shuttle.
Figures 9 and 10 show the bobbin, 15, in detail. It may be of wood, as usual, and
has at its larger end a flanged metal ring or collar, 16, which is in contact with the
metal bobbin-box 3. The box 3 is open at this end and the bobbin is inserted at said
opening. The ring 16, is connected electrically by a conductor, 17, with a metal
collar, 18, on the smaller part of the bobbin.. Thus it will be seen the collar 18, is
connected electrically with the spring terminal tx, when the shuttle is in its proper
place in the box B, the connection being through the conductor 17, the ring 16, the
metal of the box 3, and the metal holder 14*.
.
Within the end of the bobbin (Figures 9 and 10) is set and insulated a metal piece,
block, or ring, 19, coned to receive the holder 14, and to this ring or piece is electri-
cally connected a metallic spring contact piece, 20, which occupies a slot formed in
the bobbin, and its free end takes under or within the collar 18. This contact spring
tends normally to spring outward at its free end into contact with the inner face of
the collar; and as this would connect the collar 18 electrically with the circuit
terminal 13, through the said spring 20, the ring 19, the holder 14, and the plate 13,
obviously the circuit would be closed. But when the filling or weft is wound on the
bobbin, it hears on an exposed portion of the spring 20 and presses the free end
of the latter inward out of contact with the collar 18, thus holding the circuit
open so long as there is sufficient filling on the bobbin to overcome the elasticity
of the spring 20. When, however, the filling is nearly exhausted from the bobbin,
the spring 20 will overcome the slight pressure on it and move into contact with
the collar 18, thus closing the circuit at that point. This may happen when the
shuttle is not in the shuttle-box B; but the instant the shuttle thereafter enters
this box, the spring contact terminals & and on the box will be put into contact
with respective plates 13 and 13* on the shuttle and this will complete the circuit
through the electro-magnet M. The effect of the excitation of this magnet in effect-
ing the operation of the carrier 6 has been described.
Thus the attendant will only be required to keep the magazine 2 supplied with the
bobbins in their boxes, and the shuttle will be supplied with full bobbins automati-
cally as needed. Moveover, as the circuit will be completed before the bobbin is
absolutely denuded of weft, there will be no weft-shot missing in the fabric and no
fault.
Figures 7 and 8 show how the thread from the bobbin is led out through the side
of the bobbin-box; and in Figure 9, y represents thread on the bobbin wound over
the contact spring 20, and holding it out of contact with the collar 18,
While in the magazine the weft-thread from each bobbin-box is led to a point,
and attached thereat.
or
Figure 11 is a view showing another arrangement of the contact spring in the
bobbin. In this case the contact spring, 20, makes contact directly with the bobbin-
box 3, when the bobbin is denuded of filling. Obviously many ways of effecting this
object, namely, the closing of the circuit at the bobbin when the latter is nearly o
wholly denuded would. occur to any one skilled in the art, and this invention is not
limited strictly in that respect. For example, Figure 12 shows a spring contact, 20*,
on the box 3 and adapted to make contact with the collar 18 when the bobbin is
denuded of weft at this point. The free end of the spring 20* bears on the weft on
the bobbin..
carrying the we
weft
By the word bobbin, as herein used, is meant any device for
thread or filling for a shuttle, such as cops, butt-cops, and the like.
22.
In the drawings the carrier 6 is represented as moving through about a quadrant,
but the invention is not limited to this extent of movement of the carrier obviously
it inight move through more or less than a quadrant. This extent of angular move-
ment was chosen merely because it conveniently permits of the magazine being set
in a vertical plane."

page_text: 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
Helaimeisel Majob at bidded ads work el bas & pergit
1
1
1. Weft-supply mechanism for a loom, comprising mechanism for supplying
filled
bobbins to the shuttle as required, and an electric circuit including a generator, a
controlling magnet, and contacts on the Bobbin the shuttle, said contacts being
held out of electric contacts by the weft on the bobbin, whereby when the bobbin is
nearly or quite denuded the controlling circuit will be completed, substantially as
set forth..
:
2. In a loom, the combination with a bobbin-magazine, bobbin-boxes superposed
therein and
nd each containing a bobbin, and a carrier for delivering the bottom box in
the magazine to the shuttle, of the lay, mechanism thereon for operating said bobbin-
carrier when a filled bobbin is required, and electrical means controlling said carrier.
operating mechanism, substantially as set forth.
zine,
3. In a loom, means for automatically supplying weft or filling, comprising a maga
bobbin-boxes superposed in said magazine, bobbins in said boxes, each having
circuit-closing appliances whereby the circuit is automatically closed by removal of
thread from the bobbin, a shuttle open at the bottom and having yielding holders. for
the bobbin-box, a carrier adapted to take the botton bobbin-box from the magazine
and deposit it in the shuttle, electro-magnetic devices, carried by the lay and adapted
to operate said carrier when the circuit is completed at the bobbin, the said circuit,
and a generator for supplying same, substantially as set forth.
In a weft-supply-mechanism-for-looms, the-combination-with-a-shuttle, open
at top and bottom and having yielding-holders,--of-a-bobbin-box-3,-of-thin-stiff
material, adopted to fit-into-said-shuttle-and-be-retained-by-said-holders, substan
tially as set forth.
45. In a weft-supply mechanism for looms, the combination with a stationary, up-
right magazine in which the bobbin-boxes are superposed, the said bobbin-boxes, and
a vibrating carrier, adapted to take the bottom bobbin-box from the magazine and
carry it to the shuttle, said carrier having means for closing the bottom of the maga-
zine during such delivery, constructed substantially as set forth.
21.
5 6. In a weft-supply mechanism, the combination with the shuttle, open through
from top to bottom and provided at its ends with yielding, spring holders 14 and 14*,
the bobbin-box 3, of thin metal, a magazine for the bobbin-boxes, a vibrating carrier
for transferring the bobbin-boxes from the magazine to the shuttle, and electrical
means controlling the operation of said carrier, substantially as set forth.
6.7. In a loom, the combination with the lay, the shuttle-box thereon, and the
shuttle, of the upright magazine, the bobbin-boxes superposed therein, the rocking
carrier 6,, provided with fingers 6 to engage the lower bobbin-box, a curved rack 11, a
closing plate 7, and a retracting spring, the sliding rack 10, gearing with the rack 11,
the magnet M on the lay, its armature lever 9 provided with an armature m, a retract
ing spring, and a toe 9 on said lever, adapted to be moved into position to actuate the
rack 10 when the magnet is excited, and an electric circuit including a generator
and said magnet and adapted to be completed by the denudation of the bobbin in the
shuttle, substantially as set forth.
15
78. In a loom, the combination with the lay, the shuttle-box thereon, a bobbin-
magazine, and a carrier, operated by the lay, to deliver bobbins from the
magazine
to the shuttle, of an electric circuit and mechanism for controlling the operations of
the bobbin-carrier, said circuit having terminals t, t, on the shuttle-box, in
electrical
connection with yielding Folders in
the shuttle,
'bobbin-box 2,-
10-20 1919
the
SLATE the bobbin, having metallo SE PR PL
respectivel
If 1
210
"holders 14 and 14 the
in electrical connection,
out of
with the circuit-terminals, said metallic parts being held forcibly out of
contact by thread wound on the bobbin, substantially as set forth.
80. A bobbin containing metallic parts of an electric circuit adapted to babitually
close together and complete said circuit, one of said parts being in position to be

page_text: overwrapped by the thread on the bobbin and thus held out of contact with the other
part until the pressure from the thread is removed, substantially as set forth.
9 10. The combination with the shuttle, having contact plates and yielding holders
in electrical connection, respectively therewith, of a metallic bobbin-box, and a
bobbin 15, fitting therein, said bobbin having a metallic piece 16, in contact with the
box, a collar 18, electrically connected with the part 16, a metallic piece 19, in contact
with one of the yielding holders in the shuttle, and a contact-spring 20, electrically
connected with the piece 19, and adapted habitually to bear on the collar 18, some
part of said spring 20 being exposed to be overwrapped by the thread wound on the
bobbin and pressed inward out of contact with said collar, substantially as and for the
purposes set forth.
10 . In an electrically controlled weft-supply mechanism for looms, a bobbin
carrying a metallic contact-part forming part of the controlling circuit, and another
contact-part also forming part of the controlling circuit and tending habitually to
form contact with the first-named contact-part, but held out of contact therewith by
the weft thread of the bobbin, substantially as and for the purposes set forth.
As-a-new-article-of-manufacture,-the-bobbin-box-which--holds-the-bobbin
receive-the-bobbin-and-having-an-aperture-in-its-side-for-the-passage--of-the-weft
12.
and-which is adapted to fit-into-the-shuttle, said-box-being-open-at-one--end-to
thread, substantially-as-set-forth.
11 13. As a new article of manufacture, the shuttle having in it electrical contact
plates, 13 and 13*, adapted to connect with circuit terminals on the loom when the
shuttle is in its box, and conductors within it, whereby the circuit may be closed
through a bobbin in the shuttle, substantially as set forth.
12 14. As a new article of manufacture, a bobbin or other carrier for weft, provided
with a part of a metallic electric circuit, said partial circuit having terminals, and
having in it a self-closing break adapted to be held open by the weft wound on the
bobbin, substantially as set forth.

page_text: Reprinted as amended in accordance with the decision of the Comptroller General
dated the 80th day of July 1902
....
The Amendments are shown in erased & italic type.
datauod
follan & Pads
Date of Application, 6th May, 1899-Accepted, 29th July, 1899
"Improvements in and relating to Means for Changing Bobbins
and the like in Shuttles of Looms for Weaving."
We, WILLIAM HENRY BAKER, of Central Falls, in the County of Providence, and
State of Rhode Island, United States of America, Electrician, and FREDERIO
ELLSWORTH KIP of Montclair in the County of Essex and State of New Jersey,
United States of America, Manufacturer, 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 devices employed for automatically supplying
filling or weft to the shuttle of a loom; and it has for its object, partly to employ
electricity for controlling and determining the supply of filling, and partly to provide
simple and efficient mechanical means for carrying out the invention, all as will be
more particularly hereinafter described.
In the accompanying drawings which serve to illustrate an embodiment of the
invention―
Figure 1 is a general view of an ordinary loom provided with the improved weft-
supplying mechanism, the latter being represented in this view on a small scale.
Figures 2, 3, 3, 4 and 5 are views of the weft-supplying mechanism, on a larger
scale; Figure 2 being a rear view, as seen from the right in Fig. 3; Fig. 3 is vertical
section, substantially at line ³ in Fig. 2; Fig. 3ª a fragmentary sectional view at
line similar to Fig. 3, but showing the bobbin-carrier in a different position ;
Fig. 4 a horizontal section taken substantially at line in Fig. 3; and Fig. 5 a
fragmentary face view of the carrier, showing one of the fingers thereon.
Figure 6 is a side view of the shuttle box; and Figures 7 and 8, are, respectively,
a plan and side view of the shuttle, detached. These views are on a larger scale than
the preceding figures.
Figure 9 is a sectional plan, on a large scale, of parts of the shuttle-box, shuttle,
bobbin-box and bobbin, illustrating the electrical connections; and Fig. 10 is an end
view of the bobbin-box and bobbin.
Figures 11 and 12 are views of the bobbin-box and bobbin illustrating modified
forms of the contact devices on the bobbin.
:
Figure 1 is merely an illustrative view, designed to show the position of the weft
supplying device on the loom. F is the loom-frame; L the lay; B the shuttle-box"
thereon; P the pickers; S the shuttle, and W (in Figure 1), the weft-supplying"
mechanism as a whole.
Respecting this latter mechanism, which is best seen in the detail views,-1 is a
strong bracket, mounted on the loom-frame, and 2, is an upright magazine which
holds the hobbins, each enclosed in a bobbin-box 3. The bobbin-boxes rest one on
another, or superposed, in the magazine, and they are taken from the bottom of the

page_text: magazine, one by one, by a rocking carrier and. 'transferred to the shuttle S, the
incoming bobbin-box displacing that already in the shuttle.
Mounted to rock in bearings (4, 4, in Figures 2 and 4) in the bracket 1, is a
shaft.5, on which is fixed the carrier, 6. This carrier is in the form of a frame, of
quadrant shape as seen in Figure 3, and carrying one section, 7, of the semi-
cylindrical enclosing casing, the other section, 7*, thereof, being fixed in position and
connected with the magazine 2. This magazine may be composed, as here shown, of
two like upright end-pieces or keepers, in which the respective ends of the bobbin-
boxes 3 are guided in' their descent, as by gravity, to the point where the rocking
carrier frame 6 takes them.
t
It may be well to explain here that the bobbin-box 3 is of elongated form, of stiff,
thin material, preferably sheet steel, and of such size and proportions as to fit into
the hollow of the shuttle S. Each box 3, has formed in it a mortise or socket, 3*
(Figure 8), near each end thereof, to receive flat carrying pins or fingers, 6ª, on the
frame 6. As the lower bobbin-box descends from the magazine (see Figure 3) it
engages the fingers 6* and is ready to be transferred to the shuttle.
The electrical devices will now be described. On the lay L, is mounted a stout
bracket, 8 (Figures 3 and 3), which supports an electro-magnet, M, and an elbow-
shaped armature lever, 9, carrying the armature m. The upper arm of the lever 9,
has a toe, 9, which when the magnet M is excited and attracts its armature, is pro-
jected upward through an aperture in the horizontal arm of the bracket 8. The
bracket 8 and magnet M move to and fro with the lay, of course, being mounted
thereon.
Mounted to slide in a guideway in the bracket 1, is a rack, 10, which plays directly
over the bracket 8; and gearing with this rack is a circular rack, 11, fixed to the
rocking carrier 6, and concentric with the shaft 5. Now if the electro-magnet M be
not excited when the lay advances in beating up, the toe 9ª will move in under the
rack 10, and the carrier 6 will not be operated; but if the magnet be excited, the
toe 9 will be protruded upward and will impinge upon and take over the end of
the rack 10, thus driving said rack back, and through its engagement with the gear
or curved rack 11, rocking the carrier 6. The carrier moves forward the bobbin-box 3
which is engaged by the fingers thereon (see Figure 3) eventually driving it down into
the shuttle, knocking out or displacing the bobbin-box 3 therein, which latter falls down
through the open shuttle and a slot or aperture in the lay. The shifting or changing
of the bobbin-boxes in the shuttle breaks the circuit, as will be hereinafter explained,
and the armature spring, 9b, withdraws the toe 9". On the return or back movement
of the lay the fingers 6 are withdrawn from the bibbin-box in the shuttle, and the
carrier 6, now free, is returned to its normal position by a suitable spring, 12. It
may be well to state that when the carrier rocks forward to deposit a bobbin-box in
the shuttle, the curved, movable section 7 of the casing moves under the bottom of
the magazine 2 and prevents the descent of the bobbin-boxes therein; but as the
carrier moves back to the position seen in Fig. 3 the magazine is again uncovered
and the lower bobbin-box therein descends and engages the upright fingers 6".
One corner or angle, 3, of the bobbin-box is rounded or cut away so as to permit it
to enter the shuttle readily, and the shuttle is open at its bottom to allow the bobbin-
box to drop down through when displaced.
:
.
I.:
Referring to Figure 6, which shows the shuttle-box on the lay in side elevation,
w represents an electric circuit and G, a generator supplying same.
This circuit may
be arranged in any way, known to electricians. On the shuttle-box are two spring
terminals, t, t, of said electric circuit w, and these terminals are adapted to bear
respectively; on contact-plates,13 and 13x, set in the side of the shuttle S, as best seen
in Figures 6 and 9. In the shuttle, at its respective ends, are mounted elastically
yielding holders for the bobbin-box 3; these hold the box in place by an elastic end-
pressure thereon, but yield and permit it to be knocked out by an incoming box, as
already explained. At the right, in Figure 8, the wooden shuttle is broken away to
show the wedge-shaped, yielding, metal holder, 14, which is electrically connected by a
suitable wire or the like with the contact-plate 13; and in Figure 9, particularly, the

page_text: :
"plate 13 is shown to be electrically connected, in a similar manner with the yielding,
cone-shaped, metal holder, 14, at this end of the shuttle.
Be to
Figures 9 and 10 show the bobbin, 15, in detail. It may be of wood, as usual, and
has at its larger end a flanged, metal ring or collar, 16, which is in contact with. the
metal bobbin-box 3. The box 3 is open at this end and the bobbin is inserted at‘said
opening. The ring 16, is connected electrically by a conductor, 17, with a metal
collar, 18, on the smaller part of the bobbin. Thus it will be seen the collar 18, is
connected electrically with the spring terminal t*, when the shuttle is: in its proper
place in the box B, the connection being through the conductor 17, the ring 16, the
metal of the box 3, and the metal holder 14*.
Within the end of the bobbin (Figures 9 and 10) is set and insulated a metal piece,
block, or ring, 19, coned to receive the holder 14, and to this ring or piece is electri-
cally connected a metallic spring contact piece, 20, which occupies a slot formed in
the hobbin, and its free end takes under or within the collar 18. This contact spring
tends normally to spring outward at its free end into contact with the inner face of
the collar; and as this would connect the collar 18 electrically with the circuit
terminal 13, through the said spring 20, the ring 19, the holder 14, and the plate 13,
obviously the circuit would be closed. But when the filling or weft is wound on the
bobbin, it bears on an exposed portion of the spring 20 and presses the free end
of the latter inward out of contact with the collar 18, thus holding the circuit
open so long as there is sufficient filling on the bobbin to overcome the elasticity
of the spring 20. When, however, the filling is nearly exhausted
the spring 20 will overcome the slight pressure on it and move in the bobbin,
contact with
the collar 18, thus closing the circuit at that point. This may happen when the
shuttle is not in the shuttle-box B; but the instant the shuttle thereafter enters
this box, the spring contact terminals and on the box will be put into contact
with respective plates 13 and 13x on the shuttle and this will complete the circuit
through the electro-magnet M. The effect of the excitation of this magnet in effect-
ing the operation of the carrier 6 has been described.
Thus the attendant will only be required to keep the magazine 2 supplied with the
hobbins in their boxes, and the shuttle will be supplied with full bobbins automati-
cally as needed. Moveover, as the circuit will be completed before the bobbin is
absolutely denuded of weft, there will be no weft-shot missing in the fabric and no
fault.
....!
Figures 7 and 8 show how the thread from the bobbin is led out through the side
of the bobbin-box; and in Figure 9, y represents thread on the bobbin wound over
the contact spring 20, and holding it out of contact with the collar 18.
While in the magazine the weft-thread from each bobbin-box is led to a point 2,
and attached thereat.
Figure 11 is a view showing another arrangement of the contact spring in the
bobbin. In this case the contact spring, 20, makes contact directly with the bobbin'-
box 3, when the bobbin is denuded of filling. Obviously many ways of effecting this
object, namely, the closing of the circuit at the bobbin when the latter is nearly or
wholly denuded would occur to any one skilled in the art, and this invention is not
liinited strictly in that respect. For example, Figure 12 shows a spring contact, 20*,
on the box 3 and adapted to make contact with the collar 18 when the bobbin is
denuded of weft at this point. The free end of the spring 20* bears on the weft on
the bobbin.
By the word bobbin, as herein used, is meant any device for carrying the, weft
thread or filling for a 'shuttle, such as cops, butt-cops, and the like.
In the drawings the carrier 6 is represented as moving through about a quadrant,
but the invention is not limited to this extent of movement of the carrier obviously
it might move through more or less than a quadrant. This extent of angular inove-
ment was chosen merely because it conveniently permits of the magazine being set
in a vertical plane.

page_text: 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 by
Baddod sludg
1. Weft-supply mechanism for a loom, comprising mechanism for supplying filled
bobbins to the shuttle as required, and an electric circuit including a generator, a
'controlling magnet, and contacts on the bobbin in the shuttle, said contacts being
held out of electric contacts by the weft on the bobbin, whereby. when the bobbin is
nearly or quite denuded the controlling circuit will be completed, substantially as
"set forth.
2. In a loom, the combination. with a bobbin-magazine, bobbin-boxes superposed
therein and each containing a bobbin, and a carrier for delivering the bottom box in
the magazine to the shuttle, of.the lay, mechanism thereon for operating said hobbin
carrier when à filled bobbin is required, and electrical means controlling said carrier.
operating mechanism, substantially as set forth,
3. In a loom, means for automatically supplying weft or filling, comprising a maga.
zine, bobbin-boxes superposed in said magazine, bobbins in said boxes, each having
circuit-closing appliances whereby the circuit is automatically closed by removal of
thread from the bobbin, a shuttle open at the bottom and having yielding holders for
the bobbin-box, a carrier adapted to take the bottom bobbin-box from the magazine
and deposit it in the shuttle, electro-magnetic devices, carried by the lay and adapted
to operate said carrier when the circuit is completed at the bobbin, the said circuit,
and a generator for supplying same, substantially as set forth.
4. In a weft supply mechanism-for-looms, the combination-with-a-shuttleropen
at top and bottom and having yielding. holders, of a bobbin-box-3, of thin-stiff
material, adapted-to-fit-into-said-shuttle-und-be-retained-by-said-holders, substan-
tially as set forth
4. In a weft-supply mechanism for looms, the combination with a stationary, up-
right magazine in which the bobbin-boxes are superposed, the said bobbin-boxes, and
a vibrating carrier, adapted to take the bottom bobbin-box from the magazine and
carry it to the shuttle, said carrier having means for closing the bottom of the maga-
zine during such delivery, constructed substantially as set forth.
56. In a weft-supply mechanism, the combination with the shuttle, open through
from top to bottom and provided at its ends with yielding, spring holders 14 and 14*,
the bobbin-box 3, of thin metal, a magazine for the bobbin-boxes, a vibrating carrier
for transferring the bobbin-boxes from the magazine to the shuttle, and electrical
means controlling the operation of said carrier, substantially as set forth.
6. In a loom, the combination with the lay, the shuttle-box thereon, and the
shuttle, of the upright magazine, the bobbin-boxes superposed therein, the rocking
carrier 6, provided with fingers 6* to engage the lower bobbin-box, a curved rack 11, a
closing plate 7, and a retracting spring, the sliding rack 10, gearing with the rack 11,
the magnet M'on the lay, its armature lever 9 provided with an armature m, a retract-
ing spring, and a töe 9 on said lever, adapted to be moved into position to actuate the
rack 10 when the magnet is, excited, and an electric circuit including a generator
and said magnet and adapted to be completed by the denudation of the bobbin in the
shuttle, substantially as set forth.
8. In a loom, the combination with the lay, the shuttle-box thereon, a bobbin
magazine, and a carrier, operated by the lay, to deliver bobbins from the magazine
to the shuttle, of an electric circuit and mechanism for controlling the operations of
the bobbin-carrier, said circuit having terminals t, ts, on the shuttle-box, in electrical
connection with yielding holders in the shuttle, the said holders 14 and 14 tlie
bobbin-box 2, and the bobbin, having metallic parts in electrical connection,
respectively,
with the circuit-terminals, said metallic parts being held, forcibly out of
contact by thread wound on the bobbin, substantially as set forth
2
8.9. A bobbin containing metallic parts of an electric circuit adapted to habitually
close together and complete said circuit, one of said parts being in position to be

page_text: overwrapped by the thread on the bobbin and thus held out of contact with the other
part until the pressure from the thread is removed, substantially as set forth.
9 10. The combination with the shuttle, having contact plates and yielding holders
in electrical connection, respectively therewith, of a metallic bobbin-box, and a
bobbin 15, fitting therein, said bobbin having a metallic piece 16, in contact with the
box, a collar 18, electrically connected with the part 16, a metallic piece 19, in contact
with one of the yielding holders in the shuttle, and a contact-spring 20, electrically
connected with the piece 19, and adapted habitually to bear on the collar 18, some
part of said spring 20 being exposed to be overwrapped by the thread wound on the
bobbin and pressed inward out of contact with said collar, substantially as and for the
purposes set forth.
10 H. In an electrically controlled weft-supply mechanism for looms, a bobbin
carrying a metallic contact-part forming part of the controlling circuit, and another
contact-part also forming part of the controlling circuit and tending habitually to
form contact with the first-named contact-part, but held out of contact therewith by
the weft thread of the bobbin, substantially as and for the purposes set forth.
12. As-a-new-article--of-manufacture, the--bobbin-box-which--holds-the-bobbin
and-which is adapted to fit-into-the-shuttle, said--box-being-open-at-one--end-to
receive-the-bobbin-and having-an-aperture-in-its-side-for-the passage-of the-weft
thread, substantially-as-set-forth.
11 13. As a new article of manufacture, the shuttle having in it electrical contact
plates, 13 and 13*, adapted to connect with circuit terminals on the loom when the
shuttle is in its box, and conductors within it, whereby the circuit may be closed
through a bobbin in the shuttle, substantially as set forth.
12 14. As a new article of manufacture, a bobbin or other carrier for weft, provided
with a part of a metallic electric circuit, said partial circuit having terminals, and
having in it a self-closing break adapted to be held open by the weft wound on the
bobbin, substantially as set forth.
1
1
30
1000
.
WM, P. THOMPSON & Co.
Of 6, Lord Street, Liverpool Agents for the Applicants.