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Патент USA US3077915

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Feb. 19, 1963
Filed April 17, 1961
United States
Patented Feb. 19, 1963
Elliott L. Remington, Hopkinton, Mass, assignor to
Draper Corporation, Hopedale, Mass, a corporation
of Maine
Filed Apr. 17, 1961, Ser. No. 103,301
5 Claims. (Cl. 139-122)
vided with a formed opening at its lower aft portion and
the internal structure conforms generally to the contour
of a wedge shaped thrust block which forms the free end
of the carrier inserting member or ?exible tape. The
thrust block is adapted to be received by the formed open
ing and by any suitable anchoring means such, for ex
ample, as a cap screw positioned within the carrier and
whose threaded portion protrudes into the formed open
ing and thence into a tapped hole located on the forward
This invention pertains to improvements in ?lling car
riers for use in shuttleless looms, that is, looms of the 10 surface and centerline axis of said thrust block, the carrier
type in which the ?lling is supplied from ‘a source outside , is securely locked in operating position.
Positioning of the carrier is accomplished by tightening
of the shuttle or ?lling inserting means itself.
the cap screw which in turn causes the carrier to be drawn
It is a general object of the invention to provide a novel
rearwardly with respect to the thrust block to a point
?lling carrier that is separable from the carrier inserting
15 where the conforming surfaces of these two members
are wedged together forming a single operating unit.
The invention will hereinafter be described in greater
detail by reference to the accompanying ?gures of drarw
ference with the warp threads between which it passes
ing in which:
and with the ?lling yarn being inserted.
FIG. 1 is a plan view partially in section of a ?lling
It is a more speci?c object of the invention to provide 20
carrier to which the invention has been applied;
a detachable ?lling carrier that is easily removed from
It is a further object of the invention to devise a de- _
tachable carrier which shall be guarded against inter—
or assembled to the carrier inserting member while on
the loom, thus eliminating the necessary and excessive
FIG. 2 is a view similar to that of FIG. 1 except shown
in side elevation;
FIG. 3 is a side elevation of the wedge shaped thrust
25 block to which the ?lling carrier assembles;
conventional design.
FIG. 4 is an end view of the wedge shaped thrust block
Further objects will become apparent from the fol
time element involved for replacing ?lling carriers of
lowing disclosure.
'_ In so-called shuttleless looms, that is, those looms in
shown in FIG. 3;
FIG. 5 is a bottom view of that portion of the carrier
to which the invention relates and by means of dotted
carried to and fro through the shed by the shuttle orcarrier 30 lines illustrates the method employed for attaching it to
the ?exible tape;
itself, it is common practice to introduce each pick of
FIG. 6 is a sectional view taken along line 6--6 of
?lling by two reciprocating members, one of which will
which ?lling is supplied from an outside source and is not
hereinafter be referred to as an inserter or inserting
member and the other of which receives or has trans
FIG. 2.
Now referring to the ?gures of drawing, in ,FIGS. 1
fer-red to it that loop of ?lling projected into the shed by 35 and 5 there is shown at 10 a' ?exible tape or carrier in
serting member which is preferably used to reciprocate
the inserting member will hereinafter be referred to as
the thread inserting carrier generally indicated by the
a ?lling receiving or ?lling extending carrier.
numeral 11. The forward portion of the carrier or that
The ?lling extending carrierv is usually provided with
part which projects a loop of ?lling-part way through the
a hooked element by which the ?lling is seized and
trapped and through which the ?lling is allowed to move 40 shed is of a box-like structure and includes a notch 12
in the top planar portion and a notch 13 in the lower
endwise so that the function of the carrier to which the
surface which cooperates therewith. This portion of the
loop of ?lling is transferred is that of drawing through or
inserting carrier forms no part of the present invention;
extending an end which will have been severed to a pre
however, reference to United States Patent No. 2,928,427
determined length to complete the pick.
will give a more complete understanding of its intended
In looms of the type described above a great deal of
time is required to remove and replace ?lling carriers
. The lower rearward portion of the carrier 14 is pro
vided with a formed opening 15 the internal structure of
made to a preferred type of carrier for a particular fabric
when changing from one style fabric to another. A 50 which conforms for the most part to the form of a wedge
shaped thrust block indicated generally by numeral 16.
change of this nature with carriers of the prior art such
Thrust block re is attached by brazing or in any other
as those in United States Patents Nos. 2,586,638 and
satisfactory manner to tape 10 and is adapted to assemble
2,705,508 necessitate removal of the carrier reciprocating
within the formed opening 15 of the carrier 11 itself.
member or ?exible tape along with the carrier itself
which forms an integral part thereof. Should such a 55 Within the carrier and forwardly of opening 15 there is
carrier be removed as a result of wear or breakage, a
provided a wall or bulk head 17 of sufficient thickness to
new carrier is required plus the added cost of a new tape
accommodate the head and shank portion of a cap screw
or the expense of removing the old tape and providing a
1.8 in a counterbored through hole 19 disposed horizon
new carrier thereon. The novel characteristic of the in
tally along the centerline axis of said bulk head 17. The
stant invention concerns itself particularly with the in 60 thrust block 16 has a forward vertical surface 20 in
which have become worn or where changes are to be
serting member whose novel features permit this carrier
to be disassembled from the free end of the ?exible tape
or assembled thereto without removing other parts from
the loom which could affect important gauged settings.
which there is provided a horizontally disposed bottom
tapped hole 21 which presents itself in mating relationship
with the counterbored through hole 19 upon positioning
the carrier on the thrust block lti. Assembly of these
The actual means by which carriers herein described 65 two members is then accomplished by turning the threaded
function with regards to the method of projecting them
portion of cap screw 18 into the threads of the tapped
into the shed and transferring the ?lling from one car
hole 21. Tightening of this screw causes the head portion
rier to the other forms no part of the present invention;
of said screw to seat itself in the counterbore of the
however, to give a more complete understanding of these
through hole 19 which in turn causes the carrier to be
particular functions reference is hereby made to the dis
drawn rearwardly with respect to thrust block 16 to a
closure of United States Patent No. 2,705,508.
point where the wedge shaped surfaces 22 and 23 of said
According to the invention the inserting carrier is pro
thrust block meet the mating or matching wedge surfaces
24 and 25 within the formed opening 15.
In operation, this carrier enters the warp shed to pre
sent a loop of ?lling to a companion carrier which in turn
extends said ?lling loop through the remainder of the
shed in a manner well known to those farniliar with the
art. It enters the med and is withdrawn therefrom free
from interference with warp threads.
As the carrier
enters the shed the lower warp threads are caused to be
modi?cations thereof falling within the spirit of the in
vention and the scope of the claims.
I claim:
1. For a loom having reciprocable carriers by ‘which
?lling from an outside source of supply is placed within
sheds formed by warp threads, a ?lling carrier and a
carrier inserting member, a carrier holding element form
ing the tip of the free end of said carrier inserting mem
ber, said ?lling carrier being detachably mounted to said
carnmed downwardly by surface 26‘ that forms the lower 10 carrier holding element.
front surface of the thrust block 16. Surface 26 projects
2. The structure of claim 1 wherein said carrier holding
forwardly and is positioned within a recess 27 that forms
element is formed in the shape of a wedgedike thrust
the forward end of opening 15. The lower warp threads
block, said ?lling carrier being provided with a formed
therefore are cammed downwardly from the lower sur
face of the carrier itself when it enters the shed eliminating
the possibility of yarn interference at that point. The
upper surface of the carrier gradually tapers downwardly
opening whose internal structure conforms to the con
tour of said thrust block, said thrust block being adapted
to be received by said formed opening, and a means pro
vided therein for anchoring said ?lling carrier to said
at its trailing end as at 27' blending with the aft portion
thrust block.
of thrust block 16 whose upper surface also tapers down
3. The structure of claim 2 wherein said anchoring
wardly as at 28 to a point where it blends into the ?exible 20 means includes a threaded bolt construction for locking
tape 16 to which it is attached. Member 26 at its trailing
said ?lling carrier and said thrust block together as a unit.
end presents another thread de?ecting surface 29' which
4. The structure of claim 1 wherein said carrier and
protrudes below tape 10 and extends fouwardly to blend
said carrier holding element are provided with thread
into surface 26. Thus the combination of the tape, thrust
de?ecting surfaces for preventing interference with said
block and carrier assembled in the manner described and 25 warp threads as said carrier is inserted into said shed and
with the various yarn de?ecting surfaces outlined above,
eliminates all possibilities of interference with either the
warp threads or the ?lling yarn being inserted. As the
carrier is being withdrawn from the closing shed the upper
warp threads are caused to be cammed up on surface 28
and thence onto surface 27'. Likewise the lower warp
threads are caused to be carnmed downwardly by surface
29 and pass along this lower portion to surface 26 whereat
they are received by the thread de?ecting surfaces 3%‘ and
31 which extend rearwardly from recess 27 and conform
generally to the inwardly tapered end 32 of the ?exible
tape 16.
The invention has been described in more or less speci?c
terms and by reference to its application to a particular
withdrawn, therefrom.
5. For a loom having reciprocable carriers mounted
on flexible tapes by which ?lling from an outside source
of supply is inserted within sheds formed by warp threads,
a detachable ?lling extending carrier adapted to insert a
loop of ?lling part way through a warp shed which in
cludes a ?rst member comprising front and rear side por
tions, notched upper. and lower portions, said notched
lower portion being provided at its trailing end with a
formed aperture, a second member forming a thrust block
integral with the free end of said flexible tape, said thrust
block adapted to be received by said formed aperture
and a means provided within said two members for
locking said second member within the con?nes of
type of shuttleless loom. It is to be understood, however, 40 said formed aperture in said ?rst member.
that these looms take varying forms and instead of ?exible
tapes the carriers may be reciprocated by relatively stiff
and straight elements such as needles and the actual car
riers themselves and the ?lling handling devices may be
drastically modi?ed so long as the general principles of 45
operation remain the same.
While one embodiment of the invention has been dis
closed, it is to be understood that the inventive concept
may be carried out in a number of ways. This invention
is, therefore, not to be limited to the precise details de 50
scribed, but is intended to embrace all variations and
References Cited in the ?le of this patent
Ashton ______________ __ June it}, 1930
France ______________ __ Apr. 16, 1928
Germany _____________ __ Apr. 27, 1929
Great Britain __________ __ May 5, 1932
Great Britain ___________ "July 9, 1945
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