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Патент USA US2085716

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June 29, 1937.
2,085,716
J. KILLARS, JR
vFiled Nov. 23, 1936
2 Sheets-Sheet 1 ‘
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I
INVENTOR.
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ATTORNEY.
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June 29,- 1937.
2,085,716
.1. KILLARS. JR
FILLING FEELERVMECHANISM
2 Sheets-Sheet 2
Filed Nov. 213, 1936
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INVENTOR.
\ L/aH/V n74 LABS, JR.
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ATTORNEY.
Patented June 29, 1937
2,085,716
UNITED STATES PATENT (Fries! {
FILLING FEELER MECHANISM
John Killars, Jn, Greenville, S. 0., assignor _to'
Draper Corporation, Hopedale, Mass, a corpo
ration of Maine
Application November 23, 1936, Serial No. 112,227
(Cl.v 139-4582)
8 Claims.
The present invention pertains to feeler mecha
nisms for shuttle looms ‘and more particularly to
such mechanisms of the so-called. side slipping
5
type.
Feeler mechanisms of the type mentioned com
monly include a feeler stand and a feeler blade
mounted on the stand for movements forwardly
in the usual manner.
supply. The present invention contemplates
provision of a feeler mechanism of the type men
tioned, wherein a rigid feeler blade is slidably
mounted directly on the feeler stand and a spring,
-15 preferably a spirally wound; spring of the clock
type, is positioned at one side of the feeler blade
and entirely in the horizontal plane thereof. The
spring has one end ?xed to the feeler stand and
the other end ?xed to the feeler blade with the
20 spring under lateral bending stress in a direction
to resist both the forward movement and the side
slipping movement of the feeler blade. The
spring positioned entirely in the plane of the
feeler blade is, as will be shown, superior to a
.25 prior proposed construction wherein a helically
coiled torsion spring was provided withan in
tegral arm constituting a non-rigid feeler blade
vertically off-set relative to the spring. The
present construction further provides a very sim
p39 ple feeler mechanism with only one‘spring, which
spring may be readily adjusted to provide proper
feeler
action.’
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' -The preferred embodiment of the invention is
shown-on the accompanying drawings, of which:
Fig; 1 is a perspective view of the feeler mech
anism andjcertain- loom parts;
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Fig. 2 is a plan view illustrating the action of
the feeler mechanismwhen the lay is forward
and a supply of ?lling present on the ?lling
carrier;
.
>
- Fig. 3 is a plan view illustrating the action of
the feeler mechanism when the ?lling supply be
comes substantially exhausted; and
, 5,0
are not shown or described. vIt will be under
stood, however, that the lay is reciprocated to
ward and from the front of the loom and that
and rearwardly when ample ?lling supply is pres
ent in the shuttle, and for side slipping movement
10 to indicate substantial exhaustion of the ?lling
.40
and other component mechanisms ‘of the loom
- "
the shuttle is picked from side to side of the loom
'
'
. The feeler mechanism, being of the side slip
ping type, includes a feeler blade 4 which is posi
tioned horizontally in front of the shuttle box 2
and is provided at its rearward end with a tip 5. 10
The tip 5 enters a slot 6 in the front wall of
the shuttle and by contact with the ?lling supply
F prevents the feeler blade from moving laterally
when such ?lling supply is present in the shuttle.
At such times, the feeler blade ‘will be moved bod 15
ily forward, substantially in a straight line. After
the ?lling supply becomes substantially exhaust
ed, the tip 5,-upon1encountering the ?lling car
rier, will slip sidewise,'which is in a direction
longitudinally of the ?lling carrier and shuttle, 20
as shown by Fig.3. The side slipping movement
of the feeler blade is ‘an indication of substantial
exhaustion of the ?lling supply, which movement
results in operation of a control, such as wire ‘I,
for initiating ?lling rep-lenishment.- The feeler I
blade is rigid; in the sense-that it does not ?ex
or bend in its operation.
4
.
-
The feeler blade 4 is supported on a stand 8
which is adapted to be ?xed to the loom in the
usual manner.
The stand 8. has a guideway
which maybe de?ned by ?xed stop lugs such as
the lugs 9, l0, and“. vThe lugs 9 and lil are
spaced apart in the direction, of the side slipping
movement of the feeler blade and are on oppo
site sides of the feeleribladep The stop lug II is
.positioned forwardly from the lug l0 and on the
same side of the feeler blade. The guideway as
thus de?ned lies in the horizontal plane of move
ment of the feeler blade, which blade is loosely
mounted directly in the guideway. The stops 9 40
and l I determine the normal erect position of the
feeler blade, while the stop I I also constitutes
the‘ fulcrum about which the feeler blade turns
~ Fig. 4 is a View in cross-section taken approxi
in its’ side slipping movement.
mately on line 4—4 of Fig. 3.
may be covered over, as by a plate‘ l2 removably _
_
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The guideway
The drawings showla part of a conventional
reciprocating lay‘ ‘I having a'shuttle box 2-for
secured to the’ stand by screws l3, I3 as shown
receiving a shuttle 3. The shuttle contains va
supply of filling F on a ?lling carrier which is
The invention provides a single spring, posi
tioned at one side of the feeler'blade and entirely
in the plane of its movement, which spring is
on Figs. 1 and'4.
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automatically replaced by a fresh ?lling carrier
whenever the ?lling supply becomes substantially
exhausted. Inasmuch as the present invention
is concerned only with the feeler mechanism, for
detecting and, indicating ‘substantial exhaustion
under lateral bending stress in- a direction to
yieldingly resist both the forward movement and
the side slipping movement of the feeler blade.
Preferably, this spring constitutes the sole means
of the?llingisupply, the replenishing mechanism
for resisting said movements of the feeler blade.
2.
2,085,716
The spring I4 shown on the drawings is formed
from spring steel, preferably of rectangular cross
section, and is wound into a generally spiral
form, as distinguished from a helix. This spring
is thus of the clock type.
The spring I4 is positioned on the side of the
feeler blade 4 opposite to the side on which the
stop I I is located. In the form shown on the
drawings, the stand 8 is provided with a concavity
de?ned by an arcuate wall I5. This concavity
opens laterally in a direction toward the feeler
blade and the spring I4 is entirely housed within
the concavity except for the integral projecting
arm IS. The outer end of the spring, or of the
15 arm I6 thereof, is secured to the forward end of
the feeler blade at a point forwardly from the
stop I I. This end of the spring may be so secured
by being wrapped around a T-shaped head II on
the feeler blade as shown at I8. The inner end
of the spring is ?xed to the feeler stand within
the concavity de?ned by wall I5.
The inner end of the spring I4, in the form
shown on the drawings, is ?xed to the feeler
stand by being bent and inserted in a slot in a
25 stud II.‘ which is secured to the feeler stand by
a screw 20. The stud I9 has a hollow cylindrical
body and the screw passes loosely through the
stud and is threaded into the ?oor of the con
cavity. The stud IS also may have a radially
projecting arm 2I which extends over the top of
the wall I5, to serve as. a handle for rotating the
Having fully disclosed the preferred embodi
ment of my invention, I claim:
1. In a feeler mechanism for shuttle looms, a
feeler stand, a rigid feeler blade mounted directly
on said stand for sliding movements forwardly
and rearwardly and for side slipping movement
to indicate substantial exhaustion of the ?lling
supply in the shuttle, said stand having stop
means determining the normal erect position of
said feeler blade, a spirally wound spring posi 10
tioned at one side of said feeler blade entirely in
the plane of movement of the latter, the outer
end of said spring being ?xed to said feeler blade,
and means for ?xing the inner end of said spring
to said stand with the spring under lateral bend 15
ing stress in a direction to yieldingly resist both
said forward sliding movement and said side
slipping movement of said feeler blade.
2. In a feeler mechanism for shuttle looms, a
feeler stand, a rigid feeler blade mounted directly
on said stand for sliding movements forwardly
and rearwardly and for side slipping movement to
indicate substantial exhaustion of the ?lling sup
ply in the shuttle, said stand having a concavity
located atone side of said feeler blade in the
plane of movement of the latter, a spring housed
within said concavity and having an integral pro
jecting arm ?xed to said feeler blade, and means
for ?xing the other end of said spring to said
stand with the spring underlateral bending stress 30
in a direction to yieldingly resist both said for
stud and also as a visible indication of the rota
ward sliding movement and said side slipping
tive position of the stud. The screw 20 is
loosened and the stud I9 rotated to place the
movement of said feeler blade.
3. In a feeler mechanism for shuttle looms, a
feeler stand, a rigid feeler blade mounted directly 35
spring I4 under proper bending stress, whereupon
the screw is tightened to ?x the stud, and thereby
the inner endrof the spring, to the feeler stand.
The spring I4 is under bending stress in a direc
tion to urge the feeler blade 4 rearwardly and
also to urge the forward portion of the feeler
blade laterally against the fulcrum stop I I. When
the feeler is idle, the spring I4 will hold the
feeler blade in a rearward position determined
by engagement of the head IT with the lug I I or
45 the cover plate I2, or both. ,At such time, the
spring will also hold the feeler blade rotated
counter clockwise to a position determined'by en
gagement of the feeler blade with the stop lug 9.
This position of the feeler blade is its normal erect
position, and the position which it occupies when
the tip 5 enters the shuttle to determine the con
dition of the ?lling supply therein.
,
When, on a. detecting beat of the lay, the feeler
tip contacts an ample supply of ?lling in the
55 shuttle, the feeler blade 4 will be moved bodily
forward to the position shown by Fig. 2. After
the ?lling supply becomes substantially ex
hausted, contact of the tip 5-with the bare ?lling
carrier will result in the tip slipping along the
60 ?lling carrier as shown by Fig. 3. It will be ap
parent that neither of such movements of the
feeler blade requires any very great movement
of the spring, wherefore'the spring may operate
a very long time without breaking. It will fur
65 ther be apparent that since the spring is en
tirely in the plane of movement of the feeler blade,
it being a spirally wound spring as distinguished
from a helical torsion spring, it has no tendency to
70 twist the feeler blade out of proper operative rela
tion to the ?lling carrier. In, fact, the construc
tion is such that the spring resists any tendency
of the feeler blade and tip to twist or move out
of the horizontal plane in which it is intended to
75 operate.
on said stand for sliding movements forwardly
and rearwardly and for side slipping movement
to indicate substantial exhaustion of the ?lling
supply in the shuttle, said stand having a con
cavity located at one side of said feeler blade in 40
the plane of movement of the latter, a spirally
wound spring housed within said concavity and
positioned entirely in said plane, said spring hav
ing an integral projecting arm ?xed to said feeler
blade, and means for ?xing the inner end of said 45
spring in said concavity with the spring stressed
in a direction to yieldingly resist both said for
ward sliding movement and said side slipping
movement of said feeler blade.
4. In a feeler mechanism for shuttle looms, a 50
feeler stand having a guideway and a concavity
formed therein in substantially the same hori
zontal plane, a rigid feeler blade loosely mounted
in said guideway for sliding movements for
wardly and rearwardly and for side slipping 55
movement to indicate substantial exhaustion of
the ?lling supply in the shuttle, a clock-type
spring housed within said concavity, said spring
having an integral arm projecting laterally to
ward and ?xed to said feeler blade, and means
for ?xing the inner end of said spring to said
stand with the spring stressed in a direction to
yieldingly resist both said forward sliding move
ment and said slide slipping movement of said
feeler blade.
65
5. In a feeler mechanism for shuttle looms, a
feeler'stand, a rigid feeler blade mounted di
rectly on said stand for sliding movements for
wardly and rearwardly and for side slipping
movement to indicate substantial exhaustion of 70
the ?lling supply in the shuttle, said stand hav
ing ?xed stop lugs determining the normal erect
position of said feeler blade, and a clock-type
spring positioned beside said feeler blade in the
horizontal plane thereof, the outer end of said 75
2,085,716
spring being ?xed to said feeler blade and the
inner end thereof being ?xed to said stand with
the spring under lateral bending stress in a direc
tion to yieldingly resist both said forward sliding
movement and said side slipping movement of
said feeler blade, said spring constituting the
sole means for resisting said movements of the
feeler blade.
6. In a feeler mechanism for shuttle looms; a
10 feeler stand having ?xed stops de?ning a guide
way, a rigid feeler blade mounted directly in said
guideway for sliding movements forwardly and
rearwardly and for side slipping movement to in
dicate substantial exhaustion of the ?lling sup
15 ply in the shuttle, one of said stops constituting
a fulcrum about which the feeler blade turns
upon occurrence of said slide slipping movement,
a clock-type spring positioned on the opposite
side of said feeler bladerfrom said fulcrum stop,
20 and means for ?xing the inner end of said spring
to said stand, the outer end of said spring being
?xed to said feeler blade at a point forwardly
from said fulcrum stop and said spring being
under lateral bending stress in a direction to
25 resist both said forward movement and said side
slipping movement of the feeler blade.
- 3
one side of said guideway in the horizontal plane
thereof, a rigid feeler blade, loosely mounted in
said guideway for sliding movements forwardly
and rearwardly and for side slipping movement
to indicate substantial exhaustion of the ?lling 5
supply in the shuttle, and a clock-type spring
housed within said concavity and having its in
ner end ?xed to said stand, the outer end of said '
spring being ?xed to said feeler blade at a point
forwardly from said stops, said spring being 10
under lateral bending stress in a direction to
yieldingly urge said feeler blade rearwardly'and
laterally about one of said stops-as a fulcrum.
8. In a feeler mechanism for shuttle looms, a
feeler stand having a guideway including a ?xed 15
stop, said stand having a concavity positioned at » '
the opposite side of said guideway from said stop,
a rigid feeler blade loosely mounted in said guide
way for sliding movements forwardly and rear
Wardly and side slipping movements about said 20
stop as a fulcrum, and a clock-type spring housed
within said concavity andhaving its inner end
?xed to said stand, said spring having an in
tegral arm at its outer end, said arm being ?xed
to said feeler blade with said spring under stress 25
in a direction to urge said feeler blade rearwardly
7. In a feeler mechanism for shuttle looms, a ' and laterally about said stop in adirection oppo
feeler stand having ?xed stops de?ning a guide
site to said side slipping movement. . I
way, said stand having a concavity positioned at
JOHN KILLARS, JR.
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