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Патент USA US2403548

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July 9, 1946.
B. PLUNKETT
S'ror MOTION
2,403,548
Filed NOV. 25, 1944
INVENTOR.
BRIAN PLUNKETT
ATTO RNEYS
Patented July 9, 1946
2,403,548 .
" UNITED'ST'ATES PATENT OFFlC
2,403,548
"
_ 's'ror MOTION
Brian Plunkett, Cumberland, Md., assignor to Cel
anese Corporation of America, a corporation of
Delaware
' Application November 25, 1944, Serial No. 565,070
10 Claims. (Cl. 66-163)
2
This invention relates to textile machines
wherein yarn is fed thereto in the form of a warp
and wherein there is employed an electrically
operated warp stop motion, and relates more
particularly to an attachment for use with such
machines for closing the circuit of the warp stop
motion, upon breakage of a warp yarn, to halt
. the operation of the machine.
It is an important object of this invention-to
provide a simple and e?lcient device which may
be readily applied to a machine wherein yarn is
fed in the term oi.’ a warp, which will activate the
stop motion oi’ the machine to halt the operation
.
is included in a suitable stop motion circuit (not
shown).
7
l
The pans 9 and H are ?lled with a salt solu
tion or any other suitabl electrolyte. Placed in
the top oi’ the pans and extending the full width
thereof are plugs It made of wood or any other
suitable material and covered with a wick ii.»
The wood plugs It are of such a size that when
pushed into the top of the‘ pans they seal the
same su?lciently to prevent splashing. The
lower portion of. the plugs, indicated by refer
ence numeral l8, aresharply tapered and dipped
for substantial portion thereof into the solution.
of electrolyte. The topsoi plugs It are provided
Other objects of this invention, together with. 15 with longitudinal grooves it which are adapted to
certain details oi’. construction and combinations
be ?lled with solution drawn upby the wicks for
- of the same upon breakageoi' a warp yarn.
-
01’ parts; will appeari'rom the iollowing detailed‘
description.
a purpose hereinafter set forth.
'
' When a warp yam breaks (the broken end
While this invention may be employed with tex
being indicated by dotted line H) and the warp
tile devices where the warp is knitted into a 20 continues to unroll, the broken yarn drops on to
fabric, is sized, printed, dyed, or has any other
the plugs It in the pans 9 and ii, soaking up
textile operation performed thereon, the inven
the electrolyte and completing a. circuit. The
tion will be described in connection with its use ' solution in groove it maintains the top of the
with a warp knitting machine since it is partic
wick i‘l extremely moistso that the broken-yarn
ularly effective therewith.
'
quickly takes up the solution so that the circuit
Figure 1 of the drawing is a diagrammatic view _
showing thev attachment of the present invention,
particularly with relation to the warp of
being operated upon, and
.
Yams
closes very rapidly. The closing of the circuit
operates a switch in switch box it re?ecting con
tact in a relay of the stop motion circuit to shut
o? the warp knitting machine. Itv has been
Figure 2 is a perspective view showing the $6 found that the present device e?ects a stoppage 4
warp oi yarns passing over the device of the in
oi’ the warp knitting machine in from 3 to 5 sec»
stant invention.
_
onds from the time of the yarn break.
Referring now to the drawing. reference nu
It is to- be understood that the foregoing de».
meral I indicates a warp oi yarns which is' fed
tailed description is given merely by way of illus
from the warp beam 2 of a warp knitting ma 35 tration and that many variations may be made
chine, which warp beam is supported on a shaft
I suitably journaled in the warp knitting ma
chine. The shaft 3 is driven by any suitable
means (not shown) .
The warp of yarns is passed
' therein without departing from the spirit of my
invention. -
Having described my invention, what I desire to
secure by Letters Patent is: '
under an idler guide roll 4, is processed (in the 40 1. In a textile device for operating on a trav
present case warp knitted) at i, and the fabric
eling 'warp oi yarns, means Ior stopping the
web or treated web of yarns I‘I is then passed over
an' idler roller 6 and taken up at ‘l on a take-up
roller or shaft 8 driven in any suitable manner
(not shown). Placed underneath the warp i
means in each of said vessels adapted to be in
and extending across the full width of the warp . knitting machine are pans 9 and H which are
contact with said electrolyte and to be wetted
thereby, a switch in a stop motion circuit, and
travel of said warp upon breakage of a yarn
thereof, said means comprising a pair of- vessels
adapted to hold electrolyte, relatively stationary
electrically insulated from each other by suitable
an electrical connection between said vessels and
‘ insulation I! placed between adjacent sides at
said switch, the construction and arrangement
' said'pans. These pans are relatively small being 50 being suchthat a broken yarn upon coming into
contact with said electroly-te-wetted means is
about V2" by 1" in cross-section. Pans 9 and it
are each provided with a copper wire ll
wetted with electrolyte, thus closing the circuit
r 1-1.1.
the“6 full length thereoi', which wires are con
nected by suitable leads I‘ to a switch box, ge ‘ era-ily indicated by reference numeral Ii, whi
operating the switch to effect a closing of the stop
motion circuit and thereby halt'the operaion of
'
the textile device.‘
2,408,648
.
-
3
4,
2. In a textile device, for ope ing on a travel
ing warp of yarns, means for. sto ping the travel
electrolyte, relatively stationary means in each
of said vessels adapted to be in contact with said
of said warp upon breakage of a yarn thereof,
said means comprising a pair 01! vessels adapted
to hold electrolyte, plugs in each of said vessels
adapted to be in contact with said electrolyte and
stop motion circuit,-and an electrical connection
between said vessels and said switch, the con
struction “and arrangement being such that a
electrolyte and to be wetted thereby, a switch in a
, broken yar'n upon coming into contact with said
to be wetted thereby, a switch, in a stop motion
electrolyte-wetted means is wetted with electro
circuit, and an electrical connection between said v
vessels and said switch, the construction and ar
rangement being such that a broken yarn upon 10
coming into contact with said electrolyte-wetted
plugs is wetted with electrolyte, thus closing the "'
circuit operating the switch to e?ect a closing of“?4
the stop motion circuit and thereby halt the oper
ation oi the textile device.
'
3. In a textile device for operating on a travel
ing warp of yarns, means for stopping the travel
of said warp upon breakage of a yarn thereof,
thdreby halt,;the‘ operation of the textile device.
'7. In aitextile device for operating on a travel
ing warp of yarns, means for'stopping the travel
of said warp upon breakage of a yarn thereof,
15 said means comprising a pair of vessels extending
the full width of‘, said warp and adapted to hold
electrolyte, longitudinal plugs having tapered
portions adapted to dip'into said electrolyte and
to be wetted by said electrolyte, a switch in a
stop motion circuit, and an electrical connection.
between said vessels and said switch, the con
struction and arrangement being such that a
said means comprising a pair of vessels adapted
to hold electrolyte, plugs in each of said vessels,
wicks covering said vplugs, said wicks being
adapted to be in- contact with said electrolyte
and being wetted thereby, whereby the electro
lyte is caused to wet the top of the plug, a switch
in a stop motion circuit, and an electrical con
lyte, thus closing the, circuit operating the switch
tol’rei‘fect a closing of ‘the stop motion circuit and
broken yarn upon coming into contact with said
electrolyte-wetted longitudinal plugs is wetted
25
nection between said vessels and said switch, the
construction and arrangement being. such that a
broken yarn upon coming into contact with said '
with electrolyte, thus closing the circuit oper
ating the switch to e?ect a closing of the stop
motion circuit and thereby halt the operation of
the textile device.
.
8. In a textile device for operating on atrav
cling
warp of yarns, means for stopping the
lyte, thus closing the circuit operating the switch 30
travel of said warp upon breakage of a yarn
to effect a closing of the stop motion circuit and
thereof, said means comprising a pair of vessels
thereby halt the operation of the textile device.
extending the full width; of said warp and
4. In a textile device for operating on a trav
adapted to hold electrolyte, longitudinal plugs in
cling warp of yarns, .means for stopping the
each of said vessels, wicks covering said plugs,
travel of said warp upon breakage of a yarn
said plugs havingtapered- portions having a
thereof, said means comprising a pair of vessels
length sui?cient to dip into-.1, said electrolyte
adapted to hold electrolyte, plugs in each of said
electrolyte-wetted wick is wetted with-electro
whereby said wicks are‘ wetted by said electrolyte
vessels, wicks covering said plugs, said wicks
being adapted to be in contact with said electro- .' and cause the top of the plug ‘to be wetted by
lyte and being wetted thereby, whereby the elec .40 capillarity, a switch in a stop motion circuit, and
an electrical connection between» -, said vessels
trolyte is caused to wet the top of the plug, means
and said switch, the construction and arrange
in said plug adapted to receive and retain a
ment being such that a broken yarn upon coming
supply of electrolyte, a switch in a stop motion
into
contact with said electrolyte-wetted wick
circuit, and an electrical connection between said
‘vessels and said switch, the construction and ar 45 on said longitudinal plugs is wetted with electro
lyte, thus closing the circuit operating the switch
rangement being such that a broken yarn upon
to eiTect a closing of the stop motion circuit and
coming into contact with said electrolyte-wetted
thereby halt 'the operation of the textile device.
wick is wetted with electrolyte, thus closing the
a 9. In a textile device for operating on a trav
circuit operating the switch to effect a closing
of the stop motion circuitnnd thereby halt the 50 eling warp of yarns, means for stopping the
operation of the textile device.
'
5. In a textile device for operating'on a trav- '
travel of said warp upon breakage of a yarn
thereof, saidmeans comprising a pair of vessels
extending the full width of said warp and
adapted to hold electrolyte, longitudinalplugs in
travel of said warp upon breakage of a yarn
thereof, said means comprising a pair of vessels 55 each of said’ vessels, wicks covering said plugs,
cling warp of yarns, means for stopping the
adapted to hold electrolyte, plugs in each of said
vessels, wicks covering said plugs, said wicks
said plugs having tapered portions having a
length su?‘lcient to dip into said electrolyte
whereby said wicks are wetted by said electrolyte
being adapted to be in contact with said electro
and cause the top of the plug to be wetted by
lyte and being wetted thereby, whereby the elec
trolyte is caused to wet the top of the plug, a 60 capillarity, means in said plug adapted to receive a
and retain a supply of electrolyte, a switch in a.
groove in said plug adapted to receive and retain
stop motion circuit, and an electrical connection
a supply of electrolyte, a switch in a stop motion
between said vessels and said switch, the con
circuit, and an electrical connection between said
struction and arrangementbeing such that a
vessels and said switch, the construction and ar
broken yarn upon coming into contact with said
rangement being such that a broken yarn upon
electrolyte-wetted wick on said longitudinal
coming into contact with said electrolyterwetted
plugs is wetted with electrolyte, thus closing the
wick is wetted with electrolyte, thus closing the
circuit operating the switch to effect a closing
circuit operating the switch to effect a closing
of the stop motion circuit and thereby halt the
of the stop motion circuit and thereby halt the
>
operation of the textile device.
,
~
.
70 operation of the textile device.
10. In a textile device for operation ‘on a
6. In a textile device for operating on a trav
traveling warp of yarns, means for stopping the
eling warp of yarns, means for stopping the travel
travel of said warp upon breakage of a yarn
of said warp upon breakage of a yarn thereof,
thereof, said means comprising a pair of vessels
said means comprising a pair of vessels extending
extending the full width of said warp and
the full width of said warp and adapted to hold ' 75
2,408,548
adapted to hold electrolyte, longitudinal'plugs in
nection between said vvessels and said switch, the
construction and arrangement being that a
each of said vessels, wicks covering said plugs,
said .plugs having tapered portions having a
length su?icient to dip into said electrolyte
broken yarn upon coming into contact with said
electrolyte-wetted wick on said longitudinal
whereby‘ said wicks are wetted by said electrolyte
' plugs is wetted with electrolyte, thus closing the
and cause the top of the plug to be wetted by
capillarity, a groove in said plug adapted to re
circuit operating the switch to effect a closing
of the stop motion circuit and thereby halt the
operation of the textile device.
ceive and retain a supply of electrolyte, a switch
in a stop motion circuit, andan electrical con
'
BRIAN PLUNKE'I'I‘.
‘
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