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IS0
I N T E R NAT1 O N AL O R GAN I ZATl O N F O R STAN DAR D I Z AT1 O N
IS0 RECOMMENDATION
'.-
R 441
DROP WIRES FOR MECHANICAL AND ELECTRICAL
WARP STOP MOTIONS
1st EDITION
July 1965
i
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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BRIEF HISTORY
The IS0 Recommendation R 441, Drop Wires for Mechanical and Electrical Warp Stop
Motions, was drawn up by Technical Committee ISOITC 72, Textile Machinery and Accessories,
the Secretariat of which is held by the Association Suisse de Normalisation (SNV).
Work on this question by the Technical Committee began in 1950 and led in 1956, to the
adoption of two Draft IS0 Recommendations.
These first Draft IS0 Recommendations (Nos. 127 and 128) were circulated to all the IS0
Member Bodies for enquiry, in Septembre 1956. As the results of this consultation were not
considered satisfactory, the Technical Committee presented two second Draft IS0 Recommenda-
tions, which were circulated to all the IS0 Member Bodies in September 1963, and which were
approved by the following Member Bodies:
- for Draft IS0 Recommendation No. 127:
Argentina Greece Poland
Brazil Hungary Spain
Colombia Italy Switzerland
Czechoslovakia Korea (Rep. of) United Kingdom
France Netherlands Turkey
Germ an y New Zealand
Two Member Bodies opposed the approval of the second Draft:
India
U.S.S.R.
- for Draft IS0 Recommendation No. 128:
Brazil Hungary Poland
Colombia India Spain
Czechoslovakia Italy Switzerland
France Korea (Rep. of) United Kingdom
Germany Netherlands Turkey
Greece New Zealand
One Member Body opposed the approval of the second Draft: U.S.S.R.
These two Draft IS0 Recommendations were then submitted by correspondence to the
IS0 Council, which decided, in July 1965, to accept them as an IS0 RECOMMENDATION.
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ISO/R 441 - 1965 (E)
IS0 Recommendation R 441 July 1965
DROP WIRES FOR MECHANICAL AND ELECTRICAL
WARP STOP MOTIONS
1. DROP WIRES FOR MECHANICAL WARP STOP MOTIONS
a-
-
-
Open-end type
Closed-end type -
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e
e
-m -m e-
-
0
Length of
drop Length I Width I Thickness Position and dimensions of upper slot Yarn eye Lower
upper part 1 slot
wires
@ d** I b, min.
- ~ -
mrn in
in in mm in nm in 1 mm I in
- - - - -
3/~e 1.75 max 0.9
~ ~____
. -~
,1871
1.1
0.207 5.25
1.882 or
s/16 4.75
dosed to
1.7
end 5.039 to to
1.7-
1.203
5.16 ~
or -t0.020) '6 50.51 2.5
or
___
!.O63 52
2.48
13/e4 3.3
to to 3 *o.
*O.Olî
!.125 53.5
i.75mar '4 *0.2 0.9
3/18
+0.008
-. __
...