(UNTITLED)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00810A000600650009-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: January 12, 2017
• Sequence Number: 9
• Content Type: REPORT

Approved For Release 2006/11/15: CIA-RDP80-0081OA000600650009-4
CENTRAL INT.E.LLI-GENCE AGENCY
INFORMATION REPORT
COUNTRY Czechoslovakia
SUBJECT Experimental Production of Silon
String and Artificial Horsehair
This Document contains information affecting the Na-
tional Defense of the United States, within the mean-
ing of Title 18, Sections 793 and 794, of the U.S. Code, as
amended. Its transmission or revelation of its contents
to or receipt by an unauthorized person is prohibited
by law. The reproduction of this form is prohibited.
REPORT I
DATE DISTR.
NO. OF PAGES
REQUIREMENT NO.
REFERENCES
THE SOURCE EVALUATIONS IN THIS REPORT ARE DEFINITIVE.
THE APPRAISAL OF CONTENT IS TENTATIVE.
(FOR KEY SEE REVERSE)
1. Trial production of silon strings and artificial horsehair has been set up at the
Institute for Chemical Research on-Polyamides (Ustav pro chemicky vyzkumpolyamidu)
in Gottwaldov,
2. Laboratory work on production of silon string and artificial horsehair was begun
under the direction of Eng. (fnu) Moravec in 1949. Small-scale trial production with
one polymerization chamber in operation started in 1951. Caprolactam, the raw
material for silon production., was prepared in the same m er as for production of
silon fiber. Production equipment /Shown in Encls. A and L3/ consisted of the follow-
ing items: a polymerization chamber, a spinning machine, an ageing chamber, and a
device for stretching the material, called a stretching stand (protahovaci stolice).
3. The polymerization chamber was similar to that used in silon
fiber production, but its a uminum inner par s measuring 2.135 mm, in length, was
two times longer. This inner part 50 liters, For production of
artificial horsehair the nozzle was a 75 mm, long pipe with a
0.8 mm, wide opening and final diameter of'0,35 to 0,45 mm, For the production of
string the pipe had a 3,5 mm,,wide opening and final diameter of 1.4 to 1.7 mm.
The chamber consumed, 3.5 ? 4 kw, of electric power per hour.
STATE TX ARMY
SECRET
NAVY X AIR X J FBI AEC
26 March 1953
25X1 \,ln
(Note: Washington Distribution Indicated By "X"; Field Distribution By " #".)
Approved For Release 2006/11/15: CIA-RDP80-0081 OA000600650009-4
 Approved For Release 2006/11/15: CIA-RDP80-0081OA00060095 9-4
SECRET/'SECURITY INFORMATION
-2-
t' i which had a temperature of 26000 (500?F),
was a hollow cylinder with an outer diameter o ,
A%d--A .6- a tirai7 n, K74 M&
spune
water where it was wooled and
between the nozzle unu e water level was 50 to 75 mm. The vess
f 1 000 mm nr%A an. I~'f
The horsehair, or s sr "bp
fell out of the nozzle lay gravity into a vessel filled' Keith warm
The diets e
teal- vi v..rv -., ~..?_ _. _ ___ _ thrOUghQ
U was driven by a
i
i
fatigued dur ng sp nn Ma
mounted on wheels so that it could be rolled off from below the poly-.
-merization chamber for removal of the spun rings of material, and
so that another machine could be substituted.
The spun rims were put in the agein925X1
.6 -1-6 M%-- -a4-g%-"4a1
~-qRm ,0-7-one
GUT,
i in The spinning machine as.a whole was
The revolving spew
er minute - to prevent the material from bei1
o
wh
gear ox of the German type "PIVr'
e e"'" shall' -
was su
Tthe his procedure resem stretching of a wire. The strings
were put in.a vessel similar to the cooling 25X1.
and spinning vessel. This vessel was also filled with water and
.could revolve freely. The end of the stria a or horsehair', was
threaded through a calibrated drawing eye i2 X1
mhAn the material was led over,a set of two cylinders, one or w e
provided with a left- urnina ve was
-fixed to the pro ru ng end of the, gearbox ;?
The other cylinder, located close to the first one, ou e.
freely. Both cylinders rotated in such a manner that the material
.had a speed of about 75 M. per minute befor'e,, and of about 300 Vim.
per' minute behind, the eye, whereby the string (horsehair) was
stretched to fourfold its origins length. Further on its way,, the
material passed a meter reoo rderl and was s' X1
-w~ sequently wound on. to a drama h reoeive,d25X1
friction .drive box so that tMOZ5X1
string could b ant tension. The r :rc t aid
string showed a marked tendency to return to its original length.
To,avoid this the drum was made elastic by means of six spring
blades which allowed, a safe shrinkage of the material of up to
five' per cent of the final length.
The strings wound on to drums were unwound at the warehouse to the
length wanted, then rewound into rings of about ..50 to 70 Win. diameter,
chamber I L VV roc aaw%h .,~.~,.,.., 0 2
. hn the stretching stand .' '
Q p ,
nad Luznioi /9921N'-i442. Nothing, however, had been moved as of
the and of June 1952. $3r 15 June 1952. the 5ilon plant had worked
'and finally' wrapped' up in transparent page.
.According to 'a decision taken by the Ministry of Chemical Industry
in May 1952, trial production of silon string's and artififial herse.-,
hair was to be transferred together with the entire production
e ui meat from aottWaldov to the Silon National Enterprise at Plana'
Out in rough lines designs for the entire equipment for larger,-scale
basis at Zilina L913N-1844'h. There the material was not stretched
by Bans of as drawing eve ut between cylinders on the spinning
3ilon strings. and artificial horsehairwere also produced on a trial
for Chemical Research on Polyamides has retained only trial pro-
duction'.of'silon strings and artificial, horsehair,
p
.silon andexpressed his conviction that no further improvement could
be achieved in matters of silon.. Of ~bilon prods cots, the Institute
ring of 1952 Ing. MORAVEC 'co feted his research work on
Ti the S
clot production of silon strings and horsehair. The designs were
based on thee'experience acquired at Oottwaldov The Silon plant
will ' be able to maintain a continuous production process,.whereas
the polymerization chamber at Gottwaldov was working intermittently.
machine. However, the gua.lity; of the string produced at GQttwaldov
was far better,
4
Approved For Release 2006/11/15: CIA-RDP80-0081OA000600650009-4