THIS SUMMARY LETTER REPORT DESCRIBES THE WORK DONE UNDER WORK ORDER NO. III, TASK ORDER NO. CC, FROM NOVEMBER 17, 1958, THROUGH FEBRUARY 16, 1959.

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03642A001500030044-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 7
• Document Creation Date: December 22, 2016
• Document Release Date: June 13, 2012
• Sequence Number: 44
• Publication Date: April 2, 1959
• Content Type: LETTER

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April 2, 1959
This summary letter report describes the work done under
Work Order No. III, Task Order No. CC, from November 17, 1958,
through February 16, 1959.
The effort in this research program was directed toward
the following:
(1) Primarily, to evaluate the feasibility of
developing an appropriate instrument or
apparatus for use as an accessory to your
operating representatives' special two-
component tool
(2) Secondarily, to investigate limited
modification of the special two-component
tool, in an attempt to reduce breakage
of the
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25X1
25X1
25X1
25X1
component in actual service.
Initially,
and one special
tool were furnished for our study. Examination and manipulation of
these items provided an opportunity for us to become familiar with at
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April 2, 1959
least some possible field problems, and several ideas were suggested
by this experience. Subsequently, in conferences with you, it was
found that some of these ideas had already been conceived and
implemented advantageously, while others seemed to be new. However,
for the record, two of the ideas resulting from this study are
noted here:
(1)
In the process of attempting
some kind of indexing device might be of use as an aid in
rapidly and accurately. Such a mechanism was
designed and prepared for use in connection with the special tool
furnished us; the device was found to be distinctly helpful. The
device, a detent mechanism, consisted essentially of a ball - spring
unit which was clamped to the shaft of the moving component of the
tool; the ball of this unit rested in a small hole in the moving-
component shaft and contacted a set of transverse peripheral grooves
on the shaft of the holding component. These grooves were equally
spaced at a distance corresponding to the
By means of a screw, the force
exerted on the ball by the spring could be varied over a wide range,
down to zero. Thus, it was possible for the mechanism to be easily
adjusted to suit the operator and to some extent the service
conditions. The holding component which was used in the laboratory
experimentation with the detent mechanism was relatively soft, and
the grooves tended to wear. However, as is discussed later, the
special tool which was available to us is outmoded; the newer versions
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~
April 2, 1959
are harder and grooves in them could be expected to withstand this
type of service without sustaining undue wear.
(2) It was also apparent that some provision for applying
the holding torque mechanically would be advantageous. Mechanical
aid of this sort would relieve the operator of a very tiresome task,
it also offered a
safety feature in limiting the torque to values considered to be safe
with respect to the ultimate strength of the tools. Such a device
and an accessory for supporting the outer end of the tool (so as to
minimize the effects of slight misalignment) were designed, fabricated,
and demonstrated to your representatives. The essence of this idea
had apparently already been applied by your operating personnel.
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Iq
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April 2, 1959
A recent discussion with you and your operating representative
indicated that more current versions of the special tools have been
fabricated from AISI 4340-type steel and a stainless steel, and that
breakage is not a problem at present. In case breakage should be en-
countered in the future, it might be well to investigate the pos-
sibility of heat treating the steel used in order to obtain optimum
strength and ductility for the particular application.
On the basis of a discussion of the above-described results
with you, a research program was proposed in our letter dated March 6,
1959, to investigate the development of an appropriate torque-
measuring and -indicating system. This program was subsequently set
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 Declassified in Part - Sanitized Copy Approved for Release 2012/06/13: CIA-RDP78-03642AO01500030044-4
April 2, 1959
Tool
Hardness
Estimated Ultimate
Tensile Strength,
Probable
No.
Knoop Rockwell
psi
Steel*
0
808
C64
>283,000
AISI 1080
1
210
B94
96,000
AISI 1010
2
296
C24
118,000
AISI 864o
3
590
c54
>283,000
AISI 1040
4
295
C24
118,000
AISI 8640
5
282
C21
110,000
AISI 8640
*Based on analytical data.
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GRIT
April 2, 1959
up under Work Order No. X of Task Order No. CC, and the research
is under way.
We would appreciate any comments that you or your associates
might care to make with regard to the research performed under Work
Order No. III.
Sincerely,
In Triplicate
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