(Sanitized) PROGRESS REPORT - AUGUST 1966 PROJECT (Sanitized)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A003000050029-3
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 7
• Document Creation Date: December 28, 2016
• Document Release Date: August 2, 2002
• Sequence Number: 29
• Publication Date: September 19, 1966
• Content Type: LETTER

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19 September 1966
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Subject: I )
Augus
rogress Report -
Proj ect
Enclosed is a co y of Progress Report
on Project or the perio covere August 1966.
Also included is a copy of our Financial Report for this
period.
Very truly yours,
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Encl: (1) P.R.
(2) F.R.
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Declass Review by NIMA / DoD
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PROGRESS REPORT
Period Covered:
Document No.:
Dated:
PRESENT STATUS
August 1966
16 September
Instrument is complete and undergoing the test,
rework, and debug phase.
The objections to the roller noise during high
speed transport and lack of protective covers over the platen
solenoids have been recognized and action taken. Nylon rollers
have been changed to ball bearing mounted, non segmented, chrome
plated rollers. Solenoid covers have been designed and are being
fabricated.
Instrument is at same stage
ith ex- 25X1
L__1W
ception of some parts on the high intensity light sources.
PROBLEM AREAS
In regard to those characteristics (reported
last month) which the customer's representative has found to be
undesirable, various steps have been taken.
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gation.
1) The noise problem is still under investi-
2) A design change has been investigated to
change the rollers to chrome plated ones instead of the segmented
nylon rollers.
have been ordered.
3) New motors with higher horsepower ratings
The implementation of these changes as "fixes"
has not been scheduled yet, although the effect of using higher
rated motors and chrome plated rollers is being investigated on
thel unit.
There was a failure of a silicon rectified
bridge which was repaired at the customer's facility
The cause of this failure was not determined.
it was due to a faulty component.
It is assumed that
Film Tracking - The film would not track in a
straight line during transport. This was causing the edge of the
film to be forced against the flange of the spool and would in
some instances cause damage to the film. The cause of this was
believed to be the complicated film path through the guide rollers
and the difficulty in lining up all the roller axes. The first
attempt to solve this problem was by using special care in roller
alignment. A considerable amount of time and energy was expended
on this, but to no avail. As a last resort, the writer decided
to redesign the film path since the more involved path was neces-
sitated only by method of film tensioning (which is no longer used
- there is a glass pressure platen.)
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The change was made and the problem eliminated.
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The change was made only
rollers instead of a holddown platen.
film path is still required
Film Sticking - During high speed transport
of the film, adhesion of the film to the underside of the glass
pressure platen occurs, which overloads the capability of the
transport system. This tendency to stick to the glass is not,
at present, fully understood. It appears to be either an electro-
static or aerodynamic phenomenon. It is particularly severe with
unprocessed film. At any rate, we believed that we have eliminated
the problem by positioning the guide rollers so that the film
enters closer to the center of the space between the underside of
the pressure platen and the top of the glass viewing surface.
However, unprocessed film still does not work.
This problem would not exist if the pressure
platen could be raised more. However, since the incorporation of
the pressure platen was made after the instrument had been designed
and parts fabricated, the space available for this was severely
limited.
Film Transport - Some difficulty has been ex-
perienced in the transmission of power through three chains that
run the whole length of the instrument. To avoid possible inter-
ference with the electronic components (for power assist), which
are required to be packaged integral with the mechanism, the chains
are run in Teflon tubes. This has resulted in some increased
friction and prevented the use of the idler sprockets.
because the more complicated
which uses tensioning
This problem is being investigated; in all
probability, the design will have to be changed somewhat to one
employing shortened guide tubes (in the critical electronics area)
and idler sprockets to guide and adjust the chain tension.
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Possible Damage Due to Mishandling of X Carriage
It was recognized that possible damage could
be caused by an inexperienced operator, either lifting the front
of the X carriage and dropping it, or by violently moving it. The
design was changed to include a holddown track along the front of
the instrument to prevent the carriage from being raised more than
1/64 of an inch and a stop on the rear for the same purpose. These
changes are being incorporated.
Carriage Travel - It was discovered that al-
though the design complies with the requirements of the specifi-
cation, the center of the microscope would not traverse the full
edge-edge distance when two 5 inch films were being viewed.
We reAlized that the original Design Objectives probably intended
that there be full coverage on two 5 inch films and recognized
the improvement which would result by making a change. Changes
in the design have been made and the equipment is being modified
to provide this added travel.
It is anticipate that the same problems will
exist Thus, as changes are made
on one they are also made on the other. However, this cannot ap-
ply to the design change for the solution of the film tracking
problem because the original configuration of the rollers is re-
quired for the proper operation of the film tensioning system (no
pressure platen is used Ibecause of interference with
high intensity tracking light source magnets). This problem is
a formidable one and is being actively investigated.
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PROJECTED WORK FOR SEPTEMBER
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Design changes will be made, unit debugged and
made ready for final inspection. A preliminary inspection will be
made by the customer's representative on September 4.
Unit will be kept up to date lin re-
gards to changes.
High intensity light source will be completed
and installed. Unit should be ready for preliminary inspection
before months end.
SUI'2.IARY .OF CORRESPONDENCE
Visit to customer's facility
to investigate the problem. A shorted bridge rectifier in the
motor controller was found to be the cause. The rectifier was re-
placed and the unit operated satisfactorily.
one of the motors was overheating visited the facility 25X1
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August 17, 1966. 25X1
In response to a report from the customer's representative that
Financial Statement
A financial statement for the month of August is included.
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