ADJUSTMENT OF FREIGHT CARS TO BROAD GAUGE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00457R004800020001-3
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 27, 2016
• Document Release Date: November 19, 2013
• Sequence Number: 1
• Publication Date: May 9, 1950
• Content Type: REPORT

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Declassified in Part - Sanitized Copy Approved for Release 201-3/11/19 : CIA-RDP82-00457R004800020001-3
CENTRAL INTELLIGENCE AGENCY REPORT
grWeRWINTOWIRKPC)Fkir
COUNTRY Hungary/USSR coAtribe
SUBJECT Adjustment of Freight Cars to Broad
Gauge
PLACE
ACQUIRED
DATE OF
INFO,
CD NO.
DATE DISTR.9 mkt-
40. OF PAGES 2
NO. OF ENCLS.
(LISTED BELOW)
SUPPLEMENT
REPORT NO.
50
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1. Since the new axle must move on a broad-gauge line, the distance between
the wheels must be increased. Generally the wheels are pressed onto the
axle, which means that the axle must be heated. As a result, the bore in
the wheel's center heats up, and enlarges, so that the wheel can be easily
mounted on the fit. The wheel is then allowed to cool and the bore contracts,
confining the axle so tightly that it cannot be dislodged without reheating.
No wheel can be mounted trade on the same fit. Since Russian railroads can
take European wheels, only the axles are exchanged and the old wheels mounted
on the new axles. This was done in the case of five thousand cars of German
goods which the Hungarian railroads changed over to broad gauge. The broad-
gauge axles were furnished by the Russians and all the rest of the work was
done in the workshops of Zahony. The old oil boxes can be used on the broad-
gauge axles.
2. For broad gauge the axle-guard must be located farther away from the central
line of the vehicle than for standard gauge. The guard is made either of cast
iron or of inminated sheets of metal. Eastern European cars are constructed
in such a fashion that if the axle-guards are attached to the inner side of
the shaft of the chassis, the guard is in just the place prescribed by railroad
standards. In the case of a changermer the axle-guard must be bent in order
that it may be placed in its nevi position. The original riveting must therefore
be cut, the guard dismounted, reheated and re-riveted to the chassis shaft.
3. The load of the cars is transmitted by the springs to the axles, which has
the advantage that the chassis receives aft exactly vertical load. Generally
the chassis shaft has an "Ime-shdied profile on freight care.
4. Because of the new broad gauge, the suspension of the springs must also take a
more exterior position and may not rest exactly underneath the chassis shaft.
.For this reason, on the outer side of the chassis shaft another special shaft is
riveted to hold the suspension supports. The chassis shaft of cars altered to
_broad gauge thus receives, besides the vertical load, a torsion loads but this
is not so powerful as to have a serious effect upon the life of the. cars,
5. Altering the brakes is 1:42) t ope tion. The brake shoos must merely
occupy a more Outside po
to exercise their braking
CLASSIFICATION
STATE-y
NAVY
KNSRB
ARMY
MR
FBI
Oil:
GONFID ,,TIAL/bOUTROL U.S, OFFICIALS ONLY
Thlt IloCtrment?M?hereby?regraded?to
CONFIDENTIAL in accordance with the
letter of 16 October 1978 from the
Director of Central Intelligence to the
Archivist of the United States.
Next Review Date: 2008
DISTRIBUTION
lilluiftas
Dale:
AL
Declassified in Part - Sanitized Copy Approved for Release 2013/11/19: CIA-RDP82-00457R004800020001-3
50X1
Declassified in Part - Sanitized Copy Approved for Release 2013/11/19: CIA-RDP82-00457R004800020001-3
CONFIDENTIAL/CONTROL - U.S k? OFFICIALS ONLY
CENTRAL INTELLIGENCE AGENCT
- 2a
effect on the surface of the wheels. Since the brake gears are in the
center of the vehicle, they remain unchanged. The main suspension rod
of the brake shoes must be bent as much as is necessary, and the brake
triangles mast be exchanged in order to regulate the distance between
the brake Shoes. The brake triangles can be altered with little effort.
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6. The fout-axle car has two bogies, in each of which are mounted two axles.
It is most important that the bogies be kept independent of the chassis.
Alteration of gauge for the four-axle ear is accomplished simply by exchang-
ing the regular ones for broad-gauge bogies. The chassis (with the caisson
of the vehicle) is elevated, the old bogie is pulled out and replaced with a
new one. The operation is carried out at both ends of the ear, and only a few
screws must be tightened. Changing over these two bogies does not take
more than one hour. This type of alteration has the advantage that the cars
can always be changed back to normal gauge while the two-axle car can be
changed over only by the entire complicated process described above.
7. In the case of the four-axle cars, the entire brake gear is located on the
bogies and is manipulated by a shaft connected to a brake roller located on
the carls chassis.
8. Although the transformation of four-axle cars is simple, both standard and
broad-gauge bogies must be on hand (in supply). In the event that the bogies
must be altered, all the Work involved in altering the two-axle car must be
performed, which in the case of the four-axle car is doubled. The construction
of the bogies is such and the alteration of them so complicated that in
practice it is not feasible to alter them and is much better to build new
'ones.
9. There is yet a greater difficulty. In the satellite countries there are
so fen freight cars with four axles that it is impossible to undertake very
extensive shipments.
CONFIDENTIAL/CONTROL - U.S. OFFICIALS ONLY
Declassified in Part - Sanitized Copy Approved for Release 2013/11/19: CIA-RDP82-00457R004800020001-3