GREAT SUCCESS OF INTERNATIONAL ECONOMIC CONFERENCE NEXT MEETING OF COMMITTEE FOR FURTHERANCE OF WORLD TRADE AT LEIPZIG FAIR IN SEPTEMBER 1952

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP83-00415R010100150001-1
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 8
• Document Creation Date: December 14, 2016
• Document Release Date: June 20, 2001
• Sequence Number: 1
• Publication Date: January 1, 1952
• Content Type: MAGAZINE

,.~ CPYRGHT
LUPZIGERMESSE
TECH NISCHER DIENST
Great Success of International Economic Conference
Next Meeting of Committee for Furtherance of World Trade
at Leipzig Fair in September 1952
These lines are being written only
a few days after the end of the Inter-
national Economic Conference in Mos-
cow. Close on 500 leading industrialists,
economic experts, and business men from
50 countries met to discuss how the
difficulties at present existing in inter-
national trade, can best be overcome.
They found that it was not only possible
to agree on a common platform, but
proved it in practice by concluding large-
scale trade agreements, which augur
well for future trade between Western
European and overseas countries on the
one hand, and the Soviet Union, China,
and the Eastern European countries on
the other.
At the end of the conference, a Com-
mittee for the Furtherance of World
Trade, consisting of 30 members, who
come from Britain, the USA, China,
and the USSR, as well as many other
countries, was set up. This Committee
decided at its meeting on April 14, to
hold its next meeting at Leipzig during
the Autumn Fair in September 1952.
The Leipzig Fair, which will be held
as a Technical Fair and Sample Fair
for consumer goods from September
7-17, has been an arbiter in east-west
trade for centuries past, and Leipzig is
today ready, and better able than ever
before, to play its middler role in inter-
national trade.
The Leipzig Fair is the shop-window
for German industry, particularly of the
German Democratic Republic, where
production is now 36% above the level
of 1936. But Leipzig Fair is also to an
ever increasing extent being used by the
Soviet Union, China, Poland, Czecho-
slovakia, Hungary, and many other
countries, to show what they are produc-
ing and what commodities they are
prepared to barter on the world market.
Latest reports show that demands for
exhibition space by foreign exhibitors
are about double those of previous fairs.
Czechoslovakia, for instance, has reserved
a total area of 48,000 sq. ft. Extensive
building projects are at present being
carried out on the Technical Fair
grounds to make more floor space
available, particularly for heavy in-
dustry. More details about these projects
will be found in the following article.
The response from all parts of Europe,
North and South America, the Middle
and Far East, shows that Leipzig Fair
in September will once again prove
that it is possible for countries with
different social and economic systems
to entertain peaceful trading relations
with one another.
New Building Projects for Leipzig Fair
Since the beginning . f the year, build-
ing activity has increased on the Leipzig
Technical Fair ground,. Already in the
autumn of 195], work. was begun on a
new exhibition hall 450,`'t. long and 130ft.
wide. When on a cold iiebruary day the
roof was set up on th first section of
the building, the fui iaments of the
second section were )eing completed
(Fig.1): The hall cons:-.ts of two naves,
each of which will be-equipped with a
crane construction with a capacity of
16 tons. This new hall is in the meantime
nearing completion and will make over
60,000 sq. ft. of exhibition space avail-
able, which will in the first place be
put at the disposal of firms producing
food-processing and refrigerating ma-
chinery and machines for the chemical
industry.
At the beginning of 1952, work was
started on a new hall, which will house
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Fig.1
the machine-tool industry. The first
section will be completed for the Sep-
tember Fair. After final completion in
1953, this hall will, with an exhibition
:urea of 160,000sq.ft. be, beside the Soviet
Hall, the biggest hall on the Technical
Fair grounds. Its total length will be over
650 It., and it will he 250 ft. wide. It will
have 3 naves, each equipped with its own
crane (Fig 2).
Both these halls now being built are
the realisation of projects which the
management of Leipzig Fair is carrying
out within the Five-Year Plan of the
Geruoan Democratic Republic. Till 1935,
a further number of halls will be built.
Great building activity is to be ob-
served on. the hall of the Soviet Union,
whose architecture is being entirely re-
constructed. Special building materials
brought from the Soviet Union are being
used. When the hall. is completed in the
summer, it will be the most striking
building of the Technical Fair grounds
and will without doubt be one of the
most beautiful exhibition halls in the
world.
A number of smaller projects round
off the picture of the building prepa-
rations for Lcipzi.g Fair 1952, which will,
in every respect, be'the greatest and most
interesting Fair since the war.
New Testing Instrument for the Supervision
of Moulding and Core Sand in Foundries
Porous castings are in many cases pro-
duccd owing to the use of faulty moulding
or core sand. Foundry sand which is well
permeable to gas,
generally eliminates
this fault, which im-
pairs the quality of
the casting, involves
a high rate of waste,
thus reducing the
production and in-
creasing the cost.
The primitive,though
frequently employed
testing method of
blowing tobacco
smoke through the
moulding sand or
dried core compress-
ed in the hand, is
quite unreliable and
should therefore be
repudiated from the
standpoint of exact measuring technics.Re-
cognizing this fact as well as the necessity
that the foundry sand used for a definite
metal, is currently tested for permeability
to gas and contents of humidity, the firm
Geriite- and Armaturenwerk Magdeburg
vorm. Schaffer and Budenberg, Magde-
burg-Buckau, developed the gas i+erm.e-
ability tester shown here, for the deter-
initiation of the permeability to gas by
means of a sample prepared always un-
der the same conditions either by stamp-
ing on a ram, or by cutting out of the
stamped form, and tested either in a
moist or dried condition. The indicating
instrument, built into the front board and
equipped with a black face ring, shows
values between no and 5 cm./minute, de-
termined by the time required by the air
to pass through, and thus representing an
unequivocal measure for the permeability
to gas of moulding or core sand. The per-
meability to gas is e.g. for metal castings
15. . 60, for thin-walled cast iron 15 .. 25,
for machine castings 25..40, for green-
sand steel castings 80.. 180, for dry-
sand steel castings 150. . 300 cm.)min.
Any unskilled labourer will be able to
determine these values after a training
time of 15 minutes.
These values allow conclusions to be
drawn regarding the humidity contents
of sand, provided that the composition
of the sand is uniform. If e.g. the mould-
ing or core sand are of the same compo-
sition, while the values found for the
permeability to gas drop, this is a positive
indication of too high a degree of humid-
ity contained in the foundry sand used.
Hence the dressing of sand is currently
examined by the permeability tester.
B FT Triodometer Type Tg 4
Electric constants are used in the chem-
ical industry for the purposes of quali-
tative and quantitative analysis. The
Triodometer type Tg 4 measures the pH-
value of aqueous solutions, working prac-
tically withou t current as continuousten-
sion valve voltmeter. The conductivity is
measured with low-frequency alternating
tension, and the constant of diclectricity
with high-frequency alternating tension.
The alternating tension required for mea-
surements, which is expected to meet
particularly high demands regarding the
shape of its curve, is produced by a built-
in reversible valve generator. In poten-
tiometric titrations, the point of equi-
valence is indicated by a sudden change
of the pointer deflection, in conducto-
metric titrations by a change in the direc-
tion or speed of the pointer movement.
For the purposes of continual super-
..vision of manufacturing methods, a re-
cording instrument is connected to the
hushes marked "Instrument". In order
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High-Efficiency Special Calenders for
the Paper-Making Industry
The calender plays an important part
among the paper-making machines used
to provide the paper surface with a special
effect: gloss, smoothness, embossments,
etc. Both the nature of the effect as well
as the kind of paper are decisive for the
design of the calender, its size, the num-
her and width of rollers, the condition,
arrangement, and bearings of rollers, and
many other items.
The frame, in which the rollers are
arranged one above the other, must be so
designed, that vibrations are eliminated
even at highest loads and at top speeds
of the paper web passing through. Some
of the rollers have a spherical body which
consists of pressed special material en-
suring resilience, while the hard rollers
are ingot castings with a great surface
hardness (glazing calenders) and may be
heated or cooled. Ordinarily the rollers
are so arranged that one heating roller is
mounted between two elastic rollers.
For quick-running calenders, the design
of the bearings is a consideration of deci-
sive importance.
Oleohydraulic pressure is now being
preferred at a growing rate. The use of
oil as a medium makes the pressure uni-
form and free from shocks.
All adjustments and changes in the
machine are controlled by a switching
plant and are simultaneously indicated,
such as the regulation of pressure down
to instantaneous complete relief of press-
ure, the lifting of rollers while the cal-
ender is stopping, the actuation of the
hydraulically controlled brake on the
feed side and on the differential drive of
the delivery side. The push-button control
board for starting and stopping the cal-
ender and the pump, is also arranged on
the switch plant. As the latter is mount-
ed within the reach of the operator, the
machine can be safely operated and
attended in its various positions without
loss of time.
Mounted to the paper-unwinding de-
vice, there is a water-cooled hand brake,
allowing the production of a uniform and
sensitive braking effect, the energy for
which is produced by oil pressure.
The paper web is reeled by means of
a differential drive, i. c. it is designed as
a differential type. The differential drive,
too, is equipped with a water-cooled
hand brake controlled by oil pressure,
while the winding tension can be con-
veniently read from the manometer. The
paper tension can be adjusted finely from
kg. to kg. by means of a measuring in-
strument, so that it can be suited to the
character of the paper.
Telephone Conversation of
Everybody with Everybody
VEB Telektron has developed a tele-
phone station for a conference inter-
communication and telephone plant for
21 participants. The telephone station
consists of a plastic casing containing,
in addition to the talking equipment, the
21 press buttons arranged in 3 groups,
by means of which the station can be
connected with every other station.
1lounted on the right side of the press
buttons, there is a red pilot lamp which,
when glowing, indicates that the stations
controlled by the adjacent row of press
buttons, are busy. The button of the
desired participant has to be depressed
while talking, the connection is establish-
ed instantaneously. The name or desig-
nation of the participant can be noted
on a ledge mounted above the press
buttons.
Precision Honing Machines
HOS 350 sup.
The precision honing machine HOS 350
sup. (super-finish), constructed by WMW
ii onmaschinenwerk Naumburg VEB, war-
rants maximum micro- and macro-gco-
metric precision and shortest machining
time for work of 6 to 55 mm. diameter
and up to 300 mm. long. The construction
of the machine is based upon the practi-
cal and scientific experience hitherto
made in the construction and operation
of honing machines. The machine is suit-
able for finishing bores of 6-55 mm.
diameter, assuring a super-finished sur-
face which complies with the greatest
demands. If equipped with special hon-
ing tools, the machine can also he used
for external honing work.
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Latest 't'echnical
Developments
Machines fur the Leipzig Fair Being
Developed. In the machine-building far-
tories of the German Democratic Bepm-
blie, designers, engineers, and workers
are intensively engaged in the develop-
ment of new machine types. The new
samples will be exhibited for the first
time at the Leipzig Fair 1952, to be held
as a large technical fair and sample fair
from September 7th to 17th. Series pro-
duction will begin in 1953. The Nilrs-
Werke, Cheninitz. e. g. are getting out
new designs of sliding and screw-cutting
lathes, and the required special machines
for the production are being developed
at the same time. fhe Fritz Heckert
Werke at Chemnitz, which are leading in
the construction of milling-machines in
Germany, will also exhibit some new
designs of heavy construction at the
Leipzig Fair. The Fair models are also
being manufactured.
Motor-Gar Bodies Made of Plastics. X
motor-car body of plastics, which reduces
considerably the weight of the vehicle,
has been developed by the engineers
of the people-owned Hartpappenwcrk
Polcoz in the. district of Pirna, and of
the IFA Association of People-Owned
Vehicle Factories. This innovation, whi??Ii
is pioneering for the whole automobile
industry, answers all requirements of
modern engineering in the construction
of vehicles. Attempts in the United
states and in England to make motor-car
bodies out of plastics, were not pro-
ductive of satisfactory succes. The first
trial ear, whose entire outer walls, iu-
cluding the motor hood, mudguards,
and luggage carrier, are made of plas-
tics. has been successfully running for
more than one month. The car was
kept going for 16 hours daily on the
average, under severest conditions. The
first 2,000 cars of the DKW F9 type
to he constructed under the National
Economic Plan, 1952, will be equipped
with the new plastic body.
Pilot Boats Launchers. Two pilot ho.tts
have been launched by Lite Centhin ship-
yard. A third boat will be launched
,portly. I'urthermorc, the construction of
a workshop ship has been scheduled for
this year, which will[ be used for repair-
in shi is on sea The Genthin shipyard
warrants for untYorm tssu:,s as to quali- The next working process is then pre-
ty and machining time, and facilitates the indexed, and the machine itself is dis-
work of the ope.,ator in the production connected. A pilot lamp indicates the
of larger series. A time relay is provided expiration of time in advance, warning
to adjust the honing time according to an the operator that the feed wheel should
empiric value. Out expiration of the pre- he turned back in order to release the
set time. the table carryiing the work honing reamer slightly.
Cutter-Head Grinding Machine SM 700 for Cutter-Heads
of 110-700 mm. Diameter
The (-titter-head is enjoying growing
importance for machining plane surfaces.
A carefully ground and true-running
cutter-head can be used to produce extra-
ordinarily fine surfaces. Furthermore,
when doing roughing work., the cutting-
rate is considerably increased. The cutter-
head grinding machine, therefore, is an
indispensable tool. The machine is so de-
signed, that perfect grinding of the cutter-
heads is assured. The machine can be
used for grinding right-hand and left-
hand cutting heads.
The tool holder is form'-d spherically,
supported on two sides, and clamped in
position by a star handle. A graduation
facilitates Lite adjustment of the cutter
angles to be ground. The carrying spindle
is arranged vertically and supported in
accurately adjustable cone-roller bear-
ings.
The grinding spindle is mounted to a
revolving part on the hearing and per-
forms a reciprocatory movement over the
cutter to lie ground. After one complete
stroke, the cutter-head is automatically
moved to place the next cutter into grind-
ing position. The grinding spindle is con-
structed for left-hand and right-hand
operation and can be quickly exchanged
if necessary. The grinding wheel is fasten-
ed in a support and can be balanced by
weighting segments. The grinding spindle
is driven by - a three-phase motor with
five-stepped pulley and V-belt. The belt
can be shifted by hand by loosening the
three-phase motor mounted on a slide.
Five speeds of 1225-1850-2800-3200-4800
r.p.m. can be used, allowing cutting-speeds
from 6-25 m./sec.
The grinding measurements are set
automatically and elect ro-mcchanically.
The revolving part with the grinding
spindle is supported on a slide running
in a prism of the outer hearing, and can
be lifted or lowered by means of a hand
wheel to adjust the position of the grind-
ing wheel roughly. A scale is provided to
facilitate the adjustment of the grinding
depth of 0.1-4 mm., and the regulating
button serves for adjustments between
0.05-0.2 mm. The automatically work-
ing feed becomes
smaller towards the
end of the grinding
operation, whereby
the surface quality
of the cutting edge
is extraordinarily
high. By depressing
a particularly mark-
ed feed lever, an
additional grinding
depth of 0.005 rum.
can be obtained.
Manufacturers:
WMW
Masdtinenfabrik
Merlin-Treptow
VEB,
Berlin=l'rcptow.
Emergency Motor Boats for Seaports
R t V V'IV Rostock is in a position to sub-
ships up the construction of scagomg!, I"' '
ships only in the last year. The first two.mit two mature designs for emergency
pilot boats as well as special floating iuimotor lioats,_which will he constructed
plemcnts for raising sunk ships were shortly. The boats, which will be station-
commissioned for service in 1951. The ed at seaborts, are intended to be used
staff of the shipyard has been increasc(1, as lire-boats, icebreakers, and salvage
by more than four times since 1949. In boats. One of the -cssels is provided with
the course of the IPivc-Year Plan, the a double-screw drive, the other one has
shipyard will he provided with a large it Voitlu-Schneider propeller. The pro-
ship-building shop. puller boat, whirls is 30 m. long and
Clove-Making Machines for Export. -7.5 in. wide, reaches a speed of 25 km./h.
Considerable supplies for export are be- 'at an engine outpait of 980 HP. Four sets
iog made by tlic private company of of centrifugal pill 'Ps connected parallel
Lorentz & Poltertuann at Altenburg, who accomplish an oil [ pttt of 3.2 n .sf min. at
are specialized in the manufacture of a pumping Neigh: of 40 M. The Voith-
tools and machines for the glove-rnaking Schneider vessel, 'j iich is 27 m. long and
industry. In the previous year alone, 7.0 m. wide, reach!,; a speed of 24km./h.
about 25% of the whole production were at an engine outpat of 800 HP,Avhile its
supplied to Poland and Finland. At the three parallel setr_ of centrifugal pumps
deliver 30 111.31 min. at a delivery height
of 55 in.
Tile vessels are provided with Diesel
electric chive, allowing the energy gene-
rated to be used either for propulsion or
pumping, as required. In the double-
screw ship, three DC generators are
driven by three Diesel engines of I X 420
and 2X 280 HP, The courrent thereby
generated and kept constant is used for
the drive of the 8 pumps of 80 kW. cash,
or for the drive of the two propeller
motors of 280kW. each. In the Voith-
Schneider vessel, four Diesel engines of
200 HP generate three-phase current for
three sets of pumps or for the two pro-
peller motors of 500 kW. total. The Voith-
Schneider propeller distinguishes itself
by its unsurpassed mann'uvr.dtility,
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 which makes it possible to turn or to
keep the boat on the spot against wind,
water currents, and the reaction pressure
of the fire engines without it being
necessary to change the speed or re-
volving direction of the driving motors.
For this reason, it was possible also to
use a three-phase current plant.
The boats are equipped
for extinguishing fires in
rooms and on shore and
also have a foam extinguish-
ing plant for the control of burning
liquids and other dangerous incendiaries.
If used as ice-breakers, the bodies of the
vessels are provided with an inclined ice-
breaker stem and with round ribs. The
stern of the two ships extends below the
water level, so that drifting ice can not
easily get into the propeller.
The shins of welded all-steel
qa-- construction co:-respond ro ver-
rnanischer Lloyd Class 100 A 4
Dokumator System for the Production
and Evaluation of Micro-Books
On account of the rapid growth of
world literature, documents of all kinds
(books, periodicals, sketches, pictures)
have to be stored on smallest space, but
still be easily accessible. These tasks are
fulfilled by the Dokumator System of the
Carl-Zeiss-Werke VEB, Jena. It consists
of the Dokumator Camera, the Micro-
Books, and the Dokumator Reading-Set.
The Zeiss Dolcumator Camera makes
reproductions on standard 35 min. film.
Almost all its parts are made of metal.
The reproduction camera is attached to
a post and can be moved and arrested.
Its weight is balanced by a counter-
weight. The camera is a rigid ininicam
with a cartridge for 50 metres of standard
film. This amount of film suffices for
about 4,800 book pages or 8 volumes with
600 pages each. After every ten frames,
an obligatory blind exposure is made. In
this way, the exposed, developed, and
fixed film can be easily cut into handy
strips of ten frames each. The camera is
equipped with the special 35 mm. Do-
Icumar lens. Each exposure is marked
with a number which is photographed
together with the object. The camera is
provided with a voltage regulator guaran-
teeing that the four illumination lamps
burn with a constant brightness. The
camera is set for the exposure according
to two scales, one on the guide post and
the other one on the objective. On these
scales, you will also find the German
Standard Sizes from DIN A 6 up to
DIN B 3. Shortly trained operating per-
sonnel will easily reach an average of
300 to 400 exposures per hour with or-
dinary objects.
Measurements of
the camera: length
1,150 inrn., width
1,550 mnr., height
1,870 mm. Weight
about 285 kg.
The film strips of
ten exposures each
are stored and ar-
rar,ged in Dokurator
Micro-Books. These
honks consist of a
cover with folio-
ca-ds inside. Each of
the folio-cards con-
ta'gs 5, 10, or 15
cards as desired, in
which the ten-frame
strips are stored in-
are being prepared, which will take up
a whole year's production of the works.
Interception of Flying Cinders. The
engineer Mr. Paul Ostermann was award-
ed a premium of 5,000 DM by the General
Managements of the German Railways,
in consideration of a now device develop-
ed by him for the interception of incand-
escent flying cinders. In the smoke-box
of the locomotive, the spark-arrester is
replaced by a sheet-metal case, which
guides the sparks from the outlet to the
chimney. Parts which are nearly burnt
and which cannot be deflected on account
of their smallness, are extinguished and
deposited by a screen of water. The in-
stallation costs DM 150 per engine.
Articles much in Demand for Export.
The Polygraph- Druckautomatenwerk,
Leipzig 0 27, is producing printing-
presses for the graphic trade. In the pre-
vious year, 70% of the machines pro-
duced have been exported. A fine proof
for the high-quality work done by the
staff of the enterprise. This success was
accomplished above all by the new atti-
tude of the workmen to their work.
Also for the year 1952, considerable
orders have been received from Australia,
Norway, Mexico, Venezuela, Finland, and
Hungary. Mercedes I and II as well as
Mercedes 0, which have been improved
or newly developed. since 1945, are
greatly demanded for export.
dividnally. Contact prints of four ten-
frame strips each as well as an index
are further features adding to the handi-
ness of the book.
The Dokumator Reading-Set contains
a well prepared white surface, on which
the pictures of the ten-frame strip are
projected individually one after the other.
In order to ensure contrasty projecting
pictures also in bright rooms, the Read-
ing-Set is provided with a hinged light-
hood. Script and pictures can be pro-
jected to a white screen by means of a
mirror and can thus be observed by a
larger number of people. The Reading-
Set is further provided with a dia-pro-
jecting device for dias of 5 X 5 cm. Large
copies can also be prepared with the in-
strument.
Measurements of the Reading-Set:
length 520 mm., width 490 mm., height
690 mm. Weight about 21.5 kg.
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 Thefts 9V RR> j9WMq?40340At,c4#-9W?jr&0415K,?d(OapOiI 50 oQ1711P at 2,000 r-p.rn.
The most import-
ant stage of devel-
opment in the field
of Diesel engines in
the German Demo-
cratic Republic was
reached with the
Diesel building-box
series, produced by
the 1FA, association
of people-owned ve-
hicle-works.
The term building-
box series covers a
outrlber of Diesel
engines of different
output, but of fully
equal basic construc-
tion: engines that
have been designed
as a drive for road,
farming, waterway,
and rail vehicles, as
well as for station-
ary service with
bullring-machines, and as a drive for
compressors and electro-gettcrators.
With the development of this build-
ing-box series, the IFA staff set itself
the task of achieving outstanding, far-
reaching standardization, together 'vith
it substantial simplification and reduc-
tion of cost, in the manufacture and
maintenance of Diesel spare parts.
A great number of parts can he used
for the two-cylinder, as well as for the
three, four, and six-cylinder building-
box engines, such as: connecting rods,
pistons, cylinder blocks. cylinder liners,
cylinder heads, cylinder-head caps,
valves, valve control, and drive gears.
The new construction was based on
a four-stroke, watercooled, eddy-
chamber Diesel engine with a cylinder
capacity of alit. 1.5litres. The technical
data are as follows: cylinder bore 115
rllln., cylinder stroke 115 lnm., rate of
eotnpression 17.5 :1, attainable mean
pressure alit. 7.5 kg., most economic
fuel consumption alit. 190 gm./HP/h.,
cylinder output 15 IHP at 1,500 r.p.m.,
and 20 HP at 2.000 r.p.m. The de-
tarhahle cylinder block, fitted with wet
liners, holds the cylinders, two (or
three) being cast integrally. This ap-
plies to the cylinder head in the same
way. The camshaft is drivenbv a helical
gearing, lubrication of the engine being
effected by a force circulation system
with rug-wheel pump of single or
twin-type, The. valves are suspended in
the cylinder head and are controlled
over tappets, push-roils, and tilting
levers. Duel is supplied by an IFA
standard injection pump under 100 ato
pressure through a pivot nozzle. The
p11tn1) may be de-
livered with a re-
gulator, if desired.
The Diesel build-
ing-box series covers
the following types:
EM 1-15, two cylin-
der of 3,012 c.c. ca-
pacity, output 30 HP
at 1.500 r-p.m., and
40 H 1' at 2,000 r.p.m.;
EM 3-15, three cy-
linder of 4,518 c.c.
capacity, output
45 HP at 1,500 r.p.m.,
and 60 Hl' at 2,000
r.p.m.; EM 4-15, four
cylinder of 6,024 c.c.
capacity, output 60
HP at 1,500 r.p.m.,
and 80 Hl' at 2,000
r.p.m., and as out-
standing type EM
6-15. six cylinder of
9,03( c.c. capacity,
output 90 HP at
gines are chiefly confined to stationary
use, the four-zylindcr EM 4-15 is the
"heart" of the well known IFA Iforch
"11 3 A" lorry, many thousands of which
have excellently stood the severest- tests.
The EM 6-15 is the driving engine for
the new six-tons IFA Ilorch lorry type
"1 16".
The Air-Cooled
"Granil 32"
I.FA Diesel Engine
'I.'his new type of Diesel engine, which
is produced by IFA Phanomen-Work,
Zittau in Saxony, represents quite it spe-
cialty. The Phanomen-Werke, which en-
joy world-wide reputation, are known to
have been the first sponsors of air-cool-
ing for lorry engines in Germany. Their
great success was the "Granit 27", a four-
stroke fuel engine with four eylinders
individually arranged in series, with it
stroke volume of 2678 r. c? and a power
output of 23 UP at a speed of 2800r,p.m.,
which has been sold at the rate of tens of
thousands with the greatest success. The
air-cooling system with blowers, with
which this engine was equipped, has given
so excellent results, that the engineers of
the Zittau IFA. Works have decided to
adopt this system also for the new, more
powerful, and more economic Diesel en-
gine. Thus, the "Granit 32" IFA Phiiuo-
ltt en today is a Diesel engine which is a
further development of a petrol engine.
The four cylinders of the Diesel engine
are also arranged individually in series.
The cooling air is supplied to the engine
by a double blower. The cylinder bore
amounts to 90 root., the stroke is 125 nun.
The stroke volume of the "Gratin 32"
now is 3181 c. c., while its power output
amounts to 25 HP at a rate of compress-
ion of 18: 1 and a speed of 1500 r.p.nl.
Its essential advantage over the petrol
engine consists in the fact that it is far
less sensitive and, therefore, its life
should be much longer. In the first place,
the "Granit 32" serves as a driving motor
for the robust 1.5-2 to IFA Phanomen
high-speed lorries with flat top and box
body, as well as for the world-renowned
air-cooled Phiinomen ambulance cars. In
addition, it attracts more and more atten-
tion as a stationary motor and drive for
the most diverse machines in industry
and agriculture.
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 Apprc gJ FLor Release 52002/~I/~4 : CIA-RDP83-49 Qe1t~ ~Q~ir~ ~Q~4rilthe mains,
Automatic 1g 1- flclency , oaf 1
or a photo-flood lamp 75 V/375 W with
The refining mill is one of the machines
required in the manufacture of soap. It
crushes, mixes, and kneads the soap to
form fine soap or toilet soap. The soap
particles delivered by the machine need
only be passed through the string press
and are then formed into loaves. A re-
fining press with multiple track and built-
in mixing and kneading worm is produc-
ed by VVB Nagema, Dresden-A. 36. This
refining mill is constructed with three or
four rollers. The working process within
this machine is as follows: The soap flakes
which are well premixed in a mixing
machine, are fed into a feed box divided
into two compartments. The flakes fall
into the compartment below the worm.
They are then ground only by one half
of the roller. The layer of soap is remov-
ed from the top roller by a scraper and
is transported to the worm, which kneads
and mixes it, and presses it through a
plate with fine perforations. By this pro-
cess, soap noodles are formed which
shortly after emerging from the perfora-
tions, are cut into small pieces by a rotary
knife. These pieces drop through a chute
into the other compartment of the feed
box, whence they are conveyed to the
other side of the rollers for further treat-
ment. The soap, which has thus been
ground, mixed, and kneaded twice, is
stripped from the top roller by means of
a scraper and processed further in the
string press. Further remarkable fea-
tures of the refining mill are: roller-
cooling system, lien drdum-type roller-
bearings, gear wheels with milled helical
teeth, lubrication by oil bath and oil
circulation, etc. A special type of re-
fining mill is provided with a soap-flake
cutting equipment. - Technical data:
Diameter of rollers 322 mm., total length
of rollers 900 mm., working length of
rollers 840 mm., measurements of iria-
chine, according to type: 2000 min. long,
2400 nrm. wide, 2300 nun. high; or
1800 nun. long, 2400 m'n wide, 2000 mm.
high; net weight 4250 kg. or 3300 kg.;
power required 30-35 IIP, or 25-30
IIP, respectively.
Refining mill (diagrammatic sketch)
a) Compartment receiving the soap flakes,
b) One half of milers,
c) Scraper,
,l) !Norm,
e) ]'late with fine perforations,
/) Rotary knife,
g) Chat,,,
h) Other half of roller.
Automatic high-efficiency soap mill.
Manufahturers: Nagema VVB, Dresden-A.35
Latest Designs in Still-Projectors
The projection of stills will for all
times exist beside the projection of mo-
vies. Especially black-and-white as well as
coloured miniature frames can be project-
ed with simple and conveniently priced
models. The midget among still-projec-
tors is the Miniature Projector 100 W,
manufactured by the Carl-Zeiss-Werke
VEB, Jena. It serves for the projection
of 5 X 5 cm. transparencies as well as
24X 36 min., 24X 24 mni., and 18X 24 mm.
positive strips. Its light source, a 220 VI
100 W lamp or a 110 V/100 W lamp, may
he connected with the mains directly and
without resistance. The projector is suit-
able for home and school use. Even with
coloured transparencies and projecting
distances up to 8 metres, sufficiently
bright pictures with
at, over-all clarity
are achieved. It is
equipped with a 100
min. f 3.5 Triplet
lens. - For project-
ing-distances of
more than 8 metres,
tie Miniature Pro-
jector 250/375 W of
tic same manufac-
t' rcrs is suited best.
Vvith this projector,
ti.c same frame sines
may be used as with
he one described
-above. For illniuin-
ation either a pho-
to-flood lamp 220V/
a resistance connected in series, is used.
This model is fitted either with a 1.00
mm. f 2.8 Triplet lens or with a 165 mm.
f 2.2 Kipronar lens. Furthermore, this
projector is suitable for stereoscopic pro-
jection, if there is applied a system of
prisms to he attached to the front side
of the objective. In this case, however,
the projected picture has to be watched
through special spectacles.
For the direct projection of pictures
and written text (without transparencies),
an epidiascope is used. An especially re-
commendable apparatus of this kind is
the Bulb Epidiascope, manufactured by
the Carl-Zeiss-Werke VEB, Jena. Illumin-
ation is provided by two lamps of 110 volt
and 1000 watt each in connection with
big asphcrical illumination mirrors. Using
220 volt mains, it is necessary to connect
a resistance in series, since the lamps are
switched individually. The heat pro-
tection is brought about by glass filters.
The table surface of the apparatus meas-
ures 44X58 cm. With a hand wheel
coupled to a spindle drive, it is lifted
towards the 20X20 cm. projection dia-
phragm, whereafter it is moved back into
its original position. Furthermore, a dia-
set for the sizes 8.5X8.5 em., 8.5 X 10 em.,
and 9X 12 cm. is directly connected with
this epidiascope. This dia-set has its own
illumination. For transparencies 5 X 5 cm.
as well as for positive strips on 35 min.
film, an additional adapter for miniature
frames can be used. During projection it
is possible to change from one kind of
projection to the other. Measurements
of the epidiascope: surface of base 52X
90 cm., height (without mirror mount)
130 cm.
Another still-projector is time "Belsa-
zar", manufactured by the Carl-Zeiss-
Werke VEB, Jena. It is an apparatus for
the projection of script. It is one of the
features of this model that one can pro-
ject script even while writing it. Besides,
it can be rebuilt into an X-ray projector.
As a script projector, the "Belsazar" re-
places the black-board. The lecturer
writes on a cellophane tape, and the writ-
ing appears on the projecting screen as
he is taking it down. Instead of wiping
the black-board, as he had to hitherto,
the lecturer simply moves the cellophane,
tape by means of a control button. How-
ever, it is also possible to take down the
text on the tape already before the lec-
ture.
Furthermore, transparencies as well as
some chemical and physical experiments
can be projected with the "Belsazar".
Instead of cellophane tape, ground glass
can be employed as well. A 500 watt lamp
for 110 or 220 volt serves as light source.
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 rtes nrenAo r~Oev d For Release )0302101104
l' CIA-RDP83 004158010100150001-1ical
face over bottom of apparatus 340 torn., of table surfarr ';SOX438 mm.
total height to upper mirror edge Wood-Working Tools
"Beica" and "Belfoca"
"Belca" and "Belfoca" are two cameras
with an image area of 24X36rnm.. or
0 X 9 em., respectively. The "Belca" mi-
niature camera is of the drop-bed. :,elf-
erecting front type. On pressing the bed
lock button, it opens, and a robust strut
inechanism puts the objective in position
ready for action. The camera is either
equipped with it 5 cm. f 3.5 Zeiss-Tessar
lens in Rapid Compur shutter with speeds
up to 1/500 sec., or with a S cm. f 2.9
Meritar lens in Cludor shutter with speeds
up to .1./200 sec. The film flattenin, is
well provided for. An automatic winding
stop prevents the film to be transported
by more than one frame at a time. A
further feature is the exposure-counting
dial. The "Belca" uses standard 35 tun.
film. After having exposed the film, it is
rewound into a cartridge and may be
removed from the camera in daylight.
The eye-level optical tube-sight finder
is fitted with a cam disc. By means of this
disc, the finder aim is altered in close-up
work. thus ensuria.g elimination of paral-
lax. For ascertaining the zone of focus, a
depht-of-focus table is attached to the
outer surface of the camera back. An
ever-ready carrying-case warrants quiet,
manipulation of the camera. Measure-
ments of the camera: 1:2.7 X 8.4 X 4.4 cm.
Weight approximately 13 ounces.
The "Belfoca" camera, too, is quickly
ready for action. Even without enlarge,-
turn t, fits negative size of` 6X9 cm. is very
effective. Of all-rnetall .onstruction, the
body is covered with leatherette. In spite
of this, the camera weighs only about
18"/4 ounces. A brilliant and a wire-finder
are built onto the camera. Not in action,
the "Belfoca" is protected by a leather
case with neck trap, thus eliminating
the danger of being damaged. Its lens is
as fast as f 4.5. and its butter provides
for long and short exposure times up to
r/uw sec. Measurements: 16.1 X8.5X4.1
cot. -
I loth cameras are s.ipplied by the
Phutovertrieh Dresden-11.21.
LEIPZIG Fans 11152
Seple/nher 7 to 17
including Technical Farr
The Great Inlernatio/1aI Markel
Electrical wood-working tools are
appreciated both by large and' small
firms, because they are practical and' can
be easily approached to bulky work. Fur-
thermore, these machines can be used ins
the workshop and on mounting-sites.
Finally, small enterprises also appreciate
these electric tools as stationaryrnachines.
.A special firm manufacturing electric
wood-working tools is Maschinenfabrik
Jonsdorf VEB, Kurort Jonsdorf, Kr.
Zittau. This firm produces a hand planing-
machine, a hand band-grinding machine.
and a hand disc-grinding machine.
The small hand planing and smoothing
machine, model 1-IM 51, is particularh
suitable for carpenters', shipbuilding, and
mining, as well as general wood-working
purposes. The machine is driven by an
external rotor motor built into the cutter
shaft. Its power output amounts 70 1 kw.
The speed of the cutter shaft is 280 r..p.rn.
The planing width amounts to 260 mm..
the largest cutting depth, which can he
adjusted accurately to 1/io of a men. by
turning a handle, is 3 mm. The complete
machine weighs only 25 kg. net.
The hand grinding-machine, model
BS 51, is suitable for grinding and honing
all kinds of woods, which can be imme-
diately stained or polished. The power
output of the motor amounts to 11.7 kw..
its speed is 1450 r.p.m. The measurements
of the grinding hand are 860 X 95 mm. The
grinding surface amounts to 100X 140rnm.
The grinding band can he exchanged by
a few manipulations. The tension and
true running of the grinding hand can be
easily regulated, so that its wear is low.
The machine weighs 17 kg.
The hand disc-grinding machine. model
'1'S 51, is a perfect hand grinding-machine
for all kinds of wood and venecred sur-
faces, for dry and wet operation. The
wood ground on it can be painted, stain-
ed, and polished at once. The machine can
also be used as a bur-milling machine. It
is provided with a firm machine base.
hence no brush crown. This permits also
small surfaces to be ground plane. The
grinding pressure can be accurately ad-
justed. A remarkable feature is its ellip-
tical grinding surface, whereby the con-
sumption of glass paper is particularly low.
The output of the built-in motor amounts
to 0.88 kw. The speed of the grinding
disc is 2780 r.p.m. Tho largest diameter of
the grinding disc is 185 mm. The machine
weighs 16 kg. net.
All machines mentioned above are
constructed in accordance with VDE
standards and can be connected to 380
and 220 V three-phase current. Motors.
switches, and hall-bearings are encased
dust-proof.
I for aacgegebern vcuu I t ipziger Ttc,.eawt .Is _ 1;uur kripi godriu kl. I, r hdruedi riaubt. Alte Autlauifte torch Leipzig"'. Ale-cat, Leipriq, C 1,
oved'Ftoreleaseib0~ib1o':ttC~-~R1~18"
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