SCIENTIFIC - ENGINEERING, MATHEMATICAL MACHINES

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700210242-5
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 3
• Document Creation Date: December 14, 2016
• Document Release Date: January 10, 2002
• Sequence Number: 242
• Publication Date: March 24, 1953
• Content Type: REPORT

Approved For Release 2002/08/06 : CIA-RDP80-00809A000700210242-5
4 DOCUMENTS OR RADIO BROAC)CASTS CD NO.
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BEe Rri'T-1NFC T-ON L
CENTRAL INTELLIGENCE AGENCY R PORT NO.
INFORMATION FROM
Scientific - Engineering, mathematical
machines
Book
Moscow
1950
THIS DOCUMENT CONTAINS INFORMATION APFICTINO THE NATIONAL 0912Rit
OF THE UNITES StAllS M1T111N THE ^EAN1N0 OF ElPIORAlt ACT l0
Y. I. C.. CORl AND 8S.A8 AMENDED. 178 TRANSMISSION 00 THE REVELATION
OP ITS RT9MTB IN ART ^ANOR$ TO AN YNAYTMONIZSO PERSON IS POO-
H18118D -T LAM. REPRODUCTION OF THIS FONN IS P.OMI.I TOP
DATE OF
INFORMATION
DATE DIST. AV Mar 1953
NO. OF PAGES 3
SUPPLEMENT TO
REPORT NO.
A.P. Lakehin,
Cand Tech Sci
25X1
The building of qmv! t calculators has attained considerable development
during the period 1946 - 1950.
The calculators being produced, those with which we are becoming familiar,
and those in the design stage encompass all categories of calculating machine
building -- adding machines, calculators, computing-analytical machines, and
electrical machines of continuous action.
Adding Machines
Type SDU-110 adding machines are now being domestically produced.
This single-counter machine performs addition and subtraction with direct
balancing and simultaneous autcmatic printing of the numbers in a single column
on paper tape, showing the type of operation.
The reference mechanism is a ten-space mechanism showing the space of the
number which is set up on the machine. The counting mecnanism has a capacity
of ten spaces.
The two-cycle SDU-110 can be operated by touch at up to 1,400-'.,500 opera-
tions per hour (using four- and five-digit numbers, with results being taken on
an average of every 25 numbers)..
Another similar machine with a wider carriage (SDU-138) is now being,intro-
duced.
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The SDU-100 M, weighing 8 kg, is a smaller and more compact model of the
SDU-110, which weighs 15 kg.
All machines mentioned above are available iu either motor- or manually
operated models.
At present, steps are being taken to produce simple manual calculating
machines -- two types of arithmometers, using the Feliks and the Khokhlov sys-
tem.
Arithmometers are designed fundamentally to perform multiplication and
division.
The ordinary Feliks-type arithmometer has an eight-space rotation counter,
whereas the new Khokhlov type has a nine-place counter and increased carriage
travel.- These structural modifications have expanded the calculating capacity
of the arithmometer beyond that of the ordinary FeLiks type. The modernized
Khokhlov, according to reports from a number of scientists (e.g., Prof. V.P.
Vetchinkin and others), is finding considerable use in sciertific research work.
The machine-building industry is also putting out a new key-operated cal-
culator, the VK-2, which performs addition, subtraction, semiautomatic multi-
plication, and automatic division. The machine performs the arithmetical
operations without recording the results, It has electric drive and a perform-
ance potential of 300-330 operations per minute. The VK-2 has a ten-key
reference mechanism for nine places, an eight-place rotation counter and a
13-place result counter. There is u-endow in the case where the number which
is set up is registered visibly.
The manually operated VK-l and the fully automatic VK-3, both based on the
VK-2, are to be built and produced.
Along with the VK-type calculators, which perform the four arithmetical
operations without recording, there is to be introduced a new key-operated print-
ing calculator, type VD-110. The design of this machine for" the basis for a
full-text calculator with a wide carrieg' (invoice).
The VD-110 is of the universal. calculator type, giving a printed record
and having a complete, automatic cycle of operations. it performs all the
arithmetical operations, gives subtotals and balance, and prints results in a
single column on paper tape.
The use potential of this machine will. exceed that of the ordinary lever
arithmometers and the VK-types it has an 11-place reference mechanism, a
16-place counter and a 17-bar printer, including a bar for symbols.
An invoice machine on the basis of the ID-type is designed as a calculator-
typewriter combination.
Within the next 2-3 years, therefore, serial production of the following
types of calculators will be started: two types of lever arithmometers ten-
key manual calculators, ten-key semiautomatic machines with motor drive, ten-
key automatic calculators, printing calculators, and calculator-typewriter com-
binations.
ILLEGIB
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-PAWEMEMM
Calculating-Analytical Machines
The group of calculating-analytical machines presently being worked on
includes a 45-column tabulator, a perforator, a controller, and a sorter.
The machines are undergoing a number of design changes, and work is pro-
gressing on a completely new two-cycle perforator and controller.
The use potential of the machines is being considerably expanded. For in-
stance, production has begun on a two-cycle perforator designed to transfer nu-
merical content from an original registration document to a punch card. The per-
forations are punched in two processes, which facilitates cor?:ection of errors
and reduces rejects.
The K-45-1 controller designed to control the punches in the perforators
has been rebuilt, improving the machine's reliability and operating qualities.
The design of the 45-coiurn tabulai,cr has also been improved.
Series -production of result perforators was started in 1949. The machine is
a supplementary electromechanical dev:ce for the T4-M tabulator, and punches re-
sult data automatically in the p?:.nch cards fed to the tabulator; it also punches
identifying markings.
Final work is now being dcne on unitizing the T-i tabulator with the result
perforator and these units an? being produced serially. The perforator may also
be used independently as a perforator-dup1i'ator.
Hand-operated, the perforator 'an handle 2,000 cards per shift. An 80-column
perforator has been designed and work her been started on it. Work will also be
initiated soon on 80-column controllers and sorters, Work was also begun in 1949
on an 80-column tabulator, the T-5. The machine will have the following basic
parameters: 11-space counters, 8 s.unters, 20 autocontrol columns, 3 stages of
automatic control, and a maxiarsm of 83 mr.rks pez tabulagram line. The T-5 is
based or, the T4-M design.
With the development of this equipment, we will have about 15 forms of
calculating-analytical equipmment.
Continuous -Action Electrical Machines
The electrointegrators which came out in 1949 were designed to solve dif-
ferential equations. In addition to the types of vacuum-tube integrators which
are already being put out, viz., the FI:t-.b and ELI-12, on the Gutenmakher sys-
tem, a type EI-12 electrointegrator is now being worked on and is designed to
solve partial differential equations of the elliptical type.
The development of production and enlargement of types produced with re-
spect to all groups of calculating, calculating-analytical and electrical
machines, and continuous-action mathematical machines, is an extremely impor-
tant problem. Its solution will foster extensive mechanization of calculating
work and acceleration of computation processes, and. will release thousands of
persons presently occupied in the performance of calcilations by manual methods.
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ILLEGIB
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