Showing 50 of 25456 papers

A Note on a Preloaded Bolted Connection: with 2 Tables

I. I. Bobarykov
1911 SovietRxiv: ru-191101.07241

This note analyzes how preliminary tightening affects the stresses in a bolted connection subjected to later axial loading. It derives torque, thread friction, torsion, and elasticity relations for rectangular and triangular threads, showing that the additional load carried by the bolt depends on th…

THE LOWER CARBONIFEROUS LIMESTONE

M. Janischewsky
1911 SovietRxiv: ru-191101.07235

This study examines the Lower Carboniferous limestone near Chabarny in the Orsk district, based on field observations, stratigraphic sections, and paleontological collections from the author and earlier collectors. It describes the local topography and geology, the relations of Devonian and Carbonif…

The Fedorov or Universal Optical Method: with 3 tables: [conclusion]

Unknown
1911 SovietRxiv: ru-191101.07234

This concluding part of the study presents practical procedures within Fedorov’s universal optical method for petrographic microscopy, especially the measurement of thin section thickness, birefringence, and feldspar twin relations. It derives correction formulas for focusing measurements in diverge…

Calculation of Walls in Tatarinov's Press: With 1 Table

S. K. Konyukhov
1911 SovietRxiv: ru-191101.07233

This paper develops approximate engineering calculations for determining the wall thickness of the folding bellows, or harmonica, in Tatarinov’s press. It resolves the pressure on a conical press link into components, derives formulas for tensile rupture in different directions, and compares the res…

Theory and Design of Pithead Structures: with 1 table

Unknown
1911 SovietRxiv: ru-191101.07232

This paper develops calculation methods for mine pithead headframes, with emphasis on pyramidal, prismatic, combined, and spatial truss arrangements used in wooden and iron structures. It derives analytical stress formulas from equilibrium and moment equations, supplements them with graphical constr…

Rational analysis of clays

A. E. Sabek
1911 SovietRxiv: ru-191101.07231

This paper surveys the development and contested status of rational analysis as a method for determining the mineralogical composition of clays beyond ordinary quantitative chemical analysis. It traces the method from Forchhammer through Brongniart, Malagutti, Seger, Aron, and later technical and Ru…

Alexander Eduardovich Sabek (1864-1909), with portrait

Unknown
1911 SovietRxiv: ru-191101.07230

This biographical article commemorates Alexander Eduardovich Sabek, a Russian technical scientist and professor of mineral technology at the Tomsk Technological Institute. It traces his education, early work in paper and sugar factories, foreign assignment, and subsequent role in organizing laborato…

On a New Isomer of Heptane, Symmetrical Tetramethylpropane or Methyl-2-methyl-4-pentane, and on Its Presence in Caucasian Petroleum: with 1 table

(Diploma work).
1910 SovietRxiv: ru-191001.07446

This study describes the synthesis and characterization of the heptane isomer symmetrical tetramethylpropane, also termed methyl-2-methyl-4-pentane, and examines whether it occurs in Caucasian petroleum. The hydrocarbon was prepared from dimethylisobutylcarbinol via the corresponding iodide and redu…

From the Imperial Academy of Sciences

Unknown
1910 SovietRxiv: ru-191001.07441

This notice from the Imperial Academy of Sciences announces prizes for scholarly work on Mikhail Lomonosov in connection with the bicentenary of his birth. It defines the scope of the grand prize for a comprehensive scholarly biography, requiring assessment of Lomonosov’s contributions across the na…

The Influence of Low Mountain Passes on Virtual Calculations

S. A. Vvedensky
1910 SovietRxiv: ru-191001.07437

This paper examines how low mountain passes affect railway “virtual length” calculations used to compare route alternatives and estimate traction costs. It argues that conventional methods, which assume uniform motion, instantaneous speed changes, and simple conversion of gradients into equivalent h…

Catalog of the Library of the Tomsk Technological Institute of Emperor Nicholas II. Section 2. Pure Mathematics: Supplement 2

Unknown
1910 SovietRxiv: ru-191001.07436

This publication is a supplementary catalog of the pure mathematics holdings of the Library of the Tomsk Technological Institute of Emperor Nicholas II, issued as part of the institute’s proceedings in 1910. It lists newly recorded works with inventory and shelf numbers, organized mainly by alphabet…

Review of the works of A. Ya. Milovich

V. N. Pinegin
1910 SovietRxiv: ru-191001.07435

This review evaluates two works submitted by A. Ya. Milovich for the chair of hydraulics and hydraulic engines at the Tomsk Technological Institute: a study of Francis turbine blade design by Pfarr’s method and an essay on the theory of the suction pipe. Pinegin situates these works within contempor…

On the Works of Mechanical Engineer A. Ya. Milovich "Designing Francis Turbine Blades by Prof. Pfarr's Method" and "An Attempt at a Theory of the Draft Tube"

Unknown
1910 SovietRxiv: ru-191001.07432

This review assesses A. Ya. Milovich’s studies on Francis turbine blade design using Pfarr’s method and on the theory of the draft tube, situating them within contemporary efforts to apply hydrodynamic equations to turbine theory. Astrov summarizes Milovich’s use and extension of Prášil’s approach t…

On the Coefficient of Metal Cutting: With 2 Plates of Drawings

T. I. Tikhonov
1910 SovietRxiv: ru-191001.07428

This paper examines the coefficient of metal cutting, understood through chip formation, tool geometry, cutting resistance, and machining conditions. It reviews earlier experimental work by Time, Joessel, Zvorykin, Gausner, Sellergren, Taylor, and others, comparing methods for measuring tool pressur…

Regulations on the Procedure for Preparing Candidates to Occupy Professorial Positions in Higher Specialized Educational Institutions of the Ministry of Public Education

Unknown
1909 SovietRxiv: ru-190901.07426

These regulations set out the Ministry of Public Education’s procedure for preparing candidates for professorial posts in higher specialized, particularly technical, educational institutions. They define the selection of distinguished graduates, the duration and funding of stipends, required scienti…

Report on an Overseas Business Trip

Unknown
1909 SovietRxiv: ru-190901.07425

This report describes S. V. Lebedev’s international study trip devoted to food technology, especially fermentation industries and related sugar production practices. It explains the rationale for focusing on fermentation technology, then summarizes work in A. Jörgensen’s Copenhagen laboratory on mic…

Catalogue of the Library of the Tomsk Technological Institute of Emperor Nicholas II. Section 4. Astronomy and Geodesy

Unknown
1909 SovietRxiv: ru-190901.07420

This publication is a classified catalogue of the Tomsk Technological Institute Library holdings in astronomy and geodesy, with a short supplementary section for theoretical mechanics. It records Russian and foreign language books, articles, atlases, maps, dissertations, and reference works, giving …

Temperature Measurement

Unknown
1909 SovietRxiv: ru-190901.07418

This work presents a systematic guide to temperature measurement for scientific and technical use, addressing the lack of a comprehensive manual that combines theory, instrument construction, practical handling, and calibration. It organizes thermometric methods according to the physical phenomena e…

Review and Results of Russian Literature on the Issue of Artificial-Biological Wastewater Treatment (up to Mid-1908)

Unknown
1909 SovietRxiv: ru-190901.07417

This review compiles and assesses Russian-language literature on artificial biological wastewater treatment published up to mid-1908. Based on a survey of books, pamphlets, journal articles, congress proceedings, and institutional reports, it identifies the principal Russian contributions, distingui…

On the Rectification of Alcohol in Batch-Operated Apparatuses

Unknown
1909 SovietRxiv: ru-190901.07413

This paper examines the chemical purification of raw alcohol before rectification in batch operated apparatuses, with the practical aim of improving first grade alcohol yield and quality as an alternative to charcoal filtration. Drawing on analyses of raw spirits, laboratory trials, and factory dist…

Single-Phase AC Commutator Motors: Article One

Unknown
1909 SovietRxiv: ru-190901.07411

This article surveys and develops the theory of single-phase alternating-current commutator motors, motivated by their potential use in long-distance electric traction where direct-current systems require costly conversion infrastructure. It compares principal motor systems, including shunt, series,…