Museo The History of Physics and Mathematics Museum

Conversion of the continuous rotational motion to reciprocating rotational one

Odhner Arithmometer

Heart-shaped eccentric (cam)

Set of hydrometers

Lagaruss lever

Personal armchair of V.A.Fock, academician of the USSR Academy of Sciences

The model of a gravity stamp hoisted up by a gear wheel

Thesis by O.N. Trapeznikova

Bevel gear

Professor O.N. Trapeznikova

Conversion of the continuous rotation to the continuous one

Drawings by O.N. Trapeznikova

Translation of motion from one shaft to another by means of a knee joint

Magnet on the laboratory stand

Horizontal tooth chisel actuated by a swinging lever (rod) with a rack circle

Optical spectrometer produced by Franz Schmidt &Haensch

Tooth wheel inclining a frame to straight reciprocating motion

Umformer produced by Western Electric

Tooth wheel driven by a handle with cogs

Comparator

Shaft with two conical tooth wheels

Amperemeter produced by Siemens&Halske

Eccentric

Amperemeter

Horizontal shaft with a circle against which a movable bar abuts

Optical spectrometer produced by Adam Hilger Ltd.

Wheel with screw shaped claws

Monochromator

Conversion of straight reciprocating motion to reciprocating rotational one

Full-scale thermal model of the ALIS experiment

Load lifting by means of a shaft and a rope actuated

Motion of a body under a certain equation between translational and angular velocities

B-group of the Reuleaux models (B.1-B.4)

Rolling Cones for 3:1 Diameter Ratio (R.4)

Reuleaux curved duangle in a triangle (B.1)

Spherical Four-bar Linkage (C.3)

Four-Bar Linkage with Reduced Centrodes (D.5)

Thumb Shaped Gear Teeth Profiles (Q.5)

Involute Gear Tooth Profile

Thumb-shaped Teeth, Rack and Pinion

Davies Spherical Engine (F.6)

Compound Gear Train (G.1)

Compound Gear Train with Reversing Pinion Gear (G.6)

Reuleaux curved triangle in a square (B.2)

Root's Blower (I.3)

Spur Gears Mixed-teeth Profiles (Q.1)

Oldham’s Coupling

Double Slider Trammel Ellipse Tracing Linkage (S.2)

Hypocycloid Straight-line Mechanism (S.16)

Oblique Double Slider Ellipse and Straight-line Mechanism (S.4)

Belt Guide for Parallel Axis Pulleys (V.4)

Conic Involute Gear (№ 49)

Curved Triangle in a Rhombus

Planetary Gear with Slider Crank (O.4)

Curved Triangle Variation in a Square (B.4)

Payton Co-rotating Spiral Pump (I.4)

Dart's Chamber Wheel Mechanism (I.7)

Revillion Screw Chamber Wheel Mechanism (I.8)

Four-bar Linkage Straight-line Mechanism after Evans (S.5)

Approximate Four-bar Straight-line Linkage of Roberts (S.14)

Peaucellier Straight-line Mechanism (S.35)

Six Link, Straight-Line Chebyshev Mechanism

Spherical Cycloid for a Plate Rolling on a Cone (R.1)

Rolling Cones (R.2)

Circular Plate (or Cone) Rolling on a Cone (R.3, R.6)

Slider-Crank Linkage with Reduced Centrodes (D.6)

Spur Gears, Involute Teeth Profiles (Q.3)

Shield Gearing, Disc Wheels (Q.7)

Double Planet and Gear Trains on Parallel Axes (G.5)

Pappenheim Chamber Wheel Mechanism

Gear Wheels (№ 48)

Belt and Pulley Drive Between Two Non-parallel Axes

Cross Link Straight-line Chebyshev Mechanism (S.19)

Reuleaux-Voigt Catalogue, Section II

Reuleaux-Voigt Catalogue, Section I

Franz Reuleaux

F.Reuleaux. Eine Reise quer durch Indien im Jahre 1881

Reuleaux models of the Q-group

Reuleaux models of the R-group

Reuleaux models of the S-group

A.I. Buravtsev

Professor I.P.Mysovskikh

Professor T.A. Agekyan

Professor V.G.Gorbatskiy

Professor K.F.Ogorodnikov

Associate Professor A.A. Tikhonov

Diary of A.A. Tikhonov's father

Academician of the USSR AS, Professor L.V. Kantorovich

Associate Professor G.P.Samosyuk

Corresponding Member of the USSR AS S.S.Lavrov

Professor B.A. Ershov

N.N. Dmitriev

Associate Professor V.Y. Pavilainen

Figure 3

Figure 7

Figure 9

Orion

Pegasus

Big Dipper within the constellation Ursa Major

Fingers, tally sticks and knots

Tally sticks

Abacus and Russian county frame

Jean-Victor Poncelet

Astrophysical constants

Construction of hypotrochoids

Spirograph

Construction of epitrochoids

Construction of the evolvent of circle

Construction of cycloids

Epicycloidal rotation of a rigid solid

Pericycloidal rotation of a rigid solid

Mixed rotation form

Martin Schilling's Catalogue

Page from M.Schillings's Catalogue

Plantigrade machine

Mechanism providing two driven link oscillations per crank revolution

Two-dwell mechanism

One-dwell mechanism

Long-dwell mechanism

Mechanism for transforming rotation into translational motion

Six-bar reversing mechanism

Paradoxical Mechanism

Photo "Memorial sign"

Participants of the Chebyshev conference

Alexander Mikhailovich Lyapunov

University Charter of 1863

The first wooden exhibits of the Cabinet of Practical Mechanics

I.V. Meshchersky

Mosaic on the facade of the Faculty of Mathematics and Mechanics of St. Petersburg State University

Heart-shaped eccentric (cam)

Lagarus lever

Horizontal tooth chisel actuated by a swinging lever (rod) with a rack circle

Collection of Problems in Theoretical Mechanics by I.V. Meshchersky.

The model of a gravity stamp hoisted up by a gear wheel

Odhner's Arithmometer

laboratory scales

Demonstration model of an ammeter

Portable voltmeter

Barograph

Plantigrade machine

Cross Link Straight-line Chebyshev Mechanism

Reuleaux curved triangle in a square

Device. Insert for optical bench - Fresnel bismir (prism).