Physics Instruments

With motor, unit capabale of rotating a small propeller, mounted on mini motor to explain conversion of solar energy into mechanical energy.

Contains components to construct six motors.

Mounted on wooden base, workable on 4-6 volts D.C. With Newton’s colour disc.

For showing slow A.C. on an oscilloscope or meter or for demonstrating the use of a dynamo mounted in lighting a lamp. The apparatus has a cycle dynamo mounted on a base and provided with two sets of gears driven by a hand crank for fast and slow rotation. Two 4mm socket terminals are provided for the dynamo output, connected in parallel with an M.E.S. lamp holder and 2.5V bulb. Dimensions 220x115x105mm high.

With hand driven pulley coupled to the smaller dynamo pulley by a rubber belt to give a step-up ratio, to generate both A.C. and D.C. current. Electrical output is via 2 pairs of 4mm sockets (A.C. & D.C.) and two lamp holders and bulbs.

A functional glass model of the earliest form of steam turbine. Comprising of a borosilicate glass bulb 70mm dia. approx, with side arms bent at right angles and formed into jets at their tips. The bulb is carried upon a metal stand, which leaves it free to rotate about its horizontal axis. If about 25 to 30cm of water are introduced into the bulb and boiled, the issuing steam causes rapid motion. Supplied complete on stand but without burner. Dimensions of base 180x120mm

Represents internal structure and operating principles of an aircooled two stroke engine. All parts in aluminium alloy. Ignition is shown by means of a miniature bulb. Carburettor and fuel supply also sectioned. Mounted on wooden base with printed diagram.

Its is an all-metallic construction model showing metal cylinder in section cut and is covered with glass plate. Complete with working parts like piston, slide valve, link motion and reversing method can be demonstrated. The movement of the wheel is very smooth to demonstrate the working even by blowing from mouth.

Capable of running a small dynamo to light the lamp with the help of its flywheel and drive gear. Complete with pressure gauge, whistle and safety valve. The model is mounted on thick metal sheet base. Overall dimensions 410x325x370mm length x width x height approx.

Metal box with 12V 24W straight filament lamp. The body is fitted with a cartridge holding 4 types of slits, single, double, triple wide slots with colour filters. It carries a convex cylindrical lens. Long clear tracks parallel, converging or diverging are obtainable. It can be used for demonstration of path of rays with light demonstration guide.

Optically worked faces, ground edges, white glass, well polished size 50x45mm.
A Plano Convex
Focal Length 6cm Focal Length 7.5cm
Focal Length 10cm Focal Length 15cm
B Plano Concave
Focal Length 6cm Focal Length 15cm
Focal Length 30cm
C Bi-Convex
Focal Length 7.5cm Focal Length 15cm
Focal Length 20cm
D Bi-Concave
Focal Length 7cm Focal Length 15cm
Focal Length 20cm