Determination of charge on a electron by measuring a known distance on the basis of number of times of fall under gravity and of rise in uniform vertical electrostatic field in a series of charged oil drops.
A series of models to demonstrate different gearing systems.
With transparent slideplates, the gears may easily be seen and where necessary there is an index on the primary and secondary shafts to show the change in the direction of rotation and the relative speed of rotation.
A simple three-speed and reverse-gear system using spur gears.
Reverse gear is obtained by interposing a small lay-shaft mounted pinion between the two main shafts.
Gear selection is by means of a short ball-ended lever.
For use with motor/generator to give an indication of their output when used as dynamos.
The lamp-holders are connected in parallel.
Supplied with three lamps 3.5 V 0.25 A, M.E.S.
Represents internal structure and operating principles of an air cooled two-stroke engine.
All parts in aluminium alloy.
Ignition is shown by means of a miniature bulb.
Carburetter and fuel supply also sectioned. Mounted on base with printed diagram showing working.
Two-Stroke Petrol Engine Four-Stroke Petrol Engine are also available.
Highly useful for demonstrating the most fundamental and frequently used mechanism.
Very useful for engineering students.
All the components are made of high degree of precision.
These modules are assembled on transparent perspex sheets to facilitate teaching.
Easy to assemble or disassemble.
Operation of a commercial steam engine is well illustrated with this working model.
The extra large size unit is provided with a horizontal boiler with a whistle, safety valve, steam gauge, on metal base.
Operates on 220V A.C. 50 Hz.
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