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.
A model of two-stroke diesel engine made in aluminium alloy and gun metal.
Ignition is shown by means of a miniature bulb. Fuel supply is also sectioned.
With hand crank, provided for manual operation.
Mounted on base.
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.
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 as a water turbine to drive a generator producing electricity or for use as a pump driven by a motor and raising a head of water to produce potential energy.
The rotor has eight 'bucket' blades and is housed in a block turbine chamber with a clear Perspex front.
Two inlet tubules (for turbine and pump operation respectively) and one outlet tubule are provided and the shaft carries a 15 mm.
diameter pulley.
With driving belt.
To show conversion of mechanical energy into electrical energy.
Turbine with transparent cover, inlet and outlet tubes, directly connected to a dynamo. Fitted on base.
This model uses the same basic assembly as the motor, but is mounted on a baseplate 230 x 90 mm approx.
which also carries a hand-drive pulley 120mm.
diameter coupled to the smaller dynamo pulley by a rubber belt to give a step-up ration.
Electrical output is via a pair of 4mm sockets.
The model may also be used as a motor on a 6-8 V D.C. supply.
To show the forces which can be exerted during thermal expansion or contraction.
Comprising a heavy cast iron frame 340x120x100mm with slotted end pillars to carry a stout iron bar.
The bar is threaded at one end for a large tensioning nut and has holes at the other end to accommodate the cast iron breaking bars.
Supplied complete with ten breaking bars.
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