Expansion / Conversion
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CROOKES RADIOMETER SINGLE |
| Code:GP - 395.1 |
Evacuated glass bulb of approx. 70mm dia having fine pivot at its centre which supports four light weight vane of mica 10 mm square approximately and blackened on one surface. Mounted on a bakelite stand. When exposed to sunlight or bright lamp the rotor rotates rapidly.
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THERMOPILE |
| Code:GP - 402.1 |
Consists of 24 pairs of bismuth and antimony bars connected in series and arranged in the form of a rectangular pile with the junctions equally divided between the two ends. The pile is mounted in a cylindrical housing provided with 4mm socket terminals mounted with a rod on a heavy metal base. A removable brass nickelled funnel is provided to fit over the ends of the pile.
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FLYWHEEL UNIT |
| Code: GP - 408.1 |
Comprising an iron flywheel 115mm diameter, mass 1.2Kg, mounted in cast brackets with nylon bearings. The shaft has an aluminium V pulley 44mm diameter, for driving with the spring belt.
Dimensions : Laminated wooden base 155x105mm.
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FRICTION CALORIMETER UNIT |
| Code: GP - 410.1 |
Comprising a brass cylinder, internal size 27 x 16mm diameter, with and integral V pulley in the base of the cylinder and a 6mm diameter steel shaft which fits into a bearing block. A vertical pillar carries the corklined friction arms and thermometer support. Supplied without thermometer.
Dimensions :
Laminated wooden base 155 x 105mm.
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HAND WHEEL DRIVING UNIT |
| Code: GP - 414.1 |
The driving and output pulleys are both 75mm diameter, and the intermediate pulley is 20mm diameter giving a step-up ratio of 3.75.
Dimensions : Laminated wooden base 155 x 105mm.
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LAMP UNIT, TRIPLE |
| Code: GP - 417.1 |
Three lamp holders are connected in parallel. Supplied complete with three lamps
1.25 V 0.25 A M. E. S.
Dimensions :Laminated wooden base 155 x 105mm.
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LINE SHAFT UNIT |
| Code: GP - 418.1 |
Comprising a 6mm steel shaft mounted in brackets with nylon bearings. One end carries an aluminium V pulley 56mm diameter, and the other over hanging end, is fitted with a cord anchoring collar.
Dimensions : Laminated wooden base 155 x 105mm.
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SPRING UNIT |
| Code: GP - 424.1 |
Comprising a steel shaft carries a clock spring with a free wheel device and winding ratchet. Also an aluminium V pulley 56 mm diameter. One end of the shaft overhangs the base for use as a line shaft when winding up a weight.
Dimensions : Laminated wood base 155x105mm.
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STORAGE BATTERY UNIT |
| Code: GP - 426.1 |
To demonstrate principle of lead/acid accumulator. Glass jar, 250ml with plastic screw cap, carrying 4mm socket terminals fitted to two lead plate.
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TURBINE / PUMP UNIT |
| Code: GP - 427.1 |
Comprising a rotor 40mm diameter has eight bucket blades and is housed in a block turning chamber 50 x 50 x 25mm, 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 15mm diameter pulley.
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