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Nicholson?s Hydrometer
Made of nickel plated brass and for liquids lighter than water.
Floats exactly vertical when loaded. Supplied without masses.
Approx. 25cm long.
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Bell in Jar
For demonstrating the principle that sound waves do not travel in vacuum. Consisting of a glass bell jar, with bell mounted on a rubber stopper and electrical terminals.
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Bourdon Gauge
For the measurement of actual (absolute) gaseous pressure.
This apparatus is a laboratory demonstration version of the standard Bourdon type of pressure gauge widely used in industry. The instrument comprises of a circular gauge having 2 an overall diameter of 100mm. The dial read 0 to 100 lb/in 2 and 0 to 7 Kg/cm . The gauge is carried upon a circular pillar 19x16mm diameter. A tubing 8mm diameter projects from the side of the pillar to provide connection with the system under investigation. The complete apparatus is provided with a heavy cast iron base.
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Manometer, U-Tube
Easy to use manometer. Consists of a large U-shaped tube 50cm high and 2.5cm in diameter. The unit is mounted on a hardwood support with a metric ruler on both sides.
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Boyle?s Law Apparatus
Comprising two glass tubes, one closed at the top and the other open. Their lower ends are connected together by 1metre of rubber pressure tubing. Both tubes are mounted on sliding brackets which may be locked in any position on the metal supporting rods. The stand, made of metal, carries a scale graduated from 0 to 100cm in the center. Supplied without mercury.
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Conductivity of Metals Apparatus
For demonstrating the thermal conductivities of metals. Consist of strips of copper, aluminium, iron and brass, fixed on a ring, meeting in the center with small cups formed on the outer ends.
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Convection Tube
For demonstrating convection in liquids. Glass tube of 20mm diameter bent into a rectangle of approximate size 38x30cm, fitted with a funnel.
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Expansion of Liquids Apparatus
For demonstrating the difference in expansion of different liquids over the same temperature. Consisting of five glass tubes with bulb of equal capacity mounted on a support, with scales and metal trough to hold hot water.
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Thermal Conductivity Apparatus, Lee?s
For determining the thermal conductivity of bad conductors. Three copper discs 42mm diameter x 12mm thickness each drilled to support a thermometer. A 6V D.C. Electric heater with wires led out to 4mm sockets and clamped in a wooden frame by means of a plastic screw.
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Leslie?s Cube
Hollow cube of 125mm side made from tin sheet with an opening at the top. The vertical surfaces are dull black, bright black, white and bright.
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Compass, Magnetic
Compass in aluminum case. Marked 0-360?, with eight directions.
Diameter 45mm.
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Compass, Plotting
Useful for plotting magnetic lines of force. Both sides glass. Diameter 19mm.
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Compass, With Cover & Lock
Aluminum case. Diameter 45mm. Provided with a cover and a locking mechanism to lock the pointer.
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Compass, Magnetic, Small
Aluminium case, glass top.
Diameter :
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MASS SET, HEXAGONAL
For general science and physics laboratory work. All are made of stove enamelled cast iron masses except the 10g and 20g masses which are made of polished brass. Packed in a cardboard box. Set of 5 masses: one each of 50g, 100g, 200g, 500g and 1000g
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