Description
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Ring & Ball
An apparatus for demonstrating thermal expansion, comprising a captive brass ball secured to a mounted brass ring by a chain.
Ring mounted on rod with a wooden handle. The ball passes through the ring when cold but will not pass through after being heated. Ball dia. 25 mm.
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Balance Lever, Dual Range
Single Pan Balance with chrome plated Cast aluminium frame.
A direct reading, single pan balance with its scale in the form of a quadrant.
The arc scale is graduated in dual ranges of 0-250 x 1 g and 0-1000 x 5 g which can be set using the weight arm provided.
Cast aluminium frame with all steel parts chrome plated. Leveling screw for zero adjustment.
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