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| RT5020 Linear Expansion
Apparatus |
| For study of principle of expansion of various metals
by heating. Consist of two uprights linked by two rods,
supporting an expansion bar, length 38cm, fixed to the
upright and resting on a friction pointer placed at the
other end. With reading 0 to 90°. With one each aluminium,
steel and brass expansion bars. |
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| RT5021 Precision Linear
Expansion Apparatus |
| Elongation of rod is measured by a dial indicator sensitive
to 0.01mm. This apparatus is 10 times more accurate than
other similar units. Includes one each aluminium, steel
and brass bars. |
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| RT5023 Conductivity Kit |
| Comprising rods of different materials and some of different
thickness to enable students to test for themselves different
thermal conductivities. Kit comprises: |
| Category |
Diameter (mm) |
Qty. |
| Aluminium |
3 |
8 |
| Glass |
3 |
8 |
| Brass |
1.5 & 3 |
8 each |
| Copper |
1.5 & 3 |
8 each |
| Iron |
1.5 & 3 |
8 each |
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| RT5024 Bar Breaking Apparatus |
| To demonstrate the forces exerted on expansion and contraction.
Consists of a rugged structure with slots at both ends
to place an iron bar. The bar has holes at one end to
hold breaking bars. With 10 breaking bars. |
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| RT5027 Ball and Ring |
This brass ball and ring demonstrates thermal expansion
of the metals. The ball passes through the ring freely
when both are at same temperature whereas the ball will
not pass through the ring when heated. Comprises of a
25mm dia brass ball and a brass ring both attached to
separate wooden
handles. |
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| RT5028 Ball and Ring with
Chain |
| This brass ball and ring demonstrates thermal expansion
of the metals. The ball passes through the ring freely
when both are at same temperature whereas the ball will
not pass through the ring when heated. Comprises of a
25mm dia brass ball attached to the ring with a chain. |
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| RT5030 Bar and Gauge |
| To show linear and superficial expansion. Comprises
of an iron bar fixed to a support rod with a wooden handle
and a gauge with a cut out to admit the bar and holes
which pass the bar endways when cold but do not when hot. |
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| RT5031 Compound Strip |
| For demonstrating unequal expansion of different metals
upon heating. Comprises a strip of brass and iron, 20x2.5cm
with wooden handle. |
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| RT5034 Ingen-Hausz’s
Apparatus |
| Made of stout tin sheet, nicely painted, with handle.
Comprises of 4 equal rods of aluminium, copper, iron and
brass, mounted in corks with one end in the tank. |
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| RT5035 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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| RT5036 Heat Conductivity
Apparatus |
For demonstrating the rate of heat conduction in five
different metals. The kit consists of five metal rods,
approximately 20mm in diameter and 40mm long equally spaced
on a brass disc and mounted on an insulated handle. The
rods are aluminium, brass, copper, iron and steel and
each having a
cavity at the end for holding paraffin. |
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| RT5038 Convection in Air
Apparatus |
| For showing convection currents in air. Comprises of
metal box, 220x100x100mm with a removable glass front,
two chimneys and candle holder fixed to the base of the
box beneath the left hand chimney. |
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| RT5039 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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