Heat
Ball & Ring
Gravesende’s ring mounted on tripod stand, ball with chain. Cold ball passes through the ring but does not pass when heated.
PH20023
Availability:
In Stock
| Cat. No. | Ball diam mm | Quantity | |
|---|---|---|---|
| PH20023/1 | 19 | ||
| PH20023/2 | 22 | ||
| PH20023/3 | 25 |
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Heat
Expansion Apparatus
Two cast metal uprights, height 18 cm, fitted with two nickel plated rods supporting expansion bar of length 38 cm. Expansion bar is fixed to one upright and moves a pointer on the other, when heated. With scale reading 0 to 90°, supplied with one each, aluminium, brass and iron expansion bars.
PH20045
