| 摘要 |
A film heating apparatus includes a vertical tank vertically adjustably mounted on a base supported post, a hollow vertical roller extends between and is journaled to brackets projecting from opposite ends of the tank, an electric motor driven pump mounted on the tank circulates a heat transfer liquid through and between the roller and tank through a rotary coupling mounted on the roller, the liquid in the tank being heated by an immersion electric heater which is energized in response to a temperature sensing member responsive to the liquid temperature and a second idler roller is supported between the brackets and is transversely spaced from the first roller.
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