| 摘要 |
A steam pressure-propelled toy which floats on water comprising a boiler formed of a flat metallic hollow body from one end of which there project a pair of output pipes having open ends which are positioned below the water surface and a float body on which the boiler is mounted. Heating of the boiler is attained by a boiler heating mechanism such as an alcohol lamp or candle, and steam pressure ejected from the output pipes is utilized to provide a propulsive force. The open ends of the output pipes can change direction to advance or retreat, turn, or raise or lower the float body, and thus very interesting movements are attained.
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