带状的脚踏板木管
在整个西方州，机器带和连续的底座水管在过去十年中已被广泛使用，不仅用于灌溉，而且用于抽水目的，并用于在水力发电厂的高压下为水提供水。图1的随附图显示了一条大型连续的座椅管道，载着水，用于灌溉目的，横跨爱达荷州的布利斯附近的蛇河。该木管道的直径为72英寸，其经过的桥的长度为300英尺，构造为两个跨度，其中一个为200英尺，另一个是TTTN英尺长。此时，管道的压力为128英尺，并定于自安装以来为导管提供了出色的服务。图2显示了在犹他州用来抽水服务的较小尺寸的FIR阀木管的类似连续线。左侧的直径为20英寸，在400英尺的泵头下运行，相当于泵站的每平方英寸压力为172磅的压力，这在磨坊的拐角处显示。水是通过电动泵从水库中抽水的，用于犹他州加菲尔德的冶炼厂。用于操作冶炼机机械和泵的电力传输线在结构的右下点上注明。图2中显示了48英寸的建筑物的特征之一。该线路用于将水载入电源目的到水力发电站，该电源为电流提供电流，用于操作电灯和街道铁路对于华盛顿的Walla Walla市。 It is 28.000 feet in length and passes over many trestles and through tunnels in mountainous parts, conducting the water to the turbine in the powerhouse. The lowest point of the pipe line on one of these trestles is under a 300ft. head, which is equivalent to 130 pounds pressure per square inch. An incident showing the great reliability of this stave wood water pipe due to its great lightness is of special interest. The trestle at the point above mentioned in this pipe line during a freshet two years ago last spring was washed out. leaving the pipe suspended in midair for a span of 60 feet without injury to the pipe line and without leakage of water. This would undoubtedly have been difficult, if not impossible, were the oipe constructed of cast iron, on account of its great weight, or steel, owing to its liability to strain at the joints.
在整个西方州，机器带和连续的底座水管在过去十年中已被广泛使用，不仅用于灌溉，而且用于抽水目的，并用于在水力发电厂的高压下为水提供水。图1的随附图显示了一条大型连续的座椅管道，载着水，用于灌溉目的，横跨爱达荷州的布利斯附近的蛇河。该木管道的直径为72英寸，其经过的桥的长度为300英尺，构造为两个跨度，其中一个为200英尺，另一个是TTTN英尺长。此时，管道的压力为128英尺，并定于自安装以来为导管提供了出色的服务。图2显示了在犹他州用来抽水服务的较小尺寸的FIR阀木管的类似连续线。左侧的直径为20英寸，在400英尺的泵头下运行，相当于泵站的每平方英寸压力为172磅的压力，这在磨坊的拐角处显示。水是通过电动泵从水库中抽水的，用于犹他州加菲尔德的冶炼厂。用于操作冶炼机机械和泵的电力传输线在结构的右下点上注明。图2中显示了48英寸的建筑物的特征之一。该线路用于将水载入电源目的到水力发电站，该电源为电流提供电流，用于操作电灯和街道铁路对于华盛顿的Walla Walla市。 It is 28.000 feet in length and passes over many trestles and through tunnels in mountainous parts, conducting the water to the turbine in the powerhouse. The lowest point of the pipe line on one of these trestles is under a 300ft. head, which is equivalent to 130 pounds pressure per square inch. An incident showing the great reliability of this stave wood water pipe due to its great lightness is of special interest. The trestle at the point above mentioned in this pipe line during a freshet two years ago last spring was washed out. leaving the pipe suspended in midair for a span of 60 feet without injury to the pipe line and without leakage of water. This would undoubtedly have been difficult, if not impossible, were the oipe constructed of cast iron, on account of its great weight, or steel, owing to its liability to strain at the joints.
