Motive Powers and Their Practical SelectionLongmans, Green, and Company, 1894 - 257 páginas |
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Página 34
... a plant was in successful operation for some time in London until stopped by action taken against the use of the wheel as infringing the law with reference to sky signs . A description of this will be of interest as a 34 MOTIVE POWERS .
... a plant was in successful operation for some time in London until stopped by action taken against the use of the wheel as infringing the law with reference to sky signs . A description of this will be of interest as a 34 MOTIVE POWERS .
Página 35
... taken with the use of the governor and " cut - out " employed , was sufficiently uniform to charge a battery of 28 accumu- lators . From this battery sufficient electricity was obtained for two and sometimes three 1,500 candle - power ...
... taken with the use of the governor and " cut - out " employed , was sufficiently uniform to charge a battery of 28 accumu- lators . From this battery sufficient electricity was obtained for two and sometimes three 1,500 candle - power ...
Página 37
... taken at 1.00 . Floating mills .... .30 Undershot wheels ... .35 Poncelet undershot wheel .. .60 Water - wheels Breast wheel ...... .. -55 High breast - wheel .. .60 Overshot wheel .... .68 Pelton or jet - wheels .. -75 Turbines ...
... taken at 1.00 . Floating mills .... .30 Undershot wheels ... .35 Poncelet undershot wheel .. .60 Water - wheels Breast wheel ...... .. -55 High breast - wheel .. .60 Overshot wheel .... .68 Pelton or jet - wheels .. -75 Turbines ...
Página 48
... taken 2 or 3 feet up the stream ; there drive in a peg until level with the bottom of the notch , then measure the depth of water flowing over the top of the peg . The weir must be made with the up - stream side vertical . The The crest ...
... taken 2 or 3 feet up the stream ; there drive in a peg until level with the bottom of the notch , then measure the depth of water flowing over the top of the peg . The weir must be made with the up - stream side vertical . The The crest ...
Página 49
... taken from the tables , is 4.27 per square inch . Multiplying 1,152 by 4.27 we obtain 4,919 cubic feet per minute , as the actual discharge . This plan may also be used for estimating the winter sup- ply of a mill which can only be ...
... taken from the tables , is 4.27 per square inch . Multiplying 1,152 by 4.27 we obtain 4,919 cubic feet per minute , as the actual discharge . This plan may also be used for estimating the winter sup- ply of a mill which can only be ...
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