File:Doug Alkire 5300 5.jpg
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Doug_Alkire_5300_5.jpg (321 × 262 pixels, file size: 28 KB, MIME type: image/jpeg)
Three safety valves bleed off steam when the pressure in the boiler taps 140 pounds.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:19, 2 February 2013 | 321 × 262 (28 KB) | Dnevil (talk | contribs) | Three safety valves bleed off steam when the pressure in the boiler taps 140 pounds. http://books.google.com/books?id=TNQDAAAAMBAJ&pg=RA1-PA147&lpg=RA1-PA147&dq=Doug+Alkire+IBLS&source=bl&ots=YSDIHeFmhn&sig=NKenBwiFm9LV2GIwIxVNyHTJki0&hl=en&sa=X&ei=IF... |
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