Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (6 total)

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Professor David R.  Boylan  working with shaft furnace
A full view of the unit including the raw superphosphate disintegrator, conveyor belt, Link-Belt Roto Louvre Dryer and accessory equipment.
Link-Belt Roto Louvre Dryer
Professor David R.  Boylan  working with shaft furnace
A full view of the unit including the raw superphosphate disintegrator, conveyor belt, Link-Belt Roto Louvre Dryer and accessory equipment.
Link-Belt Roto Louvre Dryer
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