Photo 1: Scheme of Aitkin's precipitator (5x5,5 cm; unknown) Photo 2: Device for determining the speed of fall of sand grains (drawing No. 118) (8,5x6 cm; unknown) Photo 3: Graph of air velocity measured in vertical plane about 2 meters before suction hole at fully open wall and at wall sealed with mesh (7,5x5 cm; unknown) Date: 1946 Keywords: devices, graphs, illustrations, precipitators, diagrams

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Size: 2221px × 3151px
Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: