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Uploaded on:
13/02/2009 05:50:34
Type:
Digital Asset
File Size:
258.65 KB
Dimensions:
755 x 1000 pixels
2360 views 4 downloads
P number: P000192
Old photograph number: OSLPlate9
Caption: Scottish oil-shale processing 7. Hydraulic presses are used for the removal of further oil from the filter pressed cakes to leave a more pure crude solid hard paraffin.
Description: Scottish oil-shale processing 7. Hydraulic presses are used for the removal of further oil from the filter pressed cakes to leave a more pure crude solid hard paraffin. Filter pressed cakes of paraffin are formed into cloth and frame bound layers 2 in. thick. Each layer is inserted into a shelf in the hydraulic press. A ram from the bottom is applied at 1 ton per inch pressure for 6 hours. Sixteen hydraulic presses were used, each having 25 plates, thus processing 400 cakes every 6 hours, or 1,600 cakes per 24 hours. Each cake weighed 32 lb., so the total crude solid hard paraffin turned out from these presses was about 23 tons daily.
Date taken: 01/01/1927
Photographer: Unknown
Copyright statement: NERC
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
Orientation: Portrait
Size: 258.65 KB; 755 x 1000 pixels; 64 x 85 mm (print at 300 DPI); 200 x 265 mm (screen at 96 DPI);
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