| 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: | Sat Jan 01 00:00:00 GMT 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); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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