The moulds were semi dried in the sun for a few hour, then the moulded shoe could be removed from the mould to be pressed. Note the upturned car jack to do this job.
This image of Des Bettany’s artwork has been reproduced with permission from the book ‘Don’t Ever Again Say “It Can’t Be Done”’ published by The Changi Museum, Singapore.
‘A big double press for pressing the rubber in moulds and slabs was manufactured out of two car jacks and some heavy timber.’
Source: Robert Moffett, ‘Rubber Factory Report’, in Lachlan Grant (ed.), The Changi Book, Published by New South in association with the Australian War Memorial, 2015, pg., 203