Hi, the last firm I worked for before I retired had a big old multi spindle lathe, and attached to it was a skimmer.
The design had a disc made from Perspex or any other plastic sheet, and this rotated slowly in a trough of coolant.
The oil on the top of the coolant stuck to the perspex and as it went round a couple of wipers at the top scraped the oil off and led it to a trough to the side.
The disc rotated slowly, about 3 or four rev per minute, all day long, driven through a small windscreen wiper type motor and worm drive gearbox.
The hardest part is to make the disc rotate slowly enough, needs a small worm drive gear box.
Ian. |