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The New Zealand Railways Magazine, Volume 3, Issue 2 (June 1, 1928)

Reclaiming of Oil

Reclaiming of Oil.

With the introduction of motors, starters and electrical appliances in the modern workshop, oil plays a great part. It is used for cooling transformers and protecting the moving parts of switch gear, etc., that are subject to electrical flashes.

Illustration No. 2 A modern “Single Head” Shaping Machine recently installed at Hillside Workshops.

Illustration No. 2
A modern “Single Head” Shaping Machine recently installed at Hillside Workshops.

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Oil so used, after having been in service for some time, gradually gathers moisture and deposits of brass, copper, carbon and other solid matter, with the result that it becomes altogether unsuitable, and in many cases its retention occasions harm to the working parts.

It was the practice hitherto to discard this oil and obtain a supply of fresh oil to replace it. To conform, however, with modern methods at Hillside workshops, an oil purifier (illustration No. 3) has been installed to reclaim this would-be waste.

In the oil purifier the oil is subjected to a centrifugal process, whereby all moisture and foreign matter is extracted. It was found, by actual test, that oil, after being in service for three years, withstood a flash-test of 50,000 volts when purified by this process.

The purifier is manufactured by the Empson Centrifugals, Ltd., London.

Illustration No. 3 An Oil purifier installed at Hillside, to reclaim waste oil.

Illustration No. 3
An Oil purifier installed at Hillside, to reclaim waste oil.

Illustration No. 4 The Power Hack Saw

Illustration No. 4
The Power Hack Saw