Document, "Self Lapping Brake Valve Details", c2010

Historical information

Photocopy of a handwritten document on the operation of a Westinghouse Self Lapping brake valve Type W. This valve was the type fitted to virtually all Melbourne tramcars. Includes drawings.

Significance

Yields information about the operation of type W brake valves fitted to W class trams.

Physical description

Eleven A4 pages - hand written and photocopied - stapled in top left hand corner.

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