Typed report on the use of precision casting methods at Preston Workshops foundry to reduce the amount of machining post-casting. Looks at the methods of precision casting, the type of equipment needed for this, and those companies in Melbourne using shell moulding, Includes an extensive list of items and the number of units used each year that this method could be used for. Report by J Scholtz dated 12-7-1963.Yields information about the examination of costs and methods of using shell moulding processes at Preston Workshops.Document or report 7 foolscap sheets - carbon copytramways, technical information, preston workshops, costs, foundry, castings, plate shop

Typed report on the possibility of converting solid steel wheels to wheel centres after they were worn out and then placing a tire or tyre onto them. Looks at the costs, and mileages. Understood this was not proceeded with. Report dated 24/7/1964.Yields information about the examination of costs and methods of recycling solid wheels as wheel centres.Document or report 1 foolscap sheet - carbon copytramways, technical information, preston workshops, costs, wheels, tyres

Report titled "Ropes - Trolley", dated October 1954 though has a date stamp on the first page of the report itself of 26/10/1955, prepared by the MMTB Testing Department, Report No. R7/1/43. Looks at the insulation resistance offered by trolley ropes when dry and wet, new and used ropes and the possibility of causing electric shocks. Gives a reference to a previous August 1952 test. Undertook examination of the ropes, electrical measurements and electrical measurements of the human body. Has a number of appendices and details the test results.Demonstrates a MMTB Laboratory investigation into trolley rope and electrical characteristics.Report - typed carbon copy - 18 foolscap sheets stapled within a brown card folder bound with red adhesive tape. trams, tramways, preston workshops, reports, specification, tramcars, trolley poles, equipment