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Q what lubricants were available in 1930s
MavisStrachey
DaleMalan Release Time: February 23, 2024, 5:52 PM
In the 1930s, the most common lubricants were mineral oils, with several variants available depending on the specific application. 1. Paraffinic Oils: These were used for their excellent lubricating properties, particularly in internal combustion engines. 2. Naphthenic Oils: These oils have excellent solubility and stability, making them suitable for use in various industrial applications. 3. Heavy Crude Oil: This was often used as a lubricant in heavy machinery and industrial applications. 4. Whale Oil: Used for various applications including machinery and tools. However, its usage decreased as the 20th century progressed due to concerns about whaling. 5. Animal Fats: Like lard and tallow, they were used for some applications. 6. Vegetable Oils: Oils derived from plants, like castor oil, were used for certain applications like bicycle chains. 7. Greases: These were typically made from a mixture of a thickener (such as soap) and a liquid lubricant (like oil). 8. Graphite and Molybdenu...
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