Jalousie window interior of the house from jealous peering eyes. A patent for a basic louvered window was applied for in the US by a Joseph W. Walker, of Malden, Massachusetts, in 1900 and issued November 26, 1901, as patent no. 687705. A popular hand-cranked glass, aluminum, and screen window combination was later designed by American engineer Van Ellis Huff and found widespread use in temperate climates before the advent of air-conditioning. Jalousie windows were a popular feature in Mid-century modern houses, especially those built in warm and humid climates. Jalousie windows maximize natural ventilation by allowing airflow through the entire window
Types of plant oils Types of plant oils Plant oils or vegetable oils are oils derived from plant sources, as opposed to animal fats or petroleum. There are three primary types of plant oil, differing both the means of extracting the relevant parts of the plant, and in the nature of the resulting oil: Vegetable fats and oils are what are most commonly called vegetable oils. These are triglyceride-based, and include cooking oils like canola oil, solid oils like cocoa butter, oils used in paint like linseed oil and oils used for industrial purposes. Pressed vegetable oils are extracted from the plant containing the