John and Emma Propert emigrated from England in 1877 and settled in New South Wales . Several of their 11 children became talented inventors, designing items ranging from kitchen utensils to coaches and later pop-up caravans. One of the most successful was Charles, who designed and built kitchenware over many decades. His earliest invention was irrigation equipment including patenting the common backyard rose sprinkler. Propert became a household name when he began making a wide range of kitchen implements decades including flour sifters and chip cutters. By the 1970s Propert was Australia’s leading brand of kitchen and bathroom scales. By far the most successful product was a ball-driven egg beater, trademarked as the Ezy Whisk or Swift Whisk. In the days before electric beaters, the Ezy Whisk and Swift Whisk were market-leaders and were exported world-wide. Charles Propert and his son Bertram manufactured more than a quarter of a million egg beaters a year in the early 1950s which explains why so many are still in use today.These items are significant because they were widely used throughout Australia in the 1950s by a major Australian manufacturer.Two Propert's kitchen appliances - a stainless steel Whistling Egg Timer and a Swift Whisk BeaterOn Egg Beater : A PROPERT PRODUCT MADE IN AUSTRALIA PATENT BALL DRIVE SWIFT WHIP STAINLESS STEELkitchen utensils, propert kitchen appliances