Baylee Serrano. Door Handles. September 29th , 2018.
When you consider that some 120 million doorways exist in the United States alone and another two million are installed each year, you can only imagine the vast number of door knobs. Going back in history, doors were initially made from textiles and animal hides. However, during the ancient Mesopotamia and Egyptian era, wooden doors were developed. Soon, materials for making doors expanded to include stone, glass, metal, and even paper. Doors throughout history have also changed regarding functionality. For instance, we still find doors of all types, those that roll, slide, swing, and fold. Of course, for doors to function, hardware is required to include door handles. Just as with doors, handles have a long history although these were first manufactured during the mid-19th century in America. The first handle was shaped like an egg and today, they are still found in many homes, especially older homes. Interestingly, because of the way this type of door handle is grasped, it has proved to be the easiest to open.
The handle, as it exists today, is a relatively new invention dating to the mid-19th century, with the first American patent dated in the 1850s. Handles and knobs experienced a massive period of growth and development throughout the Victorian Era (1830-1900). Thousands of variations on the theme of the door handle, in combination with modern production methods, made door handles accessible to virtually everyone. Latches faded in popularity and use, relegated to service in barns and similar outbuildings where their simplicity and design function trumps external appearance. These handles today serve multiple functions. Among these functions, may include lock and key mechanisms, electronic locks, push button access that is either mechanical or electronic, high-security features and many other applications other than a simple push-pull device to open or close a door.
Door handles are made from a few different materials including acrylic, aluminium, wrought iron, brass, chrome, stainless steel, porcelain (wooden), and glass. Each different material creates a different look and style. The cleaning of handles all depends on the type of door handle you have, for each different material requires a different cleaning method. For example with chrome handles should never use metal polishes or aerosol spray polishes as this damages the chrome, you can simply dust the door handle with a duster or with warm soapy water. Always check the correct method of cleaning for your type of door handle. Privacy set handles are used when more privacy is needed such as in bathrooms and on bedroom doors. On the inside of the door handle there is a turn lock and on the outside of the handle there is an emergency exit unlock feature in case of accidents.
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