Door Handles. Monday , October 01st , 2018 - 18:51:06 PM
Door handle is an ambiguous term, and includes door latches, bars, and knobs. Depending on the geographical location and its place in time, they vary in design, form and materials. The only constant is its function: an attachment used to open or close a door. The earliest doors extant are approximately 5000 years old. Door handles, as devices to manipulate a gateway, became a necessity shortly after the invention of the pivoting mechanism. To most, pivots are simply known as hinges, however, there are nearly as many hinge designs and configurations as there are handles. The simplest handle is a pull - or push - projection on the side opposite the hinge. The placement of the handle is generally where it will provide an optimal mechanical advantage; most doors operating as second class levers. Doors with centre pulls or rings, or a pivot point in a location other than one edge of the door, use first or third class lever principles.
The other important aspect to consider when buying door handles is the aesthetic beauty. There are artistic knobs that may take diverse shapes such as a hand, bottle or a key. Some handles are placed at the center of the door for aesthetics. You can also get a see through knobs or a old fashioned ones. The door knobs also come in diverse colors to match with the door furniture and the rest of the house.
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