Door Handles. Tuesday , November 28th , 2017 - 03:49:00 AM
As door handles easily catch germs and bacteria because of the variety of individual hands that touch them in the course of a day, it is important to consider the materials used. It is believed that certain materials like brass, copper and silver discourage the growth of bacteria and germs through some kind of electro-chemical effect; while other materials like aluminum, stainless steel, glass and porcelain do not have the same action. However, this belief has remained just that... a belief: and studies have not been extensive enough to confirm or disprove this possible effect, except in the case of silver. Hospitals in particular are experimenting with handle materials as they continue their fight against infectious disease within their wards.
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. Depictions of door handles in paintings dating to the first century CE are centrally placed hinged rings. The modern door knocker is a vestige of this style of primitive door handle. Doors were typically secured by bars and brackets to prevent them from being opened by either intent or accident.
Used by every member of the family, door handles are an important part in planning the interior of the house. Choosing the right type gives a complete look to a new or a refinished door. This is the part of the interior design that most people usually ignore. Those with good aesthetic sense, however, are very choosy about the look and feel of the door with respect to the handles attached. It does ruin the affect of the décor style, if it is not matched in accordance with the door look. It can add elegance to a room since, the door is the first thing people encounter when they enter a room. So they are important accessories in terms of interior decoration.
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