Door Handles. Sunday , September 16th , 2018 - 03:39:27 AM
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. Over time, large crossbars used to secure a door were supplanted by sliding bars, operated by a handle secured to the bar and projecting through a slot in the door, or as a pivoting bar - often called a latch - that could be dropped into a matching slot on the door jamb. In Colonial America, the operating mechanism for a small pivoting bar was a latch string threaded through a hole in the door near the handle. There are - probably apocryphal - accounts and references implying that this mechanism was a workaround for heavy taxes and a crown edict mandating the colonists could only use door latches or locks imported from England. About the middle of the 18th century, handles and locks were integrated into a single unit, the earliest known examples being levers that both operated the latch and served as a pull to open the door.
Door handles are really one of the most common attachments for every interior as well as the exterior doors. They are really very much effective and efficient. These attachments are mainly mounted on the outer surface of most of the doors. Today, various manufacturers are constantly producing the best handles which are well enhanced with various styles and designs. These handles can very easily make your ordinary doors out of the ordinary. You can simply buy these exotic and eye catching attachments from the market and make your doors special.
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.
Label :French Door Handles With Locks‚ Flush Door Handles‚ External Door Lock also Exterior Door Lever‚ Doors And Handles‚ Exterior Door Hardware also Exterior Door Knobs‚
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