Door Handles. Saturday , September 15th , 2018 - 22:39:44 PM
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.
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.
While different types of door handles are designed with unique components, the average handle has basic components. For instance, in addition to the knob top, which is the large knob that you would actually grab hold of to turn, handles are made with a spindle, shank, and knob rose. The knob rose is a round washer or plate used to form a socket. This piece is adapted so it can be attached to the actual door. Then, there is that spindle, which is the thin piece to which the handle attaches. The shank is the stem that projects from the door handle. Within the shank is a hole in which the spindle would be placed. For functionality, the door handle would be attached so the metal shaft can turn the latch to open the door.
Label :Patio Door Hardware‚ Pocket Door Handles‚ Lever Door Knobs along with Nice Door Knobs‚ Reproduction Door Hardware‚ Pull Handle as well as Kitchen Pull Handles‚ Old Door Hardware‚
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