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The most common type of door handle is the Lever latch or Latch door handle on a backplate found in residential houses and commercial and public buildings. Doors fitted with this handle have a latch that keeps the door shut. The door handle has only a lever handle or knob which operates this latch. Pushing the handle down rotates the spindle ...
Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]
A slam latch uses a spring and is activated by the shutting or slamming of a door. Like all latches, a slam latch is a mechanism to hold a door closed. The slam latch derives its name from its ability to slam doors and drawers shut without damaging the latch. A slam latch is rugged and ideal for industrial, agricultural and construction ...
A metal doorframe with a strike plate built in: in other doors this would be a metal strikeplate in a wooden doorframe. The term door security or door security gate may refer to any of a range of measures used to strengthen doors against door breaching, ram-raiding and lock picking, and prevent crimes such as burglary and home invasions. Door ...
Here is a non-exhaustive list of historical projects undertaken by the Yale Lock Company, where they equipped buildings with their locks and hardware: [21] [22] Metropolitan Life Insurance Company Tower, the headquarters of the Metropolitan Life Company (1909) Woolworth Building, the headquarters of the Woolworth Company (1912)
It was a notable design because the levers were sub-assembled into a "cartridge" that could be slid into a cast brass body shell. The assembly would remain together by means of two taper pins passed through the shell and cartridge. This design gave the commercial padlock market a serviceable, rekeyable padlock.
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