Ads
related to: wrought iron door lock replacementamazon.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
Yale's other significant invention is the Chilled Iron Bank Doors and Vaults. Previous bank doors, vaults, and safes had plates of hard cast behind soft wrought iron, which can be easily broken using the right amount of leverage and skillful vault-picking. The hard casts are often rigid and fragile, and susceptible to heavy tinkering.
Wrought iron is a form of commercial iron containing less than 0.10% of carbon, less than 0.25% of impurities total of sulfur, phosphorus, silicon and manganese, and less than 2% slag by weight. [18] [19] Wrought iron is redshort or hot short if it contains sulfur in excess quantity. It has sufficient tenacity when cold, but cracks when bent or ...
Around the middle of the 19th century, "Scandinavian" style locks, or "Polhem locks", invented by the eponymous Swedish inventor Christopher Polhem, became a more secure alternative to the prevailing smokehouse and screw locks. These locks had a cast iron body that was loaded with a stack of rotating disks. Each disk had a central cutout to ...
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
The parts included in the typical US mortise lock installation are the lock body (the part installed inside the mortise cut-out in the door); the lock trim (which may be selected from any number of designs of doorknobs, levers, handle sets and pulls); a strike plate (or box keep), which lines and reinforces the cavity in the door jamb or frame ...
Lock block – A solid block of wood mounted within a hollow-core flush door near the bolt to provide a solid and stable location for mounting the door's hardware. Stave-core – Consists of wooden slats stacked upon one another in a manner similar to a board & batten door (though the slats are usually thinner) or the wooden-block hollow-core ...