door articles
How did the earliest known wooden locks from ancient Egypt primarily operate?
What primary shift does the evolution from ancient Egyptian locks to later mechanisms highlight regarding security?
Around what time period did archaeological evidence suggest the use of early metal locks appeared in Roman ruins?
Where was one of the first truly complex iron locks discovered by historians?
What mechanism, popular before the cylinder lock, required metal levers to be lifted to a specific height by the key?
What significant mechanical lock was patented by Linus Yale Jr. in 1861?
In the Yale cylinder design, what is the precise alignment of the pin stacks called once the correct key is inserted?
What specific contribution is attributed to Linus Yale Sr., the father of Linus Yale Jr.?
What characteristic defines a mortise lock compared to surface-mounted rim locks?
What major benefit did electronic access control systems offer over purely mechanical locks?
What new vectors for compromise are introduced by the newest smart locks?
What approach do progressive door locks often take as a modern security solution?
Who is credited with patenting the design that became the foundation for the modern doorknob?
In what year did Osbourn Dorsey secure the patent for his door-holding device?
What was Osbourn Dorsey's initial profession before conceiving his patented design?
How old was Osbourn Dorsey when he patented the design for the modern doorknob?
What material did Dorsey primarily use for manufacturing his robust, patented doorknobs and doorstops?
What rudimentary door-securing method preceded widespread adoption of the modern knob?
What innovation distinguishes Dorsey’s patented device from earlier cast-metal knobs introduced around 1846?
Which of the following items was NOT listed as one of Osbourn Dorsey's other industrial or household inventions?
What significant legal detail identifies Dorsey's patent for the door-holding device?