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In 1848, Linus Yale Sr. invented the modern pin-tumbler lock. [4] In 1861, Linus Yale Jr., inspired by the original 1840s pin-tumbler lock designed by his father, invented and patented a smaller flat key with serrated edges, as well as pins of varying lengths within the lock itself, the same design of the pin-tumbler lock in use today. [5]
Yale & Towne Manufacturing Co, 1897. In 1868, the business was established in Stamford, Connecticut, by Henry R. Towne and Linus Yale Sr., an inventor renowned for creating the pin tumbler lock. Initially known as Yale Lock Manufacturing Co., the company later adopted the name Yale & Towne, with its base in Newport, New York. [3]
Linus Yale Jr. was born in Salisbury, New York. His ancestors were of the same family as Elihu Yale, the benefactor to and namesake of the well known Yale University.The Yale family of America were all descended from the same ancestor, Thomas Yale, Elihu's only uncle with the Yale name.
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Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.
A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [ 1 ] It is distinct from a spring bolt lock because a deadbolt can only be opened by a key or handle.
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]
The Yale–Brown Obsessive–Compulsive Scale (Y-BOCS) is a test to rate the severity of obsessive–compulsive disorder (OCD) symptoms.. The scale, which was designed by Wayne K. Goodman and his colleagues in 1989, is used extensively in research and clinical practice to both determine severity of OCD and to monitor improvement during treatment. [1]