Ads
related to: autronic single lever paddle key chain size guide
Search results
Results From The WOW.Com Content Network
A keyer is an electronic device used for signaling by hand, by way of pressing one or more switches. [1] The technical term keyer has two very similar meanings, which are nonetheless distinct: One for telegraphy and the other for accessory devices built for computer-human communication:
The Vibroplex Original Bug key has been in continuous production for over 100 years, with only minor cosmetic changes. Numerous Vibroplex keys are available to this day; the company presently markets and sells 27 variations of Morse code keys, including the Original Bug, iambic paddles, the Vibrokeyer (an electronic variant of the Original Bug ...
15th century paddle-wheel boat whose paddles are turned by single-throw crankshafts (Anonymous of the Hussite Wars) The crank became common in Europe by the early 15th century, often seen in the works of those such as the German military engineer Konrad Kyeser . [ 41 ]
A key fob is a generally decorative and at times useful item many people often carry with their keys, on a ring or a chain, for ease of tactile identification, to provide a better grip, or to make a personal statement.
A Wordlock letter combination lock.. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set of several rotating discs with inscribed symbols which directly interact with the locking mechanism, or through an ...
The key of this type of electronic padlock is no longer a key in the traditional sense, but is unlocked through mobile phone Bluetooth, near-field communication (NFC), and fingerprint. Unlike active electronic padlocks, passive electronic padlocks do not require electricity which makes their use environment more extensive.
Alternatively, the key may be attached to the train staff for the section of running line containing the entrance to the siding. [ 5 ] [ 6 ] At manually-worked level crossings remote from signal boxes, the key to the gates can only be removed for use when the signals for the running line are locked at danger .
Animation of a lever tumbler lock mechanism. A lever tumbler lock is a type of lock that uses a set of levers to prevent the bolt from moving in the lock. [1] In the simplest form of these, lifting the tumbler above a certain height will allow the bolt to slide past.