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Boxlock actions have the advantage that they are more compact than side mounted lock mechanisms, which made them a popular choice for pocket pistols. The compact design also made them well suited for pistols with multiple barrels and pepperbox pistols. The lockwork is also enclosed within the box, which protects the lockwork from dirt and damage.
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 ...
Simson-Supra eight-cylinder, 4.7-litre Model A in the Suhl vehicle museum. In 1925 Simson introduced its first six-cylinder car, the model J. Its SOHC, 3.1 litre engine produced 60 bhp, giving it a 95 km/h (59 mph) top speed. In 1926 this was succeeded by the model R, which produced similar performance with an OHV pushrod engine. [7]
Lockitron is a device which can lock and unlock doors via remote control, typically via a smartphone. Starting with installations in 2010, it is one of the earliest examples of a smart lock. Lockitron was made by Apigy Inc., a start-up based in Mountain View, California. Apigy was a graduate of the Y Combinator start-up accelerator. [1]
Electric locks use magnets, solenoids, or motors to actuate the lock by either supplying or removing power. Operating the lock can be as simple as using a switch, for example an apartment intercom door release, or as complex as a biometric based access control system. There are two basic types of locks: "preventing mechanism" or operation ...
Harry Soref founded the Master Lock Company in 1921 and patented an improved padlock in 1924 with a patent lock casing constructed out of laminated steel. Linus Yale Sr. invented a pin tumbler lock in 1848. Linus Yale Jr. improved upon his father's lock in 1861, using a smaller, flat key with serrated edges that is the basis of modern pin ...
Pressing a button on the key unlocks all of the car doors. Another button locks the car. In 1980, Ford Motor Company introduced an external keypad-type keyless entry system, wherein the driver entered a numeric combination —either pre-programmed at the factory or one programmed by the owner— to unlock the car without the key.
The Heckler & Koch MK 23, MK 23 MOD 0, Mark 23, or USSOCOM MARK 23 is a semi-automatic large-frame pistol chambered in .45 ACP, designed specifically to be an offensive pistol.