Where did the term lock come from?

“means of fastening,” Old English loc “bolt, appliance for fastening a door, lid, etc.; barrier, enclosure; bargain, agreement, settlement, conclusion,” from Proto-Germanic *lukana-, a verbal root meaning “to close” (source also of Old Frisian lok “enclosure, prison, concealed place,” Old Norse lok “fastening, lock,” …

Who created the word friction?

1560s, “a chafing, rubbing,” from French friction (16c.) and directly from Latin frictionem (nominative frictio) “a rubbing, rubbing down,” noun of action from past-participle stem of fricare “to rub, rub down,” which is of uncertain origin.

Is stiction a real word?

Stiction has been a part of the English language since at least 1946, when it appeared in a journal of aeronautics. The word is a combination of the st- of static (“of or relating to bodies at rest”) and the -iction of friction (“the force that resists relative motion between two bodies in contact”).

What is the meaning of wheel lock?

: a gun’s lock for a muzzle-loading firearm in which sparks are struck from a flint or a piece of pyrite by a revolving wheel.

What does lock mean slang?

Slang. someone or something certain of success; sure thing: He’s a lock to win the championship.

Is it lock or locked?

Senior Member. The use of lock instead of (a longer construction using) locked adds pace and intimacy to the dialogue.

What is friction one word?

1 : the rubbing of one thing against another. 2 : resistance to motion between bodies in contact Oiling the parts of the machine reduces friction. 3 : disagreement among persons or groups.

What is the difference between friction and stiction?

Static friction acts on bodies at rest and prevents motion until the applied force overcomes the force due to static friction. In other words, stiction is the total static friction that must be overcome in order to cause motion in a body at rest. Stiction often results in a system overshooting its commanded position.

What is injector stiction?

Stiction is the sticky, gummy residue of burnt oil on moving engine parts that causes dragging friction. Stiction can occur on your diesel’s HEUI injectors, o-rings, springs, piston and the turbocharger. The most obvious symptom of stiction is a diagnosis of a failed injector.

What is a steering wheel lock called?

Also known as a crook lock, or club lock, the first generation of steering-wheel locks, known as canes, consisted of a lockable bar that connected the steering wheel to the brake pedal or clutch pedal. …

What does a lock emoji mean?

The image of a closed lock next to a key is the emoji symbol for secrecy or something held secure. It can refer to the act of keeping something or someone safe and secure. Locked with Key Emoji can also mean “held under lock and key”. The Locked with Key Emoji appeared in 2010, and also known as the Taken Emoji.

What is the function of a frictional locking device?

Frictional locking devices are devices that perform the above functions using the coefficient of friction between the two contacting surfaces.

Where does the word friction come from in English?

History and Etymology for friction. earlier, therapeutic rubbing of the limbs, from Middle French, from Latin friction-, frictio, from fricare to rub; akin to Latin friare to crumble, and perhaps to Sanskrit bhrīṇanti they injure.

Why do lock nuts have friction in them?

Friction lock nuts Lock nuts that use friction to resist loosening typically require greater torque to tighten or loosen, particularly during the initial free rotation — before they start to clamp down on the part. This will mean that they cannot be spun rapidly along a long length of thread, greatly increasing manual assembly time.

What is the origin of the word lock?

History and Etymology for lock Noun (1) Middle English lok, from Old English locc; akin to Old High German loc lock, Greek lygos withe, Latin luxus dislocated Noun (2)