lock plate
21Lock nut — Nut Nut (n[u^]t), n. [OE. nute, note, AS. hnutu; akin to D. noot, G. nuss, OHG. nuz, Icel. hnot, Sw. n[ o]t, Dan. n[ o]d.] [1913 Webster] 1. (Bot.) The fruit of certain trees and shrubs (as of the almond, walnut, hickory, beech, filbert, etc.),… …
22Electromagnetic lock — For a lock utilizing magnetism and a key, see magnetic keyed lock. An electromagnetic lock, magnetic lock, or maglock is a locking device that consists of an electromagnet and an armature plate. By attaching the electromagnet to the door frame… …
23Magnetic lock — A magnetic lock is a simple locking device that consists of an electromagnet and armature plate. By attaching the electromagnet to the door frame and the armature plate to the door, a current passing through the electromagnet attracts the… …
24Hambleden Lock — Infobox Waterlock lock name = Hambleden Lock [ [http://www.visitthames.co.uk/uploads/a users guide to the River thames.pdf Statistics from Environment Agency A User s Guide to the River Thames:Part II ] ] caption= An old tug boat leaves the lock… …
25Child safety lock — A child safety lock is a special purpose lock for cabinets, drawers, bottles, etc. that is designed to help prevent children from getting at any dangerous contents. Young children are naturally curious about their surroundings and will always… …
26Gimbal lock — Blocage de cardan Animation : un ensemble de trois cardans montés de façon à accorder trois degrés de liberté Le blocage de cardan est la perte d un degré de liberté, plus connue sous le nom anglais de gimbal lock, qui survient quand les… …
27Mortise lock — The two main parts of a mortise lock. Left: the lock body, installed in the thickness of a door. This one has two bolts: a sprung latch at the top, and a locking bolt at the bottom. Right: the box keep, installed in the door jamb. A mortise lock… …
28Miquelet Lock — A: Cock or hammer. B: Combination frizzen (steel) and powder pan cover. C: Bridle covering frizzen spring. D: Mainspring. E: Bridle supporting the cock. F: Heel of the cock. G: Poinçon or puzón. H: Full cock or primary sear. I: Half cock or… …
29Dial plate — Dial Di al, n. [LL. dialis daily, fr. L. dies day. See {Deity}.] 1. An instrument, formerly much used for showing the time of day from the shadow of a style or gnomon on a graduated arc or surface; esp., a sundial; but there are lunar and astral… …
30Vehicle registration plate — A vehicle registration plate is a metal or plastic plate attached to a motor vehicle or trailer for official identification purposes. The registration identifier is a numeric or alphanumeric code that uniquely identifies the vehicle within the… …
