Luggage locks

A deadbolt is a special kind of locking mechanism, providing more security than an ordinary key-operated lock because the weight of the locking bar is usually sufficient to increase break-in time to 10 or 15 minutes.

Unlike most spring-bolt locks, in which the bolt is held in place only by the pressure of a spring and can easily be retracted, a deadbolt lock cannot be opened except by rotating the lock cylinder.

A variant of the standard deadbolt is the vertical deadbolt, which generally rests on top of a door. Vertical deadbolts resist jimmying (in which an intruder inserts a pry bar between the door and the frame and tries to pry the bolt out of the jamb).

Security Features

Many designs are available from manufacturers. Various manufacturers have patented designs offering unique solutions to prevent the locks from being defeated by picking, lock bumping prying, and other forceful attacks.

Shiplake Lock is a lock and weir situated on the River Thames in the village of Shiplake in the county of Oxfordshire, England. It is owned and managed by the Environment Agency. It is just above the point where the River Loddon joins the Thames.

Reach above the lock

The river skirts Shiplake on the Oxfordshire bank and eventually passes into Sonning. On the way are four islands Phillimore Island, The Lynch, Hallmead Ait and Buck Ait. The Thames Path stays on the Oxfordshire bank to Sonning, where it crosses the bridge to the other side below Sonning Lock.

Miraflores is the name of one of the three locks that form part of the Panama Canal and the name of the small lake that separates these locks from the Pedro Miguel locks upstream. In the Miraflores locks, vessels are lifted (or lowered) in three stages totalling 8 m, allowing them to transit to or from the Pacific Ocean port of Balboa (near Panama City). Ships cross below the Puente de las Américas (Bridge of the Americas) which connects North and South America.

As of 2005, the following schedule was in effect for ship transit through the locks. From 06:00 to 15:15, ships travel from the Pacific towards the Atlantic. From 15:45 to 23:00 ships travel from the Atlantic towards the Pacific. At any other time, travel is permitted in both directions,

A modern visitor center allows tourists to have a full view of the Miraflores locks operation. Binoculars are recommended to also see the Pedro Miguel locks, visible in the distance. As of 2005, admittance to the visitors center costs US$5 (observation terrace) or $8 (supporting exhibits and show added). Viewing a transit operation at the center can take more than 30 minutes. A souvernirs shop in the base level sells related merchandise. The center closes at 17:00.

Saint Georges, Delaware is an unincorporated town situated on the Chesapeake and Delaware Canal in New Castle County, Delaware, about midway between the Delaware River and Chesapeake Bay.

The Chesapeake & Delaware Canal Bridge (Delaware Route 1) passes just west of town. It is the only cable-stayed bridge in the Delaware Valley and one of the first in the nation. It opened in 1995 as a replacement to the still standing St. Georges Bridge, which carries U.S. Highway 13 over the town of Saint Georges and the Canal. The St. Georges Bridge is in turn a replacement for a former lift bridge that sat in the middle of town. That bridge was knocked down in November 1939 when the German freighter Waukegan lost power and hit the south tower of the bridge causing it to collapse. Two people died that evening, the bridge tender and a sailor that was on the bridge of the ship at the time of the accident. One other bridge spanned the C & D Canal before the lift bridge. It was a small pedestrian swing bridge that crossed over the former Saint Georges Locks. It was destroyed when the locks were dismantled during the first widening and deepening (to sea level) of the canal.

Its ZIP Code is 19733.

In computer science, multiple granularity locking (MGL), sometimes called the John Rayner locking method, is a locking method used in database management systems (DBMS) and relational databases.

In MGL, locks are set on objects that contain other objects. MGL exploits the hierarchical nature of the contains relationship. For example, a database may have files, which contain pages, which further contain records. This can be thought of as a tree of objects, where each node contains its children. A lock locks a node and its descendants.

Multiple granularity locking is usually used with Non-strict two-phase locking to guarantee serializability. MGL uses lock escalation to determine granularity lock on a node and its ancestors.

Lock Modes

In addition to shared (S) locks and exclusive (X) locks from other locking schemes, like Strict two-phase locking, MGL also uses intention shared and intention exclusive locks. IS locks conflict with X locks, while IX locks conflict with S and X locks. The null lock (NL) is compatible with everything.

To lock a node in S (or X), MGL has the transaction locks all of its ancestors with IS (or IX), so if a transaction locks a node in S (or X), no other transaction can access its ancestors in X (or S and X).

MGL locking modes are compatible with each other as defined in the following matrix.

Coffin Lock is a slang term for a blind panel connector (also called a Butt-Joint Fastener) often used in performing arts to join together stage decks or scenery in a butt joint or cabinet and lid locks on road cases. These are typically two part connectors (male and female) that draw together and lock. The two most common types are the cam and acceptor (sold under the trade name “Roto-Lock”) and more traditional hook and pin version. These devices generally use an Allen key to operate the locking mechanism via a small diameter hole either through the face or rear of the panel. When locked, the considerable mechanical advantage offered by the cam or hook holds the panels tightly together. Coffin locks can be installed directly into a mortise cut into each panel, for total concealment except for the locking hole, or mounted to the rear of the panels.

Neptune’s Staircase is a staircase lock comprising eight locks on the Caledonian Canal. It is the longest staircase lock in the United Kingdom, and lifts boats 64 feet (19.5 metres). The locks were originally hand-powered, but have been converted to hydraulic operation.
The base plinths of the original capstans are still present, although the capstans themselves are now gone.

The current lock gates weigh 22 tons each, and require a team of three lock-keepers (at minimum) to run the staircase.

It is usual for them to operate on an “Efficiency Basis”, that is the keepers try to either fill each cut with boats on the lift or drop, or to allow for passing, ie a dropping craft to pass a rising craft on the same fill/empty cycle.

It is one of the biggest staircases in Britain, and is kept by British Waterways.

It is located at Banavie, near Fort William just north of Loch Linnhe.

The structure was designed by Thomas Telford.

A party bus (also known as a Party Ride, limo bus, limousine bus or luxury bus) is a large motor vehicle designed to carry 20 or more passengers. Party buses are often driven by chauffeurs.

Party buses offer seating capacities from 20 to 50 passengers and include more amenities and standard equipment than most other forms of ground transportation. These amenities may include upgraded electrical systems, fast idle controller, AM/FM stereo with CD player, power/heated remote control mirrors, power door locks and windows, upgraded seats and fabric, strip-poles, air actuated passenger entry door, video and audio systems, luggage partitions, back-up cameras, seat and fabric upgrades, smoke machines, laser lights, disco lights, strobe lights, on-board restroom, ADA equipment and a large array of floor plans to suit demanding transportation needs.

Party buses are primarily used for, although not limited to, weddings, proms and bachelor and bachelorette parties as well as round trips to casinos, nights on the town, personalized drop offs and pick ups at various bars and nightclubs, birthdays and city tours.

While some party buses are used for week long tours and events, most are used for day trips and events. Most party buses, however, operate as livery vehicles, providing upmarket competition to limousines and taxicabs.

A bahut is a portable coffer or chest, with a rounded lid covered in leather, garnished with nails, once used for the transport of clothes or other personal luggage, it was, in short, the original portmanteau. This ancient receptacle, of which mention is made as early as the 14th century — its traditional form is still preserved in many varieties of the travelling trunk — sometimes had its leather covering richly ornamented, and occasionally its interior was divided into compartments; but whatever the details of its construction it was always readily portable. Towards the end of the 17th century the name fell into disuse, and was replaced by coffer, which probably accounts for its misuse by the French romantic writers of the early 19th century. They applied it to almost any antique sideboard, cupboard or wardrobe, and its use became hopelessly confused.

Coffin Lock is a slang term for a blind panel connector (also called a Butt-Joint Fastener) often used in performing arts to join together stage decks or scenery in a butt joint or cabinet and lid locks on road cases. These are typically two part connectors (male and female) that draw together and lock. The two most common types are the cam and acceptor (sold under the trade name “Roto-Lock”) and more traditional hook and pin version. These devices generally use an Allen key to operate the locking mechanism via a small diameter hole either through the face or rear of the panel. When locked, the considerable mechanical advantage offered by the cam or hook holds the panels tightly together. Coffin locks can be installed directly into a mortise cut into each panel, for total concealment except for the locking hole, or mounted to the rear of the panels.