Locate the ignition tumbler, the spot where you normally put your key. Remove the covers and panels around the tumbler(more?)
A disc tumbler lock or Abloy Disklock is a lock composed of slotted rotating detainer discs. Considered very secure and almost impossible to pick, the lock was invented by a Finnish mechanic Emil Henriksson in 1907 and manufactured by Abloy. Nearly all the houses in Finland use Abloy keys, although they are also widely used in various locales worldwide.
Disc tumbler locks are composed of slotted rotating detainer discs. A specially cut key rotates these discs like the tumblers of a safe to align the slots, allowing the sidebar to drop into the slots, thus opening the lock. Unlike a wafer tumbler lock or a pin tumbler lock, this mechanism does not use springs. Because they do not contain springs, they are better suited for areas with harsh conditions and are often used at outdoor locations like railroad and public utility installations.
The classical Abloy design consists of a notched hemicylindrical key, and a lock with detainer discs with holes ranging from a hemicircle (180°) to a 3/4 circle (270°). The key is inserted and rotated 90 degrees. Notches, machined to an angle, correspond to complementary angles in the holes of the discs. For example, if the hole is 270°, the key is 180°, and if the hole is 240° (270° minus 30°), the key is 150° (180° with 30° notch) of the circle. In addition, there is a notch in the perimeter of each disc. A sidebar inside an opening in the lock cylinder around the discs, and an edge in the casing obstructs the movement of the cylinder beyond the 90°.
When a correct key is inserted and turned, all the discs will rotate such that notches in the perimeters line up. This allows a sidebar to drop from the cylinder into the groove made by the lined-up notches in the disks, so that it does not obstruct the cylinder, allowing the cylinder to rotate and open the lock.
The lock is locked again by rotating it into the other direction, sliding the sidebar back into the cylinder opening and allowing the straight edge of the key to return the discs to the scrambled "zero" position.
Disk tumblers are difficult to pick, and are sold as "high security" locks. Picking the lock is not impossible, but requires a lot of time, a dedicated, professionally made tool and special expertise. The disc tumbler lock cannot be bumped. This level of difficulty tends to drive attention to alternative methods of gaining entry.
The locking mechanism can be disabled destructively by drilling into the lock to destroy the sidebar. Anti-drilling plates can be installed to prevent this.
The lock was invented by Emil Henriksson in 1907 and manufactured by Abloy. Nearly all the houses in Finland use Abloy keys, although they are also widely used in various locales worldwide.
ABUS manufactures padlocks and cycle locks employing disc tumbler cylinders in their Plus line.
A Tippler is a breed of domestic pigeon bred to participate in endurance competitions. Flying results of up to 22 hours (non-stop) have been reported (see photo at right).
All races of breeds of domestic pigeon have been evolved from the Rock Pigeon (Columba livia) that cohabits with man between the Mediterranean and China. The domestic pigeon breeds are believed to have been developed in the Middle East. As to the origin of the Tippler we are at a loss for accurate data. According to one theory, the Tippler is supposed to have been a cross between the Tumbler and the Cumulet in order to improve their flying qualities and give them a larger range of flight, that is, they rake more, which keeps them longer on the wing. This long-term flying has helped to get rid of the tumbling properties. There is no doubt that it is man-made through selective breeding. They are of Tumbler descent, but beyond this it is merely a matter of speculation. The breed is thought to be originated in Congleton and Macclesfield mining town in England, around the year 1845. The aim of the old time breeders was to perfect a graceful action of the wings, or "Butterfly Action" and it is the ease and grace with which the wings are used that enable the Tippler to attain its marvelous duration of flight. Wendell Levi in his book The Pigeon cites a reference from Hepworth (1893) who interviewed a W. Jolly of Mill Green who in 1893 stated that he had been breeding Tipplers for fifty six years. That would take the origin back to at least 1837. Levi also comments that the breed was developed around Rainow and Macclesfield, and goes on to mention "Macclesfield Tipplers", a strain or type of Tippler (See below), and that they were named after the region they were developed in.
There are a number of well-known types of tipplers named after different breeders or the location they originated from. Most of these types have flown over 19 hours many times.
Hughes are, for instance, a type of tippler bred by Gordon Hughes in Derby, with a flying record of 18:07 in 1976, young birds.][
Another famous type is the Boden bred by Jack Boden in Handsworth with a flying record of 20:40 in 1975, old birds. Bodens have also flown for over 20 hours many times.][
"Sam Billingham", Arthur Newton, Joe Davies, and Jack Holland were also among the top breeders of England.][
Other popular types include "Lovatt", "Merredith", Shannon also known as Irish Delight, and Sheffield which usually comes in colors red and yellow.][
Tipplers are very intelligent (see Pigeon intelligence) birds and can be trained to fly long hours and drop only when the trainer asks them to.
The following training program was published by W. Matthews in N.T.U. Yearbook 1987:
"Thirty-Six Stages for the Flying Tippler Novice".
The Homing pigeon flies to race home, the Roller pigeon flies to roll, but the Tippler just flies and flies. The fanciers of Tipplers can compete against others anywhere in the world without leaving the confines of their own home. A kit of Tipplers consists of three or more pigeons. The tippler team is best when small; controlling and managing a small kit is in fact easier. Each Tippler club has a set of defined flying rules. Generally, the aim is to let the whole kit of Tipplers fly above/around the house for as long as possible. When one of the Tipplers lands, or if the fancier gives the landing sign, that is the end of the competition. Usually, the birds have to be seen every hour during serious competitions by the referee to make sure that they are indeed flying. Most clubs have their flying rules based on the "NTU flying rules".
There are two categories of competition: young birds and old birds. A young bird is one hatched during the current year, and in order to qualify for young bird competition, must bear a seamless band issued for that year. Any bird wearing a band issued for any previous year is regarded as an old bird regardless of its actual age. The first old bird race is usually about the middle of April, the rest following at two week intervals. The most important competition is organized on the so-called Long Day. The longest day (usually in weekend) of the year.
The Turbit is a breed of fancy pigeon developed over many years of selective breeding. Turbits, along with other varieties of domesticated pigeons, are all descendants from the Rock Pigeon (Columba livia). The breed is known for its peaked crest, short beak and frill of feathers on its breast.
This is an alphabetical list of pigeon breeds. Pigeons and doves are members of the bird family Columbidae. Doves tend to be smaller birds and pigeons larger ones, although this distinction is not consistently applied.
The birds listed here are breeds of the Domestic Pigeon (Columba livia domestica). Other Columbidae species (e.g., the domesticated Barbary Dove, Streptopelia risoria) have been developed into breeds, but these are generally simple color variations. See also List of Columbidae species.
Hot-wiring is the process of bypassing an automobile's ignition interlock and thus starting it without the key. A vehicle owner who has lost their key or a thief attempting to steal the vehicle may implement this process.
Hot-wiring generally involves connecting the two wires which complete the circuit when the key is in the "on" position (turning on the fuel pump and other necessary components), then touching the wire that connects to the starter. The specific method of hot-wiring a vehicle is dependent on the particular vehicle's electrical ignition system. Remote start units access the same wires as conventional ignition methods. Listings of wire colours and locations and ignition system schematics may sometimes be found in Internet databases.
Older vehicles, especially ones made before 1986, which have a carbureted engine and a single ignition coil and distributor, can be hot-wired from the engine bay. Using standard lock picking to start a car is now usually ineffective, since most cars now use electronic chip or transponder verification.
Thieves lacking the basic mechanical skills and knowledge of automotive electrical systems sometimes simply use physical force to bypass the ignition lock, smashing the key mechanism to reveal the rotation switch, which is operated by the key's tumbler.
The pin tumbler lock (or Yale lock, after lock manufacturers Yale) is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key. Pin tumblers are most commonly employed in cylinder locks, but may also be found in tubular pin tumbler locks (also known as radial locks).
The basic principles of the pin tumbler lock may date as far back as 4000 BC in Egypt; the lock consisted of a wooden post affixed to the door, and a horizontal bolt that slid into the post. The bolt had vertical openings into which a set of pins fit. These could be lifted, using a key, to a sufficient height to allow the bolt to move and unlock the door.
In 1805, the earliest patent for a double-acting pin tumbler lock was granted to American physician Abraham O. Stansbury in England. It was based on earlier Egyptian locks and Joseph Bramah's tubular pin tumbler lock. Two years later, Stansbury was granted a patent in the United States for his lock.
In 1848, Linus Yale, Sr. invented the modern pin-tumbler lock. In 1861, Linus Yale, Jr. was inspired by the original 1840s pin-tumbler lock designed by his father, thus inventing and patenting a smaller flat key with serrated edges as well as pins of varying lengths within the lock itself, the same design of the pin-tumbler lock which still remains in use today.
The pin tumbler is commonly used in cylinder locks. In this type of lock, an outer casing has a cylindrical hole in which the plug is housed. To open the lock, the plug must rotate.
The plug has a straight-shaped slot known as the keyway at one end to allow the key to enter the plug; the other end may have a cam or lever which activates a mechanism to retract a locking bolt. The keyway often has protruding ledges which serve to prevent the key pins from falling into the plug, and to make the lock more resistant to picking. A series of holes, typically five or six of them, are drilled vertically into the plug. These holes contain key pins of various lengths, which are rounded to permit the key to slide over them easily.
Above each key pin is a corresponding set of driver pins, which are spring-loaded. Simpler locks typically have only one driver pin for each key pin, but locks requiring multi-keyed entry, such as a group of locks having a master key, may have extra driver pins known as spacer pins. The outer casing has several vertical shafts, which hold the spring-loaded pins.
When the plug and outer casing are assembled, the pins are pushed down into the plug by the springs. The point where the plug and cylinder meet is called the shear point. With a key properly cut and inserted into the groove on the end of the plug, the pins will rise causing them to align exactly at the shear point. This allows the plug to rotate, thus opening the lock. When the key is not in the lock, the pins straddle the shear point, preventing the plug from rotating.
A master keyed lock is a variation of the pin tumbler lock that allows the lock to be opened with two (or more) different keys. This type is often used for doorlocks in commercial buildings with multiple tenants, such as office buildings, hotels, and storage facilities. Each tenant is given a key that only unlocks his own door, called the change key, but the second key is the master key, which unlocks all the doors, and is usually kept by the building manager, so he can enter any room in the building.
In a master keyed lock, each of the pin stacks in the lock has three pins in it instead of two. Between the driver pin and the key pin is a third pin called the spacer pin. Thus each pin line has two shear points, one where the driver and spacer pins meet, and one where the spacer and key pins meet. So the lock will open with two keys, one aligns the first set of shear points and the other aligns the second set of shear points. The locks are manufactured so one set of shear points is unique to each lock, while the second set is identical in all the locks. A more secure type of mechanism has two separate tumblers, each opened by one key.
More complicated master-key lock systems are also made, with two or more levels of master keying, so there can be subordinate master keys which open only certain subsets of the locks, and a top-level master key which opens all the locks.
Tumbler Ridge Airport, (IATA: TUX, TC LID: CBX7), is located 6 nautical miles (11 km; 6.9 mi) south of Tumbler Ridge, British Columbia, Canada.