Ferrule

Ferrule (pronounced fer-uhl or fer-ool)

(1) A ring or cap, traditionally of metal, put around the end of a post, cane, or the like, to prevent splitting.

(2) A short (still usually metal) sleeve for strengthening a tool handle at the end holding the tool.

(3) In engineering, a bushing or adapter holding the end of a tube and inserted into a hole in a plate in order to make a tight fit, used in boilers, condensers etc.

(4) In engineering, a bush, gland, small length of tube etc, especially one used for making a joint.

(5) In electrical engineering, a band crimped as part of a cable terminal.

(6) In bladesmithing, a fitting (often of brass) where the blade joins to the handle.

(7) A short ring for reinforcing or decreasing the interior diameter of the end of a tube.

(8) A short plumbing fitting, covered at its outer end and caulked or otherwise fixed to a branch from a pipe so that it can be removed to give access to the interior of the pipe.

(9) In angling, (1) either of two fittings on the end of a section of a sectional fishing rod, one fitting serving as a plug and the other as a socket for fastening the sections together or (2) one of two or more small rings spaced along the top of a casting rod to hold and guide the line.

(10) In mountaineering, the metal spike at the end of the shaft of an ice axe.

(11) In billiards, the plastic band attaching the tip to the cue.

(12) The pinched metal band which holds the bristles of a paintbrush.

(13) The pinched metal band which holds in place on the shaft the eraser of a pencil.

(14) To furnish or equip a device with a ferrule.

1605-1615: From the Middle English verel, virel, virole (ferrule; metal pivot on the end of an axle), altered under the influence of the Latin ferrum (iron), from the Old French virole (ferrule; collar), from the Latin viriola (little bracelet), diminutive of viria (bracelet worn by men) (influenced by the Latin ferrum (iron)), from the Gaulish, from the Proto-Celtic weiros (crooked) (which may be compared with the Middle Irish fiar (bent, crooked), the Welsh gŵyr and the Breton gwar (curved)), from the primitive Indo-European weyhros (threaded, turned, twisted), from weyh- (to turn, twist, weave).  The alternative spelling is ferule.  Ferrule is a noun and ferruled is a verb & adjective and ferruling is a verb; the noun plural is ferrules.

Comrade Stalin (left), diagram of an ice axe (centre) and comrade Trotsky (right).

Comrade Leon Trotsky (1879-1940; founder of the Fourth International) in The Revolution Betrayed: What Is the Soviet Union and Where Is It Going? (1936) had a feeling for the political phrase and labelled the state created by comrade Stalin (1878-1953; Soviet leader 1924-1953) a “Soviet Thermidor” because although Tsarist era capitalism wasn’t re-created (a la the monarchy in France not being restored in the 1790s), the combination of a bureaucracy supporting a personality cult (even if the latter was in 1936 still somewhat disguised) was “a counterrevolutionary regression” which betrayed what was achieved by comrade Vladimir Lenin (1870–1924; head of government of Russia or Soviet Union 1917-1924).  The phrase caught the imagination of many, notably those in the Partido Obrero de Unificación Marxista (The POUM, the Workers' Party of Marxist Unification), a non-communist Marxist party (a surprisingly populated fork of left-wing thought) which comrade Stalin correctly associated with Trotskyism.  The POUM was highly productive in thought but drifted increasingly far from the moorings of political reality although rhetoric which included polemics like “Stalinist Thermidorians have established in Russia the bureaucratic regime of a poisoned dictator.”  Agents of the Narodný komissariat vnutrennih del (NKVD, The People's Commissariat for Internal Affairs and one of the many predecessors to the KGB), answerable only to comrade Stalin, killed dozens of POUM’s Central Committee which ended the organization’s effectiveness for a generation. In his prodigious memory, comrade Stalin filed away annoying phrases and in 1940 he had comrade Trotsky murdered in Mexico.  The murder weapon was an ice-axe.  Ferrules are used on ice-axes as to absorb and distribute stresses, reducing the tendency of the timber handles to split or fragment.

The ferrule also played a role in the assassination by the Bulgarian Secret Service of comrade Georgi Ivanov Markov (1929–1978), a troublesome dissident writer who had annoyed the communist regime in the People's Republic of Bulgaria.  In 1969, comrade Markov defected to the West and gained political asylum in England where, based in London, he worked as a journalist and broadcaster for the BBC World Service, the US-funded Radio Free Europe and West Germany's Deutsche Welle.  On these platforms, his critique of the ruling party in Sofia became increasingly vitriolic which-obviously, annoyed the politburo even more.  Accordingly, they arranged his murder and the weapon was that ubiquitous feature of London life: the umbrella.

Replica of “Umbrella gun” produced by the KGB’s Moscow laboratory, 1978, International museum of spying.

The Soviet Union’s (USSR) KGB (Komitet Gosudarstvennoy Bezopasnosti), which translates literally at the “Committee for State Security” is better understood as “political secret police”.  It was the last of an alphabet-soup of similar agencies (Cheka, GPU, OGPU, NKGB, NKVD, SMERSH & MGB) which, building on the models of the many secret police forces maintained by Tsarist Russia (1547-1917), was responsible for the USSR’s internal security and beyond its borders, espionage, counter espionage and a range of activities conducted in support of Soviet foreign policy (including that not disclosed and that sometimes denied).  In post-Soviet Russia, the KGB evolved into the Federal Security Service (FSB), comrade Vladimir Putin (b 1952; president or prime minister of Russia since 1999) honing his skills in the institution he apparently joined in 1975.

Mean Girls themed pencils, the ferrule securing the eraser.

The “umbrella gun” used a hollow ferrule which housed a tiny (1.7 mm (.067 inch) in diameter), discharge triggered by a button on the handle used usually to raise the canopy.  Spring-loaded and powered from a small cylinder of compressed air, the pellet was projected at sufficient velocity to penetrate the victim’s clothing & skin and as soon as it became lodged, it began to warm; that was significant because a substance covering two holes in the pellet began melt at body temperature, releasing the poison.  It’s never been clear what the poison was but most authorities suspect it was probably Ricin, a highly potent toxin produced in the seeds of the castor oil plant.