Look up obturation in Wiktionary, the free dictionary. Obturation is the necessary barrel blockage or fit in a firearm or airgun created by a deformed...
8 KB (1,125 words) - 06:53, 14 April 2024
War I. The major problem to be solved with breechloading artillery was obturation: the sealing of the breech after firing to ensure that none of the gases...
16 KB (2,146 words) - 18:07, 14 December 2023
relatively thin, tough and deformable seal known as a driving band or obturation ring needed to trap propellant gases behind a projectile, and also keep...
15 KB (1,911 words) - 23:13, 9 July 2024
Mineral trioxide aggregate (MTA) is an alkaline, cementitious dental repair material. MTA is used for creating apical plugs during apexification, repairing...
17 KB (2,223 words) - 04:41, 10 September 2024
The palatal obturation may be managed temporarily or may be sustained for longer periods of time. Location-specific palatal obturation has been documented...
8 KB (1,190 words) - 16:46, 25 March 2020
the original propellant charge bypassed the projectile due to faulty obturation and prematurely ignited the subsidiary charges before the shell passed...
32 KB (3,757 words) - 04:23, 4 September 2024
which would lead to the barrel shattering when the weapon was fired. The obturation, a big problem in earlier Krupp rifled breech loaders, was ensured by...
10 KB (996 words) - 04:32, 4 February 2024
of a rifled long gun, yet maintain good accuracy during firing due to obturation by expansion of the bullet's base when fired. The Minié ball is a cylindro-conoidal...
10 KB (1,184 words) - 07:03, 15 July 2024
decontamination of the hollows with small files and irrigating solutions, and the obturation (filling) of the decontaminated canals. Filling of the cleaned and decontaminated...
52 KB (6,494 words) - 17:23, 6 September 2024
disinfection to a satisfactory length but also provides a shape conducive to obturation (filling of the canal). Hand files can provide tactile sensation when...
18 KB (2,666 words) - 23:46, 13 December 2023
century. However, although it was the first cartridge to use a form of obturation, a feature integral to a successful breech-loading cartridge, Pauly died...
101 KB (12,981 words) - 04:58, 9 September 2024
ammunition use sliding-block or sliding-wedge breeches and the case provides obturation which seals the breech of the gun and prevents propellant gasses from...
64 KB (8,508 words) - 15:07, 19 August 2024
Obturating ring (redirect from Obturation ring)
An obturating ring is a ring of relatively soft material designed to obturate under pressure to form a seal. Obturating rings are often found in artillery...
2 KB (231 words) - 04:13, 1 June 2024
after, Vickers acquired the British patents. Welin breech blocks provide obturation for artillery pieces which use separate loading bagged charges and projectiles...
5 KB (581 words) - 02:10, 6 May 2024
leaking out of the breech; this is called obturation. With bagged charges, the breech itself provides obturation and holds the primer. In either case, the...
124 KB (16,122 words) - 13:36, 10 September 2024
Marlin, Jay; Krakow, Alvin Arlen; Gron, Poul (1977). "Three-dimensional obturation of the root canal using injection-molded, thermoplasticized dental gutta-percha"...
16 KB (1,712 words) - 20:43, 10 September 2024
reduce the spin rate when using a rifled barrel, a "slip obturator" (slip obturation ring) is incorporated that allows the high pressure propellant gasses...
17 KB (1,981 words) - 05:17, 16 August 2024
expanding radially against the gun barrel wall. This created a seal (obturation), which prevented the hot propellant gases (expanding behind the lead...
19 KB (1,765 words) - 23:46, 23 June 2024
interest introduced in 1866 on the Chassepot rifle was the method of obturation of the bolt by a segmented rubber ring which expanded under gas pressure...
15 KB (1,544 words) - 10:38, 8 September 2024
era, and often used paper or linen cartridge cases, which provided no obturation, or sealing of the breech against the expanding gases (such as the Sharps...
8 KB (1,009 words) - 23:42, 6 August 2024
vessels, is usually viewed as a pathological immune response, leading to obturation of lumen of blood vessel and subsequent hypoxic tissue damage, in some...
71 KB (8,533 words) - 03:43, 8 September 2024
fires separate ammunition using metal cartridge cases that also provide obturation. The ammunition is interchangeable with that used with other 152 mm guns...
22 KB (2,349 words) - 02:47, 12 September 2024
which relied upon the power of the gun's firing to effect the gas seal ("obturation") rather than the manual labour in the 1858 design. It was a major supplier...
14 KB (1,830 words) - 07:38, 15 January 2024
fires separate ammunition using a metal cartridge case that also provides obturation. The ammunition is different to that used with 122 mm howitzers. There...
12 KB (1,189 words) - 20:14, 25 August 2024
pieces or be one part. The powder wad acts as the gas seal (known as obturation), and is placed firmly over the powder; it may be a paper or plastic part...
43 KB (5,541 words) - 23:45, 11 September 2024
the block, together with the pressure of the screw behind it, provided "obturation" and sealed the breech to prevent escape of gasses rearward on firing...
18 KB (2,200 words) - 12:41, 14 August 2024
FH70 features included: a vertical sliding-block breech that provided obturation and held a primer magazine containing 12 primers (a similar breech was...
11 KB (1,074 words) - 17:55, 27 August 2024
new design of ordnance using a split sliding block breech with Crossley obturation, instead of the more usual screw breech, to permit bagged charges (no...
26 KB (2,263 words) - 08:22, 23 July 2024
This was also the first fully integrated cartridge and used a form of obturation employing the cartridge itself. Another form of centerfire ammunition...
26 KB (3,417 words) - 11:10, 6 September 2024
Leeson, Rachel (2017). "A case of periradicular surgery: apicoectomy and obturation of the apex, a bold act". Stomatological Disease and Science. 1 (2). doi:10...
18 KB (2,103 words) - 06:07, 31 August 2024