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Topic: U-shaped

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Charge (heraldry) - Wikipedia, the free encyclopedia Geological and geographic charges include the mountain (which must be distinguished from the oft-occurring "mount in base vert") and volcano, in addition to the "range of mountains", such as appear in the arms of the Candian province of Alberta and the U.S. State of Colorado. The charges are either in one or more of the tinctures, or umbrated, supposedly represented as a shadow, though the representation is closest to an outline alone (an example of similar terminology applied to the "shadows" of a charge are the arms of Risoul, Hautes Alpes, France). Most armorial achievements include charges, but a few only have a plain tincture (what would be called "colour" in layman's terms, though the word has a different meaning in heraldry) without any device, or a simple division or pattern of the field. en.wikipedia.org /wiki/Charge_(heraldry)   (8870 words)

Shaped charge - Wikipedia, the free encyclopedia A shaped charge is an explosive charge shaped to focus the effect of the released energy. Shaped charges are frequently used as warheads in anti-tank missiles (guided and unguided) and also gun fired projectiles (spun and unspun), rifle grenades, mines, bomblets, torpedoes and various types of air/land/sea launched guided missiles. The spacing between the shaped charge and its target is critical, as there is an optimum standoff distance to achieve the deepest penetration. en.wikipedia.org /wiki/Shaped_charge   (1936 words)

Shaped-charge liner - US Patent 6655291 Shaped charges for use in oil and gas well perforation and retrieval operations typically will consist of a casing which houses a quantity of explosive and a liner formed from a compressed-powder metal mixture. The charge case 24 is typically formed from steel, die cast aluminum, or zinc alloys and has an interior surface or wall 26 that defines a hollow interior of the charge case 24. The outside diameter of the charge tube 18 is such that an annular space 20 is created between the outer surface of the charge tube 18 and the inner wall 14 of the carrier 12. www.patentstorm.us /patents/6655291.html   (2501 words)

Shaped Charge Shaped charges are incorporated in a hollow carrier gun or a strip positioned in the casing. Conventional shaped charges are constructed with a charge case, a hollow conical liner within the case, and a high explosive material positioned between the liner and case. A shaped charge is a concave metal hemisphere or cone (known as a liner) backed by a high explosive, all in a steel or aluminum casing. www.globalsecurity.org /military/systems/munitions/bullets2-shaped-charge.htm   (4454 words)

Explosives The M-2A3 shaped charge is 50/50 pentolite explosive, which can be set off by small arms fire; the M-2A4 is based on Composition B plastic explosive and is not sensitive to small arms hits, though it does have a very small (50-gram) pentolite booster. It also means that a second demolition charge may be used immediately after detonation of the M-2 shaped charge, because the resultant glass slug left in the hole cools almost immediately and can be removed to place the second charge. This charge requires a hole large enough for the can (which is 21 centimeters wide and 43.2 centimeters long) to be bored prior to the use of the charge; the charge is placed in the hole. www.pmulcahy.com /explosives/explosives.html   (4545 words)

PAGE MASTER In both the hand-launched and rifle- or rocket-propelled weapons, the shaped charge warhead is a mass of a highly brisant explosive formed around a hollow metal liner, usually copper or aluminum. The shaped charge effect, variously known as the hollow charge effect, the cavity effect, or the Munroe Effect, dates to the 1880s Naval Torpedo Station, Newport, Rhode Island. The standoff distance, and hence the effectiveness of the shaped charge, also depends upon the terminal velocity of the warhead, the speed at which it strikes the target. www.angelfire.com /mo3/kingspaz/munroe_effect.htm   (1390 words)

Shaped charge perforating device - Patent 4583602 The shaped charges are mounted in a variety of patterns along the length of the carrier member, with the axis of perforation directed generally laterally therefrom. The anterior and dorsal sections of the shaped charges extend outside the outer diameter of the carrier member and a length of helically wound detonator cord passes through an axial aperture in the dorsal section to retain the shaped charges in the carrier member. The shaped charges are mounted on carrier member 10 having the dorsal portion 56 of each shaped charge protruding through aperture 14 in carrier member 10 with the anterior portion 58 of each shaped charge protruding through aperture 12 in carrier member 10. www.freepatentsonline.com /4583602.html   (2339 words)

Zinc alloy shaped charge - US Patent 6216596 Both the cap and capsule portions of the shaped charge are exposed to the wellbore, and, in particular, it is the capsule portion that must disintegrate upon detonation of the charge. A shaped charge is shown with enhanced creep resistance for use in a perforating gun having an elongated spiral strip open to the wellbore through which the charges are attached. wherein the shaped charges are exposed to wellbore fluids as the strip is lowered into position within a wellbore and wherein the shaped charges each have charge bodies which are comprised of an alloy containing, by weight, between about 4 and 12 percent copper, and 4 percent aluminum, and the balance zinc and impurities. www.patentstorm.us /patents/6216596.html   (3265 words)

Shaped charge carrier assembly method - Patent 4915029 A deformable retaining means is integrally formed with the thin wall carrier adjacent a periphery of the charge opening, for initially allowing the shaped charge to be freely received in the charge opening, and for subsequently retaining the shaped charge in the charge opening upon deformation of the deformable retaining means. The charge opening 36A initially has a diametrical clearance 84 between the first and second deformable retaining means 80 and 82, sufficiently large that the generally cylindrical outer surface 52 of shaped charge 38A may be freely received therebetween. The deformable retaining device allows the shaped charge to initially be freely received in the charge opening, but subsequently retains the shaped charge in the charge opening upon deformation of the deformable retaining device. www.freepatentsonline.com /4915029.html   (4138 words)

SWO: House Rules: Shaped Charges A shaped charge is, for lack of a better definition, a formed piece of explosive material that is used for cutting through structural material, usually doors, walls and armor. When an explosive is placed, like a shaped charge, the barrier's normal rating is used to resist the damage. The shape of the charge is usually made up of a metal frame or container that is designed to direct the force of the blast in a single direction, either in a plane or in a straight line, resulting in a cutting effect. www.swo.com /houserules_shapedcharges.shtml   (732 words)

IP.com's Prior Art Database An explosive charge is shaped and held between the plastic housing and the metallic liner. A lightweight linear shaped charge for explosive cutting and penetration of target, which includes a plastic linear housing in the form of a concave channel with an inverted "V" shaped metallic liner mounted within the concave channel. Current commercial linear shaped charges used for explosive cutting are manufactured by squeezing an explosive filled metal tube or pipe into a "V" shaped configuration. www.priorartdatabase.com /IPCOM/000001208   (479 words)

Floridian: True colors He was already known for his shaped canvases, cut into forms ranging from anthropomorphic to geometric, and for favoring a somber, abstract expressionist palette and sensibility. Shaped canvases and creative framing add interest to Trevor Bell's work, but his gift is his vivid and inventive palette. The shaped canvases, in modifying and relating to the spaces around them, approach but do not ever quite become sculpture, perhaps because Bell himself seems to have no ambivalence about his role as a painter, first and foremost. www.sptimes.com /2004/03/14/Floridian/True_colors.shtml   (479 words)

rocket In a shaped charge round the explosive is placed around the outside of the cone in the lower part of the HE cavity. Below, left to right, are the end cap with mortar fuze, shaped charge cone, perforated plate that went below the propellant charge and the base plate with angled ventures to spin stabilize the rocket in flight. To give an example of the effectiveness of this type of projectile, the book “The Illustrated Encyclopedia of Ammunition” shows a 250mm (9.8”) thick piece of armor plate that had been penetrated by a 75mm shaped charge projectile. www.carbinesforcollectors.com /rocket.html   (665 words)

Curved needlepoint canvas A mushroom shaped needlepoint canvas is formed as a hollow curved shell of perforated flexible plastic material, the canvas having a generally oval head part and a tapered stem or body part. Another element to be added to the basic mushroom shape is a full disk of perforated sheet situated in a horizontal plane relative to the upstanding mushroom, with corresponding perforations for ease of attaching to the upstanding mushroom and having diameter corresponding to that of the base at whatever elevation it engaged the base. This canvas is readily modifiable by shortening the bottom of the body part, attaching limbs as arms and legs, and joining pairs of canvases to form enclosed ellipsoidal shapes atop an enclosed truncated cone base. www.freepatentsonline.com /4555429.html   (665 words)

Ilya Bolotowsky Biography, Activities and Lesson Plans Shaped canvases have been around for a long time, from the pointed Medieval triptychs to the long narrow paintings of Pollock in the 1950s, but in modern painting there has been surprisingly little experiment with the actual shape of the painting until recent times. Shaped canvas painting emerged as an outgrowth of Hard Edge during the 60s and 70s. His continued exploration of the unusual canvas shapes -- diamond-shaped and tondo (round) -- combined with his greater range of colors has led to a highly distinctive and personal imagery. www.umfa.utah.edu /?id=MjA1   (665 words)

Artists' canvas and frame assembly In the instance of the illustrated rectangular shaped canvas 12, the frame 18 is of an expanded rectangular shape. The canvas 10 is of rectangular shape for illustration purposes and has a rear face 12 and a front face (not shown) on which the oil or other artistic medium is placed. However, at any point where the finished art is of a satisfactory nature the frame can be retained with the finished canvas for use as the final support for the canvas. www.freepatentsonline.com /4190974.html   (665 words)

Hydra 70 - 2.75 inch Rockets Upon detonation, the shaped charge penetrates in line with its axis and the SM body explodes into high velocity fragments (approximately 195 at 10 grains each up to 5,000 feet per second) to defeat soft targets. Filler for the M156 is 2,2 pounds of WP with.12-pound bursting charge of composition B. The approximate weight of the fuzed warhead is 9.7 pounds. With a shape charge for antiarmor capability, the M247 employs a cone-shaped charge like that of the M72 LAW. www.aircav.com /hydra70.html   (1666 words)

Shaped Charge - 9/11Review Shaped charges are used for piercing rocks in the oil-drilling industry, or for piercing tanks and bunkers in the army. It first used the shaped-charge to pierce the wall and then dropped a bomb inside the building. An anti-bunker missile contains both a shaped charge and a bomb. www.911review.org /Wiki/ShapedCharge.shtml   (446 words)

Shaped charge rod warhead - Patent 4058063 the diverging portions of said explosive charge between said initiating means and said rod structures being shaped so that as a detonation front travels from said initiating means toward said rod structures the explosive energy of said portions is substantially focused in a desired plane. The charge is initiated at the center of its length and because of its shape creates a concentrated pancake configured shock wave and gas cloud expanding radially outward from the center of the missile. At either or b ends of the charge an expandable rod structure or rod fragments are placed and arranged at any desired angle to the longitudinal axis of the charge. www.freepatentsonline.com /4058063.html   (1436 words)

Shaped charges (Gerald L. Hurst; Jim Calpin) Considerations which make >shaped charges difficult for kitchen chemists are the uniformity >(both in density and quality) of the explosive and of the >detonation. Several shaped charge liners were sawn up into pieces, and these were then carefully re-assembled and kept in place. A pound of C-4 in even a field packed shaped charge will pierce 7" of steel. yarchive.net /explosives/shaped_charge.html   (708 words)

4_5.html A shaped charge is an explosive device that, upon detonation, directs the explosive force of detonation at a small target area. Shaped charges employ high-order explosives, and usually electric ignition systems.An example of a shaped charge is shown below. The basis for shaped charges is a cone-shaped opening in the explosive material. members.cox.net /casadelgecko/new3/terhand/4_5.html   (1560 words)

Aviation Encyclopedia: AH-64D Longbow Apache When a shaped charge warhead comes into contact with this armour the explosion sets off the block of plastique, which in turn forces out the metal plate, the resulting kinetic energy dissipating the effects of the shaped-charge. The initial charge sets off the reactive armour, causing the metal plate to be blasted outward prematurely. The liner is designed to collapse into an armour-piercing jet of molten metal, capable of penetrating more than 2 inches of armour. www.jolly-rogers.com /airpower/ah-64d/64d-arm.htm   (1517 words)

ARTREVIEW ONLINE/05/01/Bill Kort critiques Graham Peacock The shaped canvas which saw a revival in the early 60's amongst abstract painters had by the end of the decade, if not sooner, lost credibility. The eccentric shape together with the atomised forms turns the surface into a skin, a covering; and as with any organic object we accept the colour incidents along its surface, even if disjunctive, as integral. Stella’s shaped canvases were composed of stripes mimicking the framing edge; his work spawned the term, Literalism. www.artfocus.com /Kort05.html   (1517 words)

JK Hudson's Art Portfolio-D. Rockburne Paper Rockburne plays with the canvas shape more as an optical illusion as in Narcissus (1984), where she takes two L-shaped canvases and attaches them so that one is horizontal and the other is set on the diagonal over the first. She then paints in the outline of the lower canvas on the upper canvas in a hard-edge line. With a return to paint and canvas, Rockburne approaches Post-Painterly Abstraction as she introduces luxurious color and brushwork into her non-objective paintings, while still maintaining her systematic processes. www.jkhudson.com /art_writings/fineart_rockburne.html   (1517 words)

Jack Reilly - A Chronological History Shaped canvases were stacked up to five layers deep, with each layer containing images and techniques unique to itself. The naturalistic portion of the painting is contained within in a diamond-shaped format and separated from the outer corners of the canvas by gilded frames. It was the shaped-canvas paintings that launched Reilly into a new realm of artistic development as he prolifically produced a variety of compositions based around (what he referred to as) "a series of pictorial events." These illusionistic paintings seemed to jump from the wall towards the viewer while ir www.jackreilly.com /arthistory   (1517 words)

shaped canvas gallery The canvases are not smaller pieces attached to each other, but are single large pieces of canvas stretched over a shaped frame. These paintings are usually made from photographic studies and take weeks or months to build and paint. members.aol.com /kenbmiller/paintings/shaped/shaped.html   (1517 words)

Harvey Quaytman Review by Curt Barnes With his background in shaped canvas, it is understandable how he could have returned to the four-sided figure with a fresh eye and a new sense of possibility. I had first noticed his work at Whitney biennials in the early 70s, when the woods were full of painters exploiting the possibilities of shaped canvas. The shapes may have looked less brittle on the drawing board than in the final realizations, but even so, here was an artist who was pushing the envelope. www.newyorkartworld.com /reviews-nyaw/rev-quaytman-barnes.html   (1517 words)

Livermore National Lab graphic -- shaped explosive charge Often, the code that GLO directs is the two-dimensional hydrodynamic code, CALE (C-language arbitrary Lagrangian-Eulerian), in which is embedded a number of parameters defining the overall size and geometry of the shaped charge. The CALE calculations result in a definition of the geometry of the jet of metal formed when the cone of a particular shaped-charge configuration is compressed by the explosive charge. GLO is repeatedly linked to the physics codes and adjusts the shaped-charge design until it obtains as close a match as possible to the specified hole profile. www.krellinst.org /csgf/labpics/llnl/shaped_charge.html   (470 words)

The Shaped Charge... Many hollow shaped charges have a metal plate in the tip of the projectile being fired that forms a molten metal spike 9it is undetermined if the "spike" is liquid or solid so it is commonly referred to as "plasma" jet. During WWII Allied forces were struck witht he issue of losing many men and armored units to shaped charges specifically from the Panzerschrek and Panzerfaust divisions and units due to the thin armor of the Allied tanks. Today's military (US cause we are the only ones who matter) employ different types of protection against shaped charges. www.dodgeforum.com /m_110718/tm.htm   (1306 words)

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