Abstract: A composite nonwoven fabric suitable for undergoing pleating to form filtration media includes two nonwoven fabric layers which are adhesively bonded. One layer is an air permeable nonwoven web of continuous filaments. A high loft nonwoven batt of staple fibers is laminated to the nonwoven web layer. The nonwoven batt has a gradient fiber density and includes a first layer of relatively low denier fibers and a second layer of relatively higher denier fibers.

Abstract: A consolidation apparatus includes a female mold having a first portion and a second portion, a movable caul plate within the first portion of the female mold, and a pressure bladder disposed between the caul plate and the second portion of the female mold. A pressurization line communicates between the interior of the pressure bladder and a gas source exterior to the female mold, and an evacuation line communicating between the unfilled space between the caul plate and the second portion, and a vacuum source exterior to the female mold. In using the apparatus, a workpiece is loaded into the first portion of the female mold between the caul plate and the first portion. The consolidation apparatus and the workpiece contained therein are heated, a pressure is applied to the pressurization line, and a vacuum is simultaneously applied to the evacuation line.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3)wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is an aromatic substituted saturated hydrocarbyl group produced by the incorporation of one or more alkenyl substituted aromatic hydrocarbons containing 8-25 carbon atoms into the M--Z linkage; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R.sup.1, R.sup.2, and R.sup.

Abstract: A colored anodic coating for use on surfaces of substrates, e.g. aluminum substrates in which it is desirable to maintain a high solar absorptance (a) and a high infrared emittance (e), particularly in low earth orbit space environments. This anodic coating is preferably a dark colored coating, and even more preferably a black coating. This coating allows a touch temperature within an acceptable design range to preclude burning of an astronaut in case of contact, but also allows a solar radiation absorption in an amount such that an a/e ratio of unity is achieved. The coating of the invention comprises a first layer in the form of an acid anodized colored anodic layer for achieving a high solar absorptance and a second or high emittance layer in the form of a clear acid anodized layer for achieving a high emittance. The entire coating is quite thin, e.g. 1-2 mils and is quite stable in a hostile space environment of the type encountered in a low earth orbit.

Abstract: A device for engraving intaglio cylinders and similar printing forms having an engraving tool which, together with a sensing member sensing the surface of the printing form to be engraved, is mounted in a holder movable relative to the surface of the printing form. The sensing member is a distance measuring member which contactlessly measures the distance from the surface of the printing form. On the basis of the distance measured from the distance-measuring member, the holder is adjusted relative to the surface of the printing form by an adjusting element, for maintaining a predetermined tool distance between the engraving tool and the surface to be engraved.

Abstract: This invention relates to a high-strength and high-toughness heat-resisting steel formed from a heat-resisting steel containing, on a weight percentage basis, 0.08 to 0.25% carbon, up to 0.10% silicon, up to 0.10% manganese, 0.05 to 1.0% nickel, 10.0 to 12.5% chromium, 0.6 to 1.9% molybdenum, 1.0 to 1.95% tungsten, 0.10 to 0.35% vanadium, 0.02 to 0.10% niobium, 0.01 to 0.08% nitrogen, 0.001 to 0.01% boron, and 2.0 to 8.0% cobalt, the balance being substantially iron, and having a structure consisting of a tempered martensite matrix.

Abstract: A yarn takeup apparatus for winding a continuously advancing yarn into yarn packages and which has a rotatable winding turret which supports for rotation two winding spindles. By the rotation of the winding turret, the winding spindles are moved alternately to a winding range and a doffing range. To this end, the winding spindles are mounted on the winding turret such that the spindles are movable relative to the winding turret respectively between a radially outer position and a radially inner position by a moveable spindle mount. At the beginning of the winding operation, the winding spindles are in the outer position, and during the build of the package, an evasive movement of the winding spindle is performed by movement of its mount and/or rotation of the winding turret.

Abstract: A reel-up in which paper is reeled up on reeling drums to form paper reels, said reel-up having two parallel stand members; a surface winding mechanism in the form of a rotating surface winding drum and/or a belt to carry the web and deliver it to one of said reeling drums or a paper reel formed or being formed thereon; and a secondary system including first and second secondary units for alternate receipt of new reeling drums. Each secondary unit, includes an outer first secondary member and an inner second secondary member, each of the secondary members having a linearly movable secondary body, an actuator for moving the secondary body, and a press device to maintain a predetermined linear pressure in the nip between the surface winding means and the paper reel as it increases in size.

Abstract: The invention concerns a handgun which comprises a trigger (42), a firing mechanism arranged to be actuated by the trigger and to fire a cartridge, a barrel (4) through which the bullet of the cartridge is projected when the cartridge is fired and a butt (60) which is arranged to be gripped in the hand of a user. The axis (57) of the barrel, and hence the line of action of a recoil force which is generated when the cartridge is fired, is at least substantially aligned with the line of action of a resisting force applied to the handgun by the use's hand. Also, the trigger is located above the axis of the barrel.