A sofa-sleeper includes a stationary sofa frame having a front, back and opposed sides, and a sofa bed mechanism including pivotally interconnected head, body, intermediate and foot frame sections which are extendable to form a bed and foldable within the sofa frame to form a seat. The sofa bed mechanism is removably mounted upon the stationary sofa frame by dove-tail shaped brackets mounted on op...

A large umbrella arrangement includes a stand (2) having a mast (10) to which an extendable and retractable support arm (4) is connected. A connecting member (12) is pivotally connected to the middle area of the support arm (4) and at its other end is pivotally connected to the upper end of the mast (10). One end (26) of the support arm (4) engages the mast (10) by means of a roll (32). This end (...

A method of producing a cold-rolled steel sheet having improved press-formability without employing hot rolling is disclosed. The method comprises preparing a molten steel having the following chemical composition: C: 0.001-0.015%, Mn: 0.01-1.20%, sol.Al: not more than 0.10% N: not more than 0.0060%, at least one element selected from the group consisting of Ti: not more than 0.20%, Nb: not more t...

Disclosed are a polyethylene terephthalate film having the sum of F-5 values in longitudinal and transverse directions of 3500 to 5000 kg/cm<2>, absolute shrinkages in longitudinal and transverse directions at 100 DEG C of up to 2.5% and an amorphous orientation factor of - 1.5 to 0.5, a process for the production of the film and a magnetic recording medium having the film as a base. A polyethylen...

A device is disclosed for measuring the concentration of a component of a complex medium, including a dialyzer for separating at least a portion of the component into the dialysate from the complex medium, means for measuring the concentration of the component in the dialyzate, and valve means having a measurement position and calibration position for alternatingly directing the complex medium and...

A plasma arc torch is disclosed which comprises front and rear coaxially aligned electrodes, and vortex generator for generating a vortical flow of gas, such as air, between the two electrodes. A power supply system is operatively connected to the two electrodes for generating an arc which is adapted to extend axially from the rear electrode through the vortical flow of gas and to an attachment po...

To effect shelling of crustaceans surface heated crustaceans are shot against a water covered deflector plate in a vacuum chamber, whereby a practically complete deshelling is obtainable without any recirculation. The crustaceans are shot against the deflector plate in very thin flows through periodically operating inlet valves, whereby each single crustaceans will hit the deflector plate and be e...

A surface hardner for nylon lens comprising (a) a polyfunctional acrylic ester monomer, (b) a photoinitiator, and (c) a diluent, said photoinitiator consisting of a combination of a hydrogen abstraction type photoinitiator and an alpha -cleavage type photoinitiator, and optionally a silane compound containing at least one polymerizable unsaturated bond. Said surface hardner is effective for givin...

Preliminarily foamed particles of a non-crosslinked polypropylene resin based on an alpha-olefin/propylene random copolymer having an amount of the heat of crystallization in the range of 5 to 15 cal/g, said preliminarily foamed particles having such a crystal structure that when a DSC curve is drawn by means of a differential scanning calorimeter, by heating 1 to 3 mg of the preliminarily foamed ...

A foam structure having a density of less than about 20 lbs/ft3. The method of forming the same comprising forming a homogeneous melt blend under pressure of a polymer member selected from the group consisting of polyetherimide resin particles, polycarbonate resin particles, a polymer blend of polyphenylene oxide and polystyrene in particle form imbibed with a blowing agent, followed by extrusion ...

Disclosed are wet filament winding resins that are intimate admixtures consisting essentially of polybutadiene polymers whose functionality resides solely in unsaturation, an unsaturated monomer component, a peroxide free-radical initiator and a block copolymer impact modifier. The resins have long pot lives and cure into low density resin matrices in composite structures. The resin matrices can h...

A method for easily, inexpensively and efficiently producing an improved water-absorbent resin having a high water absorbency and a high water absorption rate and capable of forming a gel having a high gel strength and nonstickiness, in which water-absorbent resin particles which contain water and a crosslinking agent and are in the semi-swollen state are agitated at an elevated temperature in the...

The present invention is concerned with the treatment of freshly produced open pored phenolic resin foams in a high frequency field. This treatment makes possible a very quick removal of the blowing agent remaining in the pores, as well as of the formaldehyde which has been retained. The treatment replaces the time consuming aeration of the phenolic resin foam which was hitherto necessary in order...

An optical apparatus is provided which uses a semiconductor laser which has different focal points of oscillated light rays therefrom in the junction plane and in a plane perpendicular thereto, so as to generate an astigmatism. At least one plane-parallel body of a predetermined thickness and capable of transmitting light is arranged in the optical path of the light rays from the semiconductor las...

of the disclosure: A pulverulent polymer composition which is readily pourable, has a low tendency to form dust and has good stability on storage is composed of a mixture of a vinyl ester polymer and a small proportion of a hyarophobic silica. The composition is prepared by spray drying an aqueous vinyl ester polymer dispersion in the presence of a hydrophobic silica. The silica is preferably a pr...

1. Phenolic resin compositions suitable for the manufacture of phenolic prepreg mats, according to which the compositions employed for impregnating the fibre mats consist of phenolformaldehyde resins of the resole type, fillers, pigments and hardening agents, characterized in that these compositions contain an additive consisting of at least 20% by weight of an alkali or alkaline-earth metal metab...

A balloon distress marker wherein the balloon has, in a wall thereof, a small compartment interiorly of the balloon and accessible through an aperture in the wall of the balloon for retaining an article therein. The compartment is substantially smaller than the volumne of the balloon and is useable for interconnecting balloons in series or inserting a flashlight therein to illuminate the balloon. ...

(Meth)-acrylic acid esters of the formula in which R1 and R2 are each independently hydrogen, chlorine, fluorine or a C1- to C4-alkyl radical and R3 and R4 are identical or different and represent the group wherein Y is a divalent bridge member from the group and Z is a straight-chain or branched hydrocarbon chain which has 2 to 10 carbon atoms, can optionally co...

In the aerobic digestion of sludges, particularly but not exclusively primary sedimentation sewage sludges, a layer of sludge foam is deliberately maintained over the sludge surface to improve the efficiency of the process. The layer of foam may have a volume of at least 50% of that of the sludge. The digestion process is effected in a digester, in which the amount of foam may be reduced (as neces...