Preparation of surfactants for porous foams comprises reacting cyclic vinyl nitride monomers with esterified, unsatd. diacid by addition polymerization of isolated radicals in the presence of (a) polyoxyalkylene additives of formula H-(polyoxyalkylene chain)t-R, where R is organic or inorganic radical, t is no. of polyoxyalkylene chains reacted with R, (b) organic or inorganic initiators of isolat...

Polyoxyalkylene surfactants for cellular foams can be prepared by reacting by free radical addition polymerization a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid, obtaining a reaction product usable as a surfactant in the formation of phenolic foams, said reaction product comprising a major component useful for said phenolic foams and a mino...

Two embodiments of a mandrel for fabricating an air spring are disclosed. Each has a fixed diameter cylindrical portion and a portion variable in diameter to provide an extension of the cylindrical surface expandable to conic form. An array of fingers are pivotally secured to swing in radial planes to provide the variable diameter portions and are actuated by inflatable sleeves. The fingers are no...

The incidence of peritonitis is reduced in continuous ambulatory peritoneal dialysis by irradiating the peritoneum access tube connection with ultraviolet (UV) radiation so as to have an antimicrobial effect on the fluid flow path defined thereby prior to draining and infusion of dialysis fluid therethrough. The apparatus for effecting UV irradiation of the dialysis fluid flow path includes a hous...

A belt, band or other tire component folding machine and method are characterized by a rotatable and expandable drum comprising a substantially rigid cylindrical deck having a precisely formed peripheral deck edge and an inflatable bladder assembly positioned slightly axially and radially inwardly subjacent the deck edge which cooperate to define a precise fold line along the deck edge at which a ...

Food bags for high temperature sterilization wherein a bag film is provided with the interior surface layer being formed of a material such that components of the material which are transferred into the packaged foods during the high temperature sterilization treatment are held to only extremely small amounts and within prescribed limits. The film is sealed into bag form by the provision of a heat...

A cross country ski rear fastening includes a body fixed on the ski, a resiliently biased fork member movable on the body for locking the footwear heel, and a lever system operable by the skier and connected with and acting on the fork member to cause engagement of the latter with the heel on overcoming a dead center position of the lever system and the biasing force on the fork member.

A heelholder for a safety ski binding having a baseplate, a slide mounted for movement between forward and rearward positions, a soleholder pivotally mounted on the slide for movement between closed and open position, a locking device mounted on the soleholder for movement between an obstructed position where it holds the soleholder in the closed position and an unobstructed position, a locking le...

A watch comprising at least one electronic movement, and a first and a second display means 2, 3, mounted in a case 1. The case 1 is made in two parts 4, 5 each of which bears a display means 2, 3 and is articulated in such a way as to be able selectively to occupy a first position in which the display means are superimposed, with the first hiding the second, and a second position, in which the fi...

The control of the octane requirement increase phenomenon in a spark ignition internal combustion engine is achieved by introducing with the combustion charge a fuel composition containing an octane requirement increase-inhibiting amount of (a) an oil-soluble iron compound and (b) carboxylic acids and/or certain derivatives thereof. In particular the esters of a tertiary alcohol and an unsubstitut...

A free machining cold formable austenitic stainless steel alloy and articles made therefrom which contains in weight percent about -w/o -Carbon 0.15 Max. -Manganese 4 Max. -Chromium 14-20 -Nickel 8-12 -Copper 1.0-2.4 -Nitrogen 0.2 Max. -Free Machining 0.02-0.25 -Additive - with the balance iron and preferably no more than 2 w/o manganese, 1 w/o silicon, 0.04 w/o phosphorus, 0.08 w/o nitrogen. A...

A method of improving the physical properties of high density reinforced reaction injection molded microcellular or solid elastomers is disclosed. The method involves placing an inert filler material wholly in the isocyanate component of a two component reaction system where the other component contains predominantly polyol before mixing the components to effect reaction. This modification will re...

A rubber article having an indicium on the surface of said article, characterized by said indicium having a surface of a first finish, the surface of said article substantially surrounds said indicium having a second finish which is different from said first finish such that a readily visual distinguishable appearance can be seen between the surface of said indicium and the surface substantially s...

A surface of the thermoplastic polyester film which has stickiness after having been heated is treated with a monocarboxylic acid so as to convert hydroxyl groups on the film surface into corresponding ester groups by reaction with the acid. Further, the film surface is treated with a monohydric alcohol so as to convert carboxyl groups on the film surface into corresponding ester groups by reactio...

A composition comprising a combustible material, especially a polyurethane, and a smoke and toxic gas (STG) suppressant system, comprising (A) an STG-suppressant with (B) a combustion rate- and/or flame temperature-reducing component, or (C) a char-stabilizer, components (B) and (C) preferably both being present.

The available equipment for measuring optical properties of paper are inconvenient in use and calibration thereof is inaccurate. In addition, properties of a sample are not analyzed sufficiently. According to the invention, a background screen (2) of an apparatus is adapted to be displaced relative to housing (1) and provided with elements (17-21) for measuring optical properties and calibrating s...

PURPOSE:To obtain desired laser beams instantaneously, and to lengthen life by previously supplying the currents of the irreducible minimum of a demand for lighting an excitation lamp and controlling large currents applied to the excitation lamp in response to the opening and closing of a shutter as necessary. CONSTITUTION:When a laser power supply 1 is turned ON, a power supply circuit 19, a chan...

PURPOSE:To have a quick diagnosis of a fault, by storing the output signals of cascaded timers with the sample time clock signal and then diagnosing the timing of generation of the sample time clock signal. CONSTITUTION:A sample time clock (STC) signal (a) having a cycle T is always supplied to an input terminal 3a and then applied to a timer 1a which is driven at the rear edge of the signal (a). ...

PURPOSE:To eliminate a shift in traveling direction, by performing steering operations such as advance, involving a 90 deg. turn, straight advance, and retard on the basis of the result of detection for the distance moved of a truck body and the result of detection for the boundary between a worked area and an unworked area. CONSTITUTION:An unmanned traveling truck containing a mowing device 4 at ...