PURPOSE: To conduct easily and correctly the standard measurement and improve the accuracy of a sample measurement by effecting by the turns a standard measurement and sample measurement through the same optical unit with respect to a color forming layer after the color forming layer is pressed against a fluid reservoir layer by means of a pressing element. CONSTITUTION: A standard measurement and...

A vehicle guidance system for a tractor has a horizontal scanning laser on the tractor and a target arranged to return the laser beam along its path. When returned laser light is detected, indicating alignment of the beam with the target, the angle of the beam relative to the tractor axis illustrates the steering correction required. The target has an array of beam reflecting elements patterned to...

Rigid closed-cell polyisocyanate-based foams are prepared by the reaction of polyisocyanate with a polyol composition having an average hydroxyl number of 100 to 500 and comprising at least one polyol component containing from 4 to 8 active hydrogen atoms per molecule and having a hydroxyl number of from 100 to 500. The blowing of the foam is essentially with carbon dioxide generated from the reac...

A force transfer mechanism including a force lever through which an input force is transmitted to an output member with mechanical advantage only after the output member encounters sufficient resistance to overcome a friction connection between an input member and the output member indicative of the input member having moved from a retracted position to an operative position. The resultant movemen...

The invention relates to a method of drilling apertures for branch lines (A) blocked by renovation lining of a main pipeline (B) which comprises setting a water plug (1) in the opening of each branch line (A) prior to lining, said water plug (1) carrying a position marker (14) comprising an antenna coil and a resonator adapted to be excited by a driving signal and, after stoppage of the driving si...

A dilute solution of methyl ethyl ketone is concentrated by pervaporation through a fluorinated ion exchange membrane which has been exchanged with a quaternary ammonium cation.

A foamed and expanded low density polyethylene sheet or tube possesses both superior buoyancy and thermal resistance characteristics. The sheet or tube is made by a process including mixing a low density polyethylene with a blowing agent, surface activation agent and, preferably, a separation agent, heating the mixture at different temperatures to first melt the mixture and then gasify the blowing...

The adhesion of highly oriented polyolefin objects, in particular polyethylene filaments, to e.g. polar, polymer matrices is improved by contacting the surface of the object with a solvent for 0.5-2 minutes at a temperature above the dissolution point of the polyolefin.

A compatible polymer mixture, comprising: (I) 0.1-99.9 wt. % of a polymer P1, comprised of monomer units of formula I (I) wherein R1 is hydrogen or a methyl group; and (II) 99.9-9-0.1 wt. % of a copolymer P2, comprised of: 30-90 parts by wt. of a methacrylic acid ester monomer of formula II (II) wherein R2 is methyl or ethyl; 70-10 parts by wt. of a methacrylic acid ester ...

Acryl rubber foaming compositions comprising (A) an acrylic polymer prepared by copolymerizing an acrylate or methacrylate with a monomer having at least two aliphatic unsaturated bonds per molecule, (B) a pyrolytic organic foaming agent, and (C) an organic peroxide can be molded, cured and foamed into acryl rubber foams having improved heat insulation, heat resistance, weatherability, crack resis...

A process and composition is provided for a hydratable, alloy gum composition of Cassia gum and another gelling and thickening agent which composition is capable of forming a clear, stable colloidal solution. The compositions are usually more easily dispersed in an aqueous solution than either component alone. An alloy gum composition of Cassia gum and xanthan gum is particularly useful for absorb...

A pervaporation process for separating organic contaminants from evaporator condensate streams is disclosed. The process employs a permselective membrane that is selectively permeable to an organic component of the condensate. The process involves contacting the feed side of the membrane with a liquid condensate stream, and withdrawing from the permeate side a vapor enriched in the organic compone...

PCT No. PCT/US87/00287 Sec. 371 Date Aug. 17, 1988 Sec. 102(e) Date Aug. 17, 1988 PCT Filed Feb. 6, 1987 PCT Pub. No. WO87/04972 PCT Pub. Date Aug. 27, 1987.Disclosed is a method and apparatus for avoiding the clumping of dry fibers having diameters and lengths in certain ranges during blending of such fibers into a dry or wet particulate material. The process comprises distributing fibers in a va...

A method for altering the surface appearance or texture of a textile or other substrate comprises impinging the surface of the substrate (25) with a high velocity fluid jet (18) with water being a preferred fluid. The substrate is placed against a support (20), and a fluid stream having a peak dynamic pressure in excess of about 2068 kPa (300 p.s.i.g) is directed onto the fabric surface. Various m...

Manufacture of a cement-based mixture containing reinforcing fibres and forming a paste by mixing cement and, per 100 parts by weight of cement, approximately 5 parts to approximately 20 parts by weight of a pulverulent first material whose particles have a mean diameter of between 1/5 and 1/10 of the mean diameter of the particles of the said cement, approximately 20 parts to approximately 35 par...

A polypropylene strap for use in packaging articles. The polypropylene strap has a high tensile strength, a low elongation, a high rigidity, a high abrasion resistance, and flexible surfaces, and it is not easily split in the longitudinal direction. This strap has superficial layers stretched at a low draw rate of 1.2-3, and an inner portion stretched at a high draw rate of 10-18. The total thickn...

Polymeric Compositions A polymer of an ethylenically unsaturated monomer containing a pendant hydrophobic group and, optionally, other monomers such as (meth) acrylic acid, ethyl acrylate or acrylamide is provided as a stable, substantially anhydrous dispersion containing at least 40% by weight of the polymer in a continuous phase of a non-aqueous liquid. The polymer in the dispersion generally in...

Composite-coated flat-rolled steel can stock processing and product for fabrication of drawn one-piece cup-shaped work product or can end walls. Single or double-reduced flat-rolled steel, after cleaning, is chemically treated to apply a chrome oxide coating of about three hundred (300) to five hundred (500) micrograms per square foot to each substrate surface followed by utilization of a dual-org...

A method and device for producing flux equalized x-ray images for medical radiography through the use of a scanning fan shaped x-ray beam and a feedback control system which regulates the beam intensity at a multiple number of points along the fan beam to compensate for the x-ray attenuation variations of the patient.

A radiographic machine in which the exposure is equalized as between different areas of the image plane so as to enhance high spatial frequency features of the image and suppress low spatial frequency features and achieve other benefits as well. A fan beam which is wide enough to encompass the object being imaged is swept across the object and segments of that beam are individually pulse width mod...