Plant materials such as petals, leaves, fruits, are gathered, dried at a minimum temperature of 70 DEG C., and pulverized so as to produce light-fast, lustrous dyestuffs. Subsequently, an acid or base substance is added. It is preferred that a pH value that corresponds to the pH value of the plant materials when fresh is set. A binding agent can be added subsequently.

An anode for cathodically-protected steel-reinforced concrete is embedded in an ion-conductive overlay on the concrete structure. The anode comprises at least one sheet of highly expanded valve metal mesh having a pattern of voids defined by a network of valve metal strands (3, 22) connected at a multiplicity of nodes (25). This provides a redundancy of current-carrying paths through the mesh whic...

PCT No. PCT/AU86/00138 Sec. 371 Date Jan. 12, 1987 Sec. 102(e) Date Jan. 12, 1987 PCT Filed May 15, 1986 PCT Pub. No. WO86/06761 PCT Pub. Date Nov. 20, 1986.Electrolytic recovery of silver metal is accomplished by application of a direct current with controlled ripple such that for any concentration of silver in the electrolyte, the instantaneous magnitude of the electrical potential across the el...

An injector driver fault detect and protection device for use with fuel injection systems that include at least one solenoid (17) for controlling a fuel injection valve, control means for providing a control signal, injector driver means (14) responsive to the control signal for providing a drive signal, and a current control switch (16) being responsive to the drive signal for selectively closing...

PCT No. PCT/GB86/00256 Sec. 371 Date Feb. 27, 1987 Sec. 102(e) Date Feb. 27, 1987 PCT Filed May 9, 1986 PCT Pub. No. WO86/06788 PCT Pub. Date Nov. 20, 1986.A device for impulsively varying the timing of the rotation of a camshaft (1) relative to a driving sprocket wheel (14) mounted on a stubaxle (102) comprises followers (119,110) rotatable with respective follower shafts (103,104) mounted on the...

A disposable container (10) for shipping a hazardous or ultra-high purity liquid material, having a body of substantially vapor-impermeable organic polymer material, such as fluorinated linear high-density polyethylene, a bubbler tube (20) extending from the top of the container having an open end near the bottom of the container, a liquid level detector (30), and an outlet tube (24) on the top of...

A seal and valve system for use with ultrapure semiconductor reagents, the seal comprising a multiple layer septum (30-36) of inert polymer, noble metal and sealing polymer, the valve comprising a valving member (50) including a needle (90) and an operator (80-82), the valve total enclosing the seal and permitting removal of air from contact with the seal and the puncturing of the seal with a need...

A metallized valve, wherein the valve is constructed and composed to facilitate the handling of high-purity chemicals which react with or whose effectiveness is limited by moisture or oxygen.

PCT No. PCT/DE86/00146 Sec. 371 Date Jan. 12, 1987 Sec. 102(e) Date Jan. 12, 1987 PCT Filed Apr. 3, 1986 PCT Pub. No. WO86/06852 PCT Pub. Date Nov. 20, 1986.In a method and an arrangement for aligning, examining and/or measuring two-dimensional objects situated on a table of a measuring machine, which table is displaceable at least in two coordinate directions extending perpendicular to one anothe...

A system of navigation for vehicles is proposed, which is provided with a device (14) for representing a road map as well as with a composite navigation apparatus (10, 11, 12) for the continuous instantaneous determination of the location of the vehicle and with a location display (16) on the representation of the road map. Deviations of the location from the course of the roads on the road map ar...

PCT No. PCT/GB86/00244 Sec. 371 Date Dec. 11, 1986 Sec. 102(e) Date Dec. 11, 1986 PCT Filed May 7, 1986 PCT Pub. No. WO86/06837 PCT Pub. Date Nov. 20, 1986.Gas testing apparatus comprises a gas chamber wherein a test body surrounded by a single turn electrical conductor is suspended by a metal strip in a non-uniform and non-symmetrical magnetic field which is formulated by especially shaped pole p...

A method for measuring the hardness of a material by measuring the electrical contact resistance between a hard semi-conducting indenter and the material which avoids the necessity of knowing the electrical resistivity of the material. The reproducibility of the measurement of the electrical contact resistance being greatly enhanced by applying an electrical discharge across the contact between th...

Optical sensor for the detection of specific substances and refraction index alterations in gaseous, liquid, solid or porus materials to be tested- is designed with integrated optical elements. It consists of a wave conducting film (1) proivded with a diffraction screen (4) acting as a grid coupling or Bragg reflector applied on a substrate (2). In certain cases for the selective detection of spec...

PCT No. PCT/GB86/00286 Sec. 371 Date Feb. 9, 1987 Sec. 102(e) Date Feb. 9, 1987 PCT Filed May 21, 1986 PCT Pub. No. WO86/07150 PCT Pub. Date Dec. 4, 1986.The application relates to a method and apparatus for testing the concentration of a selected atomic scale species in a thick liquid, such as blood. The blood flows through a chamber that is in part defined by a microporous dialysis membrane perm...

An apparatus and method for forming an image based on the interactions of polarized electromagnetic radiation with the specimen being imaged. The image formed by the apparatus is the difference of two images of the specimen (18, 40, 86) each made with electromagnetic radiation having a different polarization. The choice of wave length and polarization will depend on the structure of compounds to b...

A method and apparatus for computing frequency of an unknown signal using the number of counts of a high and low frequency reference signal which occur between the leading and trailing edges of the pulse of unknown frequency. Method and apparatus is also described utilizing this technique for application in control processes where it is desired to optimize the process by allowing it run at a faste...

PCT No. PCT/US86/01197 Sec. 371 Date Jan. 29, 1987 Sec. 102(e) Date Jan. 29, 1987 PCT Filed May 30, 1986 PCT Pub. No. WO86/07218 PCT Pub. Date Dec. 4, 1986.Particle produced pulses are evaluated on an individual basis for shape symmetry, with significantly asymmetric pulses, becoming subject to editing, i.e. exclusion. Pulse symmetry is determined by measuring the areas under the pulse before and ...

A cross-correlation fire sensor circuit includes detectors responsive to heat and light radiation, respectively. Electrical signals from the detectors are processed in two distinct channels through low pass filters and samplers. The sampled signals from the two channels are multipled together and the products are summed over a selected interval to provide a correlation function. This function is c...