摘要:
A method and apparatus which can be used to connect two items together using a knob, key, handle or lever. The knob has a central boss from which extend at least two curved, in plan, arms. The curved shape of the arms is adapted in use to aid grip. or purchase during tightening or aid grip or purchase during releasing motion of the boss to thereby minimise the risk of overtightening.
摘要:
A navigation system is disclosed for providing navigational directions. It has a navigation device with a body provided with a receiving part. The receiving part has an inner surface provided with a connecting element of a first connection type. The navigation system further includes a docking system arranged to accommodate the navigation device. The docking system has an extending part provided with a connecting element of a second connection type. The connecting element of the second connection type is arranged for connection to the connecting element of the first connection type. The extending part further includes an outer surface with a shape similar to the inner surface of the receiving part of the navigation device. In at least one embodiment, the receiving part is slideable along a trajectory over the outer surface, the trajectory being determined by the shape of both the inner surface of the receiving part of the navigation device and the outer surface of the extending part of the docking system. Particularly, the trajectory is such that the connecting element of the first connection type is guided towards the connecting element of the second connection type for connection.
摘要:
Production processes and systems are provided that include reacting halogenated compounds, dehalogenating compounds, reacting alcohol's, reacting olefins and a saturated compounds, reacting reactants having at least two —CF3 groups with reactants having cyclic groups. RF-compositions such as RF-intermediates, RF-surfactants, RF-monomers, RF-monomer units, RF-metal complexes, RF-phosphate esters, RF-glycols, RF-urethanes, and/or RF-foam stabilizers. The RF portion can include at least two —CF3 groups, at least three —CF3 groups, and/or at least two —CF3 groups and at least two —CH2— groups. Detergents, emulsifiers, paints, adhesives, inks, wetting agents, foamers, and defoamers including the RF-surfactant composition are provided. Acrylics, resins, and polymers are provided that include a RF-monomer unit. Compositions are provided that include a substrate having a RF-composition thereover. Aqueous Film Forming Foam (“AFFF”) formulations are provided that can include RF-surfactants and/or RF-foam stabilizers are provided.
摘要翻译:制备方法和系统包括使卤代化合物,脱卤化合物,醇反应,烯烃与饱和化合物反应,使具有至少两个-CF 3 N 3基团的反应物与具有环状基团的反应物反应。 R F - 如R 1 - 中间体,R 1 F - 表面活性剂,R 1 F - 单体,R 单 - 单体单元,R 1 F - 金属络合物,R 1 F - 磷酸酯,R 1 - 二醇, R F - 氨基甲酸酯,和/或R F - 泡沫稳定剂。 R 1 F 3部分可以包括至少两个-CF 3 N 3基团,至少三个-CF 3 N 3基团和/或至少两个 - CF 3个基团和至少两个-CH 2 - 基团。 提供了洗涤剂,乳化剂,油漆,粘合剂,油墨,润湿剂,起泡剂和消泡剂,包括R 1 F - 表面活性剂组合物。 提供了包括R 1 F单体单元的丙烯酸树脂,树脂和聚合物。 提供了包含其上具有R 1 -F 3 - 组成的底物的组合物。 提供了可以包括R 1 F - 表面活性剂的水性成膜泡沫(“AFFF”)制剂和/或提供的R 3 F泡沫体稳定剂。
摘要:
The present invention is directed to a lubricating oil composition comprising a lubricating oil basestock, an organic silane containing additive of at least 0.1 and less than 2.0 weight percent of the composition, a dispersant-detergent-inhibitor system of less than 15 weight percent of the composition, an organic boron additive of at least 0.1 and less than 8.0 weight percent of the composition, a zinc dithiophosphate additive of at least 0.1 weight percent of the composition and less than 1.6 weight percent of the composition and the composition having at least 80 PPM and less than 1600 RPM silicon, at least 100 PPM and less than 630 PPM phosphorus, at least 105 PPM and less than 710 PPM zinc, at least 1,000 PPM and less than 4,000 PPM sulfur, at least 800 PPM, less than 10,000 PPM ash and less than 450 PPM boron. In a second embodiment, an additive composition for lubricating oils is disclosed. In a third embodiment, a method of obtain a favorable lubricating properties is disclosed.
摘要:
A drill/injector combination is provided to inject plants that are grown in containers such as blocks at lift with plant growth modulators. The drill/injector combination is comprised of a seedlings holder, a block restraint, a cavity tool apparatus, a metering apparatus, an injection apparatus and optionally, a bore closing apparatus. The combination may be manually operated or may be automated.
摘要:
A high pressure gas discharge lamp system includes a high pressure discharge lamp selected to have a lowest lamp resonant frequency above the audible, on a current basis above about 19 kHz and on a power basis of above about 38 kHz. The ballast circuit energizes the discharge device so as to have a fundamental frequency below the lowest lamp resonant frequency and above the audible, while keeping the magnitude of any harmonics above the lowest lamp resonant frequency sufficiently small so as to avoid acoustic resonance. By operating below the lowest lamp resonant frequency, greatly simplifying ballast construction and cost. According to one embodiment, the discharge vessel encloses a discharge space which is circular cylindrical and having a L:ID ratio of about 1:1 to maximize the lowest lamp resonant frequency. According to another embodiment, two or more discharge devices are operated concurrently by the ballast, each having a lowest lamp resonant frequency of above the audible, and the ballast operating frequency so as to increase light output while still avoiding acoustic resonance.
摘要:
A multi-phase lubricant composition useful in a process for lubricating one or more operating components which are exposed to an operating condition change is described. Under a condition at which the lubricants are at least partially miscible, the phases combine to provide a lubricant having a physical property which is modified to be more appropriate for lubricating under the new condition, such as a higher viscosity. Typically the lubricants are at least partially miscible at an elevated temperature and at least partially immiscible at lower temperatures. A density difference between the phases is preferred for ease of separating the phases. The composition is preferably a combination of a hydrocarbon oil and a polyalkylene glycol such as polypropylene glycol.
摘要:
A hydrocarbon oligomer and a process for its production is disclosed that is useful as a pour point depressant and as a combination pour point depressant and viscosity index improver for mineral oil or synthetic oil. The oligomer is also useful in modifying wax crystal formation at low temperature when added to distillate fuels. The oligomer is a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms. The oligomer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.
摘要:
A method and apparatus for measuring thickness and traction properties of elastohydrodynamic lubricant (EHL) films is described. The apparatus utilizes at least one ball or roller loaded against the internal diameter of a transparent ring having a larger radius than said ball or roller. A lubricant is placed between the rotating roller and ring thereby forming an EHL film where the ball and ring contact. Roller and ring rotating speeds are controlled to obtain different amounts of relative sliding motion between their surfaces. Contact between the surfaces and the resultant film are observed via the transparent ring which allows optical measurements of lubricating film thickness. Traction forces generated during contact are measured by any suitable force measuring device.