摘要:
A fly and insect trap for attachment to a depending light bulb has an enclosure of translucent material for installation around the light bulb, the enclosure having an upwardly open top defining an opening for receiving the bulb into the interior of the enclosure with the top spaced outwardly from the bulb to form therebetween an inlet gap for the entry of flies and insects into the interior of the enclosure. A retainer is secured to the enclosure within the enclosure and beneath the opening and resiliently engageable with the bulb for suspending the trap from the bulb.
摘要:
Hardenable foam compositions comprising oxygen-releasing foaming agents, a hardener consisting of an alkali silicate solution, a fine particle solid material which reacts with said hardener, namely an oxide mixture consisting of SiO.sub.2 and Al.sub.2 O.sub.3 extracted from a filter dust, an electrofilter ash from high-temperature power plants, and calcinated bauxite or amorphous silica, to which reaction accelerators are added, are improved, firmer, faster hardening foams. Reducing agents, in particular sulphur compounds with a reducing action are preferred. Oxidizing agents or fine particle substances such as soot or color pigments are effective.
摘要翻译:包含脱氧发泡剂的硬化泡沫组合物,由碱金属硅酸盐溶液组成的固化剂,与所述固化剂反应的细颗粒固体材料,即由过滤灰尘提取的由SiO 2和Al 2 O 3组成的氧化物混合物,来自高温的电过滤灰 温度发电厂和加入反应促进剂的煅烧铝土矿或无定形二氧化硅得到改进,更坚固,更快的硬化泡沫。 还原剂,特别是具有还原作用的硫化合物是优选的。 氧化剂或微粒物质如烟灰或彩色颜料是有效的。
摘要:
The present invention is directed to a process for strengthening geological formations in underground mining or other operations introducing into the formation which is to be strengthened mixtures of a polyisocyanate component (a) and a polyol component (b) which react together to form polyurethanes, characterized in that the polyol component (b) is based on mixtures of (i) organic polyhydroxyl compounds having hydroxyl numbers of about 100 to 600 and (ii) dihydric alcohols having a molecular weight of 62 to about 150, component (ii) being present in an amount of about 0.01 to 20% by weight, based on the total quantity of component (b).
摘要:
The present invention relates to a two-compartment cartridge which is suitable for securing stay bars in bore holes by means of polyurethane resins and which is destructible by the stay bar, containing a polyisocyanate component on the one hand and a polyol component on the other hand, distinguished by the fact that the polyisocyanate component used is an aromatic polyisocyanate or a mixture of aromatic polyisocyanates, while the polyol component used is a polyol containing tertiary amine nitrogen and having a molecular weight of from about 119 to 3000 or a polyol mixture containing at least one such polyol. The present invention also relates to a process for securing stay bars in bore holes by introducing into the bore hole a two-compartment cartridge which contains components capable of forming a synthetic resin and which is destructible by driving in the stay bar and subsequently driving in the stay bar, distinguished by the fact that a cartridge of the type described above is used as the two-compartment cartridge.
摘要:
A point rail is shiftable transversely on an upper face of a rail base plate between an engaged position bearing on a longitudinally extending and fixed stock rail and a disengaged position spaced transversely of the stock rail. A roller assembly has a mounting plate securable to the rail base plate, a roller support pivotal about a support axis on the rail base plate, a roller carried on the roller support, and a spring biasing the roller upward with a predetermined spring force into a lift position with the roller projecting upward past the upper face for supporting the point rail on the roller. Thus this assembly supports the point rail and, in the engaged position, presses it against the support cleats and the stock rail and it is an integral part of one of the rail base plates.
摘要:
The invention relates to novel copolymers comprising indenofluorene units and units of thiophene or its derivatives, to organic semiconductor (OSC) materials and organic electroluminescent materials comprising the copolymers, to the use of the copolymers and materials in electronic, electroluminescent or electrooptical devices, and to devices comprising the copolymers or materials.
摘要:
The invention relates to a device for shifting switch rails (6) associated adjustably with stock rails (7) or mobile frog tongues in railroad switches, configured as a latch or vertical clasp closure, comprising locking catches (4) which are activated by means of a cam or slide rod (5a, 5b), and closure pieces (3) and tongue attachments (2), wherein each locking catch (4) is pivotably supported in a tongue attachment (2) and the switch rail (6) is connected detachably to the tongue attachment (2). An improved and simpler adjustment option is to be created for such a device. For this, the cam or slide rod (5a, 5b) is vertically height-adjustable via a multi-edge body (9) mounted detachably in both closure pieces (3).
摘要:
A wire cloth includes warp wires and weft wires which cross each other and are interwoven by a weave pattern. The warp wires are formed in at least two different configurations to define warp wires of first and second types. A length of the first type of warp wires deviates from a length of the second type of warp wires in relation to a particular length unit, with pores being formed in interstices between sections of two neighboring warp wires and crossing sections of two neighboring weft wires.
摘要:
The present invention relates to conjugated polymers which comprise both structural units of the formula (1) and also structural units of the formula (2). The materials according to the invention are more readily soluble, display improved air stability and display a smaller voltage increase during prolonged operation when used in a polymeric organic light-emitting diode (PLED) than polymers according to the prior art.
摘要:
The invention relates to a rail fastener for track systems, comprising a tensioning element (1) made of an elastic material, in particular hardened spring steel that in the assembled state is fixed in place between a retaining plate (3) provided on a sleeper (2) and a fastening anchor (4) such that the tensioning element exerts a retention force on the foot (5) of a rail (6) in order to hold the rail (6) in position, the tensioning element (1) being symmetrically aligned with respect to a vertically oriented plane of symmetry (7) that is perpendicular to the longitudinal axis (8) of the rail (6). According to the invention, the tensioning element (1) has two torsion legs (1a′ and 1a″), preferably extending essentially in parallel, in order to achieve stepped overload protection. The two torsion legs (1a′ and 1a″) are connected to one another on the side facing away from the rail (6) by means of a connecting section (1b), and a loop-shaped clamping section (1d′ and 1d″) is provided on each end (1c′ and 1c″) of the torsion leg (1a′ and 1a″) facing the rail (6). In the non-tensioned state of the tensioning element (1) the torsion legs (1a′ and 1a″) together with the connecting section (1b) lie essentially in a first plane (9), and at least a portion of the loop-shaped clamping sections (1d′ and 1d″) lie in a second plane (10). The second plane (10) is rotated about an axis (11) in relation to the first plane (9), the axis extending parallel to the sectional axis of the plane of symmetry (7) containing the first plane (9).