摘要:
A stormwater runoff detention system includes a system including an inlet, a first surge chamber, a second surge chamber and one or more storage chambers. The first surge chamber is connected to receive stormwater from the inlet prior to the second surge chamber or the storage chamber. The first surge chamber includes a discharge outlet and an overflow outlet to the storage chamber. The second surge chamber is connected to receive stormwater from the inlet primarily after the first surge chamber has begun overflowing to the storage chamber. The second surge chamber includes a discharge outlet and an overflow outlet to the storage chamber or to a second storage chamber.
摘要:
A portable practicing putting device having a plurality of elongated panels that are connected together by hinges to form an elongated structure. A sheet of grass-like material is bonded to the top surface of the panels and it has a putting hole portion having a golf ball receptacle in it. An elongated strip portion extends to the front end of the elongated structure. A putting stroke zone is formed adjacent the front end of the elongated structure and it has a plurality of lines of golf tee apertures extending parallel to the putting stroke zone. The golf tees are placed into the particular lines of apertures that would have a spaced width apart closest to that of the diameter of the putter head. When not in use, the practice putting device can be folded up into a compact closed state.
摘要:
A one-piece non-metallic nut ring for surrounding and supporting an electrical connector attached to a bulkhead or other flat panel. The nut ring includes a planar backplate and threaded nuts extending outwardly therefrom. The backplate and nuts are coextensively and continuously connected to one another by compression molding a matrix of resin impregnated, non-metallic fibers. The non-metallic fibers are preferably short chopped fibers that are randomly dispersed within the matrix in directions extending generally parallel to the plane of the backplate. The nut ring of this invention is characterized as being of relatively light weight, corrosion resistant, non-conductive and able to withstand detection by radar.
摘要:
A bushing roller bearing having particular application for use in a wing flap assembly of an aircraft by which a wing flap is raised or lowered. The bearing includes metallic, coaxially aligned outer and inner races and a non-metallic intermediate liner disposed therebetween. The inner race is coupled to and rotatable with a shaft that is interconnected with the wing flap. The outer race is adapted to rotate (i.e. ride) along a wing flap track at the wing of an aircraft. The intermediate liner is formed from a self-lubricating composite material which reduces wear and friction between the outer and inner races. The intermediate liner floats through the bearing, such that a clearance exists between the liner and the races to permit the liner to be displaced laterally and radially. By virtue of the intermediate liner, the susceptibility of the bearing excessive wear, to lock-up and possible failure is reduced.
摘要:
A vortex flow regulator used in sewer catch basins to prevent overflow of the system from storm water runoff and to standardize the production of regulators. The hollow body of these flow regulators within a given range of regulators by the present construction have been found suitable for different size discharge orifice requirements. A flow regulator has been provided that is adapted to standardization of parts when built with only its discharge orifice needing change. The structure lends itself to mass production of flow regulators. Simple means for attachment of flow regulators within basin drain pipes has been provided.
摘要:
A method for somatic embryogenesis of soybean, (Glycine max), Glycine soja and other Glycine species is provided using immature cotyledon tissue, preferably with the embryonic axis removed, comprising culturing said tissue on a medium containing auxin, preferably NAA at a concentration of at least about 15 mg/l. A further method for such somatic embryogenesis is provided wherein the culture medium contains a synergistically acting lowered carbohydrate and auxin concentration. Particularly embryogenic cells of such tissue are identified and improved maceration methods for contacting such cells with regeneration and transformation media are disclosed.Methods for transforming somatic tissue from soybean and other Glycine species are also provided.Whole, fertile, transformed plants are obtained.
摘要:
A fastener member and method of formation are provided wherein a bolt and nut are formed from a block of resin-impregnated fibers woven in a first, second and third plane each perpendicular to the other wherein the fibers in the first plane extend continuously and longitudinally through the fastener member and the fibers in the second and third plane extend to form the peaks and valleys of the helical thread.