摘要:
A method for recording operating information of a railroad train (10) comprising a lead locomotive (14), a remote locomotive (12A), and a trailing locomotive (15). The method comprises recording the operating information of at least one of the railroad train (10) and/or a distributed power communications system onboard the railroad train (10), determining a location of the lead locomotive (14), and including the location in a record of the operating information.
摘要:
A pipe and fitting coupling system includes a first pipe, a second pipe, and a joint. A receiving end of the second pipe includes a first flange, a second flange, a groove, and a sealant. The second flange extends further than the first flange. The groove is disposed at the pipe diameter and between the first flange and the second flange. The first flange has an inwardly angled face to meet the groove and the second flange has an outwardly angled face to meet the groove. The sealant is disposed in the groove to seal the plain end of the first pipe in the receiving end. The joint is formed by the cooperative alignment of the plain end being inserted into the receiving end and being sealed by the sealant.
摘要:
A tube support bracket that comprises an aluminum-coated steel support bracket formed having a circular tube-receiving aperture and an annular, castellated collar abutting the aperture. The aperture and collar are sized for receiving therethrough in close-fitting relationship an aluminum alloy heat exchanger tube. The collar, formed by a draw-punching process, has a plurality of spaced-apart, axial tabs sized for swaging against in hoop stress and bite the received tube. An inner surface of each of the collar tabs being has at least one axial groove therein, the groove being configured for receiving exterior regions of the received tube when the collar is swaged tightly against the tube to thereby lock the tube in the collar and thus in the support bracket. A corresponding method for making a tube support is disclosed.
摘要:
Material for the treatment a distressed tree, and a treatment kit used in the treatment is accomplished by creating a mixture comprising a fertilizer and a growth hormone selected from a group of elements including naphthalene acetic acid, 3-indolebutyric acid, and derivatives thereof. The mixture of fertilizer and growth hormone are applied to a root area of the distressed tree. A kit for treating distressed trees may include a device for producing holes around the periphery of the tree, and introducing hormone, an amount of fertilizer, and water as necessary. Instructions are included in the kit as to the amount of hormone and fertilizer to be mixed and applied to the root structure of the tree, and the watering thereof.
摘要:
Apparatus and methods for applying flexible straps around objects include a feed and tension unit a feed drive wheel and a feed pinch wheel, a primary tension drive wheel and a primary tension pinch wheel, and a secondary tension drive wheel and a secondary tension pinch wheel, wherein at least one of the pinch wheels is controllably biased against the respective drive wheel by a solenoid that is controlled in two stages: a first stage that provides a full feed or tensioning force and a second stage that provides a reduced feed or tensioning force by altering the pulse width modulation of the solenoid. In another embodiment, the three sets of wheels of the feed and tension unit are configured to provide a simplified “V-shaped” strap path that reduces bending of the strap, thereby reducing friction and consequent feeding difficulties. In another embodiment, the feed and tension unit includes inner and outer guides that form a strap channel through the feed and tension unit to provide easy access to the strap path for clearing the strap path in the event of a jam. In another embodiment, a track assembly includes a plurality of sections providing modularity of construction. Each section includes a backplate attached to at least one support member, and a slotted cover pivotably attached to the at least one support member proximate the backplate and moveable between an open position spaced apart from the backplate and a closed position proximate the backplate. In another embodiment, a cutting assembly for severing strap material includes a press platen and a cutter having a first cutting blade along a first edge thereof and a second cutting blade along a second edge thereof, the cutter being removably and variably engaged to the press platen.
摘要:
A bright metallized laminate is disclosed that includes a polyvinylidene difluoride-acrylic film having microscopically smooth surfaces, a discontinuous layer of indium islands deposited on the polyvinylidene difluoride-acrylic film, an adhesive layer bonded to the surface of the discontinuous indium layer opposite the polyvinylidene difluoride-acrylic film, and a thermoplastic backing layer bonded to the adhesive layer opposite the discontinuous layer of indium islands. An associated method is disclosed for forming the bright metallized laminate that includes the steps of casting a polyvinylidene difluoride-acrylic film to a polymeric substrate, depositing a discontinuous layer of indium islands upon the polyvinylidene difluoride-acrylic film, placing a polymeric film onto the discontinuous layer of indium islands, and press polishing the polyvinylidene difluoride-acrylic film and the discontinuous indium layer. The polyvinylidene difluoride-acrylic film demonstrates a roughness average (RA) of about 0.75 micron or less, and a distinctness of image (DOI) of about 95 or more.
摘要:
A peripheral device containing a control circuit with internal timing which enables it to independently adjust the timing of an interrupt acknowledge cycle. The circuit senses a timing signal from the CPU and asserts a control signal to suspend the operation of the CPU for a predetermined period of time. The predetermined period of time is customized to the peripheral so that when the CPU is re-activated and reads from the bus, a valid interrupt vector will have been put out by the peripheral.
摘要:
A cementing tool for use in a well has a housing and a closing sleeve received thereabout. An operating sleeve is received in the housing and is interconnected with the closing sleeve so that movement in the operating sleeve will cause the closing sleeve to move. The closing sleeve is detachably connected to the housing and is movable from the first or open position to a second or closed position in which it covers cementing ports defined in the housing. The tool has a plurality of lock rings that are moved with the closing sleeve. A plurality of locking grooves are adapted to receive the lock rings such that the engagement of any of the lock rings with any of the locking grooves will prevent the closing sleeve from moving out of the closed position.
摘要:
A network of buoyant particles for clearing lysates of biological material, the network including two or more buoyant particles covalently linked together, wherein the network ranges in size from approximately 30 microns to approximately one centimeter along the network's longest dimension. The buoyant particles may have a silica surface. The network may have a density less than about 1.2 g/cm3. Methods of making the network of buoyant particles and methods of isolating target biological material using buoyant particles or a network of buoyant particles are also described.
摘要翻译:用于清除生物材料的裂解物的浮力颗粒网络,网络包括共价连接在一起的两个或更多个浮力颗粒,其中网络的尺寸沿着网络的最长尺寸在大约30微米到大约一厘米的范围内。 漂浮的颗粒可以具有二氧化硅表面。 网络可以具有小于约1.2g / cm 3的密度。 还描述了制造浮力颗粒网络的方法和使用浮力颗粒或浮力颗粒网络分离目标生物材料的方法。
摘要:
An apparatus and method for fabricating an externally finned tubular heat exchanger assembly comprising two concentric thin walled tubular members defining therebetween an intermediate inner annular fluid flow channel, and positionally fixed therewithin an internal turbulizer strip extending longitudinally in a helical spiral. The tubulizer strip is embossed with corrugations prior to installation into the intermediate inner annular fluid flow channel. The corrugated strip is helically spiraled with sequential bridge gap spaces between adjacent serial turns wherein the corrugations form a series of triangular cross-sectional fluid flow passageways. Turbulizer corrugation expansion, after insertion into the inner intermediate annular fluid flow channel, mechanically anchors the corrugated turbulizer strip to the second inner concentric tubular member that has an end groove to provide engagement connection. The turbulizer is utilized to vary conductance and thus control fluid flow through the tubular inner channel of the second concentric tubular member. External fins are attached to the exterior circumferential surface of the first outer concentric tubular subassembly member to further enhance heat exchange.