Abstract: A flexible polyurethane foam cylindrically shaped sanding device (1) manufactured from formulas of abrasive material, can be permanently surfaced with an abrasive material or layer and can be used in conjunction witch abrasive sheets.The tube sheet (4) can be manufactured from wet or dry type abrasive sheets, perforated to allow for water penetration for wet sanding. The tube sheet is assembled into tube form by connection of the opposite edges of same abrasive sheet by fastening same sheet edge to edge by the adhesive tape (31) on back side of sheet,The sanding device is mountable to a pole by the mounting rod (81 ) which is run through mounting apparatus fork, through the sanding device center sleeve (21 ) and into the opposite threaded hole or inserted nut (82) or disc nut (89).The mounting apparatus (84) is fastened to external pole (86) by screwing same pole into fitting on mounting apparatus.

Abstract: The invention describes plastic automobile windows that are safe during side impact collisions, including a method for installing the windows into the motor vehicle. The mounting system and window material will contain an occupant in a vehicle at low to moderate head impact velocities. The occupant is not subjected to head injuries. The occupant is not subject to lacerations.The window design uses a high modulus transparent thermoplastic, having an abrasion resistant coating. The window is attached to the window opening in a motor vehicle by using one of several mounting techniques as described herein. For fixed windows, the mounting systems will bond the window to the vehicle under normal operating conditions and provide a weather seal. For a movable window, the window frame will be equipped with a sliding track and provide a weather seal. A groove or notch in the window material inward from the edge in combination with the mounting systems enhance a safe release of the plastic window.

Abstract: Steel framing is provided for a building construction having a roof structure [80] and perimeter supporting posts [89] of roll formed steel sections. The connections between the perimeter posts [89] and the roof structure [80] are formed by separate connector assemblies [60] each having post mounting brackets [63] enabling each connector [60] to be bolted to the top of a respective the perimeter post [89], roof frame mounting brackets [61] enabling each connector to be bolted to a respective inclined roof frame member [92] extending inwardly from the respective perimeter posts [89], and perimeter beam mounting brackets [64] enabling adjacent perimeter posts [89] to be interconnected by perimeter beams [91] bolted to the perimeter beam mounting brackets [60].

Abstract: A skylight guard assembly comprising a galvanized sheet metal rail having first and second side members and a cross brace member connected to the top surface of a corrugated plastic panel rib, a metal screen fixedly attached to the top of the rail to prevent the danger of injury from stepping or falling through a corrugated plastic panel skylight in a corrugated metal roof, means for connecting the metal screen to the rail, and means for attaching said rail to an adjacent corrugated metal panel, wherein the rail holds the metal screen a spaced distance above the corrugated plastic panel to avoid buildup of water and trash.

Abstract: A locking screw feature provides lockable adjustability for the slab-supporting ledge member which supports the heavy slabs used to form the face-wall of mausoleum crypts. The lockability permits the ledge member to be made to be freely slidable in its receiver slot of the hanger body which is connected to the structural concrete of the building; and the ledge-lockability is achieved by a locking screw which passes inwardly through the ledge member, and is forced against the hanger member, thus permitting the fit of the ledge member to the hanger member to be freely slidable. This combination of features not only accommodates the adjustability to be easy and precisely accurate, but also tightly locks the adjusted position. Preferably, the ledge member passage for the locking screw is provided as a inward extension of the ledge member hole which holds the screw which holds the rosette cap which conceals the junction of the slabs.

Abstract: A retaining wall includes a fore-structure including a material supporting member, at least one abutment on the material supporting member, and at least one solid body anchor member. A bulk material filling is disposed rearward of the fore-structure and has a portion acting with a forwardly-directed force on the fore-structure. A flexible sheet material member interconnects the fore-structure and the bulk material filling for resisting forward movement of the fore-structure under the influence of the forwardly-directed force. The solid body anchor member is disposed forward of an abutment surface on the abutment, and the abutment surface blocks rearward movement of the solid body anchor member relative to the material supporting member. The sheet material member has a loop section extending at least partially around the solid body anchor member. At least a portion of the loop section extends between the solid body anchor member and the abutment surface.

Abstract: A versatile aluminum alloy molding block structure for used as a ceiling tile, a floor covering or a wall covering, particularly a molding block with patterns and designs on the surface to be used as a building material. The aluminum alloy molding block consists of a basic block and surface boards covering the surface of said basic block. The basic block has a plurality of partitions having the shape of bee nests contained therein, each of the partitions can be packed with fire proofing material, heat insulator or acoustical, soundproofing material. It is scientific and economical to use the aluminum alloy molding blocks as a versatile building material.

Abstract: A rotary capping machine (10) includes a nonrotating center shaft (26) about which a turret (28) is rotatably mounted. The turret (28) is rotated by a motor (30) whose speed can be adjusted to alter the bottle through put rate of the capping machine (10). A plurality of spindle shafts (44) are supported on the turret (28) in a circle about the center shaft (26). A rotary capping head (48) is positioned on the end of each spindle shaft (44) and includes a clutch mechanism. A drive motor (68) supported on the center shaft (26) rotates each of the spindle shafts (44) in unison through a compound and planetary gear train. As the spindle shafts (44) revolve about the center shaft (26), they are linearly reciprocated by a barrel cam (50) arrangement. A rotary encoder (78) senses the instantaneous rotational speed of the turret (28) and sends feed back signals to a CPU to control the drive motor (68) so the spindle shafts (44) always rotate at a field determined constant speed regardless of the turret speed.

Abstract: An apparatus for removing a bag in the form of a flexible film having an opening from about object on a planer surface includes first and second parallel cylindrical rollers movable between a first spaced-apart position and second mutually-contacting position, an apparatus for selectively moving the rollers between a first location pressing against the object and the second location a selected distance from the object, an apparatus for selectively positioning the rollers in the first and second positions, and an apparatus for rotating the rollers. Control apparatus may be provided to cause the rollers to be pressed against the object through the film while in the spaced-apart position, to move together to grip a fold of the bag between the rollers, to cause the rollers to rotate to draw the gripped fold of the film between the rollers, and to cause the rollers to be moved to a location a selected distance from the object.

Abstract: A package, packaging method, and packaging apparatus for facilitating the packaging of large meat products and exchanging the ambient atmosphere to establish a desired gaseous atmosphere that extends the shelf life of the product. The package includes a pair of preformed relatively rigid plastic domed or cupped members which abut along a sealing surface. The upper and lower package portions include flanges which are adapted to facilitate not only the formation of the package but its subsequent opening. A reciprocatable filling tube maintains the separation between the upper and lower package portions to permit gas exchange and then may be reciprocated downwardly to allow the upper package portion to abut atop the lower package portion for sealing connection.

Abstract: A method and apparatus for modified atmosphere packaging uses a rotary conveyor to transport a plurality of trays to be packaged between a plurality of stations in a circular arrangement. The trays may be loaded onto a receiving platform by depositing them over movable beds which can reciprocate downwardly in order to permit the trays to be removably held inside slots in a removable platform. Since the platform is removable from the conveyor, it may be centered in any particular station by lifting the platform from the conveyor and guiding it into a precise alignment at a particular station. The package may then be filled, its atmosphere replaced with one lower in oxygen content, and then the desired atmosphere sealed within the package. This can be done in the continuous fashion so that the film is severed from a continuous web.

Abstract: Tubular packs, which contain a wound scale formation of flat products, particularly printed products, are conveyed over predeterminable conveying paths from at least one pack-producing apparatus (W.multidot.1, W.multidot.2) to at least one forwarding or intermediate storage station (A). For this purpose the packs are conveyed away from the pack-producing apparatus (W.multidot.1, W.multidot.2) with axes oriented in the conveying direction in a longitudinal conveying direction (FP.sub.1). Then in a distributing station (VU) or a deflecting station (U) for distributing the packs to different despatch units and/or for combining the packs into identical despatch units the conveying direction of at least part of the packs, for a constant axial position, is modified by substantially 90.degree. into a transverse conveying direction (FP.sub.q). Combined packs can be compressed in a combining station (ZU) and bound together to form double or multiple packs (PP) using a wrapping means.

Abstract: An intermittently operated, indexing container conveying system is particularly configured for versatile use with an associated container filling apparatus. In distinction from previous arrangements, the present system includes a servo-drive motor for effecting intermittent indexing movement of a container-carrying endless conveyor. Programmable controls of the system facilitate operation of the system for optimizing efficiency, facilitating use of the system with containers of differing configurations, and with food products exhibiting varying physical properties (i.e., such as viscosities). The present system permits acceleration and deceleration rate of the conveyor to be selectively varied, as well as selective variation of indexing pitch and stop points of the conveyor.

Abstract: An apparatus (10) is disclosed including an abutment (282) in the form of an elongated rod positioned in front of the sealing intermittent position which rearwardly deflects the portions of bags (12) extending out of fixtures (32) moving in an operation direction. The bags (12) then slap forwardly against a stop (284) as the fixtures (32) reach the sealing intermittent position, with the stop (284) being in the form of a plate carried by the sealing jaw (146) of the sealing position. Arms (136) are pivoted between a transport position spaced from the fixtures (32) and a compression position to engage a rod (138) with the bags (12) above an expansion prevention bar (49) of the fixtures 32 to deflect the product located in the bags (12) into a more planar condition.

Abstract: A gas exchange manifold includes a pair of plates which may be threadedly connected to one another. Gas supplying passages are formed through the plates to supply a desired gas to the package during fabrication. Also, vacuum supplying passages extend through the same plates and communicate with the package as well. A third plate, which may be sandwiched between other two plates, may contain a plurality of apertures which form part of the gas supplying passages. In this way, the third plate, which may be smaller, may be replaced to provide the desired pattern of apertures for a given configuration of packages being formed.

Abstract: A crop bagging machine is provided with a movable chassis having adjustable brakes and a grain container having a rear tunnel defining a rear opening. A pliable plastic bag is fit to the tunnel with the bag bottom closing the opening. A bin on the chassis receives grain, e.g., from a truck and an auger transports the grain from the bin to an elevated position in the container that is above the height of the filled bag. The adjustable brakes are set to establish the level of grain pile in the container to cover the opening and thereby fill the bag. The brakes are independently controlled to provide limited steering. An additional embodiment of the invention shows downsizing for reduction in cost and in dimension for compatibility with conventional shipping containers while further providing adjustability in tunnel size to accommodate variation in bag diameter. A further additional embodiment provides for a modified conveyor system for the grain that utilizes air flow.

Abstract: A pack frame for a pack animal such as a mule includes a pair of base frames, each including an upright frame member extending between top and bottom ends. Straps are provided at top ends of the upright frame members to connect the base frames to a conventional pack saddle on the pack animal. Arched surfaces, provided on each upright frame member, extend between the top and bottom ends of the upright frame members. The surfaces are shaped to conform to the pack animal's rib cage. A support arm frame is mounted to each of the base frames by integral hinges. The hinges are oriented upwardly of stop surfaces that are also integral with the upright frame members and the support arm frame.

Abstract: A supporting frame for a mower attachment of the rotary or flail type to provide for quick attachment of the mower to and detachment of the mower from a road grader or similar prime mover. The mower is designed for mowing roadside ditches, and the supporting frame mounts the mower so it can float and still be easily raised and lowered by the operator when necessary for transport.

Abstract: A guidance system is provided for a cotton picker. The cotton pickers commercially on the market have lifting plates on each of the gathering heads to lift the lower limbs of the cotton plant. To make the wands of the detection of the position of the row operate satisfactorily the limbs are bunched together by bunching plates above the lifting plates. The effective width of the bunching plates is adjustable by an adjustment plate on top of the bunching plate. The wands are straps of metal made from plate rather than rods, as generally used for crop detection purposes. The wands are mounted for pivoting about a shaft which extends from the bunching plate to the lifting plate.

Abstract: The invention concerns a fodder-processing roller. The roller according to the invention is noteworthy by virtue of the fact that each projection 17a, 17b, 17c, 17d; 18a, 18b, 18c, 18d; 19a, 19b, 19c, 19d; 20a, 20b, 20c, 20d belonging to a group of projections is joined by one of its edges to a corresponding edge of an adjacent projection belonging to the same group of projections by means of a branching element 17'a, 17'b, 17'c, 17'd; 18'a, 18'b, 18'c, 18'd; 19'a, 19'b, 19'c, 19'd; 20'a, 20'b, 20'c, 20'd having a reduced cross-section, so that all of the projections 17a, 17b, 17c, 17d; 18a, 18b, 18c, 18d; 19a, 19b, 19c, 19d; 20a, 20b, 20c, 20d and branching elements 17'a, 17'b, 17'c, 17'd; 18'a, 18'b, 18'c, 18'd; 19'a, 19'b, 19'c, 19'd; 20'a, 20'b, 20'c, 20'd belonging to the same group of projections form a rib 17, 18, 19, 20 which is arranged continuously along the roller. The invention also concerns a fodder-processing device and a mowing-processing machine using these fodder-processing rollers.

Abstract: Crop stripping apparatus is provided comprising a toothed crop-stripping drum and an auger for collecting crop stripped by the drum. Between the drum and the auger is a roller rotatable in the same direction as the drum. The spacing between the drum and the auger is greater than the expected length of deteched plant stalks but is otherwise kept as small as possible for compactness. The roller serves to draw the plant stalks from the drum and urge them into the zone of action of the auger.

Abstract: A round baler, having a pair of spaced side walls mounted on a main frame, is supported on wheels and adapted to be pulled across a field. A crop confining apron is mounted between the side walls for defining an expandable chamber that is adapted to rotatably form a cylindrical package of crop material between the side walls. A pickup picks up crop material and conveys it into the chamber through a generally transverse crop infeed opening operatively associated with the pickup. A transverse starter roll extends between the side walls to provide the upper limit of the infeed opening. A crop severing device extends into the expandable chamber in the vicinity of the starter roll to cut crop material on the surface of the cylindrical package as it is being formed.

Abstract: A tire cord made of a multifilament yarn of polyvinyl alcohol having a degree of polymerization of at least 1500, the yarn having a tensile strength of at least 10 g/d and an index of hot water resistance of at least 50.

Abstract: A method, in a spinning machine comprising a spindle portion and a nozzle portion having a first nozzle for exerting a turning air current on a fiber bundle moved out of a drafting device, comprises introducing a yarn end on the package side from the spindle portion into a second nozzle to place it in an open state, turning the yarn end around the spindle by jetting a low pressure air from the first nozzle, and supplying the drafted fiber from the nozzle portion to effect a piecing. A piecing apparatus in the spinning machine comprises device for sucking a spinning yarn wound into a package, device for reversing the package, device for guiding and cutting the sucked spinning yarn, device for transferring a spinning yarn to an outlet side of a spinning yarn of a spindle member separated from a nozzle member of a spinning section, and movable device for threading and opening on a sliver inlet side of the spindle member of the spinning yarn.

Abstract: In a rotor spinning machine, each spinning station's drawing-in roller is connected directly to its own individual drive supported by the cover of the spinning station housing, which provides a simplified and conveniently accessible alternative to the conventional worm gear driving of the drawing-in rollers of the machine's plural spinning stations from a common drive shaft.

Abstract: A double ender powerplant including a first engine having a compressor for producing a downstream axial flow, a combustor, a turbine coupled to the compressor through a shaft, and means for attaching a load coupled to the shaft adjacent and downstream from the turbine; a second engine having a compressor for producing a downstream axial flow, a combustor, a turbine coupled to the compressor through a shaft, and means for attaching a load coupled to the shaft adjacent and upstream from the compressor; and, a generator coupled to each of the attachment means of the first and second engines.

Abstract: The present invention pertains to a thermoelastic connection of a hot gas-carrying injector tube (8) to the flame tube (1) suspended in the combustion chamber housing (10) of a gas turbine. The injector tube (8) is connected by corrugated spacers (7) to a circumferential intermediate ring (6), which is attached to the lower flange of the flame tube (1) by detachable fastening elements (3, 4, 5). A circumferential cooling channel (annular space 15), into which cooling air is admitted, is formed between the cone of the injector tube (8) and the intermediate ring (6). The compressor air enters the combustion space (1, 8) of the combustion chamber (10) through the annular space (15) from below, as well as through the holes (11), especially through the circumferential gap (12).

Abstract: An assembly of a bulkhead 48 and fuel nozzle guide 62 for a fuel nozzle 46 disposed in a combustion chamber 24 is disclosed. Various construction details which provide for positively cooling components of the assembly are developed. In one detailed embodiment, the nozzle fuel guide is spaced from the bulkhead to form an annular gap G.sub.1 which is divided by a heat shield 72 into annular orifices 108, 112 for supplying to cooling air passages 126, 128 bounded by the heat shield 72.

Abstract: A method for using a miniscale ballistic test motor for determining burn es over an operating pressure range allows the testing of a small propellant sample. The small propellant sample allows performance of an abbreviated procedure for each test of the propellant sample involving loading of a small scale test motor with the sample, conditioning the test motor and sample therein, firing the propellant sample and recording data.

Abstract: An integral turbo jet/ram jet propulsion system has co-axial forward and rear portions and includes a converging supersonic compression chamber and an inlet in the forward portion for directing air into the supersonic compression chamber. A diverging subsonic compression chamber is disposed rearwardly of the supersonic compression chamber. An inlet sonic throat connects the supersonic compression chamber and the subsonic compression chamber and directs a flow of air from the supersonic compression chamber through the throat and into the subsonic compression chamber. A high by-pass turbo jet engine is disposed adjacent to the subsonic compression chamber for heating and expanding the air which passes into the engine. A subsonic expansion exhaust chamber and supersonic expansion exhaust chamber are disposed rearwardly of the engine with an exhaust sonic throat between the two.

Abstract: A motor for impelling a missile or projectile has a housing and a plurality of spaced walls defining progressive compartments in the housing. A nozzle in one of the compartments produces a thrust for the missile or projectile when pressurized gases flow through it. Igniters extending into the individual compartments ignite propellants in such compartments. The igniter in an individual one of the compartments is energized initially and the igniters progressively displaced from such individual compartment are thereafter energized sequentially. Each wall separating an individual pair of adjacent compartments has a normally closed valve. Each valve has a first orifice of relatively great area in the compartment closer to the nozzle and a second orifice of limited area in the compartment further from the nozzle. A membrane between the orifices prevents the valve from being opened by a pressure from the closer compartment until this pressure becomes relatively great (e.g. 6500 psi).

Abstract: A slab motor for testing propellant samples (also referred to as a ballistic evaluation motor) having increased insulation and high pressure capability up to 10,000 psi is provided. The slab motor has a steel tube body with steel end caps, the whole assembly being insulated with liners. A test head device is attached to the forward end of the slab motor providing a mount for measuring thrust, two ports for attachment of pressure transducers, a rupture diaphragm to preclude explosive pressure build-ups, and an open port for attachment to the slab motor. A removable nozzle assembly allows easy replacement of the exhaust nozzle attached to the aft end of the slab motor.

Abstract: The present invention relates to a device for purging combustion residues from a thruster that comprises firstly a combustion chamber designed to receive a solid propellent and secondly a nozzle for evacuating propulsion gases and connected to the bottom of said chamber while leaving an annular space in which liquid residues of propellent combustion can accumulate. The device comprises at least one tube fixed on the converging part of the nozzle by fixing means, said tube including a first end dipped in the mass of liquid formed by said combustion residues and at a determined distance j from the bottom of the chamber, and a second end emerging level with the top end of the converging part and set back a little from the throat of the nozzle.

Abstract: A method of improving the performance of a pollutant abatement means, e.g., catalytic converter (16), used to purify engine exhaust gas streams and the like includes combusting a combustion mixture of air and a low ignition temperature fuel in the exhaust gas stream upstream of the catalytic converter (16) to oxidize carbon monoxide and unburned hydrocarbons, and/or to rapidly heat the catalytic converter to its operating temperature. Reaction conditions are maintained so as to cause the combustion mixture to ignite spontaneously. A control system may be used to regulate the supply of the combustion mixture in response to time lapse or temperature of the catalyst or both. The apparatus includes a fuel supply (18) and a fuel line (20) controlled by a valve (22) to deliver a low ignition temperature fuel into the exhaust gas discharge line (14) associated with the engine (12). An air pump (26) provides combustion air through an air line (28) into the exhaust gas discharge line (14).

Abstract: An electronic engine controller monitors the operability of a catalytic converter upon ignition of the engine by sensing the temperature of the exhaust gas entering the converter and of the exhaust gas exiting the converter for a period of time after the engine has been started. The electronic engine controller calculates the rate of heat transfer from the exhaust gas to the catalyst material within the converter. This value is then used to calculate the temperature of the catalyst material. Subsequent rates of heat transfer and subsequent temperatures of the catalyst material are calculated and the rate of change of temperature of the catalyst material is determined for each time step. A ratio is formed from the rate of heat transfer and the rate of change of temperature of the catalyst material. The electronic engine controller determines the ratio of the rate of heat transfer and the rate of change of temperature of the catalyst material for the period of time from engine ignition to catalyst light-off.

Abstract: An emission control device and method are provided for treating exhaust gases to reduce pollutants contained therein. The device includes a treatment chamber through which the exhaust gases pass. First and second metal screens are disposed within the chamber a predetermined distance from each other. A section of chemical substrate is disposed between the screens. Voltage is supplied to adjacent the first screen with, for example, an electrode device. A timing circuit is provided for pulsing the voltage at a predetermined pulse rate. A temperature sensitive device may be interfaced with the treatment chamber and timing circuit so that the pulsed voltage is only supplied to the screen within a predetermined temperature range.

Abstract: An automotive internal combustion engine is equipped with a hydrocarbon adsorber for the purpose of controlling the emissions of unburned hydrocarbons from the vehicle's tailpipe. Regeneration of the adsorber is achieved by an electronic engine controller operating an air pump and a sample pump, using information from an exhaust gas oxygen sensor.

Abstract: An exhaust-gas recombustion system for recombusting exhaust gases coming out of exhaust ports of an internal combustion engine equipped with a catalytic converter, comprises a plurality of branch pipes of an exhaust manifold connected to the exhaust ports, a plurality of secondary air injection tubes each connected to either one of the branch pipes for recombusting the exhaust gases coming out of the exhaust ports by secondary air injection. An air-injection nozzle of the secondary air injection tube is directed towards the exhaust port communicating with the connected branch pipe along the axial line of the exhaust port. Additionally, the air-injection nozzle is arranged close to a curved wall of the connected branch pipe to effectively sweep away resultant exhaust gases left in the exhaust port and consequently to assure a rapid activation of the catalytic converter during a cold start of the engine.

Abstract: An exhaust silener for a compact 2-stroke cycle internal combustion engine has a housing, a sheet of sound absorbing material provided on the inner surface of the housing, and an oxidation catalyst means provided on the surface of the sound absorbing material. The catalyst serves to promote oxidation of unburnt components of lubricating oil in exhaust gases.

Abstract: An exhaust manifold for conducting the heated exhaust gas from an internal combustion engine. The exhaust manifold has a thin noncast metal inner layer, a thicker sheet metal outer layer, and a layer of insulating material, preferably ceramic beads, between the inner and outer layers. The method of making the exhaust manifold is also disclosed. The exhaust manifold is damped, insulated, and permits quicker light off of the catalytic converter.

Abstract: In order to achieve a gear ratio control of a continuously variable transmission, a transmission gear ratio is controlled based on a difference between an actual engine speed and a target engine speed to be set in response to a first parameter corresponding to an accelerator opening. When controlling the transmission gear ratio, a plurality of change characteristics of the transmission gear ratio are set for, in particular, the kickdown gear shifting. In response to a second parameter representing the driver's demand for a traveling condition, a change characteristic of the transmission gear ratio is selected from among the plurality of change characteristics of the transmission gear ratio, to execute the speed ratio control in accordance with the thus selected change characteristic of the transmission gear ratio when a kickdown gear shifting is needed.

Abstract: A hydraulic system includes a hydraulic pump, a reservoir, a hydraulic function, such as a cylinder, and a power beyond valve for controlling communication between the pump, the reservoir and the cylinder. The pump provides pressurized fluid at a pump output as a function of the pressure in a load sensing port. For generating a pump controlling load sensing signal in case that the cylinder does not generate such a signal, it is proposed to provide a valve which blocks in a first position or opens in a second position communication between the feed line of the cylinder and the load sensing port of the pump. The valve functions in dependence of control pressures acting on each side of a valve member. A spring is provided biased to urge the valve member to its first closed position. Further, shift valve means are provided to supply selectively different pressures to both sides of the valve member.

Abstract: A hydrostatic machine which includes a housing having an internal space accommodating a rotatably journaled driving mechanism, and wherein the portion of the internal space which is not occupied by the driving mechanism encompasses a drain oil chamber which receives the drain oil inclusive of lubricating oil which is discharged from bearing locations of the hydrostatic machine, and which is connected or port to a tank through at least one drain oil connection of the housing and through a drain oil line.

Abstract: The mobile machine is provided with a power unit containing a prime mover and a hydraulic system connected thereto for supplying power to hydraulically operated machine parts. The power unit includes a number of components and is mounted at a support frame. Either the entire power unit as such or selected ones of its components are arranged for displacement between a first or operative position and a second or displaced position in which free access is provided to the power unit as such or its selected components for maintenance and/or repair operations. Also, those parts of the machine, which are hidden behind the power unit or its selected components in their first or operative position, become accessible in the second or displaced position of the power unit or selected components thereof.

Abstract: An inertial body drive mechanism which is arranged to prevent a reversing motion of a hydraulic motor 1 after an inertial rotation and which is capable of stopping the hydraulic motor 1 quickly together with an inertial body. An oil chamber 26 of a reversing motion preventive valve 21 and an oil reservoir chamber 34 of an oil suction feeder 32 are communicated with each other through a tank conduit 27 with a throttle 38. Operating oil is supplied into and out of the oil chamber 26 by way of the oil reservoir chamber 34 of the oil suction feeder 32 in relation with displacement of a piston operating in response to oil pressure acting in a pilot chamber 33. When inertial rotation of the hydraulic motor 1 is once stopped, operating oil is supplied from the oil reservoir chamber 34 to the oil chamber 26 thereby sliding the reversing motion preventive valve 21 from a closed position (a) to an open position (b) to prevent reversing motions of the hydraulic motor 1.This application is a designated filing under 35 U.

Abstract: A heat sink (14) provides thermal communication between an actuator (18) and fluid controlled by a valve (12) which is flowing through a conduit (10). The actuator includes a vessel which is defined on its largest surfaces by plates (22, 50) of beryllium oxide thermally conductive ceramic covered with thermally conductive, relatively electrically non-conductive nichrome foil (24, 26). Longitudinal sides (30, 32) of the vessel are also relatively non-conductive. A thermally and electrically conductive core, such as accordion pleated beryllium copper foil (44) or a carbon fiber mat (82, 116) is disposed in the chamber. Electrical current flows through the core itself (FIG. 4) or through electrically insulated heating wires (80) (FIG. 5) or through an electrically insulated heating surface layer (FIG. 6) causing resistance heating and melting of a non-gaseous polymeric phase change compound (46). The resistance heating current is inductively induced in the embodiment of FIG. 8.

Abstract: A display holder (10) is formed from a main frame member that is a single extrusion. The main frame member includes opposite edge frame portions (28, 30) and a center panel (10). Frame portions (64, 66) snap onto the ends of a center panel (10) to complete a frame that extends entirely about the periphery of the display holder (10). The display holder (10) may be mounted by a mounting member (44) which includes a hinge strip (92). Hinge strip (92) and a pair of mounting member flanges (42, 90) may be made by a co-extrusion process. A rigid structural plastic is used to form the flanges (42, 90). A bendable, resilient plastic is used to form the hinge strip (96). The hinge strip (96) will bend in response to a side force applied to the display holder (10). Hinge strip (92) will act as a spring and will swing the display holder (10) back to its at rest position when the force is removed.

Abstract: A power generation system for use in outer space includes a radiation receiver disposed for receiving energy from solar, stellar or planetary heat radiation. The radiation receiver includes at least two evaporator cells. Each of the evaporator cells has an inlet, an outlet, a passageway for a refrigerant, and is constructed of a heat absorptive and conductive material. Energy from the solar, stellar or planetary radiation is absorbed by the radiation received and transferred to the refrigerant for changing the refrigerant from a liquid to a gas. The refrigerant gas is directed to a turbine or other engine wherein the gas is expanded and energy is released in the form of rotation of a shaft. The turbine shaft may be coupled to a generator for converting the mechanical rotational energy to electrical power, or to a hydraulic or pneumatic pressure device arranged to store power by compression of a fluid or a gas.

Abstract: A distillation column for separating atmospheric gases in which structured packing having varying crimp angles is utilized within at least two sections or subsections of a single section of a distillation column. In the case of the use of structured packing in multiple sections, the crimp angle of the structured packing used in the first section is greater than that of the second section and is selected such that both sections operate at the same maximum design percentage of flooding limit. The increased crimp angle of the first section decreases the HETP of the packing and thereby allows a column design of reduced height. Structured packing having different crimp angles can be used in a single section of a column when such section is subjected to possible variation of vapor rate. Here the crimp angles are again manipulated so that the subsections operate at the same maximum design percentage of flooding limit. The foregoing adaptation improves turndown performance.

Abstract: A process and apparatus for producing a high purity nitrogen vapor product from the rectification of air within high and low pressure columns operatively associated with one another by a condenser-reboiler. The high pressure column incorporates a sufficient number of theoretical stages to produce a high purity nitrogen vapor which after being condensed by the condenser-reboiler, serves to partially condense a lower purity nitrogen vapor tower overhead produced in the low pressure column through indirect heat exchanger. In such service, the condensed, high purity nitrogen vapor is at least partially vaporized and utilized as a product stream. Since there is no direct heat exchange with the high purity nitrogen produced within the high pressure column and the lower purity nitrogen vapor produced in the low pressure column, the low pressure column can incorporate fewer theoretical stages and therefore can be built at less expense than similar air separation plants of the prior art.