Abstract: An elongated flexible strap member is provided including a lateral projection on one end portion thereof. The projection equipped end portion of the strap member is insertable into the transverse lock body bore of a door with the projection on the strap member received within the end of the lock bolt bore of the door opening into the lock body bore. When the door is pre-hung within a door frame, the end portion of the strap not equipped with the projection is deflectable across one side surface of the door between the lock body bore and the free swinging edge of the door, across the interface between the door edge and the opposing door frame portion across the frame portion and thereafter deflectable across and securable to the surface of the door frame portion opposite the surface thereof which opposes the free swinging edge of the door.

Abstract: A system of rigid, generally planar dimensions adapted to by removably, hingeably coupled to a conventional ventilator louver assembly to environmentally seal same to prevent energy losses. The louver covering system includes a rigid, generally rectangular frame formed of specially extruded members, which frame surroundably supports a rigid, generally planar insulating sheet. The frame includes front, side, and rear extrusion members which include integral bosses to aid in assembly. A separate, rigid, elongated extruded hanging rail having a hinge portion is adapted to be permanently coupled to the louver assembly. The system frame rear includes a cooperating hinge portion, which, when coupled to the aforementioned hanging rail hinge coupling extrusion enables the system to be hingeably swung to a closed position relative to the louver assembly. Latching means, preferably coupled to the louver assembly, may be manually twisted to engage flange portions of the frame to seal the louver.

Abstract: A dressing apparatus for a dished or plate-shaped grinding wheel of a tooth flank-grinding machine, comprising a dressing carriage or slide which can be radially advanced or fed by means of a radial drive in relation to the grinding wheel. The dressing carriage supports a dressing tool which serves for dressing the outer surface of the grinding wheel and a feeler which serves to scan the active end surface or rim of the grinding wheel. The feeler serves to control the axial advancing or infeed movement of the grinding wheel, and such feeler, during such advancing movement, always moves radially with respect to the grinding wheel. The dressing tool is arranged upon a tool support in off-set relation to the feeler in the peripheral or circumferential direction of the grinding wheel.

Abstract: Apparatus for holding a drill bit to be sharpened comprises a chuck having jaws which ride in guide grooves for accurately centering the drill bit. The chuck is formed on a conical end portion of a cylindrical, rotatable element, and is capable of accurate alignment by economical manufacturing methods. The chuck also carries a cam surface for producing reciprocative motion to the drill bit. The rotatable element is mounted for pivotal motion about a horizontal axis and a second axis normal to the horizontal axis.

Abstract: A device to hold workpieces, in particular gears, to hone an existing axial center bore, consisting of a workpiece support member, which may be loaded and unloaded from one side. Levers supported pivotably in grooves formed in the workpiece support member are provided with tooth-like ends which engage tooth gaps of the workpiece in an approximately diametrically opposed manner. The levers are resiliently biased to rest in their engaged position in the direction of rotation of machining against stop surfaces of the grooves, with the levers being pivoted in the opposite direction during unloading to disengage the lever ends from the workpiece.

Abstract: A weld sander for smoothing the surface of a weld which joins lengths of pipe. The weld sander has a carriage which travels around the pipe and movably mounts a head carrying a grinding belt, with the belt mounted for movement toward and away from the weld and also for tilting movement. Pipe followers, associated with the head, control the minimum distance of the belt from the pipe sections and, additionally, establish a minimum distance between an edge of the belt and a pipe to prevent engagement between the belt and a pipe when the belt tilts.

Abstract: A method of polishing an electrophotographic photoconductive member, which comprises polishing said surface with polishing particles selected from the group consisting of solid organic polishing particles composed of a polysilsesquioxane having, on its silicon atoms, substituents selected from a lower alkyl group having 2 to 5 carbon atoms, an alkoxy group, an aryl group and an aralkyl group; a combination of said solid organic polishing particles and solid inorganic polishing particles; and a combination of solid organic polishing particles composed of polymethylsilsesquioxane and solid inorganic polishing particles.

Abstract: A drill bit suitable for making holes in glass and ceramic structures has an elongated member with a cutting end and a retaining end with an axis passing through its ends. The portion of the member near the retaining end is formed as a shank which is capable of being suitably held and rotated by a chuck or the like. The shank distal to the retaining end terminates in a shoulder which tapers inwardly toward a pilot element which extends axially from the center of the shoulder coaxial with the shank. The pilot element terminates in a cutting surface with the cutting surface forming the forwardmost portion of the cutting end of the member. A cutting grit is permanently affixed at least to the cutting surface on the pilot element, the shoulder and the portion of the shank immediately adjacent to the shoulder.

Abstract: A latching system is disclosed for a telescopic boom, and comprises a ladder structure for positionment longitudinally along a side of a smaller boom section, and a latch plate assembly for a pivotal attachment to a large boom section. Bias means is further provided for applying a biasing force tending to move the latch plate into the ladder detent slot, and counter bias means for applying counter bias force to the latch plate. Linkages are adapted to extend between the latch plate and the tensioned chains which actuate the small boom section outward and inward relative to the large boom section, whereby the tension forces within the chains serve to provide counter biasing forces to the latch plate mechanism.

Abstract: In order to span an access pit or manhole having a clear opening of relatively large area, one or more I-section steel beams are laid across the opening so as to divide the area to be covered into a number of smaller areas. One or more frame members, each of which is shaped so as to support parts of two covers or gratings which are adjacent and on opposite sides of the associated beam, are then positioned directly above the center line of the or each beam and bolted to the beam. Finally the areas between the or each beam and the sides of the pit or manhole, and between the beams themselves, are covered by covers or gratings supported by the frame members. Such an arrangement ensures that eccentric loading of the beams does not occur under heavy loading conditions.

Abstract: A screen structure which includes a number of interspaced carrier members and at least one long screen member having a base flange which is adapted to be mounted in a holding track through a tilting insertion motion. At least one edge portion of the base flange and a remaining space is left behind the edge portion and the respective holding track. Profiled filler members are endwise insertable into at least a partial length of the remaining space for stabilizing the base flange relative to the carrier member. At least one end of each filler member has a longitudinally projecting end portion forming a resiliently bendable finger of a reduced cross section such that, during an insertion, the finger is bendable away from an adjacent wall portion of the carrier member. The outer end portion of the finger is provided with a lateral protrusion which is adapted to snap outwardly behind an end or recess edge thereof by the end of the insertion.

Abstract: An edge structure for a flat roof comprising a cant, a fascia member, and a deformable pressure clip held in a compressed relationship between the cant and the fasicia member.

Abstract: A mounting arrangement for mounting a windshield glass is made of plastics or rubber material with an embedded metal carrier for mounting the arrangement on a flanged joint running around the window opening. The flexible material defines a slit for receiving part of a metal frame which runs around the periphery of the window glass and may be adhesively secured to it before assembly. To facilitate insertion of the window glass, the flexible material may be bent outwardly, and is then allowed to resile and locked in the resiled position by inserting a stiffening member into a slot. The arrangement provides substantially flush-mounting of the window glass, and no part of the flexible material or of the stiffening member extends further outwards of the window opening than the metal frame to any significant extent.

Abstract: The present invention relates to a premanufactured corner framing structure adapted to be interposed between two angled framed wall sections to form a corner. In connecting the two framed wall sections, the corner frame structure is inserted vertically between the lower plate and upper plate structures of the respective wall sections. In the particular design disclosed herein, the premanufactured corner framing and support structure includes a plywood web with a pair of vertically extending flanges formed adjacent an inner edge of the web and a pair of vertically extending flanges formed adjacent an opposed outer edge of the web such that said flanges are generally aligned on each side of said plywood web and maintained in spaced apart relationship by the web itself. Consequently, it is appreciated that the corner load of the structure is carried by the flanges and the composite structure of the flanges and plywood web.

Abstract: An insulated building component which includes two concrete halves having an insulating layer interposed between them. The insulating layer is made from a material with good compression strength and disallows any direct contact between the top half and the bottom half. The top, bottom, end and side surfaces of the building component are parallel or perpendicular with respect to each other and present similar surfaces to those of a standard building block. A plurality of mated walls extend between top and bottom surfaces of the component and are angled to prevent vertical movement of the half members. The facing surfaces of the half members and the outermost edges of the walls are sloped, oppositely with respect to each other, to prevent width-wise lateral movement of the halves. The insulation layer, while retaining its strength in compression between the two halves, serves to decrease the thermal conductivity of the building component.

Abstract: An elongated ceiling conversion strip 28 comprising an elongated flat central web 32, an upper flange portion 34 extending upwardly from the inner longitudinal edge of web 32 and an array of spaced mounting brackets 42 depending from said web, each of said mounting brackets comprising a lower flange portion 44 extending downwardly from said web and a pair of mounting flanges 46 and 48 extending longitudinally from said lower flange portion, each of said mounting flanges extending in opposite directions from each other. A ceiling assembly for utilizing conversion strip 28 comprising a drop-in ceiling assembly 10 and a linear ceiling assembly 14 is also disclosed.

Abstract: A composite gambrel roof truss assembly comprises a prefabricated top truss having a rigid lower chord and two top chords, all connected together to form a rigid triangular top truss unit, with two prefabricated side truss units, each having a rigid diagonal base chord and two outer top chords, all connected together to form a rigid triangular side truss unit whose topmost top chord is dimensioned to be juxtaposed in abutting mating relationship with a corresponding top chord of the top truss unit, and with connector means joining the topmost chord of each side truss unit with its abutting mating top chord of the top truss unit whereby the prefabricated top truss unit can be readily connected at a construction site to both of the side truss units to form a sturdy, rigid composite truss assembly capable of rapid installation by being hoisted bodily into position, and having a peak junction and two hip junctions producing an economical four-chord arched gambrel roof truss assembly of light weight with an unusua

Abstract: The invention relates to a support system for buildings having straight, longitudinally and transversely extending girders which are subjected to both compressive and tensional stresses. The girders are releasably connected to one another by connecting members. The girders and the connecting members are each in the form of a single casting made of a ductile metallic material such as gray cast iron with spheroidal graphite, malleable cast iron or cast steel.

Abstract: A support for use with an associated reinforcing rod, which is intended for reinforcement of concrete, which includes first and second generally planar members. The first member has a body portion, a first elongated leg and a second elongated leg. The first and second elongated legs extend from the body portion in mutually diverging relationship. The body portion has an edge opposite to a side from which the first and second legs extend which is substantially rectilinear. The second member has a body portion, a first elongated leg and a second elongated leg. The first and second elongated legs extend from the body portion in mutually diverging relationship. The body portion has an edge opposite to a side from which the first and second legs extend which has upstanding extremities to constrain movement of an associated reinforcement rod. The body portions define interengaging slots for fixing the first and second generally planar members in substantially normal relationship.

Abstract: A hinged metal web member for use in forming a truss or joist assembly. In one embodiment, the web member includes a pair of leg members having connector plates at the upper and lower end portions. Each connector plate has a plurality of teeth struck therefrom, with all of the teeth extending from a common side of the web member. The leg members are joined at their upper end portions by a hinge which allows the leg members to be folded together for shipping and storage, then opened to assume a V configuration when forming a truss or joist, A series of such web members may be hingedly connected to provide a web assembly of the required length and configuration. The hinge connection should be sufficiently strong and rigid to allow the web member to be utilized under conditions to be encountered in truss assembly, yet sufficiently pliable that the hinge may be snapped or broken apart to obtain a web member of the desired length.

Abstract: A concrete anchor is fixedly mounted in a reinforcing grid having a square mesh prior to the pouring of a concrete wall slab. A groove is formed on the concrete anchor between two flanges. The flange and the groove are laid out with respect to their dimensions so that the concrete anchor may be inserted in a mesh and fastened therein by rotation. A connecting nut is capable of being screwed into the concrete anchor. The connecting nut is movable while mounted in the concrete anchor enabling compensation for oblique positions with respect to the external surface of the concrete wall.

Abstract: A method of replacing damaged panels of a cladding system includes the use of a replacement panel. The replacement panel includes a sheet having a side hanger secured to a major surface of the sheet at each of opposed sides of the sheets and extending beyond their adjacent side of the sheet and a bottom hanger secured to the major surface of the sheet adjacent bottom edge of the sheet and having an exterior facing groove. After the damaged panel is removed, an opening is provided defined by the top hanger of the removed panel, vertical splines and a horizontal spline. The exterior groove of the bottom hanger is mounted on the horizontal spline and the panel tilted in position against adhesive provided on outer surface of top hanger. Extending portions of the side hangers are screw fastened to underlying ones of the vertical splines. Thereafter, the space between the previously installed panel and replacement panel is filled with a layer of silicone.

Abstract: A method for the manufacture of a packaged pet collar which includes preparing a blended composition of a vinylic resin, an ectoparasiticidally effective amount of recrystallized phosmet and a plasticizer, extruding the composition into a continuous length, cutting the extruded length into individual segments, affixing a buckle, and thereafter packaging the resultant pet collar in a pouch of spunbonded olefin. The packaged collar is characterized by the absence of offensive mercaptan type odor upon opening the package.

Abstract: A sheet-like material processing apparatus is provided with a pre-processing section and a post-processing section. In the pre-processing section, the sheet-like material set in the supply section is taken out sheet by sheet and those taken-out ones are sorted, by an inspecting device, into at least two kinds of sheet-like material. A transfer/sorting device physically sorts those sheet-like material on the basis of the sorting by the inspection device. The sorted sheet-like material are separately collected each for a given number of the sheet-like material by a sorting and collecting device, and then are bundled by a sheet bundling device. A transfer device transfers the given number of the bundled sheet-like material. Of those sheet-like material transferred by said transfer device, the unreusable ones are invalidated by an invalidating device.

Abstract: The packaging machine of the present invention is of the type in which successive trays moving along a conveyor line are enclosed in a continuous tube of plastic film which is thereafter severed between the trays to provide end flaps which are first pulled downwardly by suction forces and then folded upwardly against the bottom of the respective ends of the trays to seal the contents therein. A nozzle system placed near the location where the severing takes place pulls the severed portions of the tube downwardly between each adjacent pair of trays. The nozzle system is controlled by a valve system which teminates the downward pull as the severed portions are being folded upwardly against the bottoms of their respective trays.

Abstract: An adjustable drive mechanism for reciprocating a pair of sealing jaws in a packaging apparatus and controlling the stroke length includes a drive belt operatively connected to move the carriage and jaws in the up and down direction. A movable pulley assembly interconnects the drive belt ends and is attached to a working arm oscillated by a linkage arrangement. The linkage arrangement includes a rocker oscillated with a crank and connecting rod. A control link pivotally connected to the rocker completes the linkage and deflects to allow raising of the working arm and driving the sealing jaws on a downward draw stroke. The upper end of the control link constitutes an adjustable pivot to vary the degree of movement imparted by the working arm to the drive belt. The adjustable pivot is carried by an annular adjustment ring mounted within an annular guide groove of a mounting plate.

Abstract: A cotton module is one type of a stack of agricultural produce. A tarp is specially folded and mounted on the back gate of a cotton module builder. As the module builder is moved off a completed module, the tarp is unrolled onto the top of the module. The tarp is tied down using ground cords, which extend along the ground underneath the module. The ground cord is mounted on spools on the side wall of the module and is placed under the side walls while the side walls are elevated upon the conclusion of a move from an old location to a new one. Then, when the module builder is lowered and the module is built, the ground cords are in place. The tarp's sides are vented.

Abstract: In a drive system for the threshing cylinder of a combine harvester, a conventional infinitely variable V-belt drive, is combined with a two-speed final drive assembly. In the final drive assembly, an epicyclic gear train is housed within the body of a driven sheave journaled on the cylinder shaft. For a direct drive mode, the sheave is coupled to the shaft by way of a flange mounted non-rotatably on the shaft. A sun gear of the gear train is controllable externally of the sheave body and may be non-rotatably secured relative to the combine body for a cylinder speed reducing mode. The combine cylinder speed is therefore infinitely variable within, selectively, either an upper range or a lower range.

Abstract: A device to adjust the length of billets in a cane harvester. Hydraulic motors of different fluid throughput capacity drive chopper rolls which are mechanically connected. The outlet of one of the motors conveys fluid through a connection to the feed rolls which convey the cane to the chopper rolls. The outlet connection of a second of the hydraulic motors is interchangeable so that the fluid from either motor may pass to the feed rolls as desired.

Abstract: A two row harvester running gear is of a tricycle type with all wheels being hydraulically driven and with a center rear wheel that is steerable and smaller than the two front wheels. The running gear configuration provides sharper turns in muddy fields without bulldozing, and space for side mounting pilers adjacent the front wheels and inboard of them to minimize the number and degree of changes of direction in cut cane travel. Closed loop and parallel connections of an hydraulic power system rotates all wheels for a common linear speed, and at torques relative to the size and positioning thereof for maximum traction.

Abstract: A mounting and dismounting system for a rear-mounted cotton harvester or similar implement which permits the tractor to be removed from under the crop receptacle without utilizing a hoist or other large equipment. By attaching dismounting stands to the rear cross auger frame and to the rear lift frame assembly, the rear basket posts which normally are connected to the tractor axle can be lifted therefrom by extending the hydraulic cylinders connected to the rear lift frame assembly. The front basket support posts are unpinned from the forward frame of the basket, and as the rear basket posts tilt rearwardly, the basket is lifted to provide clearance in the forward direction. The tractor can then be driven out from under the basket. An extension hose is connected to the lift cylinders so that they remain connected to the source of pressure on the tractor as the tractor is driven forwardly.

Abstract: A cotton picker spindle having a thin ceramic coating for increased smoothness and hardness.

Abstract: A work implement having a tubular handle, a tool having tines mounted within the handle for movement between an extended position and a retracted position, and a pendulum-action tool mounted on the handle.

Abstract: Apparatus for laying of optical waveguides into sinuous grooves of a support filament in which a laying device surrounding a feed path for the filament has a plurality of elongate guide elements for the waveguides, the elements extending downstream from a carrier and being inclined to the feed path to terminate in free inner ends. The guide elements are rigid and are allowed by the carrier to have lateral swinging movement to enable their free ends to follow the path of a groove in the support filament as it moves along its feed path. A groove locating projection is provided to maintain positional relationship between the carrier and support filament as the filament passes the carrier.

Abstract: A dust-removing mechanism in an open-end spinning frame has a dust-removing chamber into which a dust-removing opening opens, the dust-removing opening being defined by a rear wall disposed upstream in the direction of rotation of the combing roller and having an edge and a front wall disposed downstream in the direction, there being an angle .alpha. formed between first and second lines passing through the front and rear wall edges and the center of the combing roller, an angle .beta. formed between a third line passing through the center of the combing roller and the center of an opening in the rotor and a fourth line passing through the center of the combing roller perpendicularly to the third line, an angle .UPSILON. formed between a surface of the front wall and a fifth line extending parallel to the fourth line through the front wall edge, and an angle .delta.

Abstract: The disclosure relates to open end friction spinning devices of the type having fibers supplied in an air stream to a yarn forming slot between two friction rollers driven in the same rotational direction. Auxiliary air supply arrangements are described for supplying an air flow to counteract the tendency of fibers to adhere to the friction roller rotating outwardly from the yarn forming slot. These auxiliary air supply arrangements also aid in returning and properly aligning fibers in the yarn forming region of the yarn forming slot.

Abstract: Gas turbine engines in which provision is made for introducing a liquid coolant into the combustor of the engine. This reduces the flame temperature in the combustor, thereby discouraging the formation of thermal NO.sub.x.

Abstract: A gas fuel injector for a gas turbine engine power plant is arranged to reduce the sensitivity of combustion efficiency to variations in gas fuel velocity injector exit at engine idle. The injector comprises a gas fuel duct which discharges gas fuel into a swirler assembly having passages of decreasing cross-sectional area, the passages also receiving a flow of compressor delivery air from the compressor of the power plant. There is an energy interchange between the gas fuel which may have a velocity of between 80 fps to 1000 fps depending on type of fuel, and the air such that the gas and air leave the injector at similar velocities. It has been found that if these velocities are matched, the combustion efficiency is less sensitive to gas velocity and produces higher combustion efficiencies than an arrangement whereby the velocity of the gas entering the system is dictated by the heat input requirements.

Abstract: A ram jet rocket includes a precombustion chamber having a solid fuel propellant which burns off so that the gases generated are deficient in oxygen when they pass through a central aperture of a valve body into a main combustion chamber in which they are further burned. The valve body aperture is closed by a bore control member which is urged into a proper setting position by a push rod mounted behind the ball downstream of the aperture. The valve body defines an annular nozzle extending from the aperture downstream through one or more elbow passages into a corresponding number of axially extending passages into the main combustion chamber. The valve construction is characterized by at least one by-pass passage which extends from the upstream end of the valve body into the elbow passage which leads to the axial passage.

Abstract: An exhaust gas conduit system for a multi-cylinder reciprocating piston internal combustion engine having its cylinders arranged in at least one cylinder row and provided with a cylinder head having an exhaust manifold connected thereto; exhaust gas conduits establish communication between the respective cylinder and the pertaining cylinder head and are respectively surrounded by the water cooled insulating walls. Each of the water cooled insulating walls along the pertaining exhaust gas conduit is provided with longitudinal water chambers formed by wall portions of the insulating wall and by ribs supporting the water chamber forming wall portions relative to each other.

Abstract: A stirling cycle engine including a working piston defining a working chamber, a crankshaft located in a crankchamber, a connecting rod connecting the working chamber with the crankshaft, the connecting rod being passed through intermediate members. A gas seal structure is provided in the intermediate members around the connecting rod, the gas seal structure including a first oil chamber and a second oil chamber, the second oil chamber being located closer to the crankchamber than the first oil chamber, a resilient sealing ring disposed between the first and second oil chambers and having an outer surface tapered toward the crankchamber to reduce diameter thereof, a spring for biasing the sealing ring toward the crankchamber so that the outer surface of the sealing ring is urged to an opposing surface formed in one of the intermediate members.

Abstract: An output control system for a Stirling engine includes a pressure reducing valve disposed in a highest-cycle-pressure line and connected between at least one working space and a compressor and a booster valve disposed in a lowest-cycle-pressure line and connected between the working space and the compressor. The pressure reducing valve and the booster valve are selectively actuatable by an accelerator lever attached to a feedback piston cylinder connected to the lowest-cycle-pressure line. The output control system also includes a two-way unidirectional solenoid-operated valve disposed in the highest-cycle-pressure line upstream of the pressure reducing valve and a three-way bidirectional solenoid-operated valve disposed in the lowest-cycle-pressure line downstream of the booster valve.

Abstract: A piston and cylinder for a Stirling engine and the like having top and bottom meshing or nesting finned conical surfaces to provide large surface areas in close proximity to the working gas for good thermal (addition and subtraction of heat) exchange to the working gas and elimination of the usual heater and cooler dead volume. The piston fins at the hot end of the cylinder are perforated to permit the gas to pass into the piston interior and through a regenerator contained therein.

Abstract: An arrangement for controlling the supply of pressurized hydraulic fluid from a master cylinder and from a pressure source into hydraulic circuits leading to wheel brake actuating cylinders includes a valve device including a control piston acted upon by a spring-loaded auxiliary piston in one direction and by the pressure in a return conduit in the opposite direction. Upon brake pedal depression, hydraulic fluid pressure from the pressure source acts on the auxiliary piston in opposition to the spring force so that the auxiliary piston ceases to act on the control piston. Then, as hydraulic fluid is discharged from the brake actuating cylinders during antiskid control action, pressure builds up in the return conduit and propagates to the control piston to move the same into its open position in which it admits pressurized fluid from the pressure source to check valves which are acted upon in opposition to their opening by the tandem master cylinder pressures.

Abstract: A master cylinder is provided on the cylinder body with a reservoir-receiving mouth formed near the border of the section of of a large diameter and the section of a small diameter of a stepped bore, a through hole being formed between the bottom surface of the reservoir-receiving mouth and the first pressure chamber, a compensation hole being formed between the bottom surface of the reservoir-receiving mouth and the second pressure chamber, a valve seat fitted in and fixed to the reservoir-receiving mouth and having an internal hole formed therein, a check valve provided within the reservoir-receiving mouth between the bottom surface of the reservoir-receiving mouth and the valve seat with the valve element being pressed against a resilient member fixed to the valve seat by means of a spring, a projecting member protruding into the first pressure chamber through the through hole provided for the valve element coaxially with the valve element so that the valve element is titlted to form a passage between the

Abstract: A system for controlling the supercharging pressure of an engine with a turbocharger. A bypass is provided to bypass an exhaust-gas turbine of the turbocharger and a waste gate valve is provided in the bypass. An actuator is provided for operating the waste gate valve. A pressure sensor is provided for detecting the pressure in one of cylinders of the engine and for producing an electric output voltage dependent on the pressure, and a peak hold circuit is provided for holding a peak voltage of the output voltage of the pressure sensor in one cycle of the operation of the engine. The peak voltage is compared with a reference value by a comparator and a signal is produced by the comparator when the peak voltage exceeds the reference value. The system operates in response to the signal for operating the actuator, so that the waste gate is opened so as to control the supercharging pressure to a substantially constant value.

Abstract: In combination with an internal combustion engine and an air compressor, for use in an aircraft, the compressor providing compressed air to the engine's air inlet, there is provided a variable overboard bleed valve. The bleed valve is operated by a valve controller which controls the position of the bleed valve in response to changes in engine operating conditions. This permits maintaining optimum compressor operation over a wide range of engine operating conditions without exceeding the critical pressure of the compressor, so as to avoid surge. The controller can be preferably linked to the propeller governor and the throttle control for the aircraft, so as to move in response to movement of the governor and throttle control.

Abstract: A vehicle speed control device for use in a trolley-assisted dump truck of a single phase alternating current system can control the driving torque in proportion to the amount of depression of an accelerator pedal in the same manner as in the case of running under an engine mode condition even when running under a trolley mode condition utilizing a commercial power source.

Abstract: The strut supporting the diffuser to the engine outer case wall which also supports the shaft bearing of a turbine engine is conically shaped having its base located downstream with respect to the flow of the engine working medium and is judiciously angled so that the line of action for the bearing load is aligned to coincide with this angle, pass through the strut and intersect the centerline of the engine and the midpoint of the bearing. This enhances the stiffness of the support, reducing the weight necessary to support the same load. The diffuser case and support from the diffuser to the bearing is offset from the strut to minimize direct radial thermal incompatibility and the diffuser is spaced from the outer engine case wall reducing thermal stresses.

Abstract: An air-to-air radiator is inserted in the circuit of the supercharging compressor of an engine. A turbine which is driven by the exhaust gases of the engine drives the compressor. A regenerator, through which the gases issuing from the turbine pass, is placed in an air circuit connecting the compressor to the motor. The air circuit of the radiator is connected in parallel with the air circuit of the regenerator and a directional valve device is adapted to open one of these air circuits while closing the other and vice versa.