Abstract: A load-sensing device for sensing strain on the rear drive housing responsive to draft loads on the vehicle for generating a signal for controlling the raising and lowering of an implement through a hydraulic system of distributing vehicle weight or vehicle and implement weight.

Abstract: An agricultural implement has a main frame and laterally positioned carrier frames pivoted to the sides of the main frame. The main frame extends forward to a coupling point for connection to a prime mover. The rear of the main frame mounts a hydraulic piston assembly that is interconnected to each carrier frame to elevate same into an upward tilted transport position. Each frame and carrier frame supports a frame portion having a respective group of rotatable soil working members positioned in a row to work a broad path during working operation. Connecting members on the carrier frames are connected to the central frame portion to raise same when the carrier frames are in their tilted transport positions. Latches supported on the main frame secure beams of the carrier frames in their tilted positions until release.

Abstract: An assembly for creating furrows in a freshly plowed field. The furrows, two to three feet apart, are usually created in the fall and are useful for retaining moisture in the soil during the winter months and are helpful in preventing soil erosion by the wind. The furrowing assembly is detachably mounted on a mulcher bar assembly which is mounted to a moldboard plow. The mulcher bar assembly includes an elongated bar having several chisel-type field cultivators downwardly extending in a soil-engaging position. The orientation of the mulcher bar may be reversed so that rod-like teeth members extending therefrom are in a soil-engaging position for mulching in the spring. Thus, depending upon the orientation of the mulcher bar, the apparatus may be used for either mulching or furrowing.

Abstract: The depending struts on a tool beam have "floating" bearings at their lowermost ends which can be displaced in a horizontal direction generally parallel to the beam between relatively closely spaced, fixed limits. The bearings in turn journal a disc gang assembly for rotation of the latter during ground engagement, yet the bearings are secured against axial displacement relative to the assembly so that the assembly and the bearings can move together through said displacement between the fixed limits. Adjustment of the struts along the beam during installation until they are positioned between such limits so as to permit displacement in either direction thereby avoids axial pre-loading of the bearings.

Abstract: A digital platform scale having a base and movable cover thereon with a lever system in the base converting vertical movement to horizontal lever movement, spring means connected to the base and lever to counter-balance the lever movement and a differential transformer connected to the lever system and to an electrical digital readout to display weight, an improvement is provided that disposes the spring horizontally in the base and connected to the lever system at its point of maximum movement. A differential transformer is interposed as part of the connection between the spring and the lever system and axially aligned with the spring.

Abstract: A vehicle frame has first and second members having adjustably telescoping channel portions securable by bolts disposed in selected combinations of holes provided in the channel portions for providing a total vehicle frame of a chosen length and wheelbase. Adjacent portions of the respective members define portions of a battery compartment which varies with the size of the vehicle frame to accommodate the power requirements thereof. Channel shaped spacers join facing portions of the members for increased strength of the resulting frame.A rear axle mounting assembly is adjustably mounted on the rear member for independent adjustment of the wheelbase.A second embodiment has front and rear members secured by a selected nestable spacer member having an adjustable axle mounting for independent adjustment of the vehicle frame and wheelbase.

Abstract: A device for measuring torque in a shaft, e.g. for controlling a power-assist steering arrangement for a vehicle, in which two rotatable parts of a shaft are coupled together by an elastic body while one of the shaft parts comprises a magnet and the other has a differential field plate sensor responsive to the position of the magnet relative to the sensor for generating an analog output representing the torque exerted between the parts of the shaft and hence the torque applied to the latter in rotating the shaft. The magnet lies opposite the center of the differential field plate sensor in an unloaded condition of the shaft.

Abstract: A loudspeaker enclosure is disclosed which includes a horizontal bottom wall, parallel spaced vertical front and rear walls connected with the bottom wall, the front wall containing an opening for receiving a loudspeaker, and a horizontal top wall connected with the upper edges of the front and rear walls. The invention is characterized by the provision of vertical baffle walls which define a converging compression chamber behind the loudspeaker opening in the front wall, and a pair of exponential folded horns arranged laterally on opposite sides of the compression chamber. Each of the baffle walls between the compression chamber and the folded horns contains at least one opening adjacent its forward edge, each of the openings having a generally trapezoidal vertical cross-section, the vertical dimension of the front portion of the opening being greater than the vertical dimension of the rear portion of the opening.

Abstract: A speaker cabinet includes a baffle plate having at least one aperture for mounting a speaker unit, the baffle plate having a plurality of small areas over its entire surface and so constructed and arranged that the sound waves propagated along the surface of the baffle plate are scattered.

Abstract: A plural column hoist mechanism in which the lifting slides are synchronized by a chain and safety devices are operative in the event of chain breakage. If the chain is slack, the hoist mechanism may be operated to effect upward travel of the lifting slides.

Abstract: In a multiple disc wet brake or clutch of the type having a disc pack wherein the plurality of alternate discs, that have projections extending radially inward for operative interconnection with a rotatable hub, are provided with a plurality of equiangularly spaced circumferential locating tangs extending radially outward from the peripheral outer surface of these discs, for locating these discs relative to the housing inner peripheral surface so as to permit the removal of the rotatable hub without causing substantial misalignment between the radially inward extending disc projections and the corresponding external splines on the rotatable hub to allow subsequent reinsertion of the rotatable hub into the disc pack.

Abstract: A hydrokinetic torque converter mechanism for use in an automotive vehicle driveline comprising a bladed impeller, a bladed turbine and a bladed stator situated in toroidal fluid flow relationship, an impeller housing surrounding the bladed members, a lock-up clutch structure in said housing adapted to establish a direct connection between said impeller and said turbine, said turbine being connected to a turbine shaft that in turn is connected to torque input elements of a multiple ratio gear system, a one-way coupling located between said turbine shaft and said clutch structure for accommodating transfer of torque from said impeller to said turbine shaft but preventing torque transfer in the opposite direction thereby allowing coast braking of the driveline as the turbine tends to overrun the impeller but permitting direct mechanical torque transfer from the impeller to the turbine shaft during normal torque delivery, the driveability during coasting thereby being improved.

Abstract: An electrically operated shop towel vending machine for dispensing a clean shop towel only in response to the proper input of the satisfactory dirty shop towel which is inspected as to length, strength, texture and/or bulk. The input section comprises an inspection mechanism which employs a continuous chain on which a towel is hooked passing beneath an inspection wheel which operates a sprocket and measuring chain only in response to proper actuation of the wheel to activate electrical switches indicating that a proper towel has been inserted. The delivery section of the machine comprises a continuously moving pickup conveyor which delivers the towel from a pile of towels to a transfer roll which employs an arrangement of card cloth patches with the needles projecting in predetermined directions in cooperation with a transfer belt and a discharge roll to separate and shed more than one towel so that only one towel is discharged from the cabinet past an electric eye or photocell to stop the machine.

Abstract: A parking control system includes a central parking meter having coin slots and a binary electronic unit cooperating with a number of indicating members representative respectively of a number of parking spaces. The indicating members are adapted to be activated by the electronic unit depending upon the value of the coin inserted and are arranged to continuously indicate the remaining unexpended parking period for each parking space.

Abstract: A printer device using thermosensitive paper as a printing medium includes a thermal head for effecting printing on the printing medium, and means for moving the printing medium and the thermal head relative to each other. An electromagnetic plunger and a spring member for urging the thermal head against the printing medium are provided. The plunger serves to control the printing and, in addition, urges the thermal head against the printing medium with a predetermined pressure force, and the spring member is controlled during the relative movement between the thermal head and the printing medium along a print line on the medium, to urge the thermal head against the printing medium with a lower pressure force.

Abstract: Conveyer load shunting apparatus having a housing with a main shaft equipped with a radial shunt bar extending over the conveyer to divert a load traveling on one conveyer to another. A lever on the main shaft is swung by a solenoid via a push-pull rod to swing the shunt bar from neutral to a shunting position. A spring biases the shunt bar to neutral and the solenoid armature extended. A horizontal rocker bar extends from the housing into the conveyer and has a radial leg equipped with a load engaging wheel. A spring and a radial switch bar on the rocker shaft biases the rocker shaft angularly to swing the wheel to a neutral position below the conveyer. A radial blocker arm on the rocker shaft has an end which is engageable with a peg on the lever of the main shaft to block the angular position of the main shaft with the shunt bar in shunt position. Thus the weight of the load holds the apparatus in shunt position with no strain on the solenoid.

Abstract: A device for assembling large flexible panel layers into press packs, for the production of layered pressed panels, the device including a plurality of parallel layer collecting lines with two layer stacks each, arranged on opposite sides of a transversely extending press pack assembly conveyor. The latter advances from collecting line to collecting line, as a collecting carriage in each collecting line alternatingly collects panel layers from its two layer stacks. The collecting carriages are moved by means of crank drives; the layer stacks are adjustably positioned under light beam position markers.

Abstract: An apparatus for detecting and clearing a jam of articles at the entrance to an article lane divider is provided which includes a plurality of parallel guides defining lanes for articles and conveyor means operative to advance articles toward the entrance to the lanes and to move the articles in the lanes. Detecting means are also included for detecting a jam of articles at the entrance to the lanes along with means for moving at least one of the parallel guides transversely to the direction of travel of the articles in response to the detection of a jam of articles at the entrance to the lanes by the detecting means, thereby breaking up the jam and permitting the articles to proceed into the lane divider.

Abstract: An unscrambling apparatus for bars of material, including lumber which is unloaded in a bulk pile onto said unscrambler to be arranged for individual delivery from the discharge end of the apparatus comprising an elongated stationary frame having rails to receive said bulk at one end, an advancing frame operable sequentially to raise and advance said bars and including means to gradually arrange the bars in a limited row from the outer end of which control means are actuated for the outermost bar to be moved by flipping means to remove said outermost bar from the machine for transfer to further machines or operations.

Abstract: A transport mechanism for feeding cylindrical or prismatic parts of discrete or indefinite lengths at a rapid rate and with accurate position control, through a work station for treatment by automatic inspection devices, part counters, roll printers, or other processing apparatus. A system of opposed belts and guides feeds the parts without rotation and without appreciable slippage at a uniform rate along a fixed feed axis, in such manner that the lateral relationship of the parts to the axis depends on their degree of conformity to a correct geometrical form. This facilitates the inspection of part form as well as dimensions, and improves the uniformity of other treatments. An arrangement of nip rolls driven at reduced speed separates discrete parts uniformly to ensure correctly-phased registration with inspection, rejection, counting, printing, or other treatment devices. The mechanism is readily adjustable to accept parts of different diameters or transverse dimensions.

Abstract: A fluid metering and transfer system is disclosed in which, in a preferred embodiment, a fluid contained in a reservoir is transferred in small amounts by a dipper wire to a conduit extending through the bottom of the reservoir. The fluid is then distributed by gravity flow through the tube to the desired location. The dipper wire is rigidly mounted onto a pivotable shaft. When the present invention is used for transferring lubricating liquid to machines, the shaft of the present invention can be coupled to a shaft of the machine so that the present invention only transfers and distributes the lubricating liquid when the machine is operating.

Abstract: Apparatus for use in driving a mining machine into a driveway extending laterally from a mine roadway comprises a chain of axially extending push rods for engaging the mining machine, each push rod being coupled to an adjacent push rod by a connection which allows relative pivotal movement of the push rods, and feeder apparatus comprising a first thrust mechanism acting in the direction of the driveway and arranged to apply force to that part of the chain aligned with the driveway, and a second thrust mechanism acting in the direction of the roadway and arranged to apply force to that part of the chain aligned along the roadway, and a control device for operating the first and second thrust mechanisms together.

Abstract: An optically clear sterile intraocular lens packaging system which allows inspection and measurement of the lens without breaking sterility. The packaging system includes an outer case, an inner case within the outer case, and means for mounting the lens within the inner case. The inner and outer cases both have tops and bottoms, wherein at least a portion of the tops and bottoms have optically flat transparent surfaces parallel to each other. The mounting means is adapted to mount the lens in a plane parallel to the transparent surfaces of the inner and outer cases.

Abstract: A spare lamp holder for use in a slide tray is disclosed. The holder includes a lamp support member and a cover member. The lamp support member is configured to support a spare projector lamp. A cover member is configured to secure the lamp in the lamp support member. The assembly of the lamp support member, the lamp, and the cover member is disposed in the central cavity of a circular slide tray and held in place by the locking ring member of the slide tray.

Abstract: A support strip preferably made of resilient material and adapted to permit a number of sliders to be removably mounted astraddle one of the longitudinal edges thereof for the sake of convenience in storage. A longitudinal row of spaced apart apertures is formed through the support strip substantially the full length thereof, such that when the sliders are later required for the assemblage of complete slide fasteners, the sliders can be fed to a desired assemblying machine with the support strip running over a sprocket having its teeth engaged in the successive apertures formed therein. A reciprocable push rod may be employed for removal of the successive sliders from the support strip.

Abstract: A supply carrier for removable insertion into a tool case includes a plurality of trays. The trays are generally identical in shape and dimensions. Each tray includes a generally rectangular base and an upstanding flange which includes at least a first side wall and a second side wall spaced from and generally parallel to the first side wall. The trays are connected by a pair of link members pivotally attached to the first side walls and a generally identical pair of link members pivotally attached to the second side walls. The trays are pivotable between a first position of vertical alignment, a second position of supported offset arrangement and a third position of supported horizontal alignment.

Abstract: A dispenser having a plurality of row-arrayed compartments each for releasably retaining a razor blade cartridge therewithin. The opposite ends of the compartments are respectively formed by a partition wall and yieldable, free-standing retention means positioned such that the end of one compartment is not in common with the opposite end of the next compartment, thereby making the compartments independent of one another to minimize the cumulative effects of oversize cartridge tolerances. The free-standing fingers also reduce the force required to manually load cartridges into the dispenser during assembly.

Abstract: A reusable resilient package particularly for the shipment of beverage cans is provided having at least two mating half sections, each containing at least one pair of mating recesses, one recess of each pair receiving half of a lengthwise section of a beverage can of one size and the other recess of each pair receiving half of the lengthwise section of a beverage can of different size having a like diameter but shorter length, said two half sections in one position receiving in each pair of recesses a can of one size and a can of different size and, in a second position, receiving in each pair of recesses two cans of said different size.

Abstract: Boards for wooden packing cases with the shape of a parallelepiped, having connecting elements in the form of tenons and mortises that alternate at regular intervals on the edges of the rectangular hexahedron thereof. Each edge is connected with the others by the tenons and mortises. The pitches of these elements are calculated according to the invention from the overall lengths of the respective edge by a novel method so that the mortise-and-tenon connections have bilateral symmetry about a central point of the overall lengths of the edges. A plurality of the connections has an equal basic pitch in a bilaterally symmetrical arrangement, and the invention provides either a pair of tenons (or mortises) at the ends of the edges or a single tenon (or mortise) at the center, with a different pitch, calculated by the novel method. In addition to the novel boards and the method of making the same, the invention also relates to packing cases made therefrom.

Abstract: A pallet container for the transport of liquids, comprises an inner container of synthetic resin supported at its lower, rounded edges on a correspondingly profiled ring of foamed plastic, e.g., styrofoam. The inner container is disposed in an outer shell of sheet metal with a bottom and a lid and with recesses to provide access to the filling and outlet openings of the inner container. The side walls of the sheet metal shell are prestretched between rounded corners of the shell to form supporting columns for stacked pallet containers. A steel tube pallet is welded to the bottom of the shell and comprises a lower tubular steel frame and an upper tubular steel frame welded together at the corners by profiled metal plates and in the middle of the straight sides by small supporting tubes. The outer sheet metal shell has upwardly and downwardly extending rims which receive respectively the lower and upper tubular steel frames of the pallet, the pallet being welded to the bottom of the container.

Abstract: A steel wire stackable upsettable-wall container is described which comprises a base plane, preferably of rectangular shape, and four upsettable reticular structures, made of steel wire and acting as side walls, rear wall and front wall. The front wall is laterally provided with two vertically movable plates which, as the container is assembled, are raised and engage hook elements located at the sides of the reticular structures. The edges of the three sides of each plate are bent or folded back and engage the steel wires of the front wall reticular structure. Each hook element is inwardly bent and has the upper corner rounded in such a way as to act as a slanted plane for the corresponding plate.

Abstract: A bonded can having a high hot water resistance, which consists of a metal material having both the confronting side edges bonded together by a linear polyamide adhesive through an epoxy-phenolic resin undercoating composition, wherein said epoxy-phenolic resin undercoating composition comprises 50 to 95% by weight of an epoxy resin having a number average molecular weight of 800 to 5500, which is obtained by condensation of an epihalohydrin with bisphenol A, and 5 to 50% by weight of a resol-type phenol-aldehyde resin having a number average molecular weight of 200 to 1000, which is obtained by reacting a mixed phenol comprising 65 to 98% by weight of a dihydric phenol represented by the following general formula: ##STR1## wherein R stands for a bridging group or is a direct bond,and 2 to 35% by weight of a monohydric phenol, with an aldehyde in the presence of a basic catalyst.This bonded can can resist retort sterilization conducted at 122.degree. to 135.degree. C.

Abstract: A seal for use in a floating roof storage tank. The seal closes the annular space defined between the floating roof and the wall of the storage tank. The seal includes a single, unitary length of pliable material which is folded about the longitudinal axis thereof to superpose the side edges thereof. The end edges are closed and the superposed side edges are attached to the floating roof. A scuffband is attached to the floating roof to be interposed between the envelope and the tank wall, and fluent material can be placed into the envelope when the seal is in situ. A method of forming the seal is disclosed, as is a secondary sealing means.

Abstract: A valved closure for a pressure vessel having an upstanding filling neck with a side opening and a retaining flange, a cap-like adaptor in sealing engagement with the neck and removably retained in interfitting relation with the flange, and open insert in sealing relation within the adaptor and extending spacedly into the neck to sealingly engage the vessel top wall and combine with the neck to define an annular chamber, a rotary valve element seated on the insert and resiliently urged toward sealing engagement therewith, and one-way inlet and outlet valves for passing fluid at predetermined pressures in one direction from the vessel outwardly through the neck side passageway and in the other direction through the neck side passageway into the vessel.

Abstract: There is disclosed a composite label web, method of making a composite label web and method of using a composite label web. The composite label web is fed toward a delaminator at which the supporting material for the label is caused to undergo a sharp change in direction. The supporting material is provided with two columns of slits or cuts means. The slits are disposed at longitudinally spaced apart locations, and the slits of one column are laterally offset from the slits of the other column.

Abstract: An apparatus in which particles are advanced from a storage container through a tube having a plurality of apertures therein. The particles are moved along the tube by paddles secured to a shaft so as to be discharged through the apertures in the tube. The shaft is mounted reciprocably and rotatably within the tube. In this manner, the paddles engage the particles during its forward movement while being spaced therefrom during the return to its initial position.

Abstract: A one way beer barrel dispensing support is provided to facilitate dispensing a beverage from the barrel by gravity flow. The support has a circular area on its upper surface for receiving the bottom end of a beverage barrel. A conduit is mounted in said circular area and has an inlet which enters the barrel when the barrel is placed on the support. The end of the conduit remote from the inlet has a valved spigot to control dispensing.

Abstract: A device for mixing and dispensing a flow of liquid concentrated beverage ingredient from a constant volume pump with a pressurized diluent supplied from a source at a preselected flow rate through a flow control device. Diluent flow and liquid concentrate flow intersect and converge into a common fluid passageway which, in turn, flows into a fluid chamber formed by a housing. A tubular spout containing first and second restrictive orifices extends into the chamber formed by the housing and is sealed thereto by a pair of seal rings. The tubular spout can be rotated to a first or second position dependent upon the consistency of the liquid concentrate desired to be dispensed, thereby selectively permitting fluid to flow through the first orifice or both orifices. The unmixed diluent and liquid concentrate in the fluid chamber flow through the orifices and are mixed therein resulting in a homogeneous and uniformly mixed beverage.

Abstract: There is disclosed a non-throttling, anti-leak, manually reciprocated, plunger pump for attachment to a consumer-type liquid dispensing container to provide drip-free dispensing of liquid therefrom. The pump has a hollow-stemmed skirted plunger which is reciprocable in a pump chamber to draw liquid through an inlet into the chamber from a container, and to discharge it from the chamber to atmosphere through the hollow stem of the plunger. A check valve is positioned in the chamber inlet to allow liquid to enter but prevent its return flow. A differential force-actuated control element is nested in the plunger, for reciprocation therewith but having capability for axial movement independently thereof. The control element includes valve means for blocking discharge through the plunger stem and the valve is normally biased to blocking position.

Abstract: A feed cup mechanism, of the type generally used in grain drills, includes interchangeable feed wheels of various seed metering circumferential surfaces, of various tooth sizes or surface irregularities, and of various thicknesses. Interchangeable spacers of various thicknesses and of various peripheral sizes complement respective ones of the feed wheels to provide a metering passage having a suitable radial thickness for a particular type of seed and having a suitable width for metering a suitable quantity of seed. A pivoted seal is provided which cooperates with the various sizes of the feed wheels and with complementary ones of the spacers to prevent seed from passing from a receiving opening to a discharge spout except through the metering passage. Optionally, the pivoted seal is oscillated to agitate the incoming seed and thereby to provide more uniform metering of the seed.BACKGROUND OF THE INVENTION1.

Abstract: A valve device for metallurgical containers includes an electric circuit formed by two electrodes opening out into the molten metal at the tapping point. The electric circuit measures the resistive voltage drop across the molten metal at the tapping point to determine the slag content in the tap stream by changes in the measured resistive voltage drop. The rate of tapping of the melt can be controlled simultaneously along with the indication of the presence of slag in the tap stream.

Abstract: An upright apparatus for heating and conditioning shirts, blouses, jackets and leisure top clothing or garments has a hot-air-supplying, supporting and positioning base part on which an upright, tubular steamer assembly having inner and outer tube element pairs is operatively positioned. A steam supply and recycling system is connected to inner tubes of the pairs in such a manner to continuously indirectly apply heat along outer tubes of the pairs within a garment conditioning chamber defined by an upwardly extending, garment-supporting, permeable bag; dry, high pressure steam is supplied to the outer tubes to periodically directly apply bursts of hot steam within the chamber. To enable a maximum utilization of the heated steam as supplied from a source, such as a boiler, the output from the tube assembly is passed through an air heating heat exchanger positioned in the base part before it is returned to the boiler.

Abstract: A pneumatic brake device for use in electrostatic copier devices to impart a drag to paper moving through the device. The brake device includes a housing having a perforated suction surface functioning as a brake surface. In order to reduce suction loss when only a portion of the brake surface is covered by the paper sheet, various means are disclosed for limiting or preventing airflow through portions of the brake surface not covered by the paper.

Abstract: An aluminum-silicon base brazing alloy contains between 4 and 20 percent by weight of silicon and between 0.0001 and 1.0 percent by weight, preferably between 0.005 and 0.1 percent by weight, of at least one of the elements sodium, potassium and lithium. Optionally, the brazing alloy may further include between 0.01 and 10 percent by weight, preferably between 0.05 and 2 percent by weight, of at least one of the elements bismuth, strontium, barium and antimony as well as between 0.00001 and 1.0 percent by weight, preferably between 0.0002 and 0.1 percent by weight, of beryllium. The remainder of the alloy consists essentially of aluminum and impurities conditioned by production of the brazing alloy. The alloy is used for the fluxless brazing of aluminum-containing articles in substantially non-oxidizing atmospheres.

Abstract: A hydraulic push drive for pusher centrifuges, having a rotating body with a cylindrical bore. The rotating body is provided with a piston rod and piston body therein. A rotary control valve is disposed in the rotating body. The rotary control valve is driven by a hydraulic motor and controls the application of pressure. A valve is slideably mounted in a coaxial bore in the piston rod in order to control the stroke center of the piston by pulse duration modulation of a controlled leakage flow.

Abstract: In my U.S. Pat. No. 4,054,246, a double-walled structure collects solar heat with air as the heat transfer medium, which heat is stored in subterranean gravel pits. In the present invention, (1) the design of the gravel pits is improved, (2) the efficiency of the solar collectors is improved, whereby needed collection area is reduced, (3) seepage into the pits is minimized, and (4) novel modes of operation using ambient air are disclosed.

Abstract: A system for delivering a siliceous matrix material and selected dopants to an oxidizing reaction flame or the like. Each constituent is maintained in liquified form and transferred by means of an individually controlled metering pump to a nebulizing stage then passed to a burner or the like from which the materials are converted into appropriate soots. The soots are then applied to a starting member which is subsequently subjected to heat to fuse it into a drawing blank.

Abstract: A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface.

Abstract: The vane structure fits within a side opening of an aircraft jet engine normally covered by a pivoted clam shell arrangement. When the clam shell arrangement is actuated, it swings from the side opening in a direction to intercept thrust gases normally passing rearwardly of the engine and direct the gases laterally out of the side opening, the vane structure directing the gases upwardly and forwardly to provide a reverse thrust. The vane structure itself includes a number of beams lying in parallel vertical planes and a number of vanes in the form of continuous strips extending transversely to the direction of the beams, the beams having slots through which the vanes pass to define an egg crate like interlocked grid structure. The vanes are tilted forwardly slightly relative to the vertical to provide the forward component of gas movement creating the reverse thrust.

Abstract: A sprinkler comprises a body defining a hollow, generally cylindrical interior, a liquor inlet to the interior, and a liquid outlet from the interior which in use is located above the inlet. A member is located in the interior so as to be rotated when a liquid under pressure enters the inlet.