Abstract: A firearm having a receiver and a changeable barrel releasably connected to the receiver. A sight mounting member integrally connected to the barrel forward of the receiver extends for some distance in a rearward direction above the receiver and carries a telescopic sight. The barrel, sight mounting member and telescopic sight are removable from and assembled with the receiver as a unit. The sight mounting member also carries an adjustable open rear sight which cooperates with a front sight mounted in fixed position at the forward end of the barrel.

Abstract: An ice fishing device for jigging a fishing line includes a support having a housing attached to its upper end. An electric motor having an output shaft is positioned within the housing and a cam disc is secured to the output shaft of the electric motor. A cam element for the cam disc engages a socket member pivotally mounted on the housing. A reel having a fishing line wound thereon is mounted on the support, and the fishing line is supported by a rod which projects into the socket member. A switch assembly is actuated by the reel and energizes a signal light when the reel is unwound by a pulling force. The cam element on the cam disc imparts a vertical jigging movement to the socket member and rod when the electric motor is energized.

Abstract: A braided fishing line leader comprises a plurality of filaments each having a diameter in the order of micrometer and being interwoven into a hollow braided tube progressively reducing in diameter from a trailing end to a leading end thereof. The filaments include nylon threads interwoven with copper threads to increase density of the leader.

Abstract: A trap assembly designed to catch and maintain birds, preferably pigeons, within a storage space of the trap assembly without injuring or harming the birds during the trapping or storing procedure. A closure and entrance of the assembly are cooperatively structured to allow passage of a bird through the entrance and into engagement with the closure element which will be displaced upon such engagement into a non-covering relation to the entrance allowing the bird to pass therethrough but preventing any bird collected within the storage space to exit the entrance thereof.

Abstract: An animal trap is disclosed which includes a substantially planar baseboard. A first generally U-shaped jaw member is provided which has at least one free end thereof pivotally mounted to the baseboard about a pivot axis substantially parallel to the plane of the baseboard surface. A second generally U-shaped jaw member is provided which has at least one free end thereof pivotally mounted to the baseboard about the pivot axis. A spring is provided which cooperates between the baseboard and the first and second jaw members for urging the jaw members from the set position to the sprung position in which cross-bar section of the first jaw member engages the baseboard on one side of the pivot axis. The U-shaped second jaw member is larger in size than the first U-shaped jaw member and includes a bag extending between the parallel legs thereof. When the trap is in the set position the outer surface of the bag is adjacent to the baseboard and the inner surface of the bag is adjacent the first jaw member.

Abstract: Described herein is an apparatus for a plant training stake and a method for training a plant to grow upright using said plant training stake. A tension means attached at one end to a weight and the other end to a plant maintains a uniform tension automatically adjusting for the growth of the plant by causing downward movement of the weight in a member inserted into planting media.

Abstract: Novel methods and compositions are provided for the delivery of botanic seeds to an environment for growth and development. Seeds are combined with beneficial adjuvants in an encapsulating, saturated hydrogel matrix which provides a system for the simultaneous delivery of seeds and adjuvants.

Abstract: A plant hanger suitable for attaching to the rim of an upwardly positioned flower pot is disclosed. The plant hanger includes generally a plurality of strong, flexible, similar members, each of which terminates upwardly in an upper pot engaging hook. Each of the plurality of members terminates downwardly in a member interconnector of suitable configuration to retain a lower pot support therein. The plant hanger can be easily connected to an upper positioned pot by engaging rim portions of the upper pot with member connected hooks. When properly installed, the plant hanger member interconnector is positioned below and in axial alignment with the upper positioned pot to receive and support the hanger of a lower positioned pot.

Abstract: A modular and stackable planter is provided which forms a botanically integrated unit for growing plants. The sections are generally cylindrical, but each section of the planter includes a plurality of radially-extending wall surfaces at its upper end and a plurality of corresponding radially-recessed surfaces at its lower end. The surfaces at the upper and lower ends are peripherally offset from one another to, together, complementarily define plant-receiving receptacles. The sections are dimensioned so that the base of one engages the top of the one below it; and provision is made for vertical water transmission throughout the stack of units and for root aeration.

Abstract: A gate operator for lifting a gate about a horizontal pivot at a lower proximate corner thereof about a 90.degree. arc in the plane of the gate and having spring means for balancing and holding the gate weightless in all positions of its arcuate movement, permitting the gate to be moved between fully opened and closed positions manually or with minimum applied force, and preferrably comprising crank-like means operating through a raceway on the face of a driving wheel, the gate operator having a position locking the gate in its closed position against vertical forces exerted at the gate for opening same; and a safety snubber controlling the speed of the gate in either opening or closing movement.

Abstract: An extruded resin jamb liner (10) has a spring cover (12) with a longitudinal slit (15) in which a platform (20) moves for balancing a sash. Platform (20) is a single piece resin part having a spring connector (30) inside the spring cover, a neck (24) extending through the slit, and a sash support (25) outside the spring cover. The platform also has inside and outside friction surfaces (26 and 27) respectively engaging inward and outward facing surfaces of the spring cover on opposite sides of the slit to provide a load-related frictional resistance against vertical movement of the platform in the slit.

Abstract: A carriage comprises a base mounted on rollers for movement of the carriage under manual guidance over a work surface, a platform supported above the base on coil springs held in place by bolts fixed to the base and extending up through the springs and the platform, a tool mount slidable along the platform parallel to an edge of the platform and adapted to have seated therein an electric polishing tool with its polishing wheel overhanging the edge of the platform above the work surface, and nuts selectively threadable on the bolts against the platform to compress or relax the springs so as to lower or raise the platform and the tool relative to the base and the work surface.

Abstract: A mechanism for mounting a sanding disk to the spindle of a portable right-angled grinder that will allow the connection to be released without extra tools. The mechanism consists essentially of a hollow spindle (18), of a tensioning anchor (22) that is accommodated inside the spindle (18) such that it can slide back and forth axially subject to an activating mechanism (54) but cannot rotate, and of two flanges that accommodate the sanding disk (28) between them, one of which, a mating flange that constitutes a support (20), is rigidly secured to the spindle, and the other of which, the tensioning flange (26), is loosely secured to the tensioning anchor (22). Between mutually facing demarcating surfaces (34 & 36) of the tensioning anchor (22) and the spindle (18) is a space (39) that communicates with another space (44) in the tensioning anchor (22). The spaces (39 & 44) are full of a plastic material (40) that can transmit force hydraulically.

Abstract: A device for the machining of the shell surfaces of the drying cylinders of a paper machine and particularly for the grinding thereof, which device comprises a carriage (1) which is displaceable in the direction of the length of the drying cylinders and to which a grinder is attached. In order that the grinding could be carried out easily and rapidly and with only a short downtime of the paper machine, the carriage of the device is formed by a frame carriage (1) which is provided with supporting elements (13) for the support thereof both against a drying cylinder (9) of the paper machine and against a second cylinder (10) of the paper machine so that it is positioned between said cylinders (9, 10) when the device is in operation. There are preferably eight supporting elements (13, 14) provided, four of which are arranged to be positioned against the drying cylinder (9) to be ground and the other four against the second cylinder (10).

Abstract: A rail grinder vehicle includes a series of connections between grinders and a chassis frame such that pairs of the grinders may be operated in an independent mode allowing separate movement and in wave control mode wherein the pair of grinders are coupled together for movement in unison. The grinders are supported from a K frame which is pivotably mounted at the center of the vehicle for stability. Each grinder is mounted upon a grinder support element and associated structure such that the grind stone of the grinder may be positioned relative to the rail and will automatically and simultaneously orient the grinding face of the grind stone at a proper angle relative to the rail corresponding to the desired position. A control system including a hydraulic system which is controlled by an electrical system is used to operate the grinders and maintain the individual grind motors at a constant power during grinding in an independent mode.

Abstract: A gypsum board sanding device which is adapted to be coupled to a vacuum cleaner for significantly reducing the dust problem created when sanding the joint cement. A sanding paddle is provided which is adapted to support a sheet of sandpaper, the paddle having a plurality of pedestals defining air passages between the non-abrasive side of the sandpaper and the base from which the pedestals project. A hollow tubular handle is joined to the paddle with the interior opening of the handle communicating with a hole formed through the thickness dimension of the paddle. Means are provided for fastening a conventional vacuum cleaner to the handle whereby dust and other debris generated during the sanding operation is drawn from the periphery of the sanding paddle into a dust collection reservoir.

Abstract: An abrasive scouring block is provided for cleaning rubber, such as the sidewalls of automobile tires, by rubbing the block against the surface of the rubber while rinsing it with water.

Abstract: An automatic buffing machine and method for automatically buffing a golf ball are disclosed. The golf ball is oriented such that the flash ring is in a predetermined plane and then the flash ring is removed. The golf ball matrix is preferably utilized to orient the golf ball and both cutting and sanding are preferably used to remove the flash ring.

Abstract: A make-shift shelter has a hexagonal shape and can be errected and dismantled quickly and efficiently without tools. The various pieces of material that make up the shelter are flat and are easily stored. In one embodiment of the invention, the shelter is constructed from three sheets of plywood measuring approximately four feet by eight feet. Two tapered sides and a rectangular-shaped piece for the roof are formed from each sheet. The sides and roof pieces contain suitable openings so that a polypropylene rope can be threaded through said openings to hold the various pieces together to form the shelter.

Abstract: A method and apparatus for insitu reinforcement of a section of a wooden pole at a position below the groundline is disclosed. The method includes the steps of forming a cavity around the pole, mounting an elongated sleeve around the pole to define an annular space with the pole, and filling the space with a reinforcing material. The improved portion of the method includes supporting the sleeve above the groundline while mounting the same around the pole and securing the lower end against radial expansion, lowering the sleeve until it extends over the section to be reinforced, and filling the sleeve with a bonding agent, such as a foaming epoxy resin system, which bonds the sleeve to the pole over the length of the section to be reinforced. Preferably the upper end of the sleeve is contracted and sealed against the pole.

Abstract: A lining for the interior of an automotive vehicle, comprising a unitary foundation panel partitioned into at least two contiguous surface areas by a groove penetrating into the surface. Webs of materials different from each other are laminated to the areas, and a seam is provided between them by tucking portions thereof into the groove.

Abstract: A structure adopted to accommodate mobile homes set into a second floor terrace position that provides ground floor garage area and private family space below the mobile home position on the second floor terrace, with such structure being made to accept and use temporary and portable ramps that simplify and reduce the cost of putting mobile homes in and out of the structure.

Abstract: A building wall comprises channel-shaped uprights and metal-clad insulating panels arranged in alternating sequence so that the interior faces of the panels form parts of the interior walls of the building while the exterior faces of the panels form parts of the exterior walls of the building. Flanges are formed along the vertical edges of the sheet metal outer faces of the panels. These flanges extend into the open sides of the channel-shaped uprights and are situated in facing relationship with the inner faces of the uprights. Vertically aligned lances, struck out from the opposed plates of the channel-shaped uprights, are engaged with L-shaped slots of the flanges of the panels. The lances have camming surfaces which tightly urge the flanges of the panels against the inner faces of the side plates of the uprights so that the flanges and uprights reinforce each other to form a strong, rigid wall structure.

Abstract: A wall or other integrated structure is formed from a series of blocks or other building units utilizing double ended fasteners having two ends facing in opposite directions which are driven into opposed faces of adjacent blocks to retain them against relative displacement. The fasteners may also furnction to attach connector straps or members to the blocks, with those straps or members extending between different blocks to secure them in place. The individual fasteners may have two pointed nail type ends projecting in opposite directions, or may have one threaded end and one unthreaded end. In some instances, one of the ends of the fastener may be detachable from the other, to be connectible thereto after that other end has been screwed or otherwise driven into one of the blocks.

Abstract: A suspension ceiling grid system having grid runners connected at intersections including a through-runner and opposed runner ends connected together and to the through-runner on opposite sides of the through-runner. Each runner end is provided with an end connector which extends through an opening in the web of the through-runner. Each connector is provided with a first-end-in-lock which connects the connector to the through-runner itself and a dual connector-to-connector lock which interconnects the two connectors at the intersection. The first-end-in-lock provides opposed lateral projections which engage the remote side of the web of the through-runner beyond the ends of the opening therein. The connectors may be disassembled from an intersection without the need for tools and without damage to either the connector or the through-runner opening. Further, an intersection can be disassembled and subsequently reassembled in a trapped module condition.

Abstract: A fireproof construction element has a plurality of integrally interconnected and parallel profile beams each having a longitudinally extending outer flange defining an outer surface and a longitudinally extending web extending inwardly from the flange. The webs are each formed adjacent the flange with a row of at least generally longitudinally extending, elongated, and laterally throughgoing slots. The beams form a plurality of outwardly open channels laterally bounded by the flanges. Respective masses of concrete substantially fill the channels between the webs and inward of the flanges and have outer surfaces contiguous with the outer surfaces of the beam flanges. The slots can be provided in two rows with the slots of one row overlapping and staggered with the rows of the other row.

Abstract: An arrangement for wiping down a web wrapped on a load includes a wiper support; and a wiper including at least one strip having two ends, a thickness, a width substantially greater than the thickness, and a length extending between the two ends, at least one end secured to the wiper support, the strip extending from the wiper support in a direction along the length of the strip and being flexible in a direction generally parallel to the thickness of the strip for wiping down the web wrapped on the load by relative movement between the wiper support and the web in said direction.

Abstract: An apparatus for attaching fitments a web of film. The apparatus includes an elongated tube, the web of film being passed around at least a portion of the elongated tube. A film puncher and remover for punching at least one hole in the web of film and removing the resultant slug is provided. The web of film passes between the elongated tube and the film puncher and remover. The apparatus also includes a fitment feed member for feeding a fitment from outside the elongated tube to a fitment pick-up position inside the elongated tube. The elongated tube also includes a fitment moving member for moving the fitment from the fitment pick-up position to a fitment attachment position. The fitment attachment position is located so that a portion of the fitment is received by the hole in the web of film. The apparatus also includes a sealer for welding the film to the fitment.

Abstract: A method and apparatus for making gas flushed packages in a vacuum chamber machine which includes a bag mouth clamp spaced apart form seal bars disposed to transversely seal the bag neck. A vertically moveable piercing blade and nozzle penetrate the upper wall of the bag neck as the chamber pressure is lowered and the bag "balloons" thereby causing the upper and lower neck walls to separate. Once the bag is pierced and the residual air escapes, a predetermined amount of gas is injected and then the bag is sealed. If desired, sufficient gas can be injected to make a pillow pack.

Abstract: Successive block-shaped objects of a continuously moving row of objects are draped into two continuously moving webs by causing one of the webs to advance in a horizontal plane below the moving row of objects so that the marginal portions of the one web extend laterally beyond the objects. The other web is converted into an inverted U-shaped body which overlies three sides of each object and has two laterally outwardly extending marginal portions which overlie and are thereupon welded to the respective marginal portions of the one web. Conversion of the other web into the inverted U-shaped body can take place in several successive stages.

Abstract: A plastic bag is formed, filled, sealed and separated from continuous webs of plastic material. The webs pass downwardly between complementary U-shaped heat sealing jaws that reciprocate and cooperate to provide seams which form a pocket that is closed after it has been filled from above and indexed downwardly. The top seam of one pocket is formed simultaneously with the bottom seam of an adjacent pocket and a weakened line of juncture is provided therebetween. Grippers carried on the heat sealing jaws engage opposite sides of the plastic webs above the location of the top seam of the filled pocket and cooperate with a separator that tensions the webs along the weakened line to rupture the filled pocket from the webs while the webs are still in a thermally weakened condition.

Abstract: A manufacturing and packaging arrangement for cards, especially playing cards, includes a sheet cutting and card stacking station, two corner punching stations, and a packaging stations which are connected with one another by a conveyor arrangement that is driven by a motor. In the cutting and stacking station, printed sheets are cut up into individual cards and those cards which belong to respective sets are assembled into respective card stacks which are then discharged from the cutting and stacking station by a discharge arrangement and transferred by a transfer conveyor to an intermittently driven main conveyor. At the main conveyor, the individual card stacks are engaged by entraining fingers which extend into a transporting channel, and are intermittently transported longitudinally of the channel to the corner punching stations.

Abstract: A machine for apportioning and packaging quantities of bulky particulate product has a weighing device (11), a conveying device (12) and a packing device (13). In order to ensure that the weighed product quantities (10) have approximately the same volume, a level sensor (32, 33), a compressing member (46) and a secondary apportioning device (50) are assigned to the conveying device. When the volume of product quantities is too large it is compressed, wherein bulky portions of the product break; when the volume is too small, a small quantity of product is added to the main quantity. In addition, an addition device (52), which supplies addition articles (53), is assigned to the conveying device.

Abstract: The invention discloses a novel type of bag threading device to be used in an automatic bag loading apparatus for rotary bagging machines, and substantially comprises a stationary vertical support frame (10) holding a swinging arm (12) bearing at the other end the pincers (13) associated with a system of connecting rod (14) and crank (19) having the function of rotating the pincers (13) in order to position them in the picking phase axially aligned with the bag (3) to be picked and subsequently with the nozzle (2) of the bagging machine, said arm being able to carry out an angular displacement between to bag positioning device (6) and the nozzle (2) of the rotary bagging machine (1) to be fed in that moment, effected by a cam (15) in order to carry out its angular displacement, acting on a roller (17) arranged on said swinging arm (12), the cam (15) being rotated around its shaft by a motor with reduction unit, the cam shaft and that of the bagging machine being rotated in a synchronous way through known mean

Abstract: A suction harvester for aquatic plants and animals comprising a variable rate centrifugal pump capable of handling solids mounted on a vessel and connected to a manoeuvrable nozzle. The operator can control the placement of the nozzle and degree of suction applied by the pump to selectively harvest weed or algal mats, etc. from the bed of the water body. A location or manoeuvring system for the vessel in shallow water is also described, comprising spiked wheels driven by independent motors on the end of adjustable arms, the spikes engaging the bed of the water body for accurate location and propulsion with minimum disturbance.

Abstract: A rotary line trimmer having a rotary head from which a cutting line is fed from a drive head in response to the axial shifting of a flexible drive shaft. The drive shaft rotatingly drives the head to exert a cutting action, and additionally can cause an incremental motion within the head itself whereby to feed the line from the head.

Abstract: A mower deck assembly which inverts to enable servicing of the mower blade and underside of the deck from above without removal of the assembly from the power unit. Deck support arms are pivotally connected to the power unit and deck and can be elevated to permit tilting of the deck beyond a perpendicular to the terrain. Terrain engaging deck support outboard of the deck pivot connections develop a gravity moment retaining the tilted position when they are engaged with terrain outboard of the pivot connections. Drive coupling is maintained by a continuous loop link between drive shafts coaxial with the pivot connections at the drive unit and at the deck.

Abstract: A rotary lawn mower bar with non-metallic replaceable cutting and sweeping components. The rotary bar has L-shaped retaining arms each of which passes through a central channel in a replaceable component. The replaceable components can either cut vegetation, or can be used for blowing or sweeping purposes.

Abstract: A ply-twisted crimped continuous filament yarn having at least 40 twist reversals per meter and particularly suited for freize style carpets and the process for making the yarn is disclosed.

Abstract: An invention for spinning with a balloon controlled by a checking device is disclosed. The invention is set in rotation by a spindle by means of a yarn, comprising the arrangement of a segment of free yarn constituting a balloon having a controlled and constant height and diameter of base and also comprising the arrangement of a guided segment of yarn downstream of the segment constituting the balloon. Also, the invention is for spinning with a rotary balloon-checking device, comprising a rotary checking device positioned about a yarn package and a tube and having a rotatably supported upper portion and a lower portion performing the function of distributing the yarn on the yarn package, wherein the checking device is open at its upper end and has a pre-determined diameter to contact the yarn.

Abstract: An apparatus for making a yarn (6) comprises two juxtaposed, closely spaced apart twisting drums (1, 2), which rotate in the same sense and between themselves define a generally triangular twisting space (4), to which a vacuum is applied, fiber-feeding means and withdrawing means (7) for withdrawing the yarn (6) which has been formed in that the fibers fed to said twisting space have been twisted together in said twisting space.

Abstract: Non-metallic rigging chain formed with a plurality of linked flexible loops. Each loop has a core which consists of a continuous strand of non-metallic materially coiled upon itself. The coiled core material is sheathed within a woven outer fabric. Except for the two terminal loops of each chain, one loop is formed by coiling a continous strand of core material in linked relation within a pair of completed loops. The length of each chain is determined by the diameter of its loops and the number of loops linked together.

Abstract: In a power generation process using a gas turbine for conversion of the energy of gas which is produced by the gasification of a fossil carbon-bearing material such as brown coal, the gas is initially cleaned of dust and optionally desulfurised in the hot condition. The gas is then passed to a combustion chamber in which the temperature of the gas is increased by partial reaction of the gas with air and/or oxygen to a temperature of from 1000.degree. to 1500.degree. before the gas is passed through a catalytic fixed bed reactor arranged upstream of the gas turbine combustion chamber. The combustion chamber in which the gas temperature is increased, the fixed bed reactor and the gas turbine combustion chamber may be combined. The fixed bed reactor contains a nickel-bearing catalyst which, at elevated temperatures, is resistant to ageing and resistant to sulfur and compounds thereof.

Abstract: In a turbine plant having a starter housed in a starter chamber containing splash lubrication oil bath, the plant lubrication circuit is arranged to feed clean oil to a non-polluting chamber disposed intermediate the starter chamber and the chamber of the power take-off unit of the plant. The partition separating the starter chamber and the intermediate chamber has at least one through passage so that the oil baths of the two chambers are in permanent communication, and the passage is fitted with a filtering strainer to prevent contaminants entering the intermediate chamber, and hence the plant lubrication circuit, from the starter chamber. The partition between the intermediate chamber and the chamber of the power take-off unit is provided with an overflow passage so that excess oil in the intermediate chamber flows freely into the power take-off chamber.

Abstract: In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an actual air-fuel ratio is adjusted in accordance with the outputs of the upstream-side and downstream-side air-fuel ratio sensors including an air-fuel ratio correction amount. Also, a learning correction amount is calculated so that an integration amount of the air-fuel ratio correction amount is brought close to a reference value. The actual air-fuel ratio is further adjusted in accordance with the learning correction amount.

Abstract: An exhaust manifold for attachment to an engine having a plurality of exhaust ports is provided. The exhaust manifold includes an exhaust conduit that is in fluid communication with selected exhaust ports, with the exhaust conduit being formed to include separate primary and auxiliary outlet openings. The exhaust manifold also includes a tuning tube that is formed to include an inlet opening that is in acoustic communication with the auxiliary outlet opening, and an outlet opening. The exhaust manifold also has a chamber for providing a static volume that is in acoustic communication with the outlet opening of the tuning tube.

Abstract: A control system for the boom and bucket operation system on a front end loader that includes an unloader valve responsive to pilot valve pressure to bypass hydraulic fluid pumped by an auxiliary pump to the reservoir while maintaining the primary pump supply to a loader valve which supplies pressure to the boom and bucket cylinders in response to the operation of pilot valves. The unloader valve bypasses the auxiliary pump flow when the pressure is below a predetermined value and when the pressure is above a second higher predetermined value.

Abstract: A hydraulic pressure system comprising a hydraulic pump, a hydraulic motor, a pair of main hydraulic pressure lines connecting the pump and the motor so as to form a closed loop or circuit, a booster line for supplying a hydraulic pressure from a booster pump to the low pressure side of the closed circuit, a pilot line for taking out a pilot pressure from the high pressure side of the circuit to operate an actuator for controlling the hydraulic pump and the hydraulic motor, and a boost pressure regulator for causing the pressure in the booster line to rise only when the differential pressure between the two main hydraulic pressure lines of the closed circuit becomes lower than a predetermined level.

Abstract: A hydraulic operated control system for remotely operating a walk-behind soil compactor. A remotely operated three-position valve is connected to the pressure line of the hydraulic system of the soil compactor and serves to control the flow of hydraulic fluid to opposite ends of a hydraulic cylinder unit that is operably connected to a hydraulic pump which operates the speed and direction control for the compactor. The cylinder unit includes a piston that is slidable within the cylinder and the piston is biased to a neutral position by springs. Through remote operation of the valve, hydraulic fluid will be directed to either end of the cylinder to provide direction and speed control for the compactor. A deadman switch is located on the remote control panel and manual release of the deadman switch will open the hydraulic circuit between the opposite ends of the cylinder to prevent fluid from being directed to the cylinder and will enable the springs to return the cylinder to a neutral no speed position.

Abstract: A pressure-compensated flow-control valve with an adjustable limiting device controls the maximum speed of a fluid motor and eliminates an additional valving element found in prior art device. The flow control valve includes a flow limiting throttle opening integral with the flow control spool. The spool can be selectively rotated to adjust the effective size of the throttle opening thereby limiting flow through the valve. The spool establishes a constant rate of flow determined by the throttle opening or a directional control valve. By incorporation of the flow limiting function within the flow control spool, the overall cost and complexity of the pressure compensated flow control valve is reduced.