Abstract: The invention discloses a method and apparatus for cooling hot foundry sand. The method includes the step of adding water to the hot sand with the quantity of water being related to the Btu content of the sand, vibrating the sand/water mix in a closed container, evacuating the container to evaporate the water and cool the sand, and then removing the cooled sand from the container. Apparatus for carrying out the foregoing steps is also disclosed.

Abstract: What is disclosed is an ice maker and dispenser for an area that is subject to microbiological contamination, such as a hospital, and including an ice manufacturing and an ice dumping unit having the improvement comprising a circular ice container and stirrer with an aperture through which ice shapes can be dropped, a cylindrical chute disclosed below the aperture for conveying the ice shapes outwardly through a door, a cantilever corkscrew impeller for moving the ice shapes along the chute and motors and drives for effecting rotation of the stirrer in the ice container and the impeller for moving the ice exteriorly of the door. The ice chute is cylindrical, smooth and easily cleaned and sterilized when the corkscrew impeller is removed. The corkscrew impeller is easily removed by way of a quick disconnect to facilitate its being cleaned and sterilized. A short cylindrical chute is provided upwardly into the ice container so as to be easily cleaned and sterilized.

Abstract: In lieu of passing all air to be conditioned over an evaporator coil which is cold enough to cause a substantial amount of water vapor to condense; only a portion of the air is cooled to this extent. The remaining air is cooled to a higher temperature (at which negligible water vapor condenses). The total work to recompress the vaporized refrigerant is thereby reduced.

Abstract: This invention relates to a wash unit for dry cleaners and the like. According to the invention the wash unit includes a drum which is rotated by utilizing part of the energy of the circulating water, which passes through the outer perforated wall of the drum.

Abstract: A symmetrical opposed-motion basket design is provided for an orbital clothes washer. The symmetrical opposed-motion basket is structured to cause clothes in one portion of the basket to tend to move clockwise, while clothes in another portion of the basket tend to move counter-clockwise. The center post and outer wall each have a relatively rough surface and the basket bottom wall has a relatively smooth surface comprising two concentric rings, one of which slopes continuously upwardly from the outer wall and the other of which slopes continuously upwardly from the inner wall to a point of intersection of the two rings. This structure enhances mixing and turbulence within the clothes load during the orbital cycles of the clothes washer.

Abstract: Utility type locks have a lock body including a head and a shank, a plunger axially slidably received in the lock body, and locking balls forced outwardly from the shank or retracted within the shank depending upon the position of the plunger. A coil spring biases the plunger away from the head of the lock, and is dimensioned such that it must be fully compressed for the plunger to permit the balls to retract. The plunger face defines a shallow annular groove surrounding a center post which resists picking tools. A preload bushing surrounds the plunger with a deformable lip engaging a shoulder of the plunger. The preload bushing holds the utility lock open with the balls retracted, and application of force to the plunger deforms the lip to release the plunger.

Abstract: An apparatus for securing a small computer, or other portable appliance, against theft comprises a case having an open back through which the computer is installed or removed. Guide members in the form of slots are formed in a rear portion of opposite walls of the case for receiving a back plate to cover the opening and thereby secure the computer within the case. An opening formed in the top wall of the case exposes the keyboard and display of the computer. The back plate is locked in the closed position by a key-operated plug type lock. The lock is attached to one end of a hold down cable, the opposite end thereof being secured to a desk top or other stationary object. Thus, the lock simultaneously secures the back plate to the case and retains the case to the stationary object.

Abstract: An electromagnetic device for straightening dents in automotive vehicle bodies and the like comprises a carriage on which is mounted a boom means for positioning an electromagnetic head at selected positions about the sides and top of a vehicle body. Control and power apparatus including electric power and a hydraulic fluid supply are mounted on the carriage, and quickly adjustable brace means are provided to engage the vehicle body adjacent a damaged area for bracing the body against the pull of the magnet.

Abstract: A significantly simplified, rugged attachment is provided for a standard thread rolling machine for quick and easy re-rolling of threaded parts for producing high quality threads. A pressure foot is mounted between an open end of a feed chute and the starting end of a fixed die and is biased toward a confronting movable die for urging a threaded part into mesh with the die surface of the movable die when it is moving toward a rear limit position. Such mesh between the threaded part and movable die is effected before the threaded part is pushed by a starter blade into matched rolling position against a starting end of the fixed die and thereafter the moving die reverses its direction of movement to stroke into a forward limit position to effect precision re-rolling of the previously threaded part to produce a high quality finished part.

Abstract: An improved rectilinear draw machine, effective to directly draw ferrous and non-ferrous materials, is described, which is capable of automatic and continuous control and capable of adjusting the working speed without conveying the drawn material onto outer sensors. The machine comprises drawing sections, each section being formed by a drawing ring, an idle ring coaxial therewith and a compensating arm between the rings. These three elements rotate in the same direction. The lower drawing ring is driven by the driving shaft. A hollow central shaft is fixed to the upper idle ring, which is coaxial with the lower drawing ring, but of lesser diameter. The lower end of the hollow shaft is connected to the central body of an electromagnetic brake. The compensating or balancing arm, located between the lower drawing ring and the upper idle ring, is rigid with a shaft the lower end of which is connected to the inner body of the electromagnetic coupling or coupling.

Abstract: The present invention provides a technique for improving the dimensional accuracy of forged components. Uniformity of like component details is sought and a specific object is to provide a die package for forming closely toleranced appendages integrally with a central disk structure from which the appendages extend.In one effective embodiment incorporating concepts of the present invention, the forging dies include a stationary die 26 and a moveable die 28 which are mounted on a common axis and a plurality of arcuate die segments 30 which are adjacently placed in cylindrical array about the stationary and moveable dies. The arcuate die segments form cavities of the inverse geometry of the appendages to be formed and are interlocked to prevent tilting of the segments in the die package. A collar 40 extends from the stationary die to interlocking engagement with a channel 46 in the inwardly facing surface of each arcuate die segment.

Abstract: A tool to assist in the servicing of a shock absorber wherein the shock absorber is constructed of a pair of aligned gas and liquid filled chambers. Each of the chambers is separated by a movable separator member. Maximum efficiency of the shock absorber is achieved in the locating of a precise volume of gas within the gas chamber and a precise volume of liquid within the liquid chamber. The servicing tool of this invention employs a rod which is to connect with the separator and by observation of the position of the rod with respect to the gauge body, the location of the separator is ascertained even though it is not directly observable.

Abstract: An arrangement for complex diagnosis of internal combustion engines in the course of their operation comprising a control unit, a measuring unit, an operating unit, an evaluation unit and an indication unit, and a transducer for determining parameters such as pressures, vibrations, emitted supersonic signals and temperatures at different positions of the crankshaft and under various engine operating conditions.

Abstract: A circuit incorporated with an antiskid system for testing the operability of the system. A multivibrator may be actuated to energize converter circuitry with a signal indicative of a particular wheel speed. The entire antiskid system is then caused to function as though the vehicle wheels are actually spinning and the vehicle is moving. The major subcircuits of the antiskid system are connected to logic circuitry which senses their operation and produces an output signal to a lamp which is illuminated when the subcircuits are properly operative. When the multivibrator operation is ceased, changes in operation of the various subcircuits is again sensed by the logic circuitry which, if such subcircuits are operating properly, deenergizes the lamp.

Abstract: An apparatus for sensing the pressure of a well fluid in a subsurface wellbore in which a first, elongated tubing is adapted to extend from the surface of the earth to a subsurface location at which the pressure is to be measured, a fluid receiving chamber is disposed on the lower end of the first tubing, a second, elongated tubing, of smaller cross-section than the first, is disposed in the first tubing with its upper end at the surface of the earth and its lower end sealed within the lower end of the first tubing or the upper end of the fluid receiving chamber and is adapted to receive a pressure transmitting fluid and to be placed in fluid communication with the fluid receiving chamber and a pressure responsive closure element closes the lower end of the first tubing, the upper end of the fluid receiving chamber or the lower end of the fluid receiving chamber and is adapted to open at a pressure above the pressure of the well fluid and permit the pressure of the well fluid to be balanced against the pressu

Abstract: A flow rate meter, especially for measuring the air flow rate in the intake of internal combustion engines, in which a heatable wire is located for exposure to the air stream. A controller maintains the temperature or resistance of the heated wire constant, thereby permitting a determination of the air flow from the current required in the control process. In order to prevent internal stresses in the wire due to varying expansion, the two ends of the wire are firmly mounted in a support structure while at least one intermediate part is looped loosely around an intermediate support point. In order to prevent uncontrollable heat transfer from the loop to the third support point, the wire is electrically joined at the point where the parts of the wire forming the loop cross one another, thereby preventing electrical current from flowing in the loop. Furthermore, the sensitive parts of the wire lie in the main flow and do not closely approach the wall of the structure.

Abstract: A supply pipe having its inlet end adapted for communication with a source of a liquid under pressure in excess of that of the ambient medium and its outlet end communicating via a nozzle with a shroud adapted to communicate with a vessel containing therein a fluid, at a level being monitored. The variation of the hydrodynamic condition of the flow of the liquid through the nozzle is registered dependent on the mixing of this liquid flow with the fluid being monitored. The shroud has at least one cross-section of which the ratio of the maximum size of the internal contour to the spacing of this cross-section from the outlet section of the nozzle is less than of 0.35:1. The inlet portion of the shroud is a structure wherein the internal contour of the cross-section of this portion encompasses therein the contour of the outlet section of the nozzle.

Abstract: An automatic grain sampling device including a paddle wheel with paddles rotated by the force of grain on a conveyor against the paddles and a sampling receptacle attached to the paddle wheel, a hopper, apparatus for controlling the size of sample dumped, and proportioner apparatus to control the proportion of the sample retained.

Abstract: A method and apparatus for the quantitative recovery of solids suspended in a fluid from such fluid involving continuous flow centrifugation. Samples of the fluid with the particles suspended therein, are simultaneously pumped from a plurality of source locations into a common chamber wherein they become mixed while being continuously fed thereto. The samples from the mixing chamber flow to a sample splitting chamber from which a portion is diverted to a continuous flow centrifuge and the remaining diverted to waste. The quantity of mixed sample fed to the centrifuge is determined so that the quantity of solids collected in the centrifuge can be related thereto. The apparatus includes a plurality of pump units, each having a water inlet and a water outlet, a sample mixer consisting of a chamber having inlets thereto for receiving the water samples from the pump units.

Abstract: A method and apparatus for the quantitative recovery of solids suspended in a fluid from such fluid involving continuous flow centrifugation. Samples of the fluid with the particles suspended therein, are simultaneously pumped from a plurality of source locations into a common chamber wherein they become mixed while being continuously fed thereto. The samples from the mixing chamber flow to a sample splitting chamber from which a portion is diverted to a continuous flow centrifuge and the remaining diverted to waste. The quantity of mixed sample fed to the centrifuge is determined so that the quantity of solids collected in the centrifuge can be related thereto. The apparatus includes a plurality of pump units, each having a water inlet and a water outlet, a sample mixer consisting of a chamber having inlets thereto for receiving the water samples from the pump units.

Abstract: Apparatus for sampling fluids, i.e. liquids or gases, or both, from a supply source. The apparatus comprises an adapter unit inclusive of a pair of tubular sections, or members, detachably engaged one with the other, each contains communicating inlet and outlet channels, respectively, and each has valve elements for opening and closing the channels. One tubular section of the adapter unit can thus be located at the fluid supply source, and the other adapted for connection to a portable supply container such that, when the valve elements are opened, fluid from the supply source will fill the container and, after the container is filled, the valve elements of the two sections of the adapter unit can be closed to shut off the fluid supply as well as close off fluid communication between the two tubular sections.

Abstract: In detecting, characterizing or studying flaws in work whose surface is irregular by acoustic imaging in which a holographic pattern is produced the irregular surface is scanned by acoustic energy focussed on or near the irregular surface and the reception of the acoustic energy resulting from echoes from flaws is controlled for each scanned elemental area so as to reduce to a negligible magnitude the effects or variations in the acoustical path caused by the irregularties at different elemental areas in accordance with the irregularity at that area. The control may be effected by filling in the depressions in the irregular surface with an acoustic energy absorbing material such as butyl rubber or with a material, such as wax, which is not wetted by the liquid through which the acoustic energy is propagated to the surface.

Abstract: A pair of gears, which form a gear set, are tested by mounting the gears on parallel axis spindles which are located at a fixed center distance. One of the parallel axis spindles is contained in a spindle housing that is rigidly mounted to a massive base. The other gear of the set is contained in a spindle housing which is supported on top of a pair of parallel leaf springs that are connected to the base. The spindle in the spindle housing that is rigidly mounted on the base carries a pulley at its end that is remote from the gear set which is coupled through a drive belt and a second pulley to a drive motor. The spindle in the resiliently mounted spindle housing on the leaf springs is coupled to an eddy current brake at its end which is remote from the gear set. An accelerometer, which is coupled to a conventional electronic output indicator, is mounted on the resiliently mounted spindle to provide indications of the vibrations caused by the gear sets.

Abstract: Echo ranging flaw detecting, characterizing and studying apparatus in which the work is scanned simultaneously by acoustic energy focused at a point from an acoustic-lens transducer and by acoustic energy focused along a line along which it is propagated from a focused-arc transducer. The acoustical echos from the lens transducer are combined with an electrical analog of an acoustical reference wave to produce an acoustical interference pattern which is reconstructed into a holographic display or hologram by a laser beam. The echos from the focused-arc transducer produce a cathode-ray tube display or are stored in a memory.

Abstract: Apparatus for the ultrasonic examination of an object comprises:means for transmitting pulses of ultrasonic energy along a plurality of beams into the object and receiving echoes of the pulses reflected along the beams by acoustic impedance discontinuities within the object, the means directing the beams from a plurality of spaced positions in a single plane relative to the object and along a plurality of beam directions in the single plane at each spaced position;means for forming a first display of information representative of the position of acoustic impedance discontinuities within the object from the echoes received along the plurality of beams;means for selecting a point or region within the object intersected by at least one beam direction from different ones of the spaced positions; andmeans for determining the shift of echoes from the selected point or region received along the beam in each beam direction caused by divergences of the velocity of propagation of ultrasonic energy through the object in

Abstract: An apparatus for pulse-echo ultrasonic examination, particularly in medical diagnostic examination comprised of one or more transducer elements for transmitting divergent pulses of ultrasonic energy into the object under examination and a greater number of transducer elements providing a plurality of received beams for each pulse transmitted.

Abstract: A band of material is formed by plating the material onto a cylindrical cathode sandwiched between a pair of insulating end pieces and is supported in a plating bath spaced a short distance from an anode. The cathode is rotated about its axis to provide uniform, reproducible mass transport to the plating surface. In order to determine the tensile properties of the plated material, the band is removed from the cathode and pulled apart in a tensile machine. During tensile testing, the band is held using a pair of pins and clevis, or it is formed into a strip and gripped in a standard fixture. In order to determine the stress condition of the plated material, the band is cut open and its change in diameter measured.

Abstract: Method and apparatus for measuring mass flow, and particularly the sum or difference in mass flow of distinct streams of flowing materials, wherein a plurality of channels are provided in one or more conduits rotating or oscillating as a common unit with additive streams or a common stream being flowed through the channels in a first direction and subtractive streams being flowed through the channels in an opposite direction, and in which the net Coriolis force imposed upon the conduit unit is measured.

Abstract: A driving wheel for a cycle speedometer which is adapted to engage a driving belt in communication with the cycle speedometer. The driving wheel is attached to the cycle wheel or wheel block by a plurality of radially located resilient hooks.

Abstract: A machine with a central strut, which strut has a center portion first and second end portion, two pairs of flexible bows, each pair comprised of two bows under flexed stress and having first and second ends. The bows are flexed in an arc such that said first and second ends of the bows extend at 90.degree. angles to each other. The first end of each the bows in a pair are fastened to each other in overlapping longitudinal relationship to form a handle for said machine, and the second end of each of said bows are rotatably secured to an end portion of the strut in a manner to prevent lateral or longitudinal movement.The machine converts forces applied in a direction perpendicularly to a plane to a force acting perpendicularly to the same plane but in a direction opposite that of the first force applied. The first force may be applied in the first direction of a single point, or a pair of points, in equal or differing magnitudes.

Abstract: An automatic transmission comprising a plurality of speed-change hydraulic clutches selectively operated in dependence of various speeds separately carried by an input shaft and an output shaft, and wherein working oil is supplied from a hydraulic oil source to the hydraulic clutches through (a) fixed oil passages provided in a casing, (b) conduction pipes arranged in coaxially spaced relation within one another in a central bore in the input shaft and/or the output shaft, and (c) communicating passages formed in the input shaft and/or output shaft and connected to the hydraulic clutches. The conduction pipes are respectively connected at one end with the fixed oil passages in a fixed or pivotal manner and at the other end with the communicating passages with seals arranged between the outer peripheries thereof and the inner periphery of the bore in the shaft.

Abstract: A locking device includes an annular locking face formed on the inner surface of a casing and an annular lockable face opposed to the locking face and provided on a driven member turnably mounted on the casing. The lockable face is movable into pressing contact with the locking face to lock a lever when the lever is rotated and thereby screwed in toward one direction longitudinally thereof. The locking face and the lockable face are operable free of any local uneven wear, while the lever can be locked to the desired position and unlocked therefrom with high reliability at all times.

Abstract: A variable speed transmission system comprising at least two variable ratio gears each comprising two axially spaced torous discs or rotors, one serving as an input and the other as an output between which there is a set of circumferentially spaced drive rollers in frictional rolling contact with part toroidal surfaces on the discs each roller being rotatably mounted in the bearing structure which can tilt about an axis at right angles to the axis of rotation of each roller so as to vary the distances from the gear axis at which the roller engages the two discs respectively thus varying the drive ratio of the gears, the two variable ratio gears having respective inputs include two rotors connected to respective input shafts and respective output shafts the inputs and outputs of the gears being respectively coupled together to operate in parallel and there being common hydraulic fluid supply to each of the variable ratio gears for controlling ratio change means of the respective gears.

Abstract: A planetary transmission having free-floating compound planetary gear elements in which two of the planet gears of each planetary element mesh with a pair of gears co-axial with the transmission axis. The transmission also includes selectively operable clutch and brake means for connecting either of said pair of coaxial gears to the transmission output while the other of said pair of gears is connected to a fixed structure thereby providing the transmission with a reversible output.

Abstract: An integrated drive-generator system having a drive input shaft with a mechanical differential positioned in coaxial relation with the drive input shaft, a generator positioned alongside said differential and drive input shaft, and a hydrostatic transmission having a pair of coaxial hydraulically interconnected units positioned alongside said differential and drive input shaft and circumferentially spaced from said generator. A pair of drive connections to said differential are at one end of said hydrostatic transmission and the generator is drivingly connected to another element of the differential and with all of the interconnecting drive elements being located in a generally planar relation at the top of a housing for the system.

Abstract: A wrench for engaging the front wheel of a 4-wheel drive vehicle by releasing the drive to the front wheel. The wrench has a cylindrical body with flat end part of which is narrowed for hand receiving part, a slot rectangular in cross section is formed in one end to receive a rib of a 4-wheel drive.

Abstract: A wrench for gripping and turning an oil plug of a Briggs and Stratton engine, and including a working head at one end of a handle, the head having a circle of openings for receiving a pair of upward posts formed upon the oil plug; and the improved plug wrench, in one design, including a circular groove on each side of the head for guiding the posts into the openings each time that the wrench is disconnected, and then reconnected, while making several partial turns of the handle.

Abstract: A cutting tool holding system is disclosed. The system employs an improved chip breaker element having a lip mechanically gripping a radially extending and exposed edge of the cutting tool insert; the breaker element is held against relative sliding movement by a pin connection to a clamp which laterally urges the element and tool against the shank. Thus, the cutting insert is locked in place within the tool shank pocket avoiding premature failure from undue stress during prolonged tool cutting. The breaker element also has a chip breaker surface comprised of an arcuate segment spaced uniformly from the insert cutting point and a straight segment extending from the arcuate segment along the exposed edge of the insert.

Abstract: A silent feeder for revolving bar stock has a horizontal elongated feed bed with a beam supported by plural columns. Spaced adjustable holders are mounted on the feed bed at opposite sides of the stock, and each holder has a plurality of rollers bearing on the circumference of the bar stock, the rollers being preferably resiliently loaded radially of the bar stock.

Abstract: A method of advancing rod-shaped workpieces in a feed direction in a severing machine which includes a cutting blade defining a cutting plane, openable and closable clamping jaws and openable and closable feed jaws which are displaceable in the feed direction. The method comprises the following cyclically repetitive steps: displacing the feed jaws against the feed direction from the downstream side of the cutting plane through the cutting plane to the upstream side thereof; grasping a workpiece, situated between the clamping jaws, at a location between the cutting plane and the clamping jaws; opening the clamping jaws for allowing free passage of the workpiece; pulling the workpiece by the feed jaws in the feed direction relative to the clamping jaws through the cutting plane through a distance which corresponds to the workpiece length to be severed. Upon completion of the pulling step the feed jaws are located in their entirety downstream of the cutting plane.

Abstract: The shearing machine comprises a stationary apron and a moving apron carried by lateral upright members and provided with cutting blades, the moving apron being guided at both ends by means of roller devices adapted to cooperate with guide ramps mounted on bottom lateral extensions of the moving apron. The guiding devices are placed substantially at the level of the horizontal cutting plane while another guiding device is located in the bottom portion of the shearing machine. The extensions are adapted to receive and transmit the cutting power developed by jacks mounted on the stationary apron.

Abstract: A method and apparatus is described for feeding grid stock through a punch and die arrangement so that the spaced apart slots are equally spaced during the progression of the grid stock. The feed mechanism for strip stock comprises reciprocating punch means, die means associated with said reciprocating punch means to cooperate to punch out a group of spaced-apart slots in said strip stock, supporting means associated with said punch and die means to support said strip stock during its advance, a pair of members slidably mounted to said supporting means to operate on adjacent groups of spaced-apart slots in said strip stock to positively feed said stock away from said punch and die means, and means timed in respect to the reciprocation of said punch and die means and operative thereby, while said die means is raised from said punch means, to impart feeding movements to said feed stock.

Abstract: There is disclosed a cutting press adapted for the cutting of paper, such as discarded paper money. The cutting device is mounted in a support having the shape of a case with open side walls, a feeding conveyor passing through the case forwarding the paper to be cut to the press.

Abstract: An automatic cutter positioning device in a gang slitter consisting of a frame assembly having an upper frame including rails, a lower frame including rails, and side frames. Cutter heads are slidably mounted to the upper and lower rails. Cutter shaft journalling cases are vertically slidably mounted on each cutter head. Spline shafts journalled by the side frames provide driving force to the cutter shafts through gears and belts. The cutter heads are moved so that the forward head moves faster then the rearward head.

Abstract: A mouth-piece for electronic musical instruments includes at least one flexible valve flap exposed in the air passage formed therein each of which carries a pressure responsive element generative of electric signals in accordance with the extend of flexion of the valve flap when blown by the player.

Abstract: The invention is a pressure bar for a capo tasto which attaches itself to a stem of a stringed instrument, having a fret board and strings adjacent to the fret board, and which depresses the strings against the fret board in order to change the key of the stringed instrument. The capo tasto includes a pressure bar having a length adapted to extend across the fret board of the stringed instrument, a mounting member for mounting the pressure bar on the stem of the stringed instrument so that it is disposed perpendicular to the longitudinal axis of the stem adjacent to the fret board and a pressure applicating device for applying pressure to the surface of the stem oppositely disposed to the surface on which the fret board is placed so that the pressure is transmitted through the mounting member to the pressure bar.

Abstract: A stand for mounting floor tom-toms consists of an arcuate member having inwardly directed flanges which have apertures therein for mounting to the lugs of the drum between the castings and the rim. Vibration-absorbing grommets are provided in the flanges in order to provide a resilient support and isolate the stand from the vibration of the drum. Brackets are provided at diametrically opposite parts of the arcuate member for clamping leg members. The stand may be adjusted for both angular and vertical position relative to the leg members.

Abstract: A transducer produces an electrical signal representing the frequency of a tone produced by the vibrating string of a musical instrument. Circuit means convert the electrical signal into a visually perceivable form which moves or appears to move in unison with the vibrating string. The signal from a frequency generator representing the desired frequency operates a strobe light source which is operatively associated with the visual vibrating motion display. When the string is in tune with the pre-selected desired frequency from the generator, the vibratory motion appears to stop and the strobe light or vibrating element appears to stand still.

Abstract: In the case of cartridge feed systems for automatic weapons or guns having an endless chain for feeding and storing the cartridges there is provided an outfeed mechanism for outfeeding the cartridges by means of the feed or conveying movement of the chain. In order to be able to store a number of different types of ammunition with such equipment and to be able to infeed such to the weapon or gun, the invention contemplates utilizing an outfeed mechanism wherein it is possible to selectively outfeed cartridges in both feed or conveying directions of the endless chain.

Abstract: A control valve unit (10) disclosed supplies hydraulic fluid to an actuator (12) in a manner that controls both acceleration and deceleration of the actuator movement. A supply valve (14, 22) of the unit is movable from a central closed position in opposite directions to open positions and back to the closed position by a servomechanism (16) and a control circuit (18) that operates the servomechanism to cooperatively control the supply of the hydraulic fluid to the actuator in a manner which controls both acceleration and deceleration of the actuator movement. A control member (62) of the servomechanism operates the supply valve and is moved in a controlled manner by cooperative operation of a pair of hydraulically operated pilot pistons (88a, b), a pair of acceleration control pistons (90a, b), and a pair of deceleration cams (84a, b). Directional and flow control valves (89, 92) of the control circuit operate the pilot pistons and the acceleration control pistons in cooperation with each other.