Abstract: The novel slave pump having a piston rod having a fluid passage through which catalyst is discharged for ultimate use. The slave pump also has an exterior casing which holds it together without contacting the catalyst or other fluids being pumped.A novel combination of a slave pump as just described driven by a master pump having a cylinder and a piston rod, a slave pump having a cylinder and a piston rod, a first means interconnecting the piston rod of the master pump with the piston rod of the slave pump, and a second means connecting the cylinder of the master pump with the cylinder of the slave pump.The position of the slave pump can be adjusted with respect to the master pump to change the amount of catalyst or other fluid delivered by said slave pump per stroke of the slave pump piston. The interconnecting linkages are provided with spherical connections to mitigate wear and binding due to misalignment.

Abstract: A mulch crimper implement for use in agricultural and horticultural applications is disclosed with a flexible mounting for extension wings that accommodates both pivotal and vertical movement of the wing in relation to the main frame of the implement. The mounting includes slotted pivot mounting holes in a pair of brackets positioned between and above the wing and main frame. A power lift system operated with a hydraulic cylinder utilizes the slotted hole wing mounting system for pivoting the wing through an angle greater than 180 degrees between work position adjacent the main frame and a transportation and storage position over the main frame.

Abstract: The specification discloses linkage assemblies (16, 59) for effecting selective pivotal movement of hinged structures. The invention is particularly adapted for use with sectional chute assemblies of concrete mixers, either for moving adjacent chute sections between extended and retracted positions, or for swinging the entire chute assembly.

Abstract: A fluid-operated clamping device comprises a support forming a cylinder in which a piston is reciprocatable. A piston rod fixed to piston has a free end projecting beyond the cylinder. A bell crank is pivotally mounted on a portion of the support extending beyond the cylinder. A clamping arm is preferably releasably connected to one arm of the bell crank and has a V-shaped end portion extending transverse to the remainder of the clamping arm adapted to clamp a sheet metal or the like between the V-shaped end portion and a matching V-shaped notch on the upper surface of a stationary anvil. A link comprising at least one spring plate partly divided by a preferably T-shaped slot extending from one side thereinto into two resilient end portions is arranged between the free end of the piston rod and the other arm of the bell crank with one end portion pivotally connected to the free end of the piston rod and the other end portion pivotally connected to the other arm of the bell crank.

Abstract: A linkage for actuating a pair of suction cups that are located adjacent the other end of the guide rails and that can fold an upwardly inclined blank on the guide rails; the suctions cups being adapted to hold by suction two adjacent side panels of the blank, that are contiguous to the lower guide rail and on vertically opposite sides of the blank, and to rotate in opposite directions about the lower guide rail until the suction cups are 90.degree. apart, so that the two adjacent side panels are folded 90.degree. apart about the lower guide rail and thereby the blank is folded into a rectangular tube.

Abstract: A motor driven hinge assembly for effecting relative pivotal motion between hinged members. The assembly includes first and second members hinged together, drive links slidingly connected to the first member and pivotally connected to the second member, a motor disposed within the first member and a gear train and lead screw connecting the motor with the drive links. Actuation of the motor effects pivotal motion of the second member relative to the first member between folded and unfolded positions.

Abstract: A vehicle for transporting a paralyzed person includes a support frame for carrying the person, a plurality of wheels for carrying the support frame, and foot supports movably connected to the support frame for supporting the feet of the person. A drive system connected between the foot supports and at least one of the wheels drives the vehicle in response to movement of the legs of the person. A plurality of stimulation signals are generated and applied to a plurality of electrodes attached to the skin of the person for causing driving movement of the legs. Controls for selectively actuating the signal generator and for controlling the speed of the vehicle are provided.

Abstract: An assist assembly for reducing the work required by an operator in rotating a cab structure on a machine between selected positions. The basic components of the assist assembly include a bellcrank member, a cab movement transmission linkage, and an extensible and retractable actuator. The actuator applies a constant pushing force on the bellcrank member urging it to rotate in a first direction. This pushing force is converted by the bellcrank member into a pulling force on the cab movement transmission linkage which assists the operator in rotating the cab structure until the center of gravity of the cab structure moves to a point directly above its rotational axis on the machine.

Abstract: The invention has been designed to be applied to conventional agricultural tillage equipment. The invention provides a new and improved mechanism for lifting and lowering, controlling and maintaining an accurate level of the equipment. It consists of a single hydraulic cylinder powering a scissor-type mechanical principle designed in such a configuration that the power provided by the hydraulic cylinder is transferred to each pivoting axle. The advantage of the device is that it is a relatively light weight arrangement while retaining stability and rigidity of the arrangement in operation.

Abstract: A fluid dispensing nozzle for dispensing gasoline includes a main valve, an actuating lever for operating the main valve, a plastic plunger to which the actuating lever for the nozzle is pivoted, and a sleeve slidably mounted on the lower end of the plunger for preventing breakage of the plunger. The sleeve includes a yoke part which surrounds both the end of the plunger and the end of the lever. A cast hand guard surrounds the yoke.

Abstract: A hitch locking mechanism for an implement or the like having a frame and transport wheels movable between lowered transport positions wherein the frame is raised for transport and raised positions wherein the frame is lowered for an operating mode, and having a hitch bar hinged to the frame, the hitch locking mechanism being interconnected between the transport wheels and the hitch bar and being operative to maintain the hitch bar in fixed relation to the frame when the transport wheels are in their lowered transport positions, and operative to enable hinged movement of the hitch bar relative to the frame when the transport wheels are in their raised positions.

Abstract: An apparatus for holding a syringe and filling ampules is described. The apparatus is comprised of a housing having a base and a vertical support member. A syringe holder is affixed to the vertical support member in a manner which permits the syringe holder to slide up and down between two limits on the vertical support member.The apparatus operates by first lowering the syringe holder downward to place the needle of the syringe (in the holder) into an ampule, in response to the downward movement on the device's handle. Further downward movement of the handle causes material from the syringe, such as a viscous liquid, to be dispensed into the ampule.

Abstract: A fine/coarse data selector apparatus for aircraft flight control systems and instruments is manually adjustable in either an incremental fine mode or an uninterrupted slew mode by means of a high resolution gear change clutch means which eliminates any gear mesh alignment and resulting undesired signal transducer transients associated therewith.

Abstract: An article crushing device having a base support on which is mounted an anvil bracket for supporting the item to be crushed includes a crushing piston disposed in a cylindrical housing which is adapted to slidably move therein. An operating handle, pivotally connected to the base support, is provided with a means connecting the operating handle to the piston for progressively increasing the ratio of force on the piston to moment on the operating handle as the piston approaches the anvil bracket during the crushing operation of the article.

Abstract: An apparatus (38) for tilting a pivotally mounted vehicle operator cab (21) has an actuator (40) for exerting a tilting force, a link (60) for directing the tilting force in a direction substantially perpendicular to the longitudinal axis (58) of the actuator (40), and a strut (46) for absorbing a substantial portion of the tilting force to prevent damage to the vehicle elements.

Abstract: In a leverage system, a four-member articulated linkage pivoted at one extremity on a support, one linkage member being rigid with a load arm carrying a gripper assembly for holding a tool, is connected via a pair of force-transferring levers to a pneumatic cylinder for counterbalancing gravitational moments. One lever is articulated at one end to a pivot of the four-member linkage and at another end in a toggle link to the piston of the cylinder, while the other lever is pivotally connected at one end to the piston and the toggle lever and at an opposite end to an arm of a bell crank forming a linkage member.

Abstract: A linkage assembly for linearly moving a valve of a coupler between its open and closed positions has a yoke pivotally connected to a first link which is fixed to a rotary shaft so that the yoke rotates about the axis of the rotary shaft during a predetermined angular rotation of the rotary shaft. The yoke and a second link, which is pivotally connected to the valve, are in bearing engagement during the predetermined angular rotation. During a portion of the predetermined angular rotation, the center of the bearing surface of the second link is maintained in alignment with the axis of rotation of the shaft by a pin on the second link riding in an arcuate channel fixed to the shaft for rotation therewith.

Abstract: A mechanism for translating motion in a first direction to an output motion in a direction normal to the first direction, the mechanism having a generally bar-shaped member with a second generally bar-shaped member slidably coupled thereto with an interconnecting pressure plate member operable toward the first bar-shaped member for sliding the second bar-shaped member. The pressure plate member is formed integrally with the first and second members and spring-biased. The mechanism may be used for example in a doll or the like.

Abstract: A fan assembly for a ventilator system. The assembly comprises a fan housing a inlet end and an outlet end. One or more blower wheels are secured for rotation in the fan housing to direct air from the inlet end to the outlet end. Each of the blower wheels has a plurality of inclined peripheral fan blades. Means is provided to support and impart a rotational drive to the blower wheels. An adjustable cylindrical damper is movably supported in closely spaced relationship to the periphery of the blower wheels to vary the quantity of fluid directed to the outlet end of the fan housing.

Abstract: A ratio select mechanism including a supporting structure, first and second rotary input members mounted on the supporting structure, and a connecting lever extending between the rotary input members. An output member is coupled to the connecting lever. The opposite ends of the connecting lever are mounted for movement on the rotary input members, respectively, along radially extending paths. By adjusting the relative radial positions of the end portions of the connecting lever, the authority which each of the rotary input members has over the output member can be adjusted.

Abstract: A linkage, especially for the pedals of a skid-steered tractor vehicle for operating the boom arms and attachment carrier, which requires no machining or threaded couplings. The arrangement includes links made of flat bar stock. Pivotal connections between adjacent links are made by punched holes, pins and side connectors. Adjustment for linear travel is at the pedal or valve rather than in the linkage itself. Crossover in the linkage path is by a bridging link having an open slot with curved sides rocking on a flat sided pin whereby movement is transmitted laterally.

Abstract: A mechanical arm linkage for use in wellbore measuring instruments provides a linear correcting linkage assembly for pivotally connecting a sensor in linear sliding relationship to a non-linearly articulated moving arm member.

Abstract: A detent type tuning mechanism for a UHF tuner having a continuously variable tuning shaft includes a detented selector shaft, and a fine tuning mechanism including a rotatable turret having mounted thereon a plurality of cams, each adjustable by a fine tuning shaft when the selector shaft is positioned in a predetermined position. A variable impedance element, operated by the fine tuning mechanism, is provided for fine tuning the tuner independently of the position of the selector shaft and the tuning shaft to permit a precise numerical display of the UHF channel selected in each position of the detented selector shaft.

Abstract: An agricultural implement has a hinged winged frame which swings between a horizontal storage position over the main frame and an outboard generally horizontal work position. A hydraulic cylinder pivoted to the implement main frame has its piston pivotally connected to the upper end of an operating link which pivotally connects at its opposite end to a link made rigid with the wing frame and which swings on the hinge axis. An abutment block on one of the links engages the other link to solidify the pivotal connection of the links converting the two links into a first class lever fulcrumed on the hinge axis as the piston is retracted within the cylinder to raise the wing frame out of its working position.

Abstract: The invention specifically relates to an improved rotary actuator for operating a reciprocating member used for transferring articles from one position to another. The rotary actuator is air driven, and linkage is provided between the actuator and the reciprocating member for uniformly accelerating and decelerating the member between two positions. Cushioning of the actuator also improves the acceleration and deceleration characteristics of the actuator.

Abstract: A device for mechanically connecting hopper car unloading boots to the discharge outlets on the car for unloading bulk material from the car, in which a pair of coupling frames are supported on a lift platform and interlinked with each other so that they can be spread apart into position under the outlets on the car and drawn together between the tracks by moving either one of the coupling frames, such movement automatically resulting in the other coupling frame being moved a corresponding amount in the opposite direction. In addition the lift platform is prevented from accidentally lowering out of engagement with the outlets by a hydraulic lock that is built into the lift cylinder.

Abstract: A machine tool driving device suitable for use in a shearing machine, a press or the like which has a machine tool mounted on a tool support vertically movable along a fixed frame, the device comprising at least a pair of links connected to the support for drivingly imparting vertical reciprocating movements thereto, the pair of links being always disposed symmetrically with respect to an imaginary vertical plane which passes through the center of the tool support plate so that horizontal components of the driving force which is imposed on the support by the paired links are cancelled by each other to allow high precision work.

Abstract: An agricultural implement has a hinged winged frame which swings between a horizontal storage position over the main frame and an outboard generally horizontal work position. A hydraulic cylinder pivoted to the implement main frame has its piston pivotally connected to the upper end of an operating link which pivotally connects at its opposite end to a link made rigid with the wing frame and which swings on the hinge axis. An abutment block on one of the links engages the other link to solidify the pivotal connection of the links converting the two links into a first class lever fulcrumed on the hinge axis as the piston is retracted within the cylinder to raise the wing frame out of its working position.