Abstract: The invention provides a brake operating device wherein an operating lever pivoted on a frame transmits an applied force with a variable ratio through a roller and cam-lever mechanism to the brake linkage. A two-armed cam lever is pivoted on the frame and has one arm connected to the brake linkage and on its other arm there is provided a cam track upon which is guided a roller rotatably mounted on the operating lever. There is a recess in the cam lever in the vicinity of its pivot mount and this recess has an approximately semi-circular configuration to receive the roller when the operating lever is in its release position. The cam track on the cam lever is disposed between the pivot mount of the operating lever and the pivot mount of the roller on the operating lever.

Abstract: The invention discloses a form of gearing that is radially preloaded and utilizes closely conforming teeth. The preloading ensures that the higher torque capacity of conformal teeth can be realized more fully than in fixed center gearing, and the conformal tooth profiles, if concave-convex, ensure that the amount of preload needed is minimized, since the effective pressure angle for such teeth diminishes as the transmitted torque increases.

Abstract: An adjustable gear train is disclosed wherein play in a train of intermeshing bevel gears is accommodated by forming one of the gears of two radially separated coaxial parts which are axially movable with respect to one another, one of the parts being gear toothed and the other of the parts forming a shaft for the toothed part.

Abstract: In a ball screw connected between an actuating motor and load, the improvnt comprising a friction brake mechanism carried by the nut section of the screw for automatically locking the nut and screw together when the motor is de-energized. The invention prevents the load from producing dangerously high free-wheeling rotation of the screw that could centrifugally destruct the motor.

Abstract: A chain tensioner and the like for use with an endless chain constructed of a plurality of joined body links and flanking side links which is adapted to mesh with spaced sprockets. The side links have portions which extend radially outwardly and define a channel with the body links. An endless, flexible member is received in the channel having a length no greater than the initial length of the belt.

Abstract: A device for engaging and disengaging a power shaft and driven elements of a forage wagon or similar tractor drawn implement. A split sheave clutch having a driving face connected to the power shaft and a driven face connected to the driven elements is engaged by tightening a V-belt between the faces. The belt tightening mechanism includes an idler pulley shiftable to and from a belt tightening position and a latching mechanism releasably securing the pulley in the belt tightening position. A latch control member connected to a safety bar extending across the front of the wagon releases the latching mechanism to disengage all the driven elements when the operator either pushes or pulls the safety bar. The driven elements can be re-engaged with the power shaft by shifting the pulley to the belt tightening position without need for the operator to first return to the tractor to stop the power shaft.

Abstract: A worm and worm-rack combination with hydrostatic lubrication therebetween. The teeth of the worm and the worm-rack have a trapezoidal cross-section and lubricating oil is supplied through openings in the toothed flanks. The half angle formed between each of the toothed flanks and the line of action to the axis of the worm is limited solely to the range of 6 to 10 degrees and the lead angle is in the range of 2 to 10 degrees.

Abstract: This box type belt adjuster includes a box open at least at one end so as to form a passage therein for a belt or other webbing around a cam which latter is supported on a transverse shaft in the box. A snap-on cap covers the inner end of the passage and encloses a space for a yoke engaging the cam for turning it in the passage. The height of the passage and the distance between the risers of the cam are so related that when the cam is turned to move the risers toward the opposite top and bottom of the passage the clearance is slightly less than the thickness of the belt or webbing whereby when the cam is so turned the belt is jammed between the top and bottom of the passage and the risers of the cam. A manipulating extension extends from the lever to the outside of the cap for turning the cam in a direction to increase the clearance between the risers and the respective sides of the passage.

Abstract: The synchronizing mechanism for the unfolding of articulated carrier elements which are outwardly extendable or inwardly retractable in a bellows-type arrangement on each side of a satellite body comprises a system of gear-train units placed alternately at one end of a driving carrier element. The mechanism is adapted to cooperate with at least one drive motor for folding-back or unfolding the carrier elements.

Abstract: Ball nut and screw are grooved to form helical race for an endless train of balls that circulate through the assembly. Leading and trailing turns of the race are connected by a return passage which includes an intermediate passage extending longitudinally of the nut. Special guide tracks in end sections of the ball nut have radially relieved paths, which allow high speed balls acted upon by centrifugal forces to travel along the outer surface thereof to avoid mechanical pick up to provide for smooth vibration-free linear movement of the ball nut along the rotating screw.

Abstract: A precision gear reduction assembly for a gear train assembly for a gear train incorporates a backlash control in which the intermediate gear shaft has one end only mounted within an eccentric bushing. The bushing provides for the adjustment of the intermeshing of the final two gears of the gear train by tilting the intermediate shaft slightly as the bushing is rotated to achieve the desired degree of backlash control.

Abstract: This is a compatible angled gear system wherein the shafts of the pair of meshing gears are at an angle to each other, ranging between a maximum angle of ninety degrees to a minimum angle of forty-five degrees, and wherein the limits of the angles of the gear teeth range correspondingly between forty-five degrees to a minimum of twenty-two and one-half degrees, the angle of the shafts to each other always being just twice the angle of the meshing gear teeth. The gear teeth of the meshing gears are always in a straight line at their point of contact. There is always an odd number of gear teeth in such gears, and the minimum number of teeth for each gear is always five; rights fit rights and lefts fit lefts, with the shafts at an angle to each other.

Abstract: A stepless variable speed gearbox employing a parallel combination of a hydrodynamic drive and a variable speed drive, with a coupling arrangement including an overrunning or disconnecting clutch to disconnect the hydrodynamic drive when the variable speed drive comes up to a given speed.

Abstract: A tensioning device for maintaining a constant tension on continuous or endless drive members, such as continuous drive belts, chains and the like. A lever carries an idler roller at one end thereof which is adapted to engage the continuous drive belt, or the like. The lever is pivotally mounted on the engine, machine, or other apparatus which carries the continuous drive belt. A spring means is provided for normally biasing the lever in a direction to move the roller toward the belt to maintain a constant tension thereon. A spring biased wedge means is movably mounted on the lever for engagement with a cam means for holding the lever in an adjusted position. The spring biases the lever against the belt automatically to maintain a constant tension on the belt as the belt stretches or loses its tension. The wedge means permits the lever to automatically move in one direction to maintain a constant tension on the belt, but it restricts movement of the lever in the opposite direction.

Abstract: A clevis having a pulley rotatably mounted between its outer ends has a bight or closed inner end of uniform thickness curved around a segment of a cylindrical surface with its axis parallel to the plane of rotation of the pulley, and spaced from the surface of the pulley. A retaining clamp bar has flat ends attachable to a mounting surface, and a center portion off-set upwardly from the plane of the ends by a distance no greater than the thickness of the bight of the clevis. The off-set center portion is curved transversely upwardly about a segment of a cylindrical surface substantially coincident with the axis of curvature of the bight of the clevis when the clamp bar is arranged through the clevis and secured at its ends to a supporting surface. The periphery of the pulley is concavely curved and spaced at its center from the bight of the clevis.

Abstract: A transmission for a two-worm press with two counter-running worms, which includes two transmission output shafts respectively connectable to the two counter-running worms, first gears laterally offset relative to each other. These first gears are drivingly interconnected by second gears forming intermediate gears. The transmission also includes a bearing housing detachably connected to a transmission housing which houses axial bearings for the transmission output shafts and also houses the bearings for the intermediate gears. The bearing housing is connected to the worm housing of the two-worm press by means of the rods extending through the transmission housing. One of the transmission output shafts is firmly connected to a first extension shaft so that the latter is rotatable with said one transmission shaft.

Abstract: An idler mechanism for maintaining tension on a drive belt of a belt drive system. The idler mechanism includes a pulley mounted to an idler arm for rotation about a rotational axis. The idler arm is attached to mounting apparatus having a resilient and damping element for eliminating vibration and dissipating shock loads on the belt and establishing tension in the belt. In the preferred embodiment the resilient and damping element comprises a torsional bushing having a torsional axis parallel to the pulley rotational axis and a torsional member constructed from a block of resilient elastomeric material which provides both tension and damping.

Abstract: This invention relates to pulleys or similar parts with a hub, the hub being provided with a tapered bore for assembly to a shaft having a complementally tapered end. The hub is provided with a draw-off arrangement which consists of a flanged nut screwed onto a threaded projection on the end of the shaft and which presses against a shoulder within the hub when attaching the part. When detaching the part the nut flange bears against a radially overhanging axially mounted backstop ring either formed integrally with the hub or by a washer secured to the hub.

Abstract: A portable grain bin has a V-shaped botton with right and left hand augers to move the grain to the center of the grain bin where an auger elevator lifts it to be discharged into a truck.A perforated tube immediately above the augers in the bottom of the storage bin is connected to a fan on the storage bin so that dry air may be blown into the grain to dry the grain and keep it from heating. Wheels on the bin permit the bin to be moved from one field to an adjacent field, although when in use, the bin rests upon runners.

Abstract: An actuator assembly particularly useful for operating butterfly, ball or plug type valves is disclosed herein and comprises a relatively efficient gear train including first means for coupling the gear train to a drive member and a pinion in driving engagement with a sector gear of limited circumferential extent formed on a periphery, preferably an inner periphery, of a generally triangular sector member. At the vertex of the sector member opposite the sector gear there is provided a rotatably mounted drive member for driving the stem of an associated valve member as it rotates. Accordingly, as the sector gear is driven, the drive member rotates the valve stem to open or close the valve. The input gear train includes a non-reversing coupling means adjacent the first coupling means whereby the drive member can rotate the sector member and, thus, the valve stem, but external forces on the output side of the non-reversing coupling means cannot cause rotation of the valve stem.