Abstract: A driving gear assembly for a double helix extruder. The assembly includes a multiple power path from a transmission gear to produce synchronism in the extruder helix shafts. The structure of the gearing enables a simple adjustment of the proper mesh of the extruder helices when mounting the gearing by mere disengagement and re-engagement of a (normally not disengageable) tooth coupling.

Abstract: Remote controls of the type in which a push-pull blade extends through a tubular sheath and is supported on its opposite sides by rolling elements held spaced from one another by cage strips are improved by providing openings in the push-pull blade to capture the rolling elements and thus obviate the cage strips. A feature of the improvement is that the openings in the blade are dimensioned to permit the rolling elements on opposite sides of the blade to be in rolling contact with each other.

Abstract: A control device comprises an actuating push button slidable in a housing. A traction element, also slidable in the housing, is secured to the head of a flexible sheathed wire or cable. The traction element has an inclined surface which is engaged by a ball displaced by actuation of the push button whereby to cause displacement of the traction element and of the wire or cable connected thereto.

Abstract: In a draft gear apparatus, the housing is strengthened to better withstand distortion by draft stress imposed by the yoke on the end of the housing. Strengthening is accomplished by increasing the thickness of the housing side walls at selected areas near the housing end and by widening and thickening portions of the ribs which partially define the main spring chamber.

Abstract: A transmission comprises a first transmission case, a second transmission case connected to the case, a transmission shaft extending through the connection between the two cases, a tubular member fitting to and provided between the two cases at the position where the shaft extends through the cases, the tubular member having the shaft extending therethrough, and oil seals provided between the outer periphery of the tubular member and the two cases.

Abstract: A stationary base plate having an attached pivotable plate, and a cable secured around a circular flange depending from the pivotable plate has its extending ends lengthened or shortened on pivoting the pivotable plate. With the cable ends secured to opposite sides of a pivoted lever device, it may be pivoted by turning the pivotable plate.

Abstract: The apparatus for balancing bodies of revolution includes balancing tanks located peripherally within the body of revolution. Mounted coaxially with the body of revolution is a distributing chamber with conduits hydraulically connecting said distributing chamber with the balancing tanks. The ends of the conduits are disposed inside the distributing chamber and are equidistant from the geometric axis of the body of revolution. Resilient diaphragms are fixed on the wall of the balancing tanks, at the outlet of the conduits. The apparatus for balancing bodies of revolution also comprises a liquid supply source hydraulically associated with the distributing chamber and made in the form of a chamber with a diameter smaller than that of the distributing chamber, and said chamber being located centrally within the body of revolution and forms a tight cavity with the distributing chamber and the portion of the balancing tank defined by the resilient diaphragm.

Abstract: An apparatus for balancing bodies of revolution, according to the invention, includes distributing units mounted coaxially with a body of revolution in the measurement planes on both sides of the plane passing through the center of mass of the body of revolution perpendicular to the geometric axis thereof. The apparatus also comprises balancing tanks hydraulically connected with a liquid supply source and the distributing units and installed peripherally within the body of revolution in the correction planes on both sides of the plane passing through the center of mass of the body of revolution perpendicular to the geometric axis thereof. Each of the distributing units contains a chamber with conduits, hydraulically connected with the liquid supply source. The ends of the conduits are disposed inside said chamber and are equidistant from the geometric axis thereof.

Abstract: An adjustable length upper guide member for the hitch attachment of a tractor has an outer tubular guide element within which is telescopingly positioned an inner guide element so as to be relatively displaceable thereto. A housing on the outer guide element has a pair of jaws pivotally mounted therein and the jaws each have first arms which are engageable with annular grooves on the inner guide element and second arms which form actuating cams facing each other. An operating lever has an eccentric portion within the housing and one side of the eccentric portion is engageable against the housing and the other side of the eccentric portion engageable with the actuating cams so that pivoting of the lever causes the eccentric portion to act upon the cams and pivot the jaws to a disengaged position. A support lever is pivotally connected to the operating lever so as to support the operating lever in the position in which the jaws are disengaged.

Abstract: A balance system for rotating turbomachinery and other rotating devices is rovided wherein balance correction is obtained by snap rings having both an intentional eccentricity of their center of mass and discrete peripheral features which are adapted to be received in corresponding recesses in the machinery.

Abstract: A crank gear with adjustable crank radius for motor driven beating working implements, especially tamping implements, jack hammers, hammer drills and the like, in which the crank pin for the connecting rod is eccentrically arranged with regard to the crank shaft axis and when being adjusted moves in a circular path which is substantially parallel to its plane of circulation and is eccentric with regard to the crank shaft axis. That end of the crank shaft which faces the connecting rod is a crank disc. The crank pin is eccentrically arranged on a clamping or coupling disc which with regard to the crank shaft axis eccentrically engages that end face of the crank disc which faces toward the crank pin. The clamping disc, when in disengaging position, is rotatable from the outside of the crank gear relative to the crank disc and is adapted in a selected operative position to be arrested relative to the crank disc, by means of a tension force pressing the clamping disc against the crank disc.

Abstract: In a steering device having an expansion and contraction-durable, flexible inner wire of a control cable, one end of which is fastened to an outer peripheral surface of a disc drive member rotatably mounted in a casing, the inner wire is fitted into an annular groove provided in the periphery of the drive member, and in a gap between the periphery of the drive member and the inner surface of the casing there is placed a series of bearings located or pivoted by a prescribed length of a flexible separator and having an engaging means capable of engaging with the inner wire or the drive member only in the direction of winding the inner wire. As a result of this construction, the steering device can be lightly operated regardless of the direction of rotation of a steering wheel.

Abstract: A foot operated control unit is provided with a base to be placed or fixed in non-sliding engagement on a floor or other supporting surface, and the actuating member is a cover mounted for sliding movement on the base. The cover is dimensioned so that the operator can place his foot on the top thereof and by pressing forwardly or rearwardly thereon, slide the cover longitudinally of the base. Relative movement of the cover and base is utilized to function one or more control elements such as a valve, switch, rheostat or the like mounted on the base.

Abstract: A rotor mounting a sensor to be inserted into the earth is rotatably mounted within and locked to a cylindrical housing. The latter may be dropped to the earth and may come to rest in any orientation. When at rest, the rotor is unlocked and a drive mechanism rotates the rotor with respect to the housing. Gravity causes a ball in a tortuous path in the rotor to traverse the path and to drop into one of a plurality of annularly spaced recesses in the housing when the rotor reaches a desired orientation. With the ball in place in a recess, a wedge surface on the rotor wedges against a portion of the ball extending from the recess and this stops the rotor--in the desired orientation.

Abstract: An improved brake lever assembly of the overcenter toggle type is disclosed, wherein the brake operating lever is preferably pivotally connected with the stationary mounting plate assembly about a pivot axis that is laterally displaced from the linear axis of travel of an inner cable member relative to the concentrically arranged tubular outer sheath, thereby to reduce wear of the inner cable guide means. According to a first feature of the invention, an improved anchor plate or anchor plate arrangement is provided for connecting one end of the outer sheath member with one end of the stationary mounting plate assembly. In accordance with a second feature, a ratchet and pawl assembly is provided for releasably locking the operating lever in various angular positions relative to the mounting plate assembly.

Abstract: A pipe clamp comprising two clamp segments mounted at an attachment component, these clamp segments can be detachably connected with one another when assuming their closed position. The clamp segments are anchored at the attachment component by means of a respective hinge disposed between their end sections. At the ends of the clamp sections which face away from the attachment component, these clamp segment-ends possess cooperating parts of a locking means for releasably connecting such clamp segments with one another.

Abstract: The foot pedal assembly of a motor vehicle brake control includes a foot pedal which is mounted on a laterally extending arm of lever for limited pivotal movement about a transverse axis. The foot pedal includes a latching part which cooperatively engages a complementary part on the tractor to hold the foot pedal assembly in a parking brake position. The main part of the foot pedal is cut from a piece of extruded metal, such as aluminum. A vertically disposed end plate is releasably secured to the main part and extends upwardly to serve as an abutment or shoulder to prevent the operator's foot from sliding off the pedal. The end plate extends into a recess in the arm to maintain the pedal on the arm.

Abstract: An improved articulated bed having a main mattress support, a main mattress on the top of the support and having a cavity in which an auxiliary mattress is removably positioned, the auxiliary mattress having a pair of slots formed in its upper surface sized to receive human knees and padding material aggregately sized to occupy the slots. Another embodiment comprises the mattress support having a cavity in alignment with the main mattress cavity and in which an auxiliary mattress support is removably positioned. Heel support depressions are provided on the top surface of the mattress along with heel supporting inserts for the depressions to provide support for the user's heels in a variety of positions. Reinforcing means is provided within the mattress adjacent the mattress cavity. The mattress is secured to the support by means of snaps or projections in the support which engage the bottom surface of the mattress.

Abstract: A protective device for an inertia wheel rotating about an axis and mounted inside an enclosure comprising at least two anchoring frames, wherein the said device comprises a cowling of generally semicylindrical form whose axis is parallel to that of the said wheel and which surrounds the latter and a horizontal arm the first end of which is rigidly fixed near the top of the said cowling and at least three shock absorber sets, one of the said sets being fixed between the second end of the said arm and one of the said frames and operating in a horizontal direction, two other sets being fixed between the lower edges of the said cowling and another frame, while each shock absorber set may operate in both directions.

Abstract: A rear hub for a bicycle, which has a hub shell supported rotatably to a hub shaft through a pair of bearings and which carries two or more sprockets at one axial end of the hub shell which are freely rotatable in one direction, is provided with a protector disposed axially outwardly the smallest diameter high speed sprocket. The protector has a diameter larger than the high speed sprocket, and is supported to a rear hub fixing member fixed to the hub shaft.