Abstract: Gear for chain drives comprising a gear body of cast material having a hub section, a gear rim section with spur teeth, and a web section joining said hub and gear rim sections, and a ring plate of metal embedded in the web section, the outer edge of said plate being near the bottom of the areas between the spur teeth and having axial openings filled with casting material around its periphery, said ring plate having at its outer radial edge, radially outwardly directed projections, which are located in each case in a tooth, and which are embedded in the casting material of the gear body, said projections extending beyond the bottom of the spaces between adjacent spur teeth, and an axial opening formed in the ring plate adjacent each projection and radially below it.

Abstract: A slat conveyor having a drive shaft with grooves running axially to the shaft and driving a plurality of endless conveyor belts connected to each other on the cargo carrying side with slats positioned transverse to the direction of travel and having on the other side of said belt teeth running parallel to the slats and shaped and positioned to engage in the grooves.

Abstract: An improved non-metallic sprocket, such as the phenolic laminate type, one improvement consisting of sprocket teeth molded from continuous layers of material laminated in a corrugated, sprocket tooth forming construction about the periphery of the sprocket. Another improvement consists of the inclusion of a non-metallic hub fashioned from a length of resin pre-impregnated material, in particular, fiberglass cloth, wound into a tube. During the molding of the sprocket the layers of material forming the tube are laminated into a solid hub.

Abstract: A thermally compliant structural interconnection of a support structure and working material components provided by surfaces of the working material components being engaged by surfaces of the support structure. Dissimilar materials or components that are at different temperatures may be interconnected by support structure projections engaging recesses in the components. By providing the recesses in at least two axially displaced rows, the projections expansion or contraction relative to the recesses is compensated for thereby maintaining the projections in engagement with the surfaces of the recesses. Accordingly, relative displacements of the members axes are minimized and distortions circumvented.

Abstract: The invention pertains to a bicycle drive sprocket hub which may be universally utilized with a plurality of bicycle chain sprockets of different manufacturers. The hub is preferably formed of a synthetic plastic material and is provided with a plurality of flat locating surfaces intersected by shoulder surfaces which cooperate with locating surfaces defined upon the chain sprocket. Openings are formed in the hub for receiving fasteners for affixing the sprocket thereto.

Abstract: A drive mechanism for a rotary drum having a toothed ring which is disposed on the outer periphery thereof with a clearance in relation to the drum and which meshes with a drive pinion, the toothed ring is secured to a cylindrical support arranged concentrically to and with a clearance from the drum, and mutually spaced circumferential portions of the cylindrical support are respectively secured to the drum and to the toothed ring, the support being elastically flexible whereby the toothed ring is able to move radially of the drum with flexure of the support. The toothed ring is held in mesh with the drive pinion by guide and support elements which are disposed at the same radial distance from the drive pinion axis but which are angularly spaced about the axis and bear on an inner peripheral surface of the toothed ring.

Abstract: A rotary disc-type counterflow regenerator for a gas turbine engine includes a disc-shaped ceramic core surrounded by a metal rim which carries a coaxial annular ring gear. Bonding of the metal rim to the ceramic core is accomplished by constructing the metal rim in three integral portions: a driving portion disposed adjacent the ceramic core which carries the ring gear, a bonding portion disposed further away from the ceramic core and which is bonded thereto by elastomeric pads, and a connecting portion connecting the bonding portion to the driving portion. The elastomeric pads are bonded to radially flexible mounts formed as part of the metal rim by circumferential slots in the transition portion and lateral slots extending from one end of the circumferential slots across the bonding portion of the rim.

Abstract: A rotary regenerator construction comprising a ceramic core adapted to rotate upon its central axis and a ring gear surrounding the periphery of the core for purposes of driving the core rotatably and a yieldable compliant ring sandwiched between the ring gear and the periphery of the core to prevent stresses in the core caused by differential rates of expansion of the core and the ring during operation of the regenerator in a gas turbine engine and during processing of the regenerator and the regenerator drive ring.

Abstract: A regenerative heat-exchanger of a gas turbine with a ceramic heat-exchanger disk, a metallic toothed rim substantially coaxially surrounding the heat-exchanger disk under formation of an annular space, compression springs arranged in the annular space which are supported under prestress, on the one hand, against the inside of the toothed rim and, on the other, against the outside of curved entrainment plate means; each entrainment plate means includes a support member and an adherent layer whose concave inner side abuts at the edge of the heat-exchanger disk, whereby the adherent layer essentially consists of metal fibers which form a plastically deformable felt-like adherent layer providing a good frictional engagement to transmit the driving torque to the heat-exchanger disk.

Abstract: An improved chain drive sprocket or the like in the form of a sprocket member. The composite sprocket member includes a metallic hub portion having T-shaped lands and T-shaped grooves formed on the outer periphery thereof coaxial with the axis of rotation of the hub portion, and a toothed ring formed of synthetic resin material having an aperture formed therein with T-shaped lands and T-shaped grooves formed on the inner periphery thereof sized and shaped for close sliding coaxial engagement with the corresponding lands and grooves of the hub portion. The hub portion is preferably formed of sintered steel powder impregnated with cupreous alloy. The toothed ring portion is preferably formed of nylon. The drive sprocket may be employed in combination with the power output shaft from a motorcycle power transmission. The composite member may be slightly modified to form a composite spur gear or the like.

Abstract: An improved worm wheel which is capable of mating with a worm includes a base portion and a wear portion. The wear portion loosely encircles the base portion with mating teeth therebetween, there being a greater number at the interior of the wear portion than at the exterior of the base portion. The wear portion also includes an array of teeth at its outer surface for engaging the worm.

Abstract: A composite gear made up of a carburized gear ring and separately formed hub and a method of making same wherein distortions in the gear teeth and ring caused by the carburizing process are removed by a special design of hub and welding selected portions of the hub to the ring.

Abstract: The invention relates to a rotary heat exchanger.Springs 18, or compressed air, housed between the steel rim 2 and the cellular ceramic disk 1, exert a compressive prelateral tightness over about one-third of the surface, for the passing of the cool air of admission. The remainder of the disk is passed through by hot exhaust gases. A gas turbine, in particular for a lorry, wherein the disk 1 is subjected to abrupt accelerations and decelerations.

Abstract: A sprocket, gear or pulley having an interchangeable peripheral portion for replacement. The device has a hub with an axial boss, an annular member having teeth or a groove along its outer rim and located concentrically on the boss, and a cap to hold the annular member immovable on the boss. The annular member may be segmented. The inner rim of the annular member and the boss may be threaded or splined for interengagement.

Abstract: A rotary heat exchanger of the type having a ceramic core surrounded and driven by a ring gear is provided with a compressed air or spring arrangement between the periphery of the core and the ring gear to apply a radial compression force to the core at all times during operation of the exchanger to assist in accommodating abrupt accelerations and decelerations in the rotation of the exchanger.

Abstract: A regenerative heat-exchanger of a gas turbine whose ceramic heat-exchanger disk is coaxially surrounded by a metallic toothed rim under formation of an annular space in which are arranged springs; the springs are constituted by spring packets of cup springs which are guided on both sides in concave recesses in two webs arranged in the circumferential direction on entrainment plates which surround the lateral surfaces of the toothed rim and are non-rotatably connected therewith.

Abstract: This invention pertains to tooth transmission members in which the tooth member is mounted to a support member and the tooth or pocket is used to drive or be driven by roller chains and the like. A base member is provided and is usually a form blank such as a disc or length of metal to which is secured assembled preforms in a linked array. Each preform provides a roller receiving tooth profile. The linked preforms are tightly retained on the previously prepared base members. Any selected number of preforms may be used and at least one is secured to the support blank upon which they are mounted. The support blank may be regularly or irregularly shaped depending upon the desired resulting transmission member.