Abstract: A rotatable machine assembly comprising a sprocket with a casing defined by a pair of plates secured together and supported on a hub through a ball bearing assembly. The ball bearings are supported between an outer race member and a raceway in the hub. The plates of the casing surround and are supported by the outer race member so as to define annular axially spaced side walls on each side of the ball bearing assembly. A seal is supported by the hub on each side of the ball bearing with each seal being disposed entirely axially inwardly of the exterior surface of the respective side walls and in sealing engagement with the interior surface of each of the side walls thereby sealing the ball bearing while being protected by the side walls.

Abstract: A road surfacing machine for removing bumps from a roadway. A sub-frame supporting a cutter head is pivotally attached to a main frame and is controllably urged downwardly into cutter head operable position. Walking beams supporting depth control wheels which ride in the surfacing cut are pivotally attached to the sub-frame. Outrigger depth control wheels are provided near the ends of the cutter head for feathering successive cuts.

Abstract: A road surfacing machine for removing bumps from a roadway. A sub-frame supporting a cutter head is pivotally attached to a main frame and controllably urged downwardly into cutter head operable position. Walking beams supporting depth control wheels which ride in the surfacing cut are pivotally attached to the sub-frame. Outrigger depth control wheels are provided near the ends of the cutter head for feathering successive cuts.

Abstract: A sleeve bearing (20) having an outer cylindrical surface concentric to a center (24) and an inner bearing surface for surrounding a cylindrical journaled member (26) in closed spaced relationship. The inner bearing surface has oppositely disposed first (28) and second (30) crown surfaces which are divided by a dividing diameter (A) and first clearance surfaces (32) extending circumferentially from opposite extremities of the first crown surface (28) and second clearance surfaces (34) extending circumferentially from opposite extremities of the second crown surface (30) and intersecting the first clearance surfaces (32). The crown surfaces (28, 30) extend circumferentially on a first radius (r) which closely approximates the radius of the journaled member (26). The clearance surfaces (32, 34) extend circumferentially on a second radius (r') which is greater than the first radius (r).

Abstract: A detection device for positively sensing the ejection of a workpiece from a cyclically operating machine after each operating cycle assuring that no malfunction has occurred, enabling initiation of the next cycle. The device includes a chute having a pivotally mounted section in the floor of the chute which is moveable between a normally raised position and an actuated or lowered position responsive to the weight of an ejected workpiece thereon. Means are provided for sensing the actuated position of the moveable section and conveying a signal to the central control circuit of the machine. The central control circuit of the machine is programmed to prevent further operation if a signal is not received.

Abstract: A sleeve bearing for a split-angle connecting rod having a bearing surface including two opposed portions wherein the first portion is concentric with the journaled member during the loaded portion of a revolution and is defined by a constant radius which closely approximates the radius of the journaled member to provide a relatively small clearance with the journaled member and the second portion is eccentric with respect to the journaled member and is defined by at least one radius to provide a greater clearance with the journaled member.

Abstract: A contoured double-lip seal and bearing assembly incorporating at least one such seal in the annular gap between the annular races thereof. The double-lip seal comprises a reinforcing washer in which a mass of fluid resistant resilient material is secured and is integrally formed with a pair of annular axially spaced sealing members. The inner sealing member adapted to be disposed adjacent to the anti-friction elements of the bearing is of an arcuate transverse configuration and terminates in a sealing lip of a frusto-conical configuration which projects axially and radially outwardly of the bearing at an acute angle to the axis of the bearing and is disposed in resilient sliding sealing relationship on a cylindrical section of one of the race members.

Abstract: A self-aligning shaft bearing mounting assembly suitable for rotatably supporting a disc harrow shaft or the like, adapted to be mounted on a framework including a strut having a pair of spaced apart ball-members affixed thereto. An anti-friction bearing is supported by a bearing carrier comprised of a pair of plates formed with a central tubular aperture for clamping the bearing and including a pair of substantially hemispherical sockets disposed at diametrically spaced positions to each side of the central aperture and bearing and slidably overlying the ball portion of the ball members. The bearing carrier includes fastening means for securing the plates together in face-to-face relationship for clamping the bearing in the housing and the ball portions in the socket permitting pivoting self-aligning movement of the carrier about an axis passing through the ball portions.

Abstract: A conical bearing cage (10) for a tapered bearing assembly (12) comprising an integral plastic member having a central axis. The member includes a large circular ring (14) and a small circular ring (24) interconnected by a plurality of circumferentially spaced bridges (34). The bridges (34) have top surfaces (36) and sides extending downwardly therefrom with tapered portions (40) immediately beneath the top surfaces (36) thereof to define sharp lips (42). A rib (44) is disposed on the top surface (36) of each bridge (34) and extends between the rings (14, 24). The sides (46) of each rib (44) are spaced from the adjacent lips (42) and are also parallel to the central axis of the cage (10). Further, the small ring (24) is smaller in diameter than the large ring (14) thereby providing a one-piece plastic cage member (10) of sufficient strength and operating characteristics, yet capable of being molded in a two-part mold.

Abstract: A saw blade for producing a trapezoidal shaped groove in a surface including a circular support disc and a plurality of spaced-apart abrasive elements supported about the periphery of the support disc wherein the abrasive elements include a first set of a generally rectangular cross sectional configuration and a second set of a generally trapezoidal cross sectional configuration wherein the use of the two sets of abrasive elements extends the wear life of the saw blade.

Abstract: The pressure plate actuation fingers of a friction clutch are provided with means for noise attenuation by the application of acoustical materials, alteration of the mass of vibrating parts, or surface treatment of slipping parts either individually or collectively to prevent the generation of objectionable noise due to resonance and sympathetic vibrations that are initiated by the stick-slip phenomenon as the non-rotating clutch release bearing contacts the relatively rotating actuation fingers.