Abstract: A reactor assembly is provided for heating plastic material. The reactor assembly includes: a reactor vessel including a central axis; and an agitator mounted within the reactor vessel. The agitator includes: one or more blade(s) distal from the central axis for mixing contents of the reactor vessel in use; and one or more wearing parts mounted to the blade(s) to extend from the blade(s).

Abstract: A painting apparatus for applying a coating material to a member surface of a member comprises a housing, at least one slide rail, a rack assembly, a cross beam and a spraying device. The slide rail may be mountable within the housing and may have a plurality of rack positions. The rack assembly is mountable within the housing at one of the rack positions. The rack assembly is configured to support the member such that the member surface is exposed. The cross beam may be coupled to the slide rail. The cross beam is movable along the slide rail and is positionable at the rack positions. The spraying device is mountable on the cross beam and is configured to move along the cross beam while spraying the coating material onto the member surface.

Abstract: A rotorcraft rotor includes a hub , a first blade having a first twistable structure secured to the hub by a first bolt and a first ring or washer , a second blade having a second twistable structure secured to the hub by a second bolt and a second ring or washer. The rotor includes a stop structure for preventing each ring or washer from turning relative to the hub or relative to the corresponding twistable structure.

Abstract: A device for fastening two parts to each other includes fastening screws extending in aligned passages in the two parts and receiving nuts, and a removable element for preventing the screw heads from moving during tightening or loosening of the nuts on the screws, this removable element cooperating with one of the two parts for preventing rotation of the screw heads relative to this part.

Abstract: A restraint clip for suspending a load-bearing object includes an engaging member having a body defining an engaging member hole, two abutting surfaces, and two non-abutting surfaces; a lock having a lock body with a base defining a lock hole spatially aligned with the engaging member hole, wherein the lock coacts with the engaging member; a fastener extending along a longitudinal axis threadably engaged with the engaging member hole engaged with the lock hole and threadably engaged with a threaded stop hole, whereby the engaging member is adapted to move along the longitudinal axis relative to the fastener when the fastener is rotated about a longitudinal axis.

Abstract: A bolt lock locks a bolt against rotation on an output gear. The bolt lock includes a locking plate having a ring-shaped body encircling the head of the bolt and provided with locking tabs bendable into locking engagement with the flat sides of the bolt head to prevent the bolt from rotating. The plate is secured to the output gear by additional bolts. The ring-shaped body has additional locking tabs bendable into locking engagement with the flat sides of the heads of the additional bolts.

Abstract: A support member for a differential carrier housing, including a body having first and second apertures configured to align with corresponding apertures on one side of a flange of a carrier housing and configured to receive fasteners extending through the apertures in the carrier housing and corresponding apertures in an axle housing disposed on the other side of the carrier housing, the body extending between the apertures in the carrier housing.

Abstract: An improved lock plate and retaining ring mounting arrangement for securing a gear on a vehicle rotating shaft by a threaded hex-head fastener. The plate has a generally rectangular central aperture with transversely opposed internal side edges and longitudinally opposed arcuate end edges. The plate has a pair of arcuate opposed concentric slots sized to adjustably receive an associated web bolt for threaded reception in a web bore thereby locking the shaft fastener in its tightened position. A one-piece retaining ring, concentrically positioned so as to overly the plate, comprises opposed semicircular bands interconnecting a pair of diametrically opposed discs provided with a bolt hole adapted aligned with both an associated plate slot and a web bore. Each disc is formed with a plurality of radially disposed tabs whereby at least one of the tabs is in substantial registration with a side face of an associated web bolt head.

Abstract: A power door operator for multi-passenger mass transit vehicles, typically buses, features electric actuation of dual swinging doors. A manual activator having an ergonometrically correct actuating plunger, for emergency door opening, operates a sleeved clutch. Fixed to the sleeve clutch is a drive bar with arms having individually adjustable lengths. The drive arms actuate outboard door shaft levers on individual door leaf through door drive rods intermediate the door arms and drive arms. Each rod incorporates spherical rod ends. The drive arms also actuate limit switches establishing door opened and door closed circuitry for energizing the electric drive system. The adjustable length clutch door drive arms provide a convenient device for controlling door leaf closing sequence and residual or door holding force when the doors are in a closed position.

Abstract: A bolt retainer (10,110) for holding bolts (22,23,122,123) against rotation consists of a flat plate (12,112) having two or more bolt holes (18,20,118,120) therethrough and an upstanding portion (14,114). Specifically configured bolts (22,32,122,132) have surfaces (28,128) that abut the upstanding portion (4,114) thereby preventing rotation of the bolts (22,32,122,132) upon applying a nut (46) thereto.

Abstract: In the mounting of an attachment to a base member, an insert which has a centrally located threaded hole and an outer cylindrical surface which has an interference fit with a cooperating hole in the base member and is adapted to receive a bolt extending through the attachment and into said insert, the insert having a head at the end remote from where the attachment is positioned with a flat surface on the head cooperating with a connector device by which turning of the insert in the base member is provided.

Abstract: A detent apparatus for preventing the rotation of delivery valve holders threaded into the body of a fuel injection pump comprises a generally rectangular flat plate which is formed with substantially semicircular notches at its opposite edges for receiving adjacent ones of the delivery valve holders, respectively. A bolt is threaded into a central opening of the flat plate to abut against the top of the pump body with such a force that the flat plate is raised into pressing contact with the undersides of enlarged head sections of the delivery valve holders, thereby ensuring firm frictional engagement between the delivery valve holders and the pump body into which the delivery valve holders are threaded.

Abstract: A pair of nut locking cups are engaged on the external surfaces of a pair of nuts and are constructed so that the outside radius of a cup is equal to one-half of the distances between adjacent studs to allow the cups to be placed on the nuts regardless of nut position with the outside radii of the cups remaining in contact with each other; a locking bar is positioned across the two adjacent studs with the studs being welded to the bar; the locking cups are also welded to the locking bar and thus form a positive lock between the studs and the anchor point for the nut lock cups.