Abstract: A process for recovery of C2 and C3 components in an on-purpose propylene production system includes utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.

Abstract: The disclosure provides a process for recovery of C2 and C3 components in an on-purpose propylene production system utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.

Abstract: An attachable, adjustable railing device for shelves comprises a plurality of horizontal rails, a plurality of vertical braces, and a structure to fasten to a shelf. The rails are “L”-shaped being joined along a front edge portion by a telescoping insertable connection for adjusting an overall width of the device. The rails further comprise fasteners affixed to side portions which attach to corresponding fasteners attached to adjacent surfaces of cabinets, cupboards, walls, or other adjacent structures.

Abstract: A giant swing ride features a launch tower rider loading platform that surrounds the rider with a safety rail and/or wall to prevent falling from the rider loading platform during loading. Various launch mechanisms include a release hook, a falling door and a retracting floor.

Abstract: A tire, which may be pneumatic or non-pneumatic, having beads which are each provided with an elastic annular member axially and radially inwardly of the associated bead core. The carcass ply is wrapped axially outwards of the bead core and part of the annular member.The tire bead seat has a taper angle which is greater than that of the rim bead seat such that on fitment of the tire to the rim the annular member, and the associated edge of the ply rotate around the bead core and cause the carcass ply to be placed in tension.

Abstract: A pneumatic tire which comprises:a tread portion; a breaker structure to brace the tread portion; two sidewalls each having an associated bead containing a bead core, and each sidewall containing a reinforcing ply of cords anchored around the bead core of the respective one of said associated beads and extending into the tread portion radially outwardly of the breaker structure to overlap at least part of the width of the breaker structure but terminating short of the other of said associated beads.

Abstract: A pneumatic tire having a tread reinforced over substantially the whole of its width by a breaker assembly, a pair of curved sidewalls each terminating in a tire bead and a radially extending reinforcing carcass ply. The tire has a shape factor of less than +0.85 when it is inflated to its normal working pressure.

Abstract: A pneumatic tire having a tread and a pair of sidewalls each terminating in a tire bead in which, in use, of the tire on the wheel rim for which it is designed, the sidewalls are so shaped and reinforced that they are placed in tension when the tire is inflated to its normal working pressure and are placed in compression when the inflation pressure falls below a predetermined value.

Abstract: A tire and wheel rim assembly wherein a bead includes a bead reinforcement (12) and a sector of elastomeric material extending for at least 60.degree. around the reinforcement (12) in a direction axially inwards from the vertical plane through the reinforcement the sector being such that bead rotation generates substantial radial force to retain the bead. The sector may be of increasing radius or resistance to compression around the angle of the sector.

Abstract: A pneumatic tire and wheel rim assembly containing a support hoop which supports the vehicle to which the assembly is fitted when the tire deflates by contacting the inside of the tire tread at the top and bottom of the assembly. The dimensions of the hoop are such that its inner surface does not touch the rim whether the tire is inflated or deflated, and its outer surface does not touch the tire when inflated normally.

Abstract: A tire or tire and wheel assembly in which the sidewalls are pretensioned before being loaded and/or deflected. Various pretensioning means are disclosed including some for displacing the beads radially, axially or circumferentially, and some for applying a radially outwards force to the tread. There is thus a tendency to lengthen the or each sidewall thereby creating pretension.

Abstract: A tire and wheel assembly in which the tire tread is wider than any other part of the tire and is reinforced by an inextensible annular structure. The tire sidewalls are substantially straight in cross section and are maintained in a precompressed state between tread and rim when mounted on the rim.

Abstract: A wheel for use with a tire whose sidewalls are to be maintained in a mechanically compressed condition when it is mounted on the wheel comprises a central disc for attachment to a vehicle, a pair of circumferentially extending radially outwardly facing seating surfaces for each of the radially inward ends of the sidewalls of a tire and a pair of radially outwardly projecting flanges axially inboard of the seating surfaces. Means is provided to force the flanges away from each other after a tire has been mounted on the wheel with its radially inward sidewall ends on the seating surfaces, thereby to force the ends of the sidewalls axially apart while they remain on the seating surfaces.