A collapsible trolley which in its collapsed condition can be used as a portable case and more particularly to a trolley of the type in which the wheels and a handle framework can be folded into a position in which they are compactly contained adjacent the sides of the case or into a position in which the case and the wheeled handle framework form a trolley adapted to receive and support additional cases or luggage.

A trolley for pipe rail conveyor systems provided with a plurality of rail-engaging wheels, each wheel comprising two companion wheel sections which are mounted for independent rotation which occurs when the trolley traverses a curved portion of the pipe rail, said wheel sections when so mounted forming between them a circumferential groove to receive the pipe rail on which the wheel is to ride, the inner end of said wheel sections being spaced from each other, the groove having a contour formed...

This invention is concerned with a folding four wheeled frame for a pushchair which has two front and two rear upwardly extending supports each of which carries at its lower end a wheel. The supports are pivotally connected to an upwardly extending backbone, and also connected near their lower ends to the lower end of the backbone by means of separate pivotal links. The front supports are connected near their upper ends to a first mounting adjacent to the top of the backbone by means of separate...

A trolley retrieval system for transporting or returning trolleys from a finish area back to a start area for traveling along a cable. The systems may include a cable held in suspension between the first and second supports. A retrieval line may be suspended in a closed loop extending from proximate the first support to proximate the second support. A trolley for traveling along the cable may be selectively connectable to the retrieval line. A motivator may selectively circulating the retrieval ...

A trolley hoisting system for use in a rig has a derrick mounted to the rig, a winch line extending from an upper end of the derrick, and a traveling block located at one end of the winch line. An injector trolley has at least one cavity for allowing the winch line passage therethrough and is adapted to engage the traveling block so that the winch line may be used to raise and lower the injector trolley along the derrick. A lock arrangement for fixing the injector trolley to the derrick at an up...

A trolley and chock assembly includes a trolley and a chock shaped to be slidably coupled to the trolley such that the chock can slide in a sliding direction along the trolley. The chock includes a side opening on a side surface thereof. The trolley and chock assembly further includes an attachment mechanism for releasably coupling the chock to the trolley, and the side opening of the chock provides access to the attachment mechanism in a direction generally perpendicular to the sliding directio...

A mobile supermarket trolley washing apparatus including an enclosure through which the trolleys pass. Spray nozzles deliver a liquid stream to the trolleys within the enclosure to clean the trolleys.

A coupling device for a handling trolley comprises a drawbar (22) arranged at the front of the trolley and designed to co-operate with the hook (24) provided at the back of a tractor, in particular a trolley preceding a line of trolleys. The drawbar (22) comprises a longitudinal slot (36) wherein the hook (24) is designed to slide such that the hook can slide in the longitudinal slot between a position spaced apart wherein the trolley (10) is at a maximum distance from the tractor while it is be...

A portable knockdown trolley hoist, comprising: a trolley support member having opposing ends; a trolley having a plurality of upper roller bearings and a plurality of lower roller bearings, the trolley rollably sandwiching an upper portion and a lower portion of the trolley support member between the plurality of upper roller bearings and the plurality of lower roller bearings, the trolley having a telescoping extension boom fastened thereto and extending therefrom, which has a plurality of ext...

A golf trolley includes a frame, and two propping members; the frame includes two tube parts; each of the propping members includes a sleeve portion, a connecting portion, a prop pad, and a stopping element; the sleeve portion is positioned around a corresponding one of the tube parts of the frame, and has a slot thereon, which extends in a direction perpendicular to an axial direction of the sleeve portion; the connecting portion is connected to the sleeve portion and the prop pad; the thicknes...