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A Radical Approach to the Vertical Conveyance of Bulk Materials: the OLDS ELEVATOR™

2. Introduction

Figure 2 (left) - Macadamia nuts are gently elevated with this 100 mm (4") diameter OLDS ELEVATORT.

Figure 3 (right) - The elevator being used for lifting sand in a foundry in Singapore.

Figure 4 - Completed 100 mm (4") diameter by 7 meters and 152 mm (6") diameter by 10.7 metres lift OLDS ELEVATORST for Bean Growers Australia at Olds Engineering, Maryborough.

Perhaps new ideas are best developed without the cluttered backdrop of established techniques clouding one's thoughts. When Peter Olds an Australian engineer faced the task of elevating sand for metal casting moulds five metres above his foundry floor, he found that traditional devices fell well short of his objectives for economy, compact size, quietness and maintenance free operation. Olds returned to first principles and reversed the normal screw conveyor design, driving the outer casing to rotate around a stationary inner screw. Following the successful testing of a small prototype, a full size machine was soon installed and performing well in his foundry and an application granted for Patent protection. Demonstration and tests astounded many visitors who witnessed the elevation of peas, beans, bread crumbs, coal fines, dried capsicum, dog biscuits, flour, plastic powder, wet and dry sand, rice, coffee beans, granulated coffee, macadamia nuts, steel shot, peanut kernels, various grains and seeds, sugar, wet sulphur slurry, dry sulphur and even molasses.

Word spread quickly and an OLDS ELEVATOR™ was soon working at the foundry of the Rice Propeller Co. in Mexico (figure 1). A second machine was employed locally for elevating of macadamia nuts (figure 2), another for lifting sand in Singapore (figure 3), and two larger machines installed at Bean Growers Australia, Kingaroy, followed by a further order for two more (figures 4, 5). OLDS ELEVATORS™ are now made under license and can be found working in USA, England, Mexico and Singapore with the key components supplied from Australia.

This paper reviews the development of the OLDS ELEVATOR™ since its beginnings in December 2002. It discusses the operating principle and examines the many benefits of this new elevation mechanism, in contrast with traditional methods of elevating bulk materials. The paper will review case studies of applications, showing the versatility and capability of the elevator. Finally, it will examine the research and development currently underway, on three continents, for the wide applications that are emerging for this new technology.

CONTINUE » New vertical elevator design: A Radical Approach to the Vertical Conveyance of Bulk Materials: the OLDS ELEVATOR™

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1. Olds Elevator Innovative
Material Elevation

No Segregation
No Breakage
No DustMore…

Dissatisfied by conventional methods with bucket elevators, screw elevators, pneumatic conveyors and inclined belt conveyors? OLDS ELEVATOR™ has
developed a radical concept that overcomes all the obstacles of elevating while providing engineering design, elevator manufacturing, installation and service.
MA, Massachusetts, NH, New Hampshire, CT, Connecticut, RI, Rhode Island, VT, Vermont, ME, Maine, New England and all of the United States and Canada