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Choosing the appropriate motor for an elevator can allow more efficient energy use. by Ivo Busi and Fabio Calegari In recent years, the hydraulic lift, as an alternative to the electric traction lift, has become one of the simplest and most common elevator applications in use. Its operational principle is based on a piston driven…
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A look at how fire alarm, sprinkler and elevator controls work together in accordance with present-day fire and electrical code mandates Elevator technology has advanced over the years in the direction of greater performance and safety. Early versions were basically rope-and-basket affairs, with a loss of mechanical integrity likely resulting in user fatality. A great…
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A look at the advantages of placing intelligent building-management systems in control of car operations A Return to the Past One hundred years ago, the supervisors and attendants of elevator groups in the first tall buildings were well aware of the activities in these buildings. During periods of heavy traffic, they coordinated car operations to…
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A patent-pending solution for an eleva-tor with a reduced pit depth and over-head, which increases safety by creating a temporary refuge space to prevent crushing, is presented. This article presents the reader with a patent-pending solution for an elevator with a reduced pit depth and reduced overhead, which increases elevator safety by creating a temporary…
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This paper was presented at Lucerne 2010, the International Congress on Vertical Transportation Technologies and first published in IAEE book Elevator Technology 18, edited by A. Lustig. It is a reprint with permission from the International Association of Elevator Engineers (website: www.elevcon.com). This paper is an exact reprint and has not been edited by ELEVATOR…
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How Schumacher Elevator Co. utilizes Bucher Hydraulics, Inc. technology to improve hydraulic elevator efficiency. Denver, Iowa-based Schumacher Elevator Co. has been family owned and operated for 75 years. Marvin Schumacher and his team utilize the latest technology offered by Bucher Hydraulics, Inc. to improve the efficiency of their line of hydraulic elevators. Like other independent…
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In a rush to satisfy the latest amendment to the EN 81-70 standard on lift accessibility, the industry is purchasing induction loops based on price and ease of installation without regard to user benefit. How many times have you been at a train station and heard unclear static messages over the public ad-dress (PA) system?…
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A numerical sensitivity analysis of how several design variables of a lift-car installation determine the wear of guide shoes is presented. F. J. Martínez1, R. Monge1, M. A. Martínez2, J. A. Roig3, A. Gómez1 and M. A. Jiménez11Instituto Tecnológico de Aragón, Research, Development and Technological Services Area, Zaragoza, Spain2University of Zaragoza, Spain3MP Lifts, Spain This…
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This article evaluates the correlation between the ratio of sheave diameter to nominal rope diameter and rope service life. In recent years, a movement has gained ground in the elevator industry toward the introduction of more compact and smaller designs. Efforts to cut energy consumption and costs have driven down the size of individual components.…
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Arizona State University’s research and education center provides a solution for determining the energy efficiency of elevators. by Rich Madarasz, Jimmie Anicich, Rob Vandling and Kathy Mutch Arizona State University (ASU) is itself a city of 82,000 students, fac-ulty and staff. ASU’s Global Institute of Sustainability (GIOS) is a leading research and education center for…
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