Elevator U has announced its annual conference will be held at the Scheman Building at Iowa State University in Ames, Iowa, on June 17-20. A factory tour of Schumacher Elevator Co. in Denver, Iowa, will take place on June 18, and industry presentations will be made throughout June 18-20. A pre-conference golf outing on June…
Read More The perception that most elevator passengers have as they are riding our industry’s equipment is that the enclosure in which they are traveling is suspended from above. While in most large cities (and, in particular, downtown business districts) this is often the case, the fact of the matter is that in more cases than they…
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While catastrophic failure of hydraulic-elevator systems (specifically in-ground hydraulic cylinders) is not common, these systems can and do fail, leading to serious and costly consequences. As a result, over the last 40 years, the elevator industry has adopted various safety measures to reduce the inherent and somewhat unpredictable nature of these critical components. When we…
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Elevator mechanics frequently deal with a fair share of heat issues in hydraulic elevator systems. The key to solving these issues is targeting the root cause, not a symptom. The difference between the two approaches is getting the job handled the first time, versus the likelihood of a costly return call from an unhappy customer.…
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Both developed and developing countries are facing major challenges to reduce carbon emissions and environmental impact. While new energy-efficient products are hitting the market every day, energy-efficiency norms and guidelines established by governments work as catalysts in filtering out outdated and inefficient products. The elevator industry is no different, having seen energy-efficient and environmentally friendly…
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by Dr. Lutfi Al-Sharif, Osama F. Abdel Aal and Ahmad M. Abu Alqumsan Monte Carlo simulation is a powerful tool used in calculating the value of a variable that is dependent on a number of random input variables. For this reason, it can be successfully used when calculating the round-trip time of an elevator, where…
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Part One of this article (ELEVATOR WORLD, May 2013) traced the history of Gurney Elevator Co. from Howard Gurney’s purchase of National Elevator and Machine Co. in 1905 to his 1911 decision to change the company’s name to Gurney Electric Elevator Co. In fact, the company’s name change occurred in two different ways, which occasionally…
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The increased construction of modern rail systems and upgrading of existing networks in Africa, due to the growing population and freight volumes, is creating opportunities for vertical-transportation companies. It is estimated that US$48 billion worth of projects are either underway or planned in Africa, with Morocco, Ghana and Nigeria singled as the highest investors in…
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Brooklyn, New York-based Dunwell Elevator recently celebrated its 30th anniversary, as well as landing a major commercial- client project in lower Manhattan, New York. The company’s steady growth over the years recently prompted Dunwell Elevator’s founder, President and CEO Al Milo to purchase its neighboring building on Grand Street in East Williamsburg for expansion. According…
Read More Imagine this scenario: An elevator inspector completes a job, and the report is on the building owner’s desk the next day. A one-day turnaround? That may sound far-fetched, but it is not entirely beyond reach. To show how the industry could approach that kind of goal, this article first reviews the current inspection and reporting…
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