Better safe than sorry
Article Abstract:
Fasteners loosen from their torque when dynamic and thermal cycling occurs, so locking fastners are a good innovation. One kind of locking fastener is the lock-nut, which can be used on delicate assembly parts, such as plastic panels. The disadvantag of the nut is that two are needed, making assembly more difficult. Free running lock-nuts lock only when they meet the component face, and are suitable when intermittent shock loads occur. Castellated or slotted nuts are suitable for keeping a fastener its in position. Constant torque lock-nuts are suitable for dealing with vibration and loads which are constantly changing. Other features of the locking fasteners are also discussed.
Publication Name: Eureka
Subject: Engineering and manufacturing industries
ISSN: 0261-2097
Year: 1992
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Better by design
Article Abstract:
A plan of Asnieres sur Oise, France, has been published in order to protect the traditional character of the town's buildings. The plan includes a preface by the environment minister of France. Asnieres has a population of only 2,400 and it is located close to Paris. Although regulations for local land-use are included in the Plan d'Occupation des Sols (POS), the document fails to account for the particular characteristics of a locality such as Asnieres. Details of the development of the local plan are given.
Publication Name: Planning Week
Subject: Engineering and manufacturing industries
ISSN: 1352-8424
Year: 1995
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Some days are better than others
Article Abstract:
Monitoring of plant efficiency requires an accurate interpretation of the data the companies have acquired in their research. A process-behavior chart, which starts with a time-series graph, can help companies correctly interpret plant efficiency by producing computed limits. The key to the process-behavior chart's effectivity is the manner in which the limits are assessed.
Publication Name: Quality
Subject: Engineering and manufacturing industries
ISSN: 0360-9936
Year: 1998
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