Stieber Clutch has expanded its range of load sharing backstops with the introduction of the RSRT releasable backstop. In conveyor systems, when there is a blockage, belt jam or overload, the release facility allows the stored energy to be released in a controlled manner, enabling personnel to work on the belt after an incident. The RSRT is a centrifugal lift off, sprag type backstop with an integral torque limiter and release-under-load function. It has been developed for use on the high speed or intermediate shaft of the driving machines in multi-drive systems such as on large inclined conveyors, where two or more backstops share the reverse load. The mechanical release function allows the tension of a jammed belt to be released through an internal hydraulic system. The release is performed using a simple hand pump to actuate the hydraulic cylinder, progressively releasing the backstop.When the oil pressure is released, the backstop is automatically re-set to the original slipping torque. The operation can be controlled and halted at any time, helping to boost productivity. Where multiple backstops are employed, these can be linked and operated simultaneously from a centralised control location.
Updated 21:00A GAS THAT causes cancer has been found in over 430 homes in Ireland.Radon is the second-biggest cause of lung cancer after smoking and is directly linked to more than 200 lung cancer deaths in Ireland each year.The Radiological Protection Institute of Ireland (RPII) said it found 434 homes with high levels of radon gas in the past 18 months.Dr Ann McGarry, Chief Executive of the RPII, said that Ireland has a significant radon problem, and has some of the highest radon levels found in Europe.Our research indicates that there are over 91,000 homes with high levels of radon and just over 7,900 have been found to date. Exposure to high radon levels causes lung cancer and many families are unknowingly living with a high risk to their health.The highest radon level found was in a home in Tralee, Co Kerry, which was 26 times the acceptable level. This meant that the occupants were receiving the equivalent radiation dose of approximately 18 chest X-rays per day, or 6500 per year.The survey found that 10 other homes – five in Kerry, three in Galway and one each in Clare and Wexford – had radon levels in excess of 10 times the acceptable level. The occupants of these homes received an equivalent radiation dose of more than 2500 chest X-rays per year.In addition to this, a further 39 homes had radon levels between four and 10 times the acceptable level in Galway (15), Wexford (6), Kerry (4), Sligo (4), Cork (2), Wicklow (2), Clare (1), Limerick (1), Louth (1), Mayo (1), Tipperary (1) and Waterford (1).The remaining 384 homes had radon levels up to four times the acceptable level and were found in high radon areas throughout the country.Finding radonIn order to test for radon, you place a radon detector in a bedroom and a second in a living room for a three-month period.After this, the detectors are sent by post for analysis to companies such as the RPII. The cost of a measurement is generally around €50.Improving indoor ventilation could reduce the level of moderate radon by up to half, while for higher levels, installation of a fan assisted sump is the most common method of remediation.If you want to find out if you are living in a high radon area, check out the RPII’s website or phone freefone 1800 300 600.First published 06:30Read: Even low levels of air pollution can lead to lung cancer, major new study shows>Read: Cancer-causing radon gas found in 341 homes>