TECHNOLOGY REPORT | PORTABLE CRANES
ASYMMETRIC GANTRY, CLAY OVEN AND BASEMENT
Bow Street Magistrates’ Court and Police Station in the heart of London’s Covent Garden was once where Edwardian man-about-town revellers were taken to be charged with drunk and disorderly behaviour after over-exuberant late-night celebrations in the surrounding nightclubs and hostelries. The historic Grade II listed building is now being converted to As part of the transformation, commercial catering equipment had to be lowered from the
R The Pulley Man complete with drill
suggests is its 1,000kg worm gear battery drill winch (a smaller 200kg version is also available). To power it for the golf course application Gebuwin shows a large heavy- duty construction drill from Stihl rather than the more familiar handy toolbox item, but the principle is the same: the drill is inserted into a socket and is used to raise or lower the nets with high speed and low torque. The final tensioning of the nets, needing a higher torque, is done manually, but since few turns of the winch drum and handle are needed for this last stage it does not take much time or effort. The winch is equipped with a special flexible adaptor to absorb the vibrations of the drill. Gebuwin also offers its more
conventional cordless drill-powered Pulley Man hoist. It weighs 4kg, so is easy to carry. It has a lifting capacity of 300kg (or 600kg with a two-line fall arrangement) and a standard cable length of 12m (though it can work with up to 50m, and can pull a 1,500kg load in a winching rather than lifting mode.) A suggested application is unloading bags of building sand from the back of a pick-up truck – though, of course, a suitable overhead attachment point will need to be found unless your truck has a davit arrangement fitted. The Pulley Man can be supplied on its own, or in a complete kit that includes a cordless 18V 50Nm Hikoki-brand drill with two Li-ion batteries and charger. And, since manufacturers seem to believe that videos are necessary to show how drill- powered hoists should be used, Gebuwin has two: at
https://bit.ly/3DUZiON for the golf course, and at
https://bit.ly/3DxdjRc for the Pulley Man. Actually, they have three. Since Christmas is coming, if you are feeling in need of seasonal cheer have a look at Gebuwin’s Pulley Man being used to set up the Christmas tree inside Salisbury Cathedral at
https://bit.ly/3NBJ4xd. It enabled the erection of a 10m tree, which is 3m taller than could be managed in previous years when hand winches had to be used. Something to put on your Christmas list maybe? ●
www.hoistmagazine.com | December 2022 | 33
the building. The task called for a gantry solution that could work across two levels and in a fairly restricted space. The requirement was for a moveable gantry that could accommodate both the 5.5m height and the 800kg weight. DSM Contract Lifting Services contacted Reid Lifting’s partner Ritelift for advice. The solution was a beam supported from the basement at one end and from the ground of them supported a horizontal beam 8.4m long running between them. Two standard trollies The solution was assembled quickly and easily. The oven and cherry picker were safely
lowered into the basement in minutes. Because the Portagantry system allows for beams and standard gantries from the range that Ritelift hold in stock.
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