DEMOUNTABLE CONTAINER SYSTEM: ALL BY EDBRO
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Prototype level arm loader with 64-ton payload
ByPAULBROCKINGTON,AMIMeehE
UDBRO is producing a bucket L/loader and a wide range of buckets and containers for various capacities.
The Bolton, Lanes, firm says this is the first demountable lever-arm container system based on components all designed and built by a single British manufacturer.
The prototype is based on a Ford D800 120-in wheelbase four-wheeled chassis with a g.v.w. rating of 12+ tons. Weight of the container is l0-cwt and payload is 6+ tons.
Standard equipment for a range of popular chassis will be manufactured with payload ratings up to 11/12 tons which will be suitable for mounting on a six-wheeled chassis. Equipment for larger vehicles will be produced to special order.
Conventional
Following conventional practice, the lever arms are operated by two side-mounted double-acting hydraulic rams and the bucket is attached to chains suspended from the cross bar. The bucket or container can be picked up from or unloaded to ground level, or 3ft below ground level.
When tipping is required, two hooks are raised by a single-acting hydraulic ram to connect with eye-brackets in the base of the bucket as it is moved rearwards in the elevated position by the side rams.
The eye-brackets act as hinge pins and further movement of the side arms causes the bucket to tip rearwards. Maximum angle of tip is more than 90deg.
Twin hydraulically operated stabilizer jacks relieve the chassis of excessive strain during the loading operation. They are independently controllable so the chassis can be levelled-up on uneven ground.
The details
The hook mechanism ram is hydraulically interlocked with the stabilizer rams so that normally the hooks are automatically lowered when the jacks are operated. An overriding control enables the stabilizers to be lowered for tipping.
A heavy-gauge welded-steel platform is built integral with the mounting sub-frame, and the vehicle can be used as a platform lorry when it is not required to transport a container.
Details of the operating mechanisms include a gear-mounted power take-off unit combined with an Edbro nine-cylinder swash-plate pump operating at 1,500/1,750 psi. The p.t.o. is controlled by mechanicallinkage, by cable or by air-pressure shift. The Ford-based prototype has air-pressure shift and a dash board mounted control lever. The single lever controlling the tipping hooks and jacks, and the lifting-arms lever, are usually located on the oil tank behind the cab, but may be positioned in the cab.
Warning lights in the cab show when the jacks and hooks are in the operating position.
Compensation valves
The control valves and filters are submerged in the hydraulic fluid of the oil tank. Protection against excessive operating speed and overrunning under all weight conditions is automatically provided by compensation valves.
The system is also fitted with overloadprevention valves. A hand-throttle control lever is grouped with the hydraulic controls.
NOW ROVER LANDS ITS BIGGEST YUGOSLAV ORDER
THE ROVER CO. LTD. has made a significant breakthrough into an important East European market with the largest order it has received from Yugoslavia-250 Land-Rover station wagons. Worth nearly .000,000 the order comes from Auto Hrvatska, of Zagreb, through Birfield Ltd., of London, a member of the GKN Group.
The Land-Rovers, 10and 12-seater petrol and diesel versions, will be shipped to Yugoslavia during the next 12 weeks. So far this year excluding the latest order—nearly twice as many Land-Rovers have been sold to Yugoslavia through the main distributors, Interpromet, than during the whole of the previous six years.