40 ACRES TO INTRIGUE ABC'MEN
Page 56
Page 57
Page 58
Page 63
If you've noticed an error in this article please click here to report it so we can fix it.
MANY of the exhibitors at the fourth biennial International Construction Equipment Exhibition at the Crystal Palace, London, have displays of interest to road transport operators. The exhibition which occupies a site of about 40 acres, closes tomorrow.
A conference on International Construction is being held concurrently and this deals with the various aspects of largescale building construction and so on.
Some of the exhibits are reviewed in this article.
The Leyland Motor Corporation occupies a big stand and— besides featuring examples of industrial versions of diesel engines made by LMC member companies—displays two dump trucks. One of these is particularly interesting as it carries the name Leyland LD68. This model was previously the Scammell Himalayan and it marks the first time that a heavy model made by a Leyland Group member has been renamed in this way.
Both Scammell dump trucks are now listed as Leyland. The second chassis was the Sherpa and is now the Leyland LD50.
The LD68 is a 6 x 4 and has a 12/14 cu.yd. capacity body. A payload of 19.3 tons is possible and power is provided by a Leyand 0.680 200 bhp diesel which drives through a six-speed gear pox.
On the Crystal Palace proving ground an AEC 690Dumptruk s shown in operation. This six-wheeled machine has a 13.4 tons Payload capacity and a 12 cu.yd. heaped-capacity body. Power s provided by an AEC AV 691 diesel which provides 200 bhp. The ear axles are driven through a five-speed gearbox. Wheelbase is 12ft 8in and the Dumptruk has twin-ram three-stage gear which an tip to an angle of 70deg in 12 to 14 seconds.
Fodens Ltd. is also featuring dump trucks. There are two on he stand. a six-wheeler with half-type cab and powered by a 2ummins 212 bhp diesel and a heavy-duty four-wheeler which 7odens introduced last year. The latter has a 12 cu. yd. body and ;toss rating is 24 tons. The standard rear tyres are Goodyear !3 x 21 Super Low Profile and a Leyland 0.680 diesel drives hrough a 12-speed overdrive gearbox.
As well as these chassis Fodens have a 6 x 4 concrete-mixer :hassis with a Gardner 6LW 112 bhp diesel and an eight-wheeler vith Foden Low-Line cab which is intended as the basis for a crane.
iignificant exhibit
An exhibit of considerable significance on the Greenside Machine Co. Ltd. stand is a German Kaelble 34-ton dump truck.
Greenside now markets the Kaelble range of dump trucks and other equipment in the UK, and the huge four-wheeler exhibited has a 30-cu.yd. body. Power is provided by a 400 bhp V8 engine and bur-wheel drive or two-wheel drive can be selected.
Peter Hamilton Equipment Ltd. also shows a dump truck—an 4tkinson six-wheeler fitted with an Edbro body of 14 cu.yd. :apacity and able to handle a payload of 17.8 tons. The Hy-Mac Z6 Land-Rover mounted hydraulic maintenance platform is nteresting to visitors from local authorities.
Four items of Russian equipment, one a dump truck, are eatured by Halegate Plant Hire Ltd. Load capacity of this nodel—designation is HG 570—is 27 tons and the maximum )ody capacity when carrying bulk materials is 25 cu.yd. Outnit of the V12 diesel engine in the model is 375 bhp and a oad speed fully laden of 34 mph is claimed.
Halegate will also offer 40and 60-ton dump trucks from Russia in the near future but as with the HG 570 they will be for hire only. It is reported that the firm will eventually market these machines in Britain but not within the next 18 months.
A dump truck that is making its first appearance at Crystal Palace is the Heathfield DF 20 shown by Heathfield Engineering Ltd., of Newton Abbot, Devon. This is a small-size model— wheelbase is 8ft and overall length 15ft 81n. A payload of 10 tons is possible within a gross rating of 16.3 tons and body capacity is 8 cu.yd.
The engine used in the DF 20 is a Perkins 6.354, driving through a David Brown five-speed overdrive gearbox to a Centrax hypoid-bevel rear axle. Twin-ram tipping gear gives a 60 deg angle of tip which can be completed in lOsee.
Manufacturers of concrete-mixer units for mounting on trucks that are exhibiting include Winget Ltd. This company has a new 6-cu.yd. model which is claimed to be one of the lightest mixer trucks available. By designing the mixer specially for mounting on a commercial vehicle—it is shown on a Leyland six-wheeler—Wingate has reduced the weight by 17cwt. Also helping in this respect is the use of high-strength alloy steel for the drum and reinforced plastics for the water tank and cowling.
Another interesting exhibit by Winget is equipment for easier and more efficient delivery of concrete shown mounted on a Ford chassis. This consists of a pump driven by hydraulic motors fed by a dual hydraulic pump driven by the vehicle engine. Concrete to a particular consistency is fed into a hopper next to the pump and it can be discharged at up to 300ft horizontally or 100ft vertically at a rate from 10 to 25 cu.yd. per hour.
Stothert and Pitt is also showing an example of its truckmixer design.
The site is dominated by cranes, many mounted on conventional commercial-vehicle chassis. Concerns featuring models in this category are John Allen and Sons (Oxford) Ltd., British Crane and Excavator Corporation Ltd., Priestman Bros. Ltd. and Peter Hamilton Equipment Ltd.
On the stand of John Allen and Sons (Oxford) Ltd. are several models ranging from 10 tons to 40 tons capacity. The smallest of these, a prototype, is a natural extension of the 6-ton model shown at previous shows. The largest in the range—the TM425T—is of the telescopic-boom type and is mounted on a five-axle rigid chassis manufactured by FWD of America. The crane is made by John Allen under licence from the Grove Manufacturing Co. of Pennsylvania.
When in the retracted position the jib measures 33ft in length and it extends to 105ft. A StowAway jib 27ft long can be supplied as an accessory.
The chassis is of unusual design having its five axles in a twin-steer and three-axle rear bogie layout; the two leading rear axles are driven while the third is of the trailing type.
Shown by Peter Hamilton Equipment Ltd., the Hy-Lift Mercury 15, a 15-ton telescopic-boom type with fly-jib, is mounted on the Foden Low-Line crane chassis. This unit is fully hydraulic and is claimed to be easily operated by one man.
Hydrocon mobile cranes Lambert Engineering Co. Ltd. is showing a number of its wellknown Hydrocon mobile crane models. Among those shown on the stand are three new models not seen at previous shows.
The widely used Huntly model which has a capacity of 8 tons can now be supplied with a fly jib which can be luffed out to the horizontal position.
A completely new 12.5-ton crane called the Hamilton is shown and this has a 115ft jib which can also carry a 33ft fly jib. This unit is equipped with a new and patented design of floating jib-head.
Another new Hydrocon model is the Hibernian which is mounted on a six-wheeled chassis and has the operator's cab slewing with the crane. And the largest of the new models is the Hebridean, a 20-ton unit also mounted on a six-wheeled chassis. This crane is equipped with a 115ft jib, all of which, like those mentioned above, can be carried on the vehicle when travelling.
With a capacity of 50 tons, the Hampden is mounted on an eight-wheeled chassis and is the largest model shown. This machine when fitted with a fly jib can lift to heights up to 190ft.
A truck-mounted crane is also shown by Muir-Hill. This is a fully stewing hydraulic type carrying a jib of up to 72ft long. An alternative 64ft main with a 15ft fly jib is also available.
A big display of mobile cranes is put on by British Hoist and Crane Co. Ltd., including road-going types with high performance. There are five on the stand all carrying the name Iron Fairy. The Garnet 4-ton capacity telescopic hydraulic crane is intended for fast operation and where low headroom exists. The Sapphire is a recently introduced 6-ton capacity version of the Garnet with a 30ft telescopic hydraulic boom. Another 6-tonner is the Six with telescopic jib; minimum operational headroom needed is 911.
The Onyx is the latest four-wheel-drive four-wheel-steer crane from the concern. The telescopic boom has a capacity of 10 tons nd the model gives high performance on rough terrain. Most scent introduction shown is the Topaz which has a 15-ton :lescopic boom with several new features. The machine demontrateS its rough terrain performance on the proving ground.
Capable of road speeds up to 45 mph and of carrying a 75ft jib ble to lift 20 tons; a completely new concept of mobile crane is hown by Muir-Hill. This unit retracts its wheels instead of lowerag its jacks for stability and the makers claim that this operation an be completed in a few seconds. It is powered by a Leyland 140 hp diesel engine driving ihrciugh a torque convertor to separate .ydraulic motors at each of the four wheels. Hydro-nitrogen uspension with variable rate and lock-out for crane duties permits he overall ground clearance to be adjusted from zero to 11.75in. The crane slews through 360deg and it can travel on site with :s outriggers extended. Taking up about half the space needed by onventional truck-mounted cranes of this capacity, it can, by tracting its wheels, turn completely about and travel in the oppote direction in one eighth of the space required by normal types.
lulk-handling equipment
A familiar name at exhibitions of this sort is Powell Duffryn :ngineering Co. Ltd., with Dempster bulk-handling equipment. 'ypes especially suited for use by building contractors are shown, le main items on the stand being a 13T Dinosaur, an 115 (Mark I) Dinosaur and a 5S High-Dump Dumpster.
The 13T Dinosaur is on a 22-ton-gross six-wheel chassis and ae container which can be used for loads of 13 tons is side staked carry long items or plant and machinery. The 11S is on a 16-ton aur-wheeler and its flat bulkhead container has a capacity of 10.5 lns and is designed for carrying bricks, tiles and similar products. The High-Dump 55 Dumpster has a 6 Cu. yd. capacity skip ontainer with lip making it suitable for the collection of household efuse in bulk, rubble and so on. Load capacity is 5 tons and the igh-lift feature enables the contents to be loaded into other vehicles. Other handling equipment of use to hauliers, in the shape of wry-loading cranes, is shown by both Atlas Hydraulic Loaders td. and Scanlift Ltd.
Those by Scanlift are very simple and designed to be driven then by battery-powered electric motor or by manual pump. Two models are shown. The AC loading cranes have lifting apacities of up to 5,5001b and will lift to heights of up to 126in. ith a variable reach of from 65 to 104.5in.
The smaller unit known as the 410 will handle loads of up to ,320Ib. This one stews through 360cleg and is powered by a ouble-acting hand-pump. When folded up in the transport posion it takes up a space of only 2.95ft by I.66ft square, and it reighs only 100lb.
fibre complicated designs
Units shown by Atlas are of more complicated design and they an be fitted with numerous types of grab. The 1400 units have maximum reach of 16.5ft and a maximum lift height of 20ft. The laximurn capacity is 3,0801b including grab.
Smaller types known as the 850 are specially designed for nailer commercial vehicles. These have a lifting capacity of up to ,3201b, a maximum lifting height of 10.15ft and a maximum ach of 9.75ft.
Trailers for use in transporting plant and equipment are featured y a number of manufacturers. Worthy of mention in this category the Timiser low-loading trailer/transporter shown by Robert Iudson (Raletrux) Ltd. Its rear wheels swing outwards for loading nd it is claimed that one man can prepare the trailer for loading
or unloading in under five minutes. The machine on show has a capacity of 14 tons. It complies with the latest Construction and Use Regulations, and is designed for use with a two-axle tractive unit for operation at 24-ton-gross train weight.
Alex Laurie and Sons (Trailers) Ltd. is showing four-wheel close-coupled trailers for the transport of plant.
Makers of engines for use in construction equipment are at Crystal Palace in force. The Leyland Motor Corporation has already been mentioned and engines shown include Leyland and AEC units with outputs from 60 to 377 bhp. To demonstrate the ability of these industrial versions, a Leyland 0.680 is shown on a mounting which is tilted up to 22.5deg laterally and 45deg longitudinally while the engine is running.
W. H. Dorman and Co. Ltd. is not a name normally linked with commercial vehicles at present. But, as reported exclusively in COMMERCIAL MOTOR last week, Dorman is now taking an interest in the truck market. The Ford D750 with Dorman 6DA aircooled diesel that was tested by CM is shown on the stand. Output of the unit as installed is 107 bhp at 2,600 rpm.
Dorman engines on show
Dorman is also exhibiting—for the first time—the latest development from its L series of water-cooled diesels—the 6LE—which can also be applied to vehicles. Output as an industrial engine is 169 bhp and accompanying the unit on the stand are other Dorman engines up to a V12 with a continuous output rating of 827 bhp.
The oil-engine division of Rolls-Royce Ltd. is showing a new turbocharged version of the SF65C which develops 250 bhp. Perkins Ltd. is also showing its range of industrial diesel engines. A re-designed version of the 4.326 with twin power take-off points is one of 12 engines on display.
Other engine manufacturers at Crystal Palace include Ruston and Hornsby with a range of air-cooled and water-cooled diesels with outputs from 3 to 245 bhp. Petters Ltd. is also at the exhibition and British Deutz Ltd. has the latest air-cooled industrial diesels from its German parent.
The 100 hydrostatic transmission which is already applied widely to industrial and construction equipment is featured once again by Lucas Industrial Equipment Ltd. And transmission units featured by Brockhouse Engineering Ltd. include the TTT torqueconverter power-shift model which gives three speeds forward and reverse. Also shown by the concern is the latest Model IIF which is suitable for use in conjunction with standard manual gearboxes since it permits the torque convertor drive and power-shift forward and reverse facilities to be used in conjunction with existing gear speeds; instant direction reversing is possible in any gear.