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EMPHASIS ON EARTH-MOVING

Civil-engineering Products Stimulate Production of Heavy Equipment : More American Appliances Becoming Available in this Country

STIMULUS has been given to the production of earth-moving equipment in this country by the progress being made with the new motorway system and other major construction projects. This

is reflected in the multiplicity of such equipment which will be shown at the Public Works and Municipal Services Exhibition which opens at Olympia on November 10 and closes on November 15.

A number of American concerns has recently set up subsidiary production companies here, and their products on display will be more prolific than before when import difficulties restricted their appearance. Nearly 400 exhibitors have stands this year, and the exhibition will be open daily from 10 a.m. to 6.30 p.m.

Dumpers

WITH a payload capacity of 28 tons, the dumper to be shown by Fodens, Ltd., Sandbach, Cheshire, will be the largest on display (Stand 333). Known as the Model FR.6/45, it is powered by a Rolls-Royce turbocharged engine which develops 300 b.h.p. at 2,100 r.p.m. The drive is taken through a 17-in.diameter over-centre Rochford clutch and a three-stage gearbox incorporating a torque converter to the single double-reduction rear axle. Power steering is a standard fitting and full air brakes are provided in conjunction with a disc-type transmission brake mounted behind the gearbox.

Also powered by Rolls-Royce is the four-wheeled SN dumper which will be included among the exhibits of Aveling-Barford, Ltd., Grantham, on Stands 72-97. In this case a 400 b.h.p. turbocharged oil engine is used in conjunction with a conventional six-speed transmission. The vehicle has a 20-cu.-yd. tipping body and can carry a 27-ton payload.

'Six-wheeled chassis with double-drive rear bogies are a Popular basis for heavy-duty dumpers for use on and off the road. Transport Equipment (Thornycroft), Ltd., Basingstoke. will have such a vehicle on Stand 47, It is a Big Ben 6 x 4 chassis of 16-ft. 2-in, wheelbase, on which is mounted their own plastics cab and a 15.2-cu.-yd. struck capacity scow-ended body and tipping gear manufactured by Telehoist, Ltd. Powered by the K RN.6 oil engine producing 155 b.h.p. at 1,900 r,p.m., the vehicle has an eight-speed transmission.

Of similar layout is the Dumptruk to be exhibited by

A.E.C., Ltd., Southall, Middlesex (Stand 89). Now offered

with only one standard specification, this 6 x 4 chassis incorporates a number of features which were previously optional alternatives at extra cost. These include an 11.3-litre 150-b.hp. oil engine and a five-speed constant-mesh gearbox specially designed for dumper use.

Edbro-B. and E. tipping gear fitted to the Show vehicle tips the 10-cu.-yd. body to 70° in 12-14 sec. The Dumptruk is suitable for a gross weight of 24 tons when not restricted.

All-wheel drive distinguishes the Mountaineer dumper which will be found on Stand 85 of Searnmell Lorries, Ltd., Watford. This four-wheeled chassis is powered by a Leyland 150-b.h.p. oil engine and incorporates a number of design changes from previous appearances. The front axle is now suspended on coil springs, -a layout adopted first for the Super Constructor, whilst hydraulic power assistance is provided for the steering. A six-speed gearbox is used and front-axle drive may be engaged when the vehicle is in motion or stationary. Hydraulic tipping gear gives a 72° angle of tip for the 8-cu.-yd. body.'

Recently introduced by the Chaseside Engineering Co., Ltd., Aldwyat House, London, W.C.2, is their D5 high-speed dumper which will appear on Stand 60. This machine is arranged for use with equal facility in forward or reverse motion, having two-way steering and a transmission giving 10 similar speeds in either direction. It is powered by a 6l.5-b.h.p. oil engine and' can carry a payload of 13,500 lb. in its hydraulically discharged hopper.

Incorporating the Meiller system for self-loading or unloading of detachable skips is a 4+-cu.-yd. dumper to be shown on Stand 213 by E. Boydell and Co., Old Trafford, Manchester. Known as the Muir-Hill 14B, it has full hydraulic control for the loading and unloading. procedure, whilst the skips may also .12e tipped_ Automatic stabilizing jacks are incorporated to relieve the chassis of undue. strain when lifting is being done.

A separate concrete bucket which can he lifted on or off the vehicle by a crane will be shown on a Benford four-wheeled oilengined dumper on Stands 202 and 214. The dumper used is the Mark 7. The makers are Benford, Ltd., The Cape, Warwick.

Removable skips are also a feature of the Multi-Skip dumper to be exhibited by the Thwaites Agricultural Engineering Co., Ltd., Cubbington, Leamington Spa, on Stand 81. The dumper chassis incorporates the lifting gear for the skips.

T'HE Caterpillar Tractor Co., Ltd., Glasgow, will display their I latest D8 crawler tractor (Stands 210 and 224). It will be equipped with a hydraulically controlled bulldozer blade and a towing winch. Power is provided by a 225-b.h.p. turbocharged oil engine driving the tracks through a transmission giving six speeds forward or reverse. The complete unit weighs 46,734 lb.

A cable-operated angledozer is fitted th the Allis-Chalmers HD.16 crawler, tractor to be shown by Mackay Industrial Equipment, Ltd., Feltham, Middx,. on Stands 86 and 87. The tractor has a torque-converter transmission which, combined with 150-b.h.p.. oil engine, gives a maximum drawbar pull of 60,000 lb., assuming that there is no track slippage. Having a conventional transmission giving six speeds forward and three in reverse is another Allis-Chalmers crawler, the HD.516, which will also be displayed in company with an HD6G model fitted with a loading shovel incorporating a hydraulic ripper.

The only wheeled Allis-Chalmers vehicle on show will be their Tractotnobile TL20.D loader. This has a loading shovel of 2-cu.-yd. capacity, four-wheel drive, a 100-b.h.p. oil engine and a three-stage transmission incorporating a torque converter.

Mackay will also have on show two Fiat tractors. One is a 6.0C.I model powered by a four-cylindered oil engine coupled to a gearbox providing five speeds forward or reverse. A feature of this gearbox is the ability to shift from the lower four forward gears directly into the corresponding reverse gear. The tractor will be equipped with a Bray-Mackay 10-ft. 7.1-in. wide angledozer plate. On show for the first time will be the Fiat FL.4 tractor with a shovel attachment.

An unusual layout is employed for the Euclid TS.24 twinpowered scraper. It incorporates a motive unit at each end of the articulated unit, power being provided by Cummins NHS oil engines producing 200 b.h.p. at 2,100 r.p.m. Drive is through an Allison gearbox incorporating a torque converter and four forward and two reverse speeds. The complete unit has an overall length of 45 ft. 7 in. and a turning circle of 74 ft. A struck capacity of 24 cu. yd. of _spoil is provided. It will be shown by Euclid (Great Britain). Ltd., Lanarks, and Blackwood Hodge, Ltd., 25 Berkeley Square, London, W.1, on Stands 44 and 45. They will also display a Euclid C.6 crawler tractor.

Positive hydraulic control gives the scraper to be shown by David Brown Construction Equipment, Ltd., Feltham, Middx, increased downward pressure on the cutting edge (Stands 313 and 314). It is capable of scooping up 34 cu. yd. in one bite, has a maximum heaped capacity of 5 cu. yd. and is designed to operate with the David Brown 50.TD tractor which is also to be shown.

This tractor has a 50 b.h.p. oil engine and a six-speed transmission. It will be fitted with a hydraulically operated angledozer. A special version of the 50.TD chassis will carry the recently introduced Overshot loading gear, which allows discharge at the front or rear of the machine.

Largest wheeled tractor will almost certainly be the 380 bulldozer to be shown by Michigan (Great Britain), Ltd., Charles II Street, London, S.W.1 (Stand 321). It is powered by a 375-b.h.p. turbocharged oil engine and its specification includes four-wheel drive and Power Train transmission giving four speeds forward and reverse. The dozer blade fitted is 20 ft. wide.

Loading shovels with four-wheel drive are manufactured by Bray Construction Equipment, Ltd., Feltham, Middx, and three of these will appear on Stand 40. The BL.430 is powered by a Ford 51.8-b.h.p. oil engine and has power-assisted steering. A Perkins 62-b.h.p. oil engine powers the BL.450, which has a torque converter combined with a hydraulically operated 'epicyclic gearbox for the transmission. The BL.460 has a single-stage two-phase torque converter behind its Leyland 110-b.h.p. engine, and full air-pressure brakes.

Fully automatic transmission is a feature of a new loading shovel which is to be shown by Chaseside Engineering Co., Ltd. (Stand 60). All-wheel-drive of four equal-sized wheels is provided by a 148-b.h.p. oil engine. With a top speed of 27 m.p.h., this machine, called the Loadmaster 3,000, has a pry-out " force of 22,500 lb. and can lift a 10,000-lb. payload.

Versatility is the keynote of the Bristol Duplex angledozerplus-loader which will be displayed by H. A. Saunders, Ltd.. Worcester, on Stand 117.

A loading height of 12 ft. combined with a good forward reach is provided by the 12 1-1 loading shovel which will be found on Stand 244, occupied by F. E. Weatherill, Ltd., Welwyn Garden City. Scoop sizes available for this machine vary from 1-2 Cu. yd.

A Fordson Major-based heavy-duty loader is to be shown by Skyhi. Ltd., Isleworth, Middx (Stand 46). Also shown will be a light loader for fitting to Fordson and Nuffield tractors and a new medium-duty model.

Additions to the range of buckets for their Dinkurn Digger Major tractor-mounted forward, shovel will be among the exhibits of Whitlock Bros., Great Yeldham, Essex (Stand 49). Ernest Doe and Sons, Ltd., lilting Maldon, Essex, will presen: a wide range of equipment for which they are the agents on Stands 343 and 344.

A 7-ft-wide blade will be fitted to the four-wheel-drive angledozer to he exhibited by Roadless Traction, Ltd.. Hounslow, Middx (Stand 655 and 656).

Four-wheel-drive and steering are incorporated on the Mastiff loading shovel to be shown by Mathew Brothers, Wallington, on Stand 92.

Claimed to be the fastest crawler tractor in the world, ihe Vickers Vigor will he on Stands 232 and 241 (Jack Olding and Co., Ltd., Hatfield, Herts).

Displayed in prototype form will be a crawler tractor manufactured by W. G. Bagnall, Ltd., Stafford (Stand 309). A novel feature of this machine is the use of a hydrostatic transmission to give an infinitely variable speed up to 7 m.p.h.

Other tractors will be shown by the Ford Motor Co„ Ltd., Dagenham, Essex, on Stands 638 and 641, and Massey-Ferguson (Great Britain), Ltd., Coventry, oh Stands 549-551.

Municipal Appliances

USTLESS loading of lidded bins by air-pressure-operated

apparatus is provided on the Speedyload refuse body to be shown by the Eagle Engineering Co., Ltd., Warwick, on Stand 220. It will be mounted on an Austin 7-ton forwardcontrol chassis.

An internal screw is used to pack the refuse in the Haller 14-28-cu.-yd. body to be exhibited by Glover, Webb and Liversidge, Ltd., 561 Old Kent Road, London, S.E.1 (Stand 225). It will be mounted on a Karrier oil-engined chassis and will incorporate a Zoller dustless-loading shutter.

A novel exhibit by Scammell Lorries, Ltd., Watford (Stand 85), will show a new use for their three-wheeled mechanical horse chassis. It now forms the basis for a small, highly manceuvrable refuse vehicle with a 6-cu.-yd. side-loading refuse body. A turning circle of less than 20 ft. and a payload capacity of 35 cwt. are achieved.

In addition to a range of their fore-and-aft tipping refuse vehicles, Shelvoke and Drewry, Ltd., Letchworth, Herts, will have on Stands 230 and 243 an 800-gal.-capacity gully and cesspool emptier and a 113-cu.-yd. side-loading collector.

Interest in the display by Karrier Motors, Ltd., Luton (Stand 209), will be centred around the Gamecock chassis, which incorporates the new Perkins underfloor oil engine. Mounted on it will be a 10-12-cu.-yd. side-loading refuse body with a seven-seat crew cab.

Sidney Hole's Electric Vehicles, Brighton, will exhibit pedestrian-controlled street orderly refuse vehicles on Stand 439, and Dennis Bros., Ltd., Guildford, will display their range of refuse collectors on Stands 239 and 240.

Pride of place among the exhibits of Lacre Lorries, Ltd., Welwyn Garden City, Herts (Stands 353 and 354), will be taken by the recently announced high-speed sweeper for airfield runways. It is capable of sweeping speeds of up to 16 m.p.h.

Three sweepers will be displayed by Lewin Road Sweepers, Ltd.. 25-26 Hanover Square, London, W.1 (Stand 219). They will be the Sweepmaster, which gives variable sweeping widths of from 6 ft. 4 in. to 7 ft., the Mechanical Orderly for sweeping widths from 4 ft. 9 in. to 5 ft., and the Universal pedestriancontrolled model.

A sweeping speed of 3 m.p.h. is provided by the Litterlifter to be exhibited by the Yorkshire Patent Steam Wagon Co., Ltd.. Hunslet. Leeds, on Stand 509.

Road-gritting appliances for fitting to vehicles without modification will be exhibited by Tuke and Bell, Ltd., Lincoln's Inn Fields. London, W.C.2 (Stand 531), Atkinsons Agricultural Appliances, Ltd., Clitheroe, Lanes (Stand 106), and the Plicenix Engineering Co., Ltd., Chard (Stand 107).

Snow-ploughs and blowers for tractor mounting are to be shown by William Bunce and Sons, Swindon, Wilts (Stand 24). in addition to a motorized footpath snow-plough. Selfcontained snow-ploughing equipment will occupy Stand 218. Rolha Co., Ltd_ Rochester Row, London, S.W.1. The largest plough in the Show will be found here on a Mercedes truck.

Hydraulically raised platforms to facilitate maintenance to overhead installations are used by many authorities. Such a platform for fitting to their standard power shovel will be shown by Whitlock Bros., Ltd., Great Yeldham, Essex (Stand 49).

A truck-mounted hydraulic platform is to be displayed by Simon Engineers (Midlands), Ltd., Dudley, Worcs (Stand 234).

Concrete Mixers and Transporters

QUITABLE for transit mixing of dry materials or for agitating

a pre-mixed load is a vehicle-mounted concrete mixer to be shown by Ransomes and Rapier, Ltd., Ipswich, on Stands 62 and 63. Powered either by a separate oil engine or from a gearbox power take-off, the mixer will agitate 4i Cu. yd. of pre-mixed concrete or will produce 31 cu. yd. of concrete from an unmixed 5-cu.-yd. batch.

Deriving power for its operation from the front end of the vehicle engine crankshaft, the Winget Challenge concrete mixer for truck mounting is unaffected by gear changes when the vehicle is in motion. it will be shown by Winget, Ltd.. Rochester, Kent, on Stands 64 and 65.

Probably the largest mixer fitted on a road vehicle at the Show will be the Rex Adjusta-Waite model exhibited by Blaw Knox, Ltd., 44 Brompton Road. London, S.W.3 (Stands 212-222). It will be mounted on a Leyland Hippo chassis and has a mixing capacity of 6 cu. yd. and can agitate up to 71 cu. yd. of ready-mixed slurry.

An.improved version of their Telecrete ready-mixed concrete transporter will be shown by Telehoist, Ltd., Cheltenham (Stand 310). Mounted on a Bedford 7-ton 116-in.-wheelbase chassis, the tipping 3-cu.-yd. bucket now incorporates a powerdriven agitator to delay setting of the load.