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THE ROYAL SHOW AT DERBY.

A Forecast of the Exhibits which will serve to Indicate the Efforts Being Made by Manufacturers to Meet the Varying Demands of Agriculturalists for Farming, Goods-carrying, and Passenger Vehicles, as Represented by Steam, Petrol, and Electric Machines.

SEVENTY-NINE annual shows have been held by, the Royal Agricultural Society during its 83 years of existence. Apart from five exhibitions in the neighbourhood of London, 41 different provincial centres have, in all, been visited, and Derby, which is chosen for the site this year, is being • favoured for the fourth time, the previous shows in this city having been held in 1843, 1881, and 1906.

Ow-rim:ton Park was the scene of the 1906 show, but since that time the property has been acquired by the Midland Railway Co., who have lent the local committee, which is fully representative of the county and city of Derby, the larger portion of the land required for this year's display.

Derby is well situated for such an agricultural show as the Royal, being, as it is, in the heart of the Midlands and 92 miles south-east of Liverpool and 129 mites north-north-west of London. The chief manufactures of the city are silk, cotton, lace, hosiery; iron, lead, chemicals, etc., silk being one of its staple industries. The continuance of the coal strike will probably affect railway travelling facilities to the showground, although the Midland Railway Co. hope to run cheap excursion trains on June 29th and 30th and July 1st and 2nd; these arrangements must, however, depend upon the conditions prevailing at the time. The motor coach will undoubtedly play its part in the transport of visitors from distant places, if the number of such vehicles which have recently been used at one or other of the county shows, and particularly at the Bath and West, is an indication of what is to be expected.

Most of the prominent British manufacturers will, as in previous years; be represented, and little or nothing is promised which is revolutionary in character, for in mast cases exhibitors are showing standard products. However, there are to be a, few new productions, of which our next issue will provide full particulars.

As we have done for several years past, we are publishing on the following pages a brief forecast of the various power-driven exhibits of outstanding interest to our readers, and this will be followed, in our subsequent issue, by a fully-illustrated report dealing with all the exhibits of petrol, steam, and electrically-driven vehicles which can be employed in the provision of power for farming and agricultural purposes. We reproduce at the bottom of this page a plan of the implement section of the showground, and for the guidance of our readers we have had blacked in the various stands -where power-driven industrial and agricultural vehicles will be shown.

Leyland. .

The Leyland exhibit at the Royal Show is always a most comprehensive one, and this 'year's display will be no departure from general practice. Seven machines will in all be shown on Stand No. .327.

On the goods-carrying side, three vehicles will be of interest, these being a 4 ton petrol chassis fitted with four-canpartment end-tipping body, a 3 ton sidetipping wagon, and a 6 ton standard steam wagon. The heavier petrol machine is fitted with a 36-40 h.p. engine, and the lighter with a 30-32 h.p. engine, the, former having a double reduction back axle, and. the latter a wormdriven component.

Two passenger-carrying vehicles will be shown, one a 28 seater motor coach with a 40-48 h.p. engine, and a singledecker bus to seat 32, which is fitted with a 36-40 h.p. engine. Each of these machines has a worm-driven back axle.

The final exhibit will be a standard 250-300 gallon fire-engine.

Thonrtycroft.

The well-known Basingstoke concern of John I. Thornyeraft arid Co., Ltd., will have two exhibits on view on Stand No. 325, the first being a 30 h.p. BT-type vehicle to carry 2 tons, and the second a 40 h.p. Q-type vehicle to carry 5 tons.

The 30 h.p. model is the latest Thornycroft production, and embodies an engine which has overhead inlet valves above the exhausts and a detachable cylinder top. Both engine and gearbox are assembled as one unit in a sub-frame. Final drive on this model is by overhead worm. This vehicle is being exhibited by arrangement with Messrs. Challands. Ross and Co., the Nottingham agents for Thornycroft vehicles, by whom it has been sold to Messrs. Jackson and Co., of that city. The 5 twiner is the largest Thornycroft model made, and it has 1 fourcylinder engine of 4 in. bore by 6 iu. stroke, and the usual Thornyeroft features. This vehicle will be complete 'with a lorry body suitable for the transport of agricultural produce.

Guy.

The Guy 2-4 ton chassis has not been subjected to any alteration in design during the last 12 months, and, in all, six examples of the chassis, fitted with different types of body, will be shown on Stand No. 317, these being a motor horse box, a steel tipping wagon, a livestock van for carrying sheep, pigs, etc., a farmer's vehicle with rack-sided body and spud wheels, which enable the vehicle to be used on soft ground as well as run on hard road without change of wheels, a single-deck bue, and a 30-seater char-abanes.

The Guy chassis is fitted with fourcylinder engine, having a bore and stroke of 4 ins. by 5k ins., which develops 25 h.p. The engine, clutch and gearbox form one unit, which is mounted in a sub-frame and is suspended from the main frame at three points. The gearbox provides four speeds forward and a reverse, and it conveys the drive to a double-reduction bevel and spur wheel type back axle. The wheelbase of the chassis is 12 ft. 4L ins., the track being 5 ft. A.E.C.

On Stand No. 338 four vehicles will be shown by the builders of London's buses, the Associated Equipment Co., Ltd., these comprising an S-type saloon omnibus, a market gardener's van, a 30-seater char-k-bancs, and a tipping wagon.

The 35Lh.i. S-type chassis has a fourcylinder engine with 108 mm. bore and 140 mm. stroke, which develops its maximum h.p. at 1,050 r.p.m. The clutch is of the dry single-plate type, which conveys the drive fo a, three

speed-and-reverse gearbox. The final drive is by worm, which is underslung.

The saloon bus has a seating capacity for 36, and it is electrically equipped throughout.

The market gardener's lorry is fitted with a body with adjustable crate sides in six sections, the length of the body being 12 ft.. 6 ins., and its width 6 ft. 6 ins. This bolly is mounted on a standard A.E.C. chassis.

'rho char-k-bancs body is mounted on a 3 ton chassis, is of exceptionally fine streamline design, and upholstered in real leather. A social compartment is provided, which is fitted with a table.

Michelin wheels and pneumatic tyres of 995 mm. by 155 ram. dimensions are fitted.

The all-steel, end-tipping body is fitted on a 4 ton Y.C.-type chassis. The body is tipped by means of a single telescopic ram. The hydraulic pump is totally enclosed, and is gear driven off the layshaft of the gearbox.

Clayton.

On Stand No. 48 Clayton Wagons, Ltd. (the associate company of Clayton and Shattleworth, Ltd.), will show a standard 5 ton wagon and a 3 ton endtipping wagon with patent independent steam motor for operating the tipping gear.'

There will also be a 6 hp. compound traction engine of the latest design, mounted on springs fore and aft ; a 7 h.p. single-cylindered traction engine, block mounted ; a 10 ton compound steam road roller, fitted with geared feed pump and injector; a compound steam road roller suitable for working under the Heavy Motor Car Act; and a 3 ton stan• dard type trailer wagon for haulage work. This trailer is mounted on rubbertyred wheels, and is fitted with a pullon brake, which can be operated from the footplate of i.he wagon drawing it.

Renault.

Two exhibits will be staged by Renault, Ltd., on their Stand, No. 319. One is a 3 ton chassis complete with military type lorry body, and the other a tractor of the chain-track type. The lorry chassis has a four-cylinder engine of 90 nun, bore and 140 mm. stroke. Following standard Renault practice, the radiator is mounted behind the engine. The gearbox is well forward, and is connected to the clutch by a short shaft and two ring-type universal joints. Four speeds forward and a reverse are provided by the gearbox, and a tubular cardan shaft conveys the drive to a bevel-driven rear axle.

The caterpillar tractor is the result of the experience gained by the company in the manufacture of light Tanks. It has a slow-speed engine and a largecapacity radiator.

Ford.

The ubiquitous Ford will be Mown on Stand No. 320 by A. R. Atkey, Ltd., of King Street, Derby. We do not know exactly what the actual exhibits will comprise, but we presume that a Ford delivery van and a 1 ton truck will be shown, whilst agriculturists will be particularly interested in the Fotclson tractor which will be exhibited.

We will not burden our readers -with a description of the Ford chassis, which 018 is known to the merest novice in corn mercial vehicle matters, whilst a description of the outstanding features of the Fordson• tractor will hardly he necessary.

Green.

Thomas Green and Son, Ltd., will occupy two stands, numbered 1 and 2 respectively. On the former they will exhibit their latest •pattern 10 ton compound steam road roller and a 56 ton motor roller, together with an improved type of independent road scarifier. On Stand No. 2 there will be half a dozen motor-driven lawn mowers, of various sizes and weights, to suit all requirements.

Marshall.

A most comprehensive series of exhibits will be staged by Marshall, Sons and Co.' Ltd., on Stand No. 53. Amongst these exhibits will be a 10 ton singlecylinder steam road roller and scarifier, a 7 h.p. single-cylinder steam traction engine, a 5 ton compound steam tractor, and a 5-6 ton universal tipping wagon.

The road roller embodies important constructional features. The first motion

gearing is arranged between the bearings; speed change is effected by one clutch and lever, and keys are dispensed with on the first countershaft by carrying the sliding ph:Ilona on a square.

The traction engine has the usual Marshall features.

Yorkshire.

The Yorkshire steam wagon isparticularly popular amongst commercial users, and it is the only type of steamer which employs a transversely-disposed boiler. The latter component is of the fire-tube type, and the engine is of the compound slide-valve type.

Three examples of the steamer will be shown on Stand No. 323 by the Yorkshire Commercial Motor Co., these being a 3 tanner fitted with patent mechanically-operated end-tipping body, a 6 tanner fitted with ordinary flat platform body 14 ft. long, and a patent vacuum galley emptier. This latter is also fitted on the heavy chassis. The company also hope to complete in time for the Show their new turntable tip wagon for either side or end tipping.

Commer Car.

A trio of exhibits will be shown on Stand No. 309 by Commercial Cars, Ltd, of Luton, these comprising a 4-4 ton farmer's lorry, a 2 ton lorry, and single-deck bus.

• The 4-4 ton lorry is fitted with it 32 h.p. four-cylinder 'engine of 110 mm. bore and 140 mm. stroke; final drive on this model is by roller chains. • Agriculturists who are looking for a dependable vehicle for the transport of market supplies will do well to examine this Commer Car model.

The 2 ton Commer Oar chassis will be fitted with a platform body with high hinged tailboard. A. feature of this 2 ton 25 h.p. four-cylinder chassis is the patent gearbox, giving three speeds forward and a reverse, in which all the gear changes are obtained by means of . dog clutches.

The single-deck bus is bound to -Ohmpel attention, if only on account of its brilliant red finish and shining silver work. This bus is designed to carry 28 passengers, the-entrance being at the front. With the exception of one row, the seats are arranged to face forwards. They are upholstered in dark green and well sprung. A gangway runs down the centre of the body, and the vehicle is fitted with disc wheels and pneumatic tyres.

Barford and Perkins

Part of Stand No. 47, which is devoted to the exhibits of Agricultural and General Engineers, Ltd., will be occupied by Barford and Perkins Ltd., of Peterborough, who are showing six of their water ballast motor rollers, ranging from the small machine of 1i -tons weight when empty to the size K, which weighs 11 tons empty and 14 tons when fully ballasted. Size K and size J, which, when empty, weigh 11 and 10 tons respectively, are drivenby a four-cylinder 35-40 b.h.p. engine. Both of these rollers are fitted with a gearbox providing two speeds forward and two reverse. The trolling width of each is 4 ft. 6 ins., and water sprinkler attachments are fitted to the back rollers. Size E35 weighs, empty, 7 tons, and is driven by a two-cylinder 20 h.p. engine. Size E weighs 64 tons empty, while size D4 weighs 5 tons empty.

Straker-Squire.

An A-type 5 ton Cha,ssis will be the exhibit of Straker-Squire, Ltd., on Stand No. 314. This chassis has a four-cylinder overhead-valve engine, with a bore and stroke of 4i ins. by Eqa ins, respectively, which develops 54 h.p. at 1,000 r.p.m. The clutch is of the ordinary single-disc type, and it conveys the drive to a four-speed-and-reverse gearbox, which, with the engine, is mounted in a three-point suspended sub-frame, and thence to a worm-driven rear axle.

The chief dimensions of the StrakerSquire chassis are :—Wheelbase, 14 ft. 6 ma.; track, 6 ft.; overall length (long frame), 22 ft, 8 ins., (short frame) 20 ft. ; turning circle, 53 ft. The post-war 5 ton Straker-Squire chassis has made many friends in the industry., and is well worthy of a visit from those journeying to the Show.

Halley.

A 35 h.p. chassis fitted with flat platform body, and a single-deck omnibus will be shown 'by Ha,lley's Industrial. Motors, Ltd., on Stand No. 330. The 35 h.p. chassis is fitted with six. cylinder engine, the cylinders of which are provided with detachable heads. The clutch is of the single-plate type, and it conveys the drive to a four-speedand-reverse gearbox, from which it is taken through a Worm-driven rear axle built by David Brown and Co Ltd The platform body is 12 ft. 6 ins, long by 6 ft. 6 ins, wide, and has a detachable tailboard. The bus body is boils on the company's P60 'type chassis of 14 ft. 7 ins. wheelbase, and the driver is accommodated well forward on the

offside of the engine. The body normally holds 31 passengers' but it is capable of carrying six more by the provision of gangway seats. The body is of wellseasoned English ash with panels of mahogany. The framing is of ash, which is panelled with whitewood. The windows, which are normally fixed, can be removed in hot weather to provide additional ventilation, although with a fanlight at the front, an open back, and two ventilators in the roof, this should hardly be necessary. The bus is finished in deep Naples yellow.

Maudslay.

The exhibits of the Maudslay Motor Co., Ltd., will comprise a 6 ton lorry fitted with platform body, and a. 5 ton lorry with mechanically operated sidetipping body. Both of the vehicles will be shown on Stand No. 311.

The Maudslay chassis embodies an overhead valve engine, the four cylinders being 5 ins, stroke by 5 ins, bore, which gives an R.A.C. rating of 40 h.p. A fabric-to-metal cone clutch is employed, which conveys the drive to an ordinary sliding-gear type gearbox, which provides four speeds forward and a reverse, the final drive being by double reduction gear, spur and bevel gears being used. The back axle is of the well-known banjo type.

The wheelbase of the 5 termer is 14 ft. 6 ins., and the track 5 ft. 6 ins., the overall chassis length-being 25 ft.

The 6 ton model possesses the same constructional details, its particular feature being the mounting of the driver's cab alongside the engine, which provides a body loading space of 22 ft.

Hanford.

Two vehicles will be shown by .T. and E. Hall, Ltd., on Stand No. 329, the first being a 4 ton vehicle and the second a 5 tonner.

The engine of the 4 ton Hallford chassis is a four-cylinder one, the bore and stroke being respectively 110 mm. by 140 inns., and it develops 32 h.p. at 1,000 r.p.rn. The drive is transmitted by an internal cone type clutch to a fourspeed-and-reverse gearbox, and thence through a differential countershaft, final drive being by roller chains. The 5 ton chassis is equipped with a slightly larger engine, whicn develops 40 h.p. • The lighter vehicle will be fitted with a cage body suitable for the carriage of agricultural and market-garden produce, whilst hand-operating tipping gear will be incorporated in the _other model.

Garner.

• Three Garner tractors and two Model 15 lorry chassis Will be shown • on Stand No. 303 by Henry Garner, Ltd. The Garner tractor is fitted with a four-cylinder 28 h.p. engine. The engine, gearbox and axle case are built together, so that all the driving mechanism is totally enclosed. The gearbox provides three speeds forward and a reverse, final transmission being by worm and wheel.

The Model 15 Garner chassis has a four-cylinder engine, three-speed gearbox and .double-reduction rear axle. One of the lorry chassis will be fitted with is market-gardener's body, whilst the other will be fitted with a special dual-purpose body for carrying goods and passengers.

Sentinel.

A 5 ton steel body tipping wagon and a standard 6 ton tilt van will comprise the steam vehicle exhibits of Sentinel Waggon Works (1929), Ltd., on Stand No. 144. The former is equipped with the well-known Sentinel hydranlie tip ping gear, the power for which is provided by the engine-driven feed pump. The Sentinel vehicle has a vertical boiler of the water-tube type carried before the front axle and fitted with super heater. The chassis is what is known as the under-type, as the engine is carried below in a horizontal position and disposed just behind the driver's seat. The fuel consumed is coke, and both vehicles are designed so that. they will carry their loads without exceeding the authorized axle weights.

Atkinson.

Atkinson and Co. will exhibit on Stand No. 336 one of their standard 6 ton steam wagons with the now well-known uniflow engine. The latter is the only engine of this type fitted to a commercial vehicle. It has two cylinders of the double-acting simple type, and the inlet valves consist of hardened steel balls operated by push rods from a camshaft. For the exhaust each piston at each end of its travel uncovers an exhaust port, which is

situated about the middle of the cylinder. The boiler is of the vertical type, with a trapdoor in the driver's footplate for firing .purposes.

The usual countershaft and changespeed gears are dispensed with, and the drive is taken straight from a sprocket on the cardan shaft, through a heavy chain, to a large chain wheel containing the differential gear.,

Foster.

On Stand No. 143 Wm. Foster and Co., Ltd., will stage a 7 h.p. compound road loco. fitted with winding drum and steel rope. This, incidentally, is the machine which is the most popular size for the showman's trade. The exhibits will also include a 5 ton compound steam wagon, on which is mounted a steel endtipping body with power-operated tipping gear this machine is fitted with solid rubber tyres of large section); a 5 ton compound steam tractor of the improved pattern, mounted on long springs to the rear axle and fitted with winding drum and rope ; and, finally, a 6 ton trailer monnted on laminated steel springs.

The Foster steam wagon is a fine production with a loco-type boiler and Belpaire type firebox ; it is geared to apeeds of 3 and 9 m.p.h. The final drive is by roller chain to the compensating gear.

Foden.

Fodens, Ltd., will be showing on Stand No. 170 three vehicles—a standard 5 ton steam wagon with platform body, having hinged sides and tailboard; a 5 ton end-tipping wagon similar to the above, but fitted with tipping body hydraulically operated and worked from the boiler teed pump; whilst the third and moat interesting exhibit an the stand wilt undoubtedly be the chain-driven steam tractor, which is capable of hauling loads of 8 to 10 tons at 6 m.p.h. The arrangement of this vehicle is true to the principles embodied in the Foclen steam wagon, viz., locomotive boiler, overtype engine and roller chain transmission. The boiler and engine fitted, however, are somewhat larger than those used in the company's standard wagon, although they are identical with those fitted in the overseas type. The rear wheels are fitted with. 180 mm. section twin solid rubber tyres, whilst single section tyres of 160 mm. section are fitted on the front wheels.

A drum carrying 50 yards of wire rope is fitted on the rear axle.

Robey

Robey and Co., Ltd., will exhibit on Stand No. 160 a 5 ton steam wagon fitted with rubber tyres. This wagon has been entirely redesigned, and it is claimed by the makers to be the lightest overtype wagon on the market. Both the front and back axle weights come well within the limit allowed by the law ; the front axle weight of the standard wagon with fuel and water and a 5 ton load on standard body being 3 tons 13 cwt. 3 qr., and the hind axle weight .7 tons 11. cwt. 2 qr., giving a total of 11 tons 5 cwt. 1 qr.

The position of the driver is such that his view of the joad, both in front and at sides, is absolutely unimpeded.

' The boiler is of the locomotive type of somewhat novel construction, and no stays are used. Ordinary gas coke can be used as fuel.

The company are also showing a 3 ton.

trailer fitted with rubber tyres. This trailer CAD be supplied with any kind of body, and tipping or non-tipping. The frame and forecarriage are built up of mild steel channels, and the wheels have pressed steel centres and caet-iron naves.

AiiChill.

The old-established concern of William Allchin, Ltd., Globe Works, Northampton, will display on Stand No. 145 two of their standard 5 ton wagons, one being of the usual fixed body type, made to the order of Hall and Co., Ltd., of R,edhill (the 1-5th repeat order for this concern), whilst tha other is fitted with a mechanical end-tipping body, the tip-ping gear being operated by the engine in conjunction with a friction clutch.

The Alichin 5-tonner is designed for a speed of 8 m.p.h., but a slower speed is provided to enable, the wagon to ascend severe gradients, the usual method being employed for the changing of speeds by a single hand lever, the power transmission being finally carried to the hind axle by a substantial roller chain from the conntershaft. The cylinder is of the compound type, and is fitted with double-ported 1)-type slide valves, which are operated by Stephenson-type link motion. The locotype boiler is designed for a working pressure of 200 lb. per Eq. in. Bristol.

The Bristol Tramways and Carriage Co., Ltd., will show on Stand No. 506 a 3-4 ton Bristol chassis fitted with a tipping body. A four-cylinder engine, which develops 48 b.h.p., with cylinders of 41 in, bore and. 5-t in. stroke, cast in pairs, is incorporated in this chassis. The clutch is of the single-plate dry type, Ferodo-lined, and the gearbox provides four speeds forward and a re

verse.

The body is built of 3-16 in. mild steel plate, all the inside riveting being flush with the sides. The sides and floor of the body are stiffened with Tsection mild steel, the whole being mounted upon two channel girders, which take the hydraulic rain mountings, and are attached to the chassis frame by two hinged brackets.

Mann.

Mann's Patent Steam Cart and Wagon Co., Ltd., of Hunslet, Leeds, intend to exhibit four machines on Stand No. 150, these being two steam wagons (one to carry 3 tons and the other 5 tons), a steam tip-cart to carry 5 tons, and a light steam agricultural tractor. These machines are standard in every respect and similar to others which have stood the test of time in actual work. They are all provided with compound horizontal engines fitted on top of locomotive. pattern boilers. The agricultural tractor is a similar machine to the one with which the company won the geld medal at the R.A.S.E. ploughing trials at Lincoln last year.

Tilling-Stevens.

On Stand No. 331 Tilling-Stevens Motors, Ltd., will exhibit a 4 ton petrolelectric chassis fitted with a patent electrically operated tipping body, in which the electric motor, which normally propels the chassis, is utilized to operate the tipping gear. This is brought about by disengaging the -cardan kshaft and engaging the tipping screw by a suitable clutch and gears. This is quite a new departure in tipping gears, and should 'attract considerable interest. An automatic switch is provided to prevent ever-winding, and is connected in such a manner that the circuit to the motor is broken near to each extreme movement of the body, but at any intermediate position the body may be moved in either direction. They will also be showing a petrel-electric double-deck omnibus, with a seating capacity for 57 passengers, and a. 21 ton gear-driven chassis fitted with an Eagle side-tip body.

Walker.

Walker Bros. (Wigan), Ltd., will exhibit on Stand No. 324 their special short wheelbase_municipal-type tipping wagon, the vehicle to be shown having been designed tomeet the requirements of the City Engineer of Liverpool in connection with narrosc passage work. The company claim that it is the only vehicle at present built which is capable of carrying a 3,5 ton load and operating in extremely confined areas.

The principal details of the chassis are a 40 h.p. Dorman subsidy type engine, a four-speed gearbox with gears of K,E.805 steel, and worm-driven rear axle. The overall length of the vehicle is kept as short as possible by arranging for the driver to sit alongside the engine. To assist manoeuvring a very generous lock is provided for the steering, and the track of the rear wheel has been reduced to 4 ft. 3i ins.

Massey-Harris.

Various agricultural implements suitable for work with tractors will be shown by Massey-Harris, Ltd., on Stand No. 70.

Included amongst these is a tandem disc harrow, the combination consisting of an out-throw followed by an in-throw, giving the effect of two cultivations by going once over.the field Much interest will certainly centre on the latest model light-weight tractor shown by the Austin Motor Co., Ltd., on Stand No. 326.

This tractor develops nearly one-third more power at the drawbar than the old model, and has been strengthened with regard to the differential and back axle. It is interesting to note that in Mesopotamia this machine showed the lowest fueland oil consumption and the 'lowest cost per acre.

An example of the new 50 cwt. Austin lorry will also be shown. This has the same engine and four-speed gearbox as the Austin Twenty car, thus facilitating replacements,

Newton.

The NeWten electric vehicle was very favourably commented upon when it was shown last year, and it should receiVe considerable -attention on Stand No.334, where it will be exhibited by Newton. Bros. (Derby), Ltd.

TV° motors are embodied in the drive, one being geared to each of the rear driving wheels, thus dispensing with the differential" The motors are mounted on springs in such a manner that no road shocks can he transmitted to them, except through two spring systems in series.

Whiting.

Whiting, Ltd,, on Stand No. 313, will show four vehicles. These will be a ton Whiting chassis on pneumatic tyres (single at the front and dua1 at the rear). On this chassis is mounted a dual-purpose farmer's tilt body, including driver's cab with doors and windscreen.

Two other Whiting vehicles are shown, both of these being 4-tonners. One is fitted with a farmer's stakebody and the other with an end-tipping body cotnpieta with cab and windscreen.

Only one Federal chassis, and this of 11 ton capacity, and fitted with plain platform body, will be shown.

Republic

Three vehicles will comprise the exhibits staged on Stand No. 307 by Republic Trucks, Ltd. The first is a 30 cwt. fast delivery van on giant pneuma tic tyres, the second a 30 cwt, chassis, upon which is mounted a special stake body .suitable for market-garden and dairy work. This vehicle also has a 30 cwt, trailer, and an illustration of it is included in this issee. The last vehicle shown is a 2 ton chassis carrying a special patented all-purpose farm body, which is practically nine bodies in one.

Republic chassis are provided with engines of Continental snake. .The clutches are of the bonded asbestos and steel plate type, running dry. The heaved model has four forward speeds and the smaller three forward speeds. Both -brakes operate on the rear wheels, and the drive is taken through a two-piece propeller shaft to a Torbensen internal gear dual-type rear axle.

Greenbat.

Industrial electric trunks are rapidli gaining popularity, and the 2 ton truck shown on Stand No. 19 by W. Good year and Sons, Ltd„ will certainly attract considerable attention.

In addition to its own load, this truck will tow a gross load of 2 tons on the level. It is equipped with 14 IroncladExide cells. The motor is of the total enclosed series-wound type, arranged for series-parallel control.

Parrett.

The Agri-Tractor Contract Co., Ltd., of Royston, Herts., -who are the sole concessionnaires for the Parrett tractors,

will be showing on Stand No. 155 one of these machines. It is fitted with a 25 h.p. Buda engine of 41, in. bore by 51 in. stroke. The engine is governor-controlled to 1:000 r.p.m., and

is placed laterally in the frame, which enables bevel gears to be dispensed with an4 the power conveyed direct through the gearbox to the final drive. The gearbox provides three speeds forward and a reverse.

The Parrett possesses rather an .unusual appearance: due to the radiator being placed lengthwise in the frame-, but this construction is claimed to prevent dirt and dust being drawn in by the fan.

Martin

A general-purpose agricultural tractoi and a collection of ploughs and cultivators designed for tractor work will be found on Stand No. 68, occupied by Martin's Cultivator Co., Ltd.

Of chief interest is the tractor. This is a four-wheeled machine, springmounted at both ends, and suitable for road haulage, tillage operations, and for driving machinery. The engine is a Dorman 4-cylinder nionobloc designed for paraffin fuel, the bore and stroke being ins, and 5 ins, respectively. The gearbox gives three speeds forward and a reverse, and is three-point suspended. This final drive. is by spur internal gears, these being totally enclosed

Saunderson.

One of the most successful tractors is that which will be shown by the Saunderson Tractor and Implement Co., Ltd., on Stand'No. 59. Actually, three Model G tractors, of 23-25 b.h.p_, and with three epeeds forward and one reverse, will be exhibited.

This type of tractor is capable of a drawbar pull up to 3,000 lb., whilst the drum pull is three times that of the drawbar. Its capacity varies according to conditions, but it can haul loads of from 5 to 6 tons, will plough 3 to 4 furrows at speeds of up to of en acre per hour, and will drive a fullsized threshing machine. 'Ender average conditions, and ploughing to a depth of 6 ins., its fuel consumption is 3 gallons per acre, Amongst other exhibits there. will be a 5-6 ton trailer with steet-built wheels and a patent self-lift plough, convertible for 2, 3, or 4 furrows.

E.B.

Melchior, Armstrong, and Dessau (London), Ltd., will show, on Stand No. 174, a 12-20 h.p., Model AA, E.B. tractor. This is a machine designed to run entirely on paraffin, and for this purpose the engine has low compression. The gearbox shafts run on roller bearings throughout.

One of the principal features is the employment of three separate systems of lubrication for the engine, these being pressure, drip, and splash. The machine is also fitted witaa.a brake operated from the clutch pedal. Dennis.

six vehicles in all will be shown on Stand No. 321 by Dennis Bros., Ltd., of Guildford. These will comprise a 60 h.p. 500-gallon fire-engine and 50 ft. escape, built to the order of Messrs. Bass Ratcliffe, and Gretton, of Burton-on-Trent, a 40 h.p. 36-seater single-deck bus, a 30-seater char-abanes, a 40 lip.5-6 ton tipping wagon, a 31-4 ton hinged-sided farmer's lorry, and a 2,21 ton hinged-sided lorry.

We would draw readers' attention to the 5-6 ton hydraulically operated tipping lorry, the body of which has been especially designed to deal, with road material, and is large efiough to take up to six tons of granite, stones, or tarred macadam. The floor is steellined, and the body is built 6 ins. wider at the rear than at the front to allow a lead to the material being tipped.

The 36-seater single-decker bus is mounted on a specially designed omnibus chassis, which has a wheelbase of 15 ft. 4 ins.

Merryweather.

As is usual, Merryweather and Sons, Ltd.., have been entrusted With the fireprotection arrangements of the showground, and on Stand No. 444 a petrol fire-engine of the latest design, as well as steam manual and chemical fire-engines will lie displayed. The patent Hatfield petrol engine is fitted with a four-cylinder unit of 50 b.h.p., and has a pumping capacity of 350-400 gallons of water per minute. The machine to be exhibited ..has been built for Slough.

Int( r aational.

Three vehicles will comprise the exhibit to be staged by the International Harvester Co. of Great Britain, Ltd., on Stand No. 163.

Of these, probably the most interesting will prove to be the Model S fast delivery lorry, with a carrying capacity of 15 cwt. complete with cab and express body. This little vehicle is designed for speeds of 25-30 m.p.h. The engine is a four-cylinder L-headed monobloc, with a bore and stroke of 31 ins. and 5 ins. re spectively. The clutch is a dry-plate multiple disc type, and the final drive is by internal gears. A 1 ton chassis complete with van body and equipped with 35 in. by 5 in. pneumatic tyres all round will also be shown, as well as a 2 ton chassis, on which will be mounted a collapsablesided lorry body.

Walsh and Clark.

A cable ploughing engine of the •internal-combustion engine type, designed to run on paraffin, will he shown on Stand No. 91. This is somewhat similar in design to the ordinary type of steam ploughing engine working on the two-, engine cable system. It has a large diameter winding drum and 450 yards of steel wire rope. The engine is of the twin-cylinder horizontally opposed type, and is on the top of the oil tank, which is shaped something like a. loco-type boiler. The gearing gives two speede of 41 and 2 m.p.h.

New Britain.

Markt and Co. (London), Ltd., will show on Stand No. 116 an interesting little cultivating tractor known as the New Britain. It is hoped that two models of this machine will be on view. They are practically identical, except that one has smaller-sized wheels and a non-extensible axle.

The No. 1 Model is unsuitable for ploughing, but Model No. 2 forms a very efficient ploughing machine for singlefurrow. work.

The engine is of the two-cylindered V-type, with a bore and stroke of 21, ins, and 4 ins. respect.ively, developing 6 h.p. on the pulley. The transmission is by spur and bevel gears, providing one speed forward.

Case.

A most interesting exhibit will be seen on Stand No. 176, occupied by' the J. I. Case Threshing Machine Co. It will include three 101.8 h.p. and one 15-27 h.p. agricultural tractors. The smaller tractors are adapted for either small or large farms. They are compact and built low, and are thus suitable for orchard work. They will pull two 14 in. plough.s in hard soil or three 12 in. under favourable conditions..

Vulcan.

Stand No. 318 will house the two exhibits to be shown by the Vulcan Motor and Engineering Co., Ltd. The vehiele will be a country carrier's passenger and hotel bus, and the other a farmer's and and dairyman's wagon. The former vehicle has accommodation for 11 passengers exclusive of driver. The passengers all face forwards, and a wide centre gangway, down which extra seats can be used; is provided. A large luggage compartment is incorporated at the rear. All the seats are removable, which enables the vehicle to be used as a van.

The wheelbase of the vehicle is 12 ft., the traCk being 4 ft. B ins., whilst the passenger compartment is 10 ft. 8 ins. long and 5 ft. 4 ins. wide, and the luggage compartment 4 ft. 9 ins, long and 5 ft. 4 ins, wide, both sections being 5 ft. 2 ins. high. The other vehicle is fitted with a hand-tipping body, which has two gates on each side, which can be used to divide the body into compartments. The tailboard reaches the height of the gates, and may be let down by a winch to form a runway up to the floor of the wagon. A swing derrick, operated by the winch, is also fitted.

Fowler.

One of the mostinteresting exhibits shown by John Fowler and Co. (Leeds), Ltd., on Stand No. 46, will be the new patented "change-over " device for convertible road rollers and traction engines.

Other, exhibits will be a. Class BB combined cable ploughing engine,. with 5-6 furrow, English type beve) frame

cable plough; the well-known "Fowler 20 " two-furrow motor plough; a road roller fitted with the Fowler-Wood patent sweeping, tar-spraying, and gritting apparatus, and, last, a 5 ton Tiger tractor.

Overtime.

The latest type Model N farm tractor, provided with two speeds for ploughing and harvesting, will be shown on Stand No. '77 by the Overtime Farm Tractor Co.

This machine has a powerful slowspeed engine with twin cylinders of 61 4n. bore and 7 in. stroke,

Peterbro.

Peter Brotherhood, Ltd., will show two examples of the Peterbro tractor on Stand No. 47. This tractor has been specially designed for heavy work. The engine runs on paraffin after it has been started on petrol. It has four cylinders, of 4g in. bore by E in. stroke, and develops 30-35 h.p. at 9001,000 r.p.m., at which speed it is governed. The engine design is made under Ricardo patents. The Clutch is of the cone type, Ferodo-lined. The whole of the transmission is enclosed in clustproof casing, and runs in oil; all shafts are mounted on Hyatt roller bearings. A belt pulley is mounted at the rear of the machine of 12 ins. diameter. The wheelbase of the Peterbro is 7 ft. 3 ins., its track being 5 ft.

One of the machines to be shown will be equipped with rubber pads.

McLaren.

The exhibits staged by J. and H. McLaren, Ltd., on Stand -No. 159, will include t pair of the company's patent motor ploughing wincllasses with suitable four-furrow anti-balance plough and seven-tine turning cultivator, an Unproved 5 h.p. compound traction engine, and one of the company's well-known 5 ton steam tractors, which can be used as an agricultural motor. It is hoped to include a 16 h.p. steam ploughing engine for the cable s,ystem.

U is of interest to note that the 5 ton agricultural motor won the gold medal of the R.A.S.E. at the Baldock Trials in 1910.

British Wallis.

On Stand No. 322 the British Wallis Tractor Co. will show three of their well-known tractors, which are manufactured by Ruston and Hornsby, Ltd. The British Wallis tractor has already been described by us in some detail.

There isno frame in the strict sense of the word, the engine and gearbox being carried in a boiler-steel II-shaped member, which acts as the crankcase and the lower half of the gearbox. Bolted to the rear end of this member is a casing c,ontaining the master gears. The engine is of the valve-in-hand type with

the four cylinders cast en bloc; it is specially designed to use paraffin as fuel. The clutch consist of metal and Ferodolined discs, and the gearbox provides two speeds forward and a reverse. The wheelbase is 7 ft., the tread 4 ft. 1 in., the turning radius 10 ft., and the drawbar pull 2,600 lb. at 21. m.p.h.

Shinn Piccarcl, Pictet and Co. (London), Ltd., will show, on Stand No. 132, an interest

lug rotary tilling and cultivating machine known as the Simar. This little machine can be used in places where larger machines could not be employed. The machine is mounted on two straight driving wheels, and behind this is a revolving sleeve carrying springmounted tines. At normal speed the tines revolve at 150 r.p.m. The power unit is a 2-cylinder 1i-type engine developing 7 h.p. at 1,200 r.p.m. Two forward speeds, giving 14 and 4 m.p.h., are provided, and the drive to the gearshaft is by steel worm and phosphorbronze worm wheel. The maximum overall width of the machine is 22 ins., whilst the standard width of tilling is 28

Ruston and Hornsby In addition to the three British Wallis tractors shown on Stand No. 322, three others will be exhibited by Ruston and Hornsby, Ltd., on Stand No. 60. • One of these will. be standard for agricultural purposes, the second will have a detachable steel band fitted over the spuds and a special drawbar, and the third will be the traction engine type with driving strakes for road haulage. Tho company will also have on view a 10 ton compound road roller with threetine scarifier, a 5 ton compound steam tractor with •winding drum. This machine will be spring-mounted. There will also be a 1-cylindered 7 h.p. traction engine.

• Blackstone: At the time Of going to press, we have not received particulars of the exhibits to be shown on Stand No. 47 by Blackstone and Co., Ltd.

This company mannfacture two types of tractors, one with creeper tracks and the other in which two ordinary driving wheels replace the tracks, whilst the front end of the chassis is carried by a pair of castor wheels.

The Blackstone tractor incorporates a three-cylindered engine which starts on compressed air.

Glasgow.

Three examples of the famous Glasgow tractor will be found on Stand No. 179, occupied by Wallace (Glasgow), Ltd. The Glasgow tractor has many outstanding features. Its three wheels are all driven, there is no differential, and, owing to its powerful tractive effort, it can plough on steep hills.

The four-cylindered engine has a bore and stroke of 4* ins, and 5 ins. respectively, and it can be arranged to run. either on petrol or paraffin. The gearbox provides a high speed of 5 m.p.h.,a low speed of 2* m.p.h., and a reverse of '2* m.p.h.

Ransomes A 4 ton Orwell electric lorry with totally enclosed cab, a 5-6 ton steam wagon complete with 3-4 ton trailer, and a compound steam tractor will occupy the stand of Ransomes, Sims and Jefferies, Ltd., which will be No. 162.

The electric vehicle has two motors with series-parallel control and a battery of 40 cells with a capacity of 258 amp. hours.

The,steam wagon boiler is of pressedsteel construction, made from four pieces of plate only.

Apart from those exhibits with which we have already dealt, the Eagle Engineering Co., Ltd., will show Eagle side-tir4ing trailers and combined sideand-end tipping bodies on Stand No. 85, and Take and Bell, Ltd., will have on Stand No. 128 a 5 ton either-side tipping trailer, and a, 1. ton Ford with a Constable end-tipping 'body.

We have received no particulars as to their exhibit's from the following makers and agents:--Aveling aria Porter, Ltd.; Blackstone and Co., Ltd.; H. G. Burford and Co., Ltd.; Chas. Burrell and Sons, Ltd.. Fiat Motors, Ltd.; Richard Garrett and Sons, Ltd.; General Motors, Ltd.; Hart Parr (England), Ltd.; John Lauson Manufaeturing Co.; North. Western Motors, Ltd.; and Unic Motors, Ltd