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Many Interesting Machines at

3rd February 1933
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Page 58, 3rd February 1933 — Many Interesting Machines at
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The Paris Agricultural Show

• Oil Engines Well to the Fore. Several New Models of Tractor. The Most Important Exhibition of Its Class Yet Held in Paris

THE motor-cultivator section of the Paris Salon de hi. Machine Agricola was considerably more important and interesting than usual, and it would appear that the agricultural tractor is, at last, making headway in France.

In spite of much State encouragement, remission of taxes, granting of subsidies, etc., the movement has made slow progress during the past 12 years. This circumstance is due, in part, to the essentially conservative nature of the French agricultural community, and to certain special conditions that govern farming across the Channel.

In the Show that has just closed, a line effort was made by both the home industry and foreign concerns, and the attendance was the best on record. Compression-ignition engines were, naturally, numerous, and the new Austin oilunit, which has not yet been shown in England, made an excellent impression.

Austin Oil-engined Models.

Three oil-engined tractors were exhibited by the French Austin Co., of Liancourt, in addition to a number of petrol tractors. Two of the new oil engines were also exhibited separately, both being four-cylinderecl models, one of 16-28 h.p. and the other 22-36 h.p.

These engines are of orthodox and clean design, incorporating overhead valves operated through push-rods and rockers, and employing the R.B. fuelpump, made by the French R.B. Magneto Co. The smaller engine has a bore and stroke of 95.25 mm. and 127 ram. respectively, and the 22-36 h.p. model 105 mm. by 127 mm. Both deliver their maximum power at 1,200 r.p.m.

The weight of the 16-28 h.p. unit is 2,100 kg. and that of the 22-36 h.p. type 2,300 kg. Geared-down hand starters are fitted and a decompresser is provided for starting purposes.

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The Allied Machinery Co. showed a novelty i.n the way of a small tractor called the Almacoa, which drives and steers on all four wheels. This usefullooking little machine has an overall width of only 62 cm. and is thus particularly suited to vineyard work and other special forms a cultivation.

The universal joint between front and rear axles allows a wide angle of movement and, in steering, the axles are swung in opposite directions, giving the tractor an extremely small turning radius. The machine has a four-cylindared 76 mm. by 101.6 mm. engine, developing about 16 b.h.p., and a threeforward-speed-and-reverse gearbox. The outfit weighs almost exactly a toil'.

Renault displayed three new models, including a big chain-track machine with the Renault six-cylindered oilengine and a small 8 h.p. (nominal) general-purpose tractor, The latter, arranged for field and road work, is likely to meet with much success in France, as it is marketed at a low figure.

The engine is an adaptation of that

employed in the Renault Normandy Camionette, suitably altered, for the particular work in hand. It is a 70-mm. by 95-mm. four-cylinderecl side-valve unit, giving 23 b.h.p. at 2,000 r.p.m. The big 50 h.p. chaintrack machine employs the wellknown Renault compression-ignition engine, with Bosch pump.

In appearance, it differs from former Renault tractors. There has been a general cleaning up in design, with the elimination of all projecting parts liable

to collect mud, etc. The other new Renault model is a medium-powered tractor with the four-cylindered oil-fl developing 20 b.h.p. at 1,000

r.p.m. Amongst other exhibits on the Renault stand was the hot-bulb-engine type of machine that has such an excellent record of good service.

Lanz, of Manheim, exhibiting through Its Paris agents, showed a new model of the famous Bulldog tractor with a slowrunning horizontal oil-engine. The special features of this machine are complete protection from mud and dust, combined with accessibility.

Anis Chalmers' Seven Eiilhibits.

Allis Chalmers showed seven tractors, including an entirely new model employing pneumatic tyres for field work, as well as an interesting cultivator. The giant pneumatics on the driving wheels of the field tractors are maintained at a pressure of about only M lb. per sq. in., and a remarkable degree of adhesion is said to be obtained. The low-pressure tyre for field work is becoming increasingly popular on Canadian farms, and this appears to be its first introduction into Europe.

A newcomer to the Paris Agricultural Show was the Alfa-Romeo concern, exhibiting a useful-looking miniature tractor, the engine of which is a fourcylindered 07-ruin, by 102-mm. unit, the cylinders being cast in one with the crankcase and having aluminium pistons. An overhead camshaft is employed and the engine develops its maximum power at 1,300 r.p.m. The weight of this little tractor,, equipped for field work, is 880 kg.

Small motor-cultivating machines were, as usual, a strong feature of the Show, Somua, PoIyeulteur, Energic, Bertrand, Tirfor, Gravely, Vermorel and other concerns displaying a wide variety of these useful and inexpensive outfits, ariven, for the most part, by air-cooled engines of the motorcycle type.

A remarkable exhibit in this section was the small oil engine shown by Polymoteur Dubois. This is a two-strokecycle supercharged twin-cylirdered unit with positive air-cooling. The complete unit weighs only 70 kg. The same company displayed a well-designed haycutter with a 750 c.c. four-cylindered air-cooled engine.

Ale-Thorns again showed its remarkable system of electric cable-ploughing, whilst, at the other end of the scale in this particular line, was the smallest cable-ploughing outfit yet produced-the Tirfor, displayed by the Couaillac concern. This machine employs an aircooled engine and is intended for market-gardening enterprises.

The Clayton and Shuttleworth organization exhibited, through its l3udapest agents, six large tractors imported from Hungary. The British Lister oil engine has been adopted by Th. Schneider, which showed a number of big tractors equipped with this make of power unit.

Vidal had on view a number of vineyard-type tractors employing the Climax oil-engine, which is now built in France, under licence, by the Chaise Engine Co., of Paris.

Impressive exhibits in the show were the gigantic combined reaping, binding and threshing machines displayed by the Caterpillar Company and AllisChalmers. There are few farms in France where these enormous maChines could be used with much suecess, but their appearance proved to be a great attraction to the public. The Caterpillar machine was shown with the harvesting and threshing mechanism in action. .

A new form of hollow-steel wheel for tractors employed on particularly heavy land was shown by Messrs. Depla, of Mee-bac, under the name of the Agrip. These wheels are designed to obtain the maximum adhesion on all surfaces and to ensure the evacuation of earth from the wheels when working on soft ground.

A feature noted in the Lanz oil-en glued tractors was the employment of lateral honeycomb radiators, divided into six easily removable blocks or sections.

Cletrac has adopted the Tjnic oil engine for its tractors marketed in 'France and exhibited a number of the machines. Deering showed several cultivating machines and farm tractors with close-coupled ploughs, and other agricultural implements.

The American contingent was, indeed, stronger than at last year's show, in spite of the serious difficulties experienced at present by those attempting to sell American goods in France.

A Tractor for Aerodrome Work.

Lorraine Dietrich had on view one of its Ara tractors adapted for aerodrome work, with the Johnson rubbercushioned flexible tracks, which allow aeroplanes to be hauled over the tarmac without damaging the surface. Eugene Battelle had the usual fine display of small tractors for road and field work, as also did the Fordson Co., which showed five of its well-known standard machines.

Latil had on view a big oil-engined tractor with the C.L.M. PeugeotJunkers engine, one of the K.T.L.-type outfits equipped for forestry work. R.I.P. also exhibited large tractors with the C.L.M. oil engine, which is enjoying a spell of great popularity in France at the present time.

A tiny motor cultivator worthy of special note was the Gravely. This has a motor-wheel of neat design. The engine is mounted on the hub and employs positive air cooling from a turbine fan on the opposite side of the wheel. One of these appliances was shown in the form of a hay-cutter, with chain drive to the cutting mechanism.

In spite of the difficult conditions existing in France, far more difficult than those living outside that country can imagine, exhibitors expressed themselves as well satisfied with the business obtained at the Show.


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