Motors for the Smithfield Show.
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Representative exhibits of steam tractors, agricultural motors and steam wagons will be shown at the Royal Agricultural Hall next week by 13 makers. Steam vehicles and tractors generally constitute by far the greater proportion of the motors at the Smithfield Show, and next week's fixture will prove no exception to the rule as only four makes of internal-combustion engined motors will be included amongst the exhibits. The several stands on which engineers' stores, etc., will be shown should not be neglected by visitors to the Show.
The following are a few particulars of the motor exhibits :—
Aveling and Porter [Stand No. 2).
From Rochester, a rubber-tired steam wagon will be amongst the exhibits which will be sent to represent Aveling and Porter, Ltd., the well-known builder of road locomotives. This vehicle, which has a large boiler of the Belpaire type, has its engine mounted over the boiler shell in approved traction engine style. The engine is of the compound type, and has a highpressure cylinder 3.1 in. in diameter and a low-pressure cylinder 61 in. in diameter. The piston-stroke is 0 in. In addition to the screwoperated band brake wh;ch is fitted to the back axle, a second brake, acting on the run of the flywheel, is provided. This vehicle is fitted with a board-sided wagon body, the sides of which are 18 in. high. It carries 3i tons.
Barlord and Perki AS (Stand No. 198).
Messrs. Barford and Perkins, of Peterborough, have booked space in the gallery of the main hall ; they will show one of their latest-type 35-cwt. 12 h.p. water-ballast rollers for agricultural purposes. It will take a strip 6 ft. wide, and it is equally suitable for use on grass land, for road patching or for rolling gravel paths. These rollers are being increasingly employed on large estates, race-courses, cricket grounds, golf courses, and by contractors, etc.
Burrell (Stand No. 29).
Charles Burrell and Sons, Ltd., of Thetford, one of the oldest among road-locomotive builders in this country, will send one of its latest steam tractors, of the type which won the Royal Automobile Club's gold medal a few years ago. Many important detail improvements, with a view to increasing efficiency and rendering the machine more generally useful, have been effected from time to time, all of which improvements are embodied in the example which will he sent to the Royal Agricultural Hall.
Clayton and Shuttleworth (Stand No. 27).
One of its latest five-ton, 25 b.h.p, steam tractors will he sent from Lincoln by Clayton and Shuttleworth, Ltd. This machine, which is a greatly improved model, was first exhibited at the Royal Show at Norwich. The main features in its construction are a Belpaire boiler, mounting the cylinder upon a, steel seating which is riveted to the boiler, enclosing the changespeed pinions in a gearbox and constantly running them in oil ; as the pinions are machine cut, perfectly silent running is obtained.
Daimler (Stand No. 82).
A newcomer at the Smithfield Show is the Daimler Motor Co., Ltd., of Coventry, which company, on stand No. 82, will show one of its new 30-40 h.p. agricultural tractors, which it has designed and built for service both in England and abroad. One of these machines, it will be remembered, was for the first time shown at Norwich. We reproduce an illustration of this tractor at work, hauling a five-furrow plough
On a farm in Warwickshire, in which county, we understand, it has done excellent service on heavy Jar d.
Garrett (Stand No. 20).
One of the new three-ton Garrett compoural superheated-steam wagons, as described in our issue of the 28th ult., will be shown by Richard Garrett and Sons, Ltd., of Leiston. This machine is fitted with one of Garrett's patent fullsize superheaters, and has balanced piston valves for the distribution of the superheated steam : the characteristic form of corrugated fire-box roof, which has been a standard feature of all Garrett boilers for many years past, is also embodied in this new model.
The vehicle is designed and constructed to carry loads of from three to four tons, and, as its ‘vheels are shod with solid-rubber tires, it may legally be driven at a speed of 42 miles an hour. In tests which were observed by a representative of Tim COMMERCTAL MoToe, which tests were recorded in the issue already named, it was shown that, for a 47-mile run with a net load of 31 tons, an average speed of 131 miles an hour was attained with a total coal consumption of 3.66 lb P per vehicle-mile, or 1.18 lb. of coal per net ton-mile, the water consumption meanwhile being at the rate of 8.07 lb. per net ton-mile. Another of Garrett's exhibits will be a five-ton steam tractor.
lye! (Stand No. 255 in Gallery).
We reproduce herewith a photograph which shows one of the latest Ivel agricultural motors driving a full-sized threshing machine during some trials to which it was recently submitted. The identical machine there shown will be exhibited at the Agricultural
Hall next week, The chief improvements which have been effected, during the past year, concern the lubrication. It has been found that drivers of agricultural motors pay very little attention this most important matter, and by the use of oil which contains all kinds of foreign matter run great risk of bringing about a stoppage of the pump, In the ordinary course of events such a stoppage would probably be noticed, as, of course, the engine would very soon begin to knock on account of the lack of oil, hut the average agri cultural-motor driver takes prac tically no notice of this warning, and goes on driving his machine until there is a serious breakdown. It is for that reason that lye! Agricultural Motors, Ltd., of 45-46, Poland Street, W., is now fitting very much larger pumps.
At the Scala Theatre, Charlotte Street, W., an excellent series of films in Kinemaeolor is being shown at the evening performances during the present week ; these films show the Ivel tractor at work for " the modern farmer."
Mans (Stand No. 22).
An agricultural steam tractor will constitute the exhibit of Mann's Patent Steam Cart and Wagon Co., Ltd., of Pepper Road Works, Hunslet, Leeds. The particular model which will be shown is that with wide outside back wheels, but it will be remembered that Mann's make another pattern with wide inside back wheels ; one of the latter type competed in the Baldock Trials of the Royal Agricultural Society of England, in August, 1910. In addition to their usefulness as oloughmg engines, these agricultural motors may be used for driving threshing machines or other barn machinery, and also for the haulage of loads of from five to six tons upon the highway. easily taking such gradients as are encountered on all the main roads and most of the by-roads in this country.
Marshall (Stand No. 12).
Marshall, Sons and Co., Ltd., of Gainsborough, for the first time we believe, will show a compound steam tractor. This new model is capable, when the engine is driven at a speed of 250 r.p.m., of giving b.h.p. at the belt for the purpose of driving threshing machines or any other form of machinery. As a haulage engine it is capable of taking a gross load of eight tons along all ordinary roads with inclines up to 1 in 12. This tractor has a Belpaire fire-box, and the boiler is constructed for a working pressure of 200 lb. per square in., and a tubular feed-water heater is fitted to ensure high efficiency. The change-speed gearing, which
is machine cut and is enclosed in an oil bath, provides for speeds of `Z2 to miles an hour.
Ransomes, Sims and Jefferies (Stand N J. 5).
The only exhibit of interest to readers of this journal, on the stand of Ransomes, Sims and Jefferies, Ltd., of the Orwell Works, Ipswich, is a 4 n.h.p., compound steani tractor, which is spring mounted over both axles, and is fitted with winding drum, haulage cable, water lifter and hose, geared feed pump, injector, governor, and all the usual and necessary boiler and other fittings. It is practically a small model of the well-known road engines which have been built for many years by this maker, with such modifications as were necessary to make the design comply with the requirements of the Heavy Motor Car Order.
Stundersoi (Stand N. 4).
Messrs Saunderson and Gifkins, of the Elstow Works, Bedford, will only exhibit two of their tractor models at the Smithfield Show. Of the two machines, one will be of the 15 h.p. type, and the other the largest of their make. It has a four-cylinder 50 h.p. engine. The small machine is particularly suitable for English farmers, and is capable of hauling one self-binder, a two or three-furrow plough, according to the depth of cut required and the class of land on which it is worked: it may be employed for general transport work in connection with agriculture. The 50 h.p. size is capable of cut. ting from four to six furrows, ana of transporting from 8 to 10 tons according to gradients. In our issue of the 16th inst. we gave tabulated particui -.rs of some recent consumption 6ests carried out
under the supervision of Mr. W. Worby Beaumont, which proved that this large machine is capable of ploughing an acre of land 5i in. deep in 34 minutes for the consumption of 21i pints of paraffin, the fuel cost per acre working out at under Is.
"Little Giant' (Stand No. 70 in the Gilbey Hall).
One of the "Little Giant" B2 type compound steam tractors, built by W. Tasker and Sons, Ltd., of the Waterloo Ironworks, Andover, will be staged by its makers in the Gilbey Hall, in exactly the same position as that occupied by this maker's exhibit last year. Side by side with the tractor a large threshing machine of the type which won the Royal Agricultural Society's prize for machines of that class will be shown. It is interesting to note that the little tractor is more than " man enough" to keep the thresher working at its full output. These tractors are among the most-powerful machines of their type, and are undoubtedly highly economical in working. As is usual with this make of tractor, the special type of spring mounting over the back axle, with a special arrangement of compensating levers is fitted. Wallis and Steevens (Stand No. 19).
Wallis and Steevens, Ltd., of Basingstoke, propose to exhibit, at the forthcoming show, one of its latest-type compound steam tractors, the engine of which is enclosed, so that all the working parts are running in a splash oilbath. Among recent improvements by this maker is the fitting of a balanced crankshaft and increased facilities for the adjustment of piston-rod and valve-rod glands, etc., as well as various other improvements in the matter of the adjustment of bearings and other wearing parts.