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TRAILERS AT OLYMPIA
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Page 39
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A Quick Survey of all the Important Trailer Exhibits at the Show; a More comprehensive Selection This Year
AT this year's Show there will be a rather more comprehensive selection of trailers than was seen In 11129. Dealing first with the most uncommon type, on Stand 150 is a VickersArmstrongs track-laying 30-cwt. trailer suitable for . the worst of crosscountry conditions. On Stand 153 in the Empire Hall three )3rockhouse four-wheelers are displayed. The two smaller ones, a 2-tonner and a 45-tonner, are exhibited as Bare chassis and the largest, a sturdy four-wheeler for loads of six to eight tons, is equipped with a platform body.
This company has, in the past, specialized in smaller trailers under the name of Gibson, and examples of Gibson light all-steel trailer chassis are to.be seen on the same stand.
Undoubtedly the most imposing Cranes exhibit, on Stand 140, is a 10-ton timber carrier which has been perfected, one might say, in the past year or 18 months. It is an excellent machine for operation in conjunction with such trac tors as the Latil KTL type, an example of which is shown with it, and one of its leading features is the fitting, only recently accomplished, of 350 mm. by 20 mm. Michelin low-pressure tyres. This permits single tyres to be used on all four wheels, and these ride over soft muddy ground through which the highpressure tyres had to plough their way. The drag has a timber bolster at each end ; the forward one is attached to the channel pole and takes the fore-carriage and circle plates, whilst the rear bolster is adjustable on the pole for length. Both bolsters have removable stanchions and loading is effected with skids and winch tackle. A 7-tonner is shown, this having two main members tied at the front by the turntable pressing and at the rear by the usual cross-members. The turntable consists of two dished pressings, the top one welded to the base of the chassis frame and the lower one welded to the top of the fore carriage. At the centre of these is a bolster-pin casting with a tapered-roller thrust bearing. This renders man-handling of the trailer easy. Like the timber drag, this trailer has fully enclosed self-energizing brakes. The design of these brakes, as well as of the split-type road wheels employed, is well worth a study. The third machine on this company's stand is a 15-20-cwt, two-wheel trailer. On Stand 142 are some quite unusual Dyson products, the first to catch the eye being a 6-ton eight-wheeler mounted on two four-wheel bogies, the steering of which is inter-connected. Low-pressure 20-in. by 10.5-in. tyres are fitted, and there is a special anti-weaving device at each end, one of these being put out of action according to the direction in which the trailer is being towed. Mainly, this eight-wheeler is for overseas. Another unusual type is an 11-tonner .(gross load), the main frame and turntable frame of which are of channelsection duralumin. The trailer is 14 ft. long and its frame is of the full-width type. Other trailers on the stand incor
porate latest ,,Dyson improvements, including automatic brake application by the falling of the drawbar, self-energizing brakes, welded frames, etc.
On Stand 44 is a new Eagle turntable trailer with platform body which has been made specially to suit the Karrier Cob tractor. Beside it is one of the Eagle high-speed 5-6-ton trailers having pneumatic tyres, this being in chassis form. A similar model, but of 3-4 tons capacity, with a platform body is present. This type of trailer, having all the latest improvements in braking, bearings, etc., is built for high-speed work. A typical Eagle two-wheeled hydraulic end-tipping trailer suitable for use with tractors is shown and, finally, there is a 30-ton trailer mounted on four pairs of twin-tyren wheels, front and rear carriages being yoked together. Several of these trailers are in use by 311.R.S., Ltd., the famous heavy-haulage concern. A useful Eccles semi-trailer equipped with a horsebox body and suitable for use with the Chevrolet 30-cwt. chassis is shown on Stand 93, and a two-wheeler, suitable for towing behind a light vehicle demonstrates the suitability of this class of chassis for quite large horseboxes. It has accommodation for two animals. The company also displays a 2-2i-ton, fourwheeled general-purpose trailer and light luggage trailers, in which the Eccles concern specializes.
On the Harrow stand (154) are seen a 3-ton automatic tipping trailer, a 20
30-cwt. four-wheeler for use behind light vehicles, and a 3-4-ton four-wheeler incorporating all the Harrow patented features, such as the double-acting spring drawbar, pinjess turntable, etc. Additionally, a 12-15-ton six-wheeled trailer built under licence from Wm. Beardmore and Co., Ltd., forms an imposing exhibit, whilst finally there is a 2i-3-ton articulated ,six-wheeler attachment suitable for fitting to almost any chassis. All these Harrow trailers have electrically welded frames. A newcomer this year is seen in the Lindner make of trailer which is being shown by the British agent, John Phillipson and Co., Ltd., The trailers are made in Germany, but a proposition for manufacturing in this country is being considered. Examples displayed comprise a 5-ton side tipper with special traversing body, a 2i-ton non-tipping trailer (also a four-wheeler), and a light one-tonner of the single-axle kind with steadying jacks fitted at front and rear.
The Spenborough concern, well known in respect of its tipping gear, has on Stand 94, a 5-ton trailer with roller bearings, the chassis carrying the company's three-way tipping gear and a steel body suitable for sand and gravel haulage. Various models of the company's screw and telescopic tipping gear and relative components are also shown.
A tank-making concern which has exercised much ingenuity in the production of tank wagons of all kinds for various trades, such as those concerned with milk, petroleum oils and spirit, etc., is Thompson Brothers (Bilston), Ltd. On Stand 42 is seen a quite remarkable four-wheeled trailer tank wagon, the tank of which serves as the main frame. Apart from the saving of weight which results, a low centre of gravity is obtained.
• Other trailers, which are dealt with in our separate stand reports, appear on the Carrimore and the Scammell stands, and other semi-trailers on the Beardmore, Carrimore, Karrier, Lath, Re, Scammell and Vickers-Armstronga stands.