Aries.
Page 9
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AN interesting exhibit on this stand is a 4-5-ton lorry" which is unusual in the transmission arrangements adopted. The engine is of the orthodox 100 mm. by 160 mm. four-cylinder type with side-by-side valves, a point of note being that the fan operates within a circular cowl so as to improve the cooling efficiency; the water piping is of large diameter.
From the clutch the drive is taken through an open propeller shaft to a gearbox mounted only a few feet forward of the rear axle, this unit affording four forward speeds and being coupled by rods to a right-hand gearchange lever. The gearbox also houses the bevel drive, from which a pair of cross-shafts extend and terminate in a sprocket on each side of the frame. The shafts are adequately supported at their outer ends by hearings carried in substantial brackets bolted to the side members. From each sprocket a roller-type chain conveys the drive to a large chain wheel bolted to the rear wheel.
Braking arrangements include a large transmission brake mounted alongside the gearbox and a contracting brake fitted to a drum on each rear wheel. The latter is of interest in that the contracting member consists of a number of stranded cables placed side by side, in which a series of brake blocks is secured. The wheels are of the cast-steel variety, carrying solid band tyres and the springing consists of semi-ellipties fore and aft. In addition to the main semi-elliptic springs at the rear which are undersiung a smaller semi-elliptic spring is secured to the upper side of the rear axle at each end, the ends of which are turned over find are clear of pads on the side members when the lorry is running light. The addition of a load, however, brings the pads on the side members down into contact with tub ends of the auxiliary leaf springs, so that these take up a proportion of the load and not cnly relieve the main springs, but also enable these to be made lighter and more flexible,
Next in order of load capacity is a 4-ton lorry with a slightly smaller engine of 00 mm. bore and 150 trim, stroke, but otherwise of similar construction to the 5-tonner. "
Another exhibit is a 12-15 h.p. 1-ton boxv-an with seating accommodation for two at the front, the driver being protected by an overhanging canopy, rollup side curtains and a two-panel glass
windscreen. A four-cylinder engine is used, designed on lines similar to those of the lorry already described, but in this case the final drive is housed in an orthodox type of banjo axle and consists of a pair of bevers.
A similar chassis is shown equipped with a handsome coach body of the open type.
The smallest vehicle is an 8-10 hp. van to carry 12cwt. loads. Overhead, valves are utilized and the gearbox--which provides three forward speeds—is mounted as a unit with the engine, the control being centrally positioned. Final drive is by cardan shaft to bevel gearing.
Soc. Anon. Aris, 27, Avenue Marceau, Courbevoie (Seine), France.