A TRAFFIC SIX-CYLINDER CHASSIS IN PRODUCTION.
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CHASSIS of Traffic make are well known and popular in this country, and users and others will, no doubt, be interested to learn that a new six-cylinder chassis is in course of production at the Traffic factory in the U.S.A. Deliveries have not yet commenced in this country, but North-Western Motors, Ltd., Norton Street, Liverpool, the sole concessionnaire here, expects them to arrive soon.
The new chassis is known as Model (1-50. It hug a _ maximum pay4oad capacity of well over 2 tons, a wheelbase of 11 ft. 7 ins., and a frame length from the rear of the seat of 9 ft. 1-pe ins., the turning radius is 22 ft., and the road clearance 8 ins. with 30-in. by 5-in, tyres, whilst the chassis weight is 1 ton 11 cwt. 3 qrs.
The six-cylindered engine is a Continental, typo 18-E, of 314n. bore and 4-in. stroke. The seven-bearing crankshaft turns at a maximum speed of 3,000 r.p.m., and the whole engine is three-point suspended In the frame. The crankshaft is drilled for pressure feed, the oil being circulated by a geartype pump to the main beatings, big
ends, gudgeon-pin bearings and timing gear.
Carburation is effected by a Zenith Instrument, to which petrol is fed by gravity from a pressed-steel tank located on the desh and having a capacity of 12 gals. A battery, coil and distributor ignition system is utilized.
A 16-in. fan is mounted directly behind the radiator, and the cooling water is circulated by a centrifugal pump. The radiator is a malleable-iron ousting with a tubular centre, and it is claimed that it is incorrodible. Engine, multiple-disc, serrated-tooth clutch and gearbox are mounted as a unit ; the gearing gives three speeds forward and a reverse. The pinions are of 3 per cent, nickel steel, the shafts being mounted on extra large ball bearings. A two-piece propeller shaft with two universal joints carries the drive te a Clark spiral-bevel rear axle.
Braking is carried out through all four wheels., the Lockheed hydraulic system being employed. The shoes are of the internal-expanding pattern.
Timken roller bearings carry all the wheels, which are robust steel castings.
The chassis frame is built of 6-iinn rolled-steel channels, the cross-members and end-members being strongly tied and gusseted.
Steerine' is facilitated by utilizing an 18ein, wheel in conjunction with the worm-and-wheel gear. There is a handthrottle control on the column, and the change-speed and hand-brake levers are centrally positioned. A foot accelerator is, of course, provided.
. The chassis is equipped with a full electric lighting and starting system, horn, tools and other accessories.