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THE ONEIDA CHASSIS.

9th March 1920, Page 16
9th March 1920
Page 16
Page 17
Page 16, 9th March 1920 — THE ONEIDA CHASSIS.
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Well-built American Petrol Chassis Ranging from i to 5 Tons, and A Novel 2-ton Battery Electric Vehicle.

CONSIDERABLE THOUGHT must have been expended, and a large amount of experimenting must have been done to produce the fine range of Oneida ch'assis. These vehicles, though of American production, cannot be classed with certain of the cheap American chassis which are at present on the British mar ket. Each chassis is a high-grade production, well designed, and incorporaang the best materials. • Models are built to cope with all classes of work, and the loading caPacities range from 11 ton to 5 tons in petrol-propelled eRassis. A 2ton electric battery driven chassis, which wewil describe more fully towards the

end of this article, is also manufactured.

The five petrol models are very similar, except in their size and strength of construction. Up to and including the 1ton, three speeds forward are provided, and, above that, four speeds. We propose in this article to deal in particular with the 4-ton model. The main differ ence between this and the 5-tonner is that the former has an engine of the ordinary type, whilst the latter has a special engine with overhead valves. To proceed with a description of the 4-tonner, the engine is a four-cylindered monobloc, provided with removable cylinder beads. These cylinder heads are

cast in pairs. The-valves are all on the off side and are operated by a stout camshaft supported in three white-metalled bearings. Oil is forced under pressur4 from a gear-type pump situated in the sump and driven from the camshaft, through the drilled crankshaft to the various bearings; no oil; troughs are provided. The timing gears and the engine governor are lubricated through separate tubes.

Provision is made for fitting an electric generator and starter, both of which can be neatly positioned at the off side a the engine. All the valves are enclosed by two detachable covers. In order to warm the mixture as it enters the engine, the inlet connection is situated very clOse to the exhaust manifold, which thus •transfers some of its heat to the mixture. Circulation Of the cooling water is obtained by a centrifitgah pump, which is driven in line with the magneto; cooling is 'assisted by a fan driven by a belt of adequate width and revolving in a housing. formed by the radiator shell.

The radiator is of the cast header and bottom tank type, protected by a stout barred frame.

The suspension of the engine is by two brackets cast with the flywheel housing, and by an adjustable trunnion bearing at the front end. The starting handle shaft is supported by a bracket bolted to the trunnion bearing, so that it is always in, line with the crankshaft.

The clutch is of the multiple-disc type, comprising 14plates of hard steel alternately faced with bonded asbestos_ fabric, and running dry. The clutch withdrawal gear is lubricated by a self-filling oil cup placed at the .base of the gear .shifting forks, au,d also by a tube running through the floorboards. The clutch and `flywheel are totally enclosed. A propeller shaft, provided with two fabric universal joints, conveys the drive to a four-speed-and-reverse gearbox situ ated amidships. This gearbox is also three-point suspended, the front end floating in a large bearing. The gear shifting rods are positioned in the cover, which, incidentally, is very large. provision is made in this gearbox for a power take-off and also for the fitting of an air pump.

The rear axle is of substantial proportions. The casing is a pot-type steel casting, and the axle shafts, which both drive and take the load, are especially heavy, and are turned from nickel-steel forging§.

Final drive is by worm gear, the who'e gear and differential being supported by a top cover.

Stout Lsection radius rods are provided. These are supported at their front ends by heavy brackets bolted to the frame side members.

Cast-steel tubular-spoked wheels are employed.

Both the hand and foot brakes operate on drums in the rear wheels, in both cases the shoes 'being of the internal-expanding type. Worm and nut type steering gear is fitted.

The front axle is a heavy forging with forked ends, the steering tielaar being situated behind it.

We have not yet made mention of the frame. This is of B-in, channel-section pressed steel, extremely strong, and extended at the front to form, with the front cross-member; a very effective additional guard to protect the radiator and engine in casb of collision. The Oneida 2-ton electric chassis is an. extremely interesting type. The single driving motor, which is series wound, is mounted on annular ball bearings, and forms part of the rear axle driving unit. It is enclosed, together with the necessary reduction gearing and differential, in the cast-steel rear axle housing.

This axle is of the full floating type, and is easily accessible. It has the advantage that, all the working parts' rim jams oil bath. A reduction of 16 to 1 is provided between the high-speed .motor and •the driving wheels by means of a spur gear with internal teeth meshing with a gear of only slightly smaller diameter with external-teeth. A differential gear is incorporated with this gear.

The frame is of pressed-steel construction, wen gusseted, and specially trussed to carry the batteries, which are of either the Exide or lead-plate type. Speed control is by means of a continuous torque drum-type controller, giving five speeds in each direction. A Sangamo ampere-hour meter, .which indicates the state of the battery charge at all times, is situated on the dash.

Very adequate braking is provided by two independent sets, both of the internal-expanding type, and operating

side by side in pressed-steel brake drams 18 ins, in diameter, bolted to the rear wheels. Both brakes are operated by pedal. and can be locked if desired.

The standard equipment includes attn. lery-type wood wheels fitted. with solid tyres. It should be noted that all Oneida chassis for the British market can be sup plied with right-hand steering. The petrol-driven vehicles have -central control.

The concessionnaires for this country are The British American Motor Co., Harley Buildings, Old Hall Street, Liverpool.

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Locations: Liverpool

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