Packard.
Page 60
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Motor Coach. 5 ton Chassis.
STAND No. 52.
BLUM Agenis: The W. C. Gaunt Co., 198, Piccadilly, Landon, W.
THIS make of chassis was not long ago introduced to this country, but it has already created a, very favourable impression, and the exhibits shown on the Packard stand are doing much to im prove this. They consist of a 2 ton stripped chassis fitted with Goodyear pneumatic tyres, 36 ins. by 6 ins, at the front and 90 ins. by 8 ins. at the rear, a 3 tort chassis on solid tyres, and a. 28 seater char-A:banes body by Jas. Bartle and Co., Ltd. This also has pneumatic tyres, these being Firestones, 38 ins. by 7 ins, at the front and 44 ins. by 10 ins, at the rear. For inflating the tyres a two-cylindered Kellogg tyre pump is driven through a flexible leather coupling from the gearbox layshaft.
Dealing with the 3 ton lorry, the engine is a four-cylindered monobloc, lah.eaded with the valves on the offside. The bore and stroke are elf ins. and 5.L ins. reqsectively, and the speed is limited by a governor cf this centrifugal type operating direct on a separate throttle. The cooling water circulation through theotiater jackets and cast-iron. header-and-bottom tank type radiator is by means of a centrifugal. pump.
A clutch of the dry multiple-disc type
conveys the drive through a clutch shaft provided with flexible disc universal Joint:, to a four-speed-and-reverse gearbox suspended at four points from two cross members. Behind the gearbox is a very powerful foot brake provided with external-contracting sham
A propeller shaft with fork-and-pin type universal joints then conveys the drive to an overhead worm-driven rear axle. The tatter ia provided with a torque member supported at its front:end on a tubular cross-member which else carries the radius rods. Both the axle easing and the wheels are cast teel. The frame is of the same section throughout, and is perfectly straight.
The main differences between the chassis designed for pneumatic tyres and those for use with solid tyres are the provision of a special worm and wheel, giving a higher rear axle ratio, an engind with a bore of qa ins., a special highspeed governor, and the additon of a front hub hedometer. As regards the other features the chassis arealmost identical,