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Liberty

12th November 1929, Page 174
12th November 1929
Page 174
Page 174, 12th November 1929 — Liberty
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BY reason of its recent introduction into this country, the Liberty rigid six-wheeler for 12-ton loads claims first attention. The four-cylindered 40 h.p. engine drives the forward axle of the bogie through an eight-speed gearbox, cardan shaft and a worm-and-wheel gear. The rear axle of the bogie is of the dead type and is located by two radius rods ; the driving axle, however, is positioned by its semi-elliptic springs which are pivoted at their forward extremities. Balance beams are used between the two pairs of semi-elliptic springs of the bogie. Oil reservoirs are built into the beams and shackles.

Braking is on the front Wheels and on the driving axle, servo-operating mechanism being installed. Interesting points in this machine are the cylinders, which are cast in pairs and have detachable heads, and the dual ignition. The chassis weight is 6 toes, and 42-in. by 9-in. tyres are used all rouud. Front and rear bumpers are specified, and a trailer-towing attachment is incorporated in the rearmost cross-member of the frame. Diagonal bracings are used to distribute over the frame the load imposed by a trailer.

The chassis is horizontal throughout and parallel in plan.

The four-wheeled tipping wagon has a 36 h.p. engine with the cylinders cast in pairs, pump cooling and dual ignition. The gearbox provides four forward speeds and the final drive is by worm gearing. The internal-expanding brakes are mounted in drums in the rear wheels, and the steel body is raised by means of a Woods hydraulic tipping gear. .4. towing hook also is provided on this chassis, it is designed to carry a pay-load of seven tons.

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