Beaufort Motor Co., Ltd.
Page 14
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Principal Exhibit 1-3o-35h.p. Bus or Lorry Chassis.
Although booked in the catalogue as exhibiting three vehicles, only one was on view at the time of going to press. This vehicle is a 3o-35h.p. motorbus chassis.
The engine has cylinders cast in pairs, the bore of these being 120mm., whilst the piston-stroke is 13omm. The normal revolutions are 750 per minute, but the engine can be accelerated up to t,000 per minute if required. The camshafts and timing-gear wheels are
totally enclosed, and the cams are cut from the solid. Two ignitions are fated : these are high-tension ignition, by coil and accumulators, or low-tension magneto. The two systems are synchronised, and are adjusted by one lever on the steering wheel. A honeycomb radiator is .employed, and the water is circulated by a centrifugal pump.
The gear wheels are large in diameter, and are deeply case-hardened, and the steel from which these wheels are made is a special one ; with ordinary care they are found to last for 35,000 miles, or more. The gearshafts are fitted with D.W.M. ball-bearings, and similar bearings are fitted on each end of the differential half-shafts. The final drive is by roller chains, but Morse or Renold silent chains will be fitted toorder.
The necessity for a strong frame is fully realised be the makers, and the steel channel from which it is constructed has a section of 5,1 inches in depth. The transverse stays are strong, and are attached to the main side mem
bers by gussets and angle pieces. The details of the steering gear are heavy, and all pins are hardened. The wheelbase is 13 feet 3 inches.
Two chassis, identical to those shown at Olympia, have been on trial by the London General Omnibus Company, for the last few months, and are, we believe, giving satisfaction. The vehicles are plying on the Barnes to Oxford Circus route. Other vehicles, which have been supplied to India, and some of our Colonies, have rendered good accounts of themselves under severe service conditions.