Improvements in a Six-wheeler Conversion
Page 74
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wE have from time to time dealt with the extension units produced by A. Ferraris, Ltd., of 200-220, The Broadway, Cricklewood, London, N.W.2, for the conversion of four-wheeled chassis into rigid-frame trailing-axle sixwheelers. In our issue dated July 29th, 1930, we dealt at some length with the latest Flex-Twin-Six converted Ford chassis, and on August 10th we explained how the Dodge Brothers TUG-type chassis was treated.
The company has now brought to our notice some improvemeats in the general system, these being demonstrated on a Dodge Brothers UF10-type four-cylinder 30-cwt. chassis, the normal wheelbase of which is 11 ft. 4 ins. The body space, behind the cab, works out at 12 ft. after conversion.
The principal modification concerns the radius-rod attachment. The rods employed are unaltered and have spherical bearings at both ends, but the fulcrum point for each drivingaxle rod is located beside the main frame member in front of the axle. This provides a more suitable arc of articulation. The alteration does not, in this case, affect in any way the brake connections, for the chassis has hydraulic brakes. Dodge Brothers wheels, brakes, etc., are fitted on the trailing axle, providing a good six-wheel hydraulic braking system, with excellent equalization of brake-shoe Pressure.
Heavier springs are now provided, each comprising 13 leaves, and the longest leaf has forged ends to form particularly strong eyes.