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13th March 1919, Page 14
13th March 1919
Page 14
Page 14, 13th March 1919 — MULTIPLE LOAD HANDLING.'
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.The Stamper Tipping Trailer and its Commercial Application.

ADESCRIPTION of the loading truck system developed by Capt. C. W. Stamper appeared in The Commercial Motor of December 13th, 1917... Our readers will remernber that the object of thia system was to enable the lorry to be performing useful work elsewhere during the unloading To aceom_plish this, on arrival at the end of the journey the loaded body was removed on to a special loading truck, and another body substituted, when the lorry went on its way to other work. In that artiele reference was made also to a tipping body that was developed by Capt. Stamper, on a very similar principle to that employed in the mechanical arrangements of the loading truck.

The tipping body has now been adapted to a trailer, the latter being intended for towing either by a motor lorry or by a heavy farm tractor. In the case of a motor lorry, where the weight of the engine, gearbox and other components is well towards the front end, a substantial counterbalance is automatically provided whereby the load May easily be -controlled during the tipping process ; with a trailer, on the other hand, there is very little weight in front of the last line of rollers to act as a controlling element for the load when about to tip. The Stamper tipping trailer has therefore been designed so that the centre of the axle underneath the hindmost line of rollers is behind the centre of the axle of that line of rollers. Consequently, when all the weight is thrown during tipping on to the last line of rollers (and the load is being controlled by a rope passing over the front pulley),. the tendency is for the weight and control to transmit the resistance to the front wheels ; and thereby the chassis is prevented from tipping up during the operation.

Reference to the illustrations (of which the subject is a-vehicle built to the order of Burford and Co., of Regent Street), will enable the substantial half springs to be seen, which serve to reinforce the rear roadspring, when that member is subjected to sudden And excessive overloading due to the tipping of the body. The actual operation of tipping is accomplished in the same way as was the case on the lorry body previously described, a hand winch being used. After the load has been tipped, the body is easily pulled back on to the chassis, arid falls down quite lightly upon the rollers: it then passes over the locks, which automatically render the body safe on the chassis. Two of these locks are seen in the ' illustration.

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People: C. W. Stamper

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