Travelling:

During the 12 month's trial period it became evident that a number of items, such as the rear steady posts, front castor wheel and wheel ramps, required strengthening to survive the treatment encountered under actual working conditions.

Due to the variations in height of towing connections on the vehicles used for towing it became apparent that there was insufficient clearance beneath the rear of the trailer where intersections of severe road cambers were met. In order to give greater clearance, the rear of the chassis has been swept upwards and the trip rollers raised slightly to raise the rear of the kiosk in the travelling position. The kiosk remains held in this position by the clamp and rests upon two rubber buffers at the forward end and upon the pair of rubber-faced trip rollers at the rear. Lowering the height of the front buffers has enabled the low centre of gravity of the original laden trailer to be retained.

When the trailer is travelling unladen, the radius arms are wound down so that the bolster rests on the assistor lever with the two clamping arms clipped together. The clamping plate is stowed across the front of the chassis in such a way that one padlock will secure the clamping plate and the pair of wheel ramps.

As with the earlier type of trailer, the balance of the laden trailer about the road wheels is as nearly complete as practicable, consistent with the normal small downward load on the tow bar required from the road-towing aspect. Also by the use of quarter elliptic springing and low centre of gravity, the smooth travelling has been retained.

Placing on Site:

The design of the trailer caters for the handling and carrying of No. 6-type kiosk from any of its four sides and it is desirable from the practical point of view to know, on its working site or if any obstruction is to be avoided. Without this knowledge it may be necessary after arrival at the site to unload the kiosk and again pick it up from a more suitable side. Adjustment of the front castor wheel and rear steady posts is necessary to suit the variety of conditions met when placing a kiosk. To assist in this operation, a broad arrow is painted on the nearside of the chassis in line with the position taken by the front edge of the kiosk when placed down.

Performance:

Normally, two men are necessary to operate the trailer successfully. The time taken to load a kiosk is of the order of three & a half minutes. Naterally the time taken to place a kiosk varies considerably with the local conditions appertaining to the site, but a normal figure would be about ten minutes. In unfavourable circumstances, e.g., on a hillside, more than two men are required to manoeuvre the laden trailer as the total weight is approximately 27 cwt.