sentences:  Charles Burrell & Sons also added showmans fittings or forward mounted cranes to their tractors.In all 11 were sold new to amusement caterers, with at a further 5 receiving showmans fittings by external companies and 6 engines were supplied new to the War Department with a 2-ton capacity crane fitted.In 1923 road legislation was changed again, and engines up to 7 tons were allowed to be operated on the road by a single operative, in response the company designed a larger steam tractor to service this new market, but it came too late for Charles Burrell & Sons, who by this time were in financial trouble and only three of this type of engine were completed.