↑"Hall of Fame: Blackpool Coronation 304". British Trams Online. http://www.britishtramsonline.co.uk/304.html. Retrieved 2007-12-04. "Blackpool Coronation 304 joins the Hall of Fame on the back of its TV stardom on Channel 4's Salvage Squad program broadcast in the UK on 17 February 2003. 304 was the first Coronation tram of the fleet and arrived in the resort on 5 June 1952 having cost £10,000 and quickly started testing before the tram was officially unveiled to the public on 16 June, 3 days after the Ministry of Transport had inspected and passed the tram for public use."
↑"Improvements in tramcars GB Patent GB442620". 1935. http://www.wikipatents.com/gb/442620.html. Retrieved 2007-12-04. "Abstract of GB442620 442,620. Tramcars; undercarriages. MALEY, A. W., 4, Grosvenor Road, Handsworth, and TAUNTON, E. M., 90, Fitz Roy Avenue, Harborne, both in Birmingham. Dec. 7, 1934, No. 35237. [Classes 103 (iv) and 103 (vi)] In a four-wheeled tram-car having a central side entrance, provision is made for accommodating a step outside the truck frame by insetting the longitudinal members of the latter at the parts 11, Fig. 1, between the axles 5. In conjunction therewith the side members 12 of the body underframe are dropped in the centre and reinforced against stresses by means of an elongated U-shaped member 13, Fig. 2, which also drops below the step and by a frame member 18 connected to the side members 12 and running behind the step. In a modification, Fig. 3, the member 13 is replaced by an angle bar 16 forming a rectangular loop that extends around the entrance and supports the step 17, truss plates 15 extending between the angle bar 16 and the longitudinals 14. The springing arrangement preferably includes leaf springs 9 and helical springs 10 interposed between the ends of the truck frame and the underframe, and helical springs 6 bearing upon spring beams 7 slung from the axleboxes 8."