"Gwen Elms" - a freelance 4-6-4

by LBSC

Technical Particulars

  • Frames 33 " overall
  • Coupled Wheels 3 9/16 " diameter
  • Four Cylinders 11/16 " bore x 1 1/8 " stroke
  • Slide valves driven by outside Walschaerts gear
  • Boiler barrel 3¼ "/3¾ " o.d., tapered, wide firebox with combustion chamber, coal fired

    • Drawings

    Seven Sheet Drawing set available from Reeves (2000), cat no 29/510.

  • sheet 1 : General arrangement of engine and tender
  • sheet 2 : Main frames, trailing cradle, axle boxes, etc.
  • sheet 3 : Leading and trailing bogie details, coupled wheels and axles, coupling rods, mechanical lubricator, steam and exhaust connections
  • sheet 4 : Cylinder and connevting rod details, backhead fittings, blower and whistle valves
  • sheet 5 : Valve gear, grate, ashpan, smokebox saddle
  • sheet 6 : Boiler details, smokebox, regulator, superheater. safety valve
  • sheet 7 : Tender details

    • Castings

  • Main Horns and Axleboxes
  • Coupled & Driving wheels
  • Bogie and leading truck wheels
  • Cylinder blocks and steamchests
  • Eccentric straps, pump bodies, etc.

    • Note : some castings are available from the Association.

    Construction Articles

    The constructional series appeared in English Mechanics between 3rd February and 6th October, 1939.
    TEE Publishing can supply a reproduction booklet of the constructional series [price was £4-25 in 2002].

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