Model Engineer - 15 March 2019

Terence Holland makes a whistle and whistle valve for his Barclay well tank locomotives and then offers two designs for the firehole doors.
Chris Gunn discovered that a pair of water gauges for a 6 inch scale Garrett 4CD tractor costs a lot of money so he decided to make his own.
Doug Hewson makes further progress on his GWR pannier tank design by attending to the horn blocks and the springs.
Graham Sadler explains how to achieve properly ground tool bits.
Robert Hobbs completes the construction of his LMS Coronation class locomotive City of Stoke on Trent in 2½ inch gauge.
John Clarke makes a one sixth model of a framework knitting machine dating back to the 18th century and used to knit stockings, which at the time were worn by both men and women.
Martin Gearing completes his vertical boiler by adding the pressure gauge and the safety valve.
Roger Backhouse reviews Adrian Garner’s book about Austrian narrow gauge railways.
Mike Tilby considers the problem of losses in steam turbines.
John Arrowsmith looks back at two recent exhibitions; the London Model Engineering Exhibition at Alexandra Palace in January and the huge and impressive November show in Friedrichshafen, Germany.