As my understanding of steam engine valve gears is minimal I ought perhaps to keep my head below the parapet. I believe the correct name for this is the 'single eccentric link motion'. I imagine it is a primitive arrangement which preceeded Walschaerts' work & therefore for manufacturers to term it 'semi' or 'simplified' Walschaerts is a vanity. The waggling slotted 'banana' exists in both gears of course. Art Walker
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear ArtwalkJ98
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear Trent Dowler
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear Keith Manison
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear Keith Manison
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear Clark Lord
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear ArtwalkJ98
- Re: Bassett Lowke mogul - Semi Walschaerts Valve gear Trent Dowler