Re: Klein Lindner Articulation System

John,
That is Sir A.P. Heywood's system of which all, I think, examples were 15" gauge. One of the originals survives, much modified, as "River Irt" on the Ravenglass & Eskdale Railway. How much remains of the 1894 "Muriel" original is open to question however.
The Klein Lindner system differs somewhat in detail. On an eight coupled locomotive under the K-L system only the outer axles are sleeved, whereas the Heywood system all axles are sleeved.
The outer axles are sleeved, and the wheels are attached to the sleeves. Additionally the sleeves are attched to "A" frames which are pivoted between the outer and inner axles. These frames are connected between the centre axles. So all axles are rigid in the frame but the sleeves (connected to the axle by a central ball joint) are free to "steer", and by connecting the outer sleeves via the "A" frame displacement of one outer axle the other will steer as well.
Hope this explanation is understandable...
G