Talk:Cutoff (steam engine)

message: Moonraker88, I am sorry but you definitely have got this the wrong way round in your mind, cutoff is the percentage of the stroke at which the cutoff point occurs, and NOT the amount of the stroke left after cutoff.
I want to add some references later when I have them properly organised. Try:
* Locomotive Management, Jas T Hodgson & Chas S Lake, Tothill Press, 1954
* Locomotive Valve Gears, JH Yoder & GB Wharen, TEE publishing, a 1993 reprint of the 1921 2nd edition
* Walschaerts Valve Gear, Henry Greenly & Ernest Steel, Percival Marshal
* The Efficient Use of Steam, Lyle?
* Heat Engines, D A Low
Bill F 10:36, 11 November 2006 (UTC)
replies: text: Bill: My terminology was clumsy and misleading. You are completely correct. Old Moonraker 11:16, 11 November 2006 (UTC)
thread_title:  Terminology for cutoff 

message: To my mind the reverser, as one of the means of altering cut-off, among other things, belongs in a separate article, linked from here and from Steam locomotive nomenclature
Bill F 11:01, 11 November 2006 (UTC)
thread_title:  Reverser 

message: The recent L2 header change from "Steam reverser" was necessary, in view of recent additions, but some other changes seem wrong. For example, I don't know why Harry Wainwright chose to use the system, but it certainly wasn't because of the size of his engines: I first encountered one driving one of his H class, a 50-ton 0-4-4. We've also lost the chronology, jumping from 1882 backwards to 1876, then forwards to 1900 or so. Any suggestions? --Old Moonraker (talk) 16:23, 7 June 2010 (UTC)
replies: text: The fragments you're complaining about are from the old text, preserved unchanged through my edits.  The problem with chronology is due to the fact that the example patent (the oldest I could find) clearly documents the technology the British used, but was granted after the British pioneered the system.  If someone can find an earlier publication that is as clear as the patent I cited, feel free to use it.Douglas W. Jones (talk) 21:46, 7 June 2010 (UTC)
replies: text: I'm not complaining of the fragments: I wrote them, and I'm glad that my early contribution to Wikipedia, which leant more heavily on original research than I would now be comfortable with, has found a source in Henszey. The problem is the implication that they are for large engines ("With larger engines, the linkages involved in controlling cutoff and direction grew progressively heavier"), and the implication, from its placing in the chronology, that Henszey's patent was the progenitor. I hope these issues can be fixed. --Old Moonraker (talk) 22:09, 7 June 2010 (UTC)
replies: text: Found a ref for use in Scotland 1873 and added it. Switched the paragraphs back to chronological order. Happy now. --Old Moonraker (talk) 11:56, 30 March 2011 (UTC)
thread_title:  Power reverse gear 

message: The proposed destination article has recently been expanded (to good effect) and much of the information here is now duplicated; perhaps only a few items of terminology specific to locomotives would need to be carried over. If accepted, I suggest that the main contributor at the new article be asked to do this as well. --Old Moonraker (talk) 11:17, 30 March 2012 (UTC)
replies: text: Per the discussion, I withdraw the suggestion.--Old Moonraker (talk) 20:43, 2 April 2012 (UTC)
replies: text:  Thanks.  Now we just need someone who can write an understandable article that manages to explain expansion, cutoff, lap and lead. It's not an easy topic to do full justice to!  Andy Dingley (talk) 23:48, 2 April 2012 (UTC)
thread_title:  Merger proposal