Oscillation

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One of the claims made for the Fairlie's Patent locomotive was reduced "oscillation" whatever that is.

This claim was made in several newspaper in far off N. S. Wales, etc. [1]

Hammer blow[edit]

Steam engines have unbalanced wheels because of the driving and coupling rods. This is one kind of oscillation. Counterweights can balance out the top-down hammer blow, but this causes forward-aft jerkiness. In practice some counterwieghts are provided so that there is some hammer-blow and some jerkiness.

References[edit]

  1. ^ "THE FESTINIOG RAILWAY". The Hay Standard And Advertiser For Balranald, Wentworth, Maude.. (89). New South Wales, Australia. 16 April 1873. p. 2. Retrieved 22 April 2017 – via National Library of Australia.