Heart rocker: Difference between revisions
Jump to navigation
Jump to search
(Created page with "Category:Steam Locomotive Parts Alfred W. Bruce wrote in <i>The Steam Locomotive in America</i>: : The inverted-rocker device was introduced about 1914....") |
m (Dnevil moved page Heart rockers to Heart rocker: Changed plural to singular.) |
(No difference)
|
Revision as of 14:44, 31 October 2018
Alfred W. Bruce wrote in The Steam Locomotive in America:
- The inverted-rocker device was introduced about 1914. The inverted rocker was a heart-shaped rocker resting on two rolling contacts at the bottom and supporting two inclined planes at the top--one on each side of its apex center point. Thus movement in either direction produces a rolling-contact support which permits ample lateral movement with nearly any desired resistance characteristic, a quality that has retained this device in use today [approx. 1952].