Launch lever
.jpg)
The throwing lever is part of the external gate control of a steam locomotive, the most famous of which is the Heusinger control .
Application and purpose
The throwing lever is the direct connection element from the steering wheel of the steam locomotive to the slide pushrod and thus a control element for changing the filling or the direction of travel of the locomotive. The raising lever is only moved when the control handwheel is turned and can therefore be described as requiring little maintenance. However, an easy connection must be ensured for easy operation of the control handwheel.
On the sketch you can see that the control rod lever, throwing lever and hanging iron have been combined as one element. There were various forms of transmission to the slide pushrod in steam locomotive construction. The photo shows the classic shape with hanging iron . In the variant of the control with Kuhn's loop , the throwing lever reached directly into the elongated hole of the slide pushrod.
literature
- Edmund Heusinger von Waldegg: Special Railway Technology, Third Volume, Der Lokomotivbau , Leipzig 1882
