Kuhn slide

The Kuhnian loop is named after its inventor Michael Kuhn (1851-1903) named component of a type of Heusinger control of steam locomotives. At the same time, the term for this design, the Heusinger control.

Especially in the design of Tender and narrow gauge locomotives prepared to accommodate the Heusinger control space problems more often. The need for adjustment of the control control shaft with the throw lever was therefore mounted at the same height as the pivot point of the swingarm. It was possible to dispense with the hanging iron; said lifting lever engages directly in the slide push rod. To achieve the necessary horizontal play the back end of the slide push rod is designed as a loop ( loop Kuhn ), which is engaged in a throw lever rotatably mounted sliding. The Kuhnian loop was due to higher production costs less common than the classic hanging iron control. A peculiarity of Kuhn's loop is a uniform rock jumping in forward and reverse. For this reason she was at the tender locomotives, which had to travel long distances for operational reasons backwards, opposite the hanging iron control preferred.

A variety of Kuhn's loop developed the locomotive factory in Winterthur. The so-called Winterthur control the rocker is mounted on the control shaft itself. Rocker and camshaft have a common pivot point.

• Steam locomotive technology