| 摘要 |
<p>The invention relates to a mechanism where a control lever(2) and control slides (3, 4) are fitted one above the other,lever (2) passing between them and in which a double-actionhydraulic control cylinder (8) actuates, on one hand as a drive onthe slide (11) connected to the lever (2), and on the other hand -the required detaining lock (17) and the control locks (25, 25')serving as control for the position of the points, actuate slide(11) lever (2) and slides (3, 4). The detaining locks (17, 17')and the control locks (25, 25') for the respective end positionsof the points are fitted coaxially on the bearing cross-bars (20)fitted in the housing, adjustable in the direction of the controllever (2). The control lever (2) and the control slides (3, 4)have fasteners (5, 6, 7) at their ends orientated to the pointswhich can revolve at 180° and allow lefthand and righthand(anticlockwise and clockwise) assembly on the same mechanism. Theactuation is effected by a connection subject to dissociationbetween the control lever (2) and slide (11) at the surmounting ofan adjustable boundary force and by breaking the connectionbetween the control slides (3, 4) and the control locks (25, 25')caused by the movement of the control lever (2).6 claims, 2 figures</p> |
