Wire break detector and point locking mechanism.
If the wire loose its tension the springs will
turn the two miniature rods enough to foul the
locking part protruding from the bottom of the
frame, and thus prevent the point from moving.
Very typical of continental wire-operated points.
Here seen in Betriebsbahnhof of the Berliner Parkeisenbahn.
Photo 19 febr 1997 by hjelme@worldonline.dk