Guidance device

A guidance device activated by a power source to aid an operator in the alignment of a first and a second object at least one of which is movable with respect to the other comprising:

• a flexible line connectible between desired points on said first and second objects;
• means mounted on said first object for drawing in said line as said first object moves toward said second object;
• sensing means for detecting changes in the alignment of said desired points;
• and,
• indicating means for signalling said changes to the operator whereby alignment may be determined and maintained during movement of said first object toward said second object wherein said sensing means includes:
• a frame;
• a switching element in electrical contact with one pole of the power source;
• means for pivotally mounting said element on said frame;
• and,
• at least three contact points carried by said frame and in electrical contact with the other pole of said power source;
• and, wherein said switching element includes;
• an elongated slot through which a rivet passes to guide reciprocable movement of said element on said frame;
• at least one gate extending outwardly from said element and having an aperture therein for the passage of said flexible line freely therethrough;
• and,
• a forward edge communicable with all of said contact points and terminating in a point communicable with any one of said contact points.