Push-button operated device for storing a plurality of positions of a movable member

A push button controlled device for storing a plurality of positions of a movable member thereof, the position of said member controlling the variable condition of a second device mechanically connected thereto, and said positions of said movable member being preselected through said push buttons and selected by the latter when depressing the corresponding push button, said device comprising:

• a supporting plate said movable member (20) being slidingly supported on the plate and said movable member having a plurality of pairs of pins mounted thereon for enabling selection of said positions;
• a control unit (M) for manually controlling the positions of said movable member;
• a friction device allowing relative movements between said movable member and said manually operated control unit;
• and a plurality of storing and selecting units provided with said push buttons and having means for storing and selecting said positions of said movable member, said means being adapted to cooperate with said plurality of pairs of pins of said movable member.