Photographic apparatus support

Claim 1

A SUPPORT STRUCTURE FOR ADJUSTABLY HOLDING PHOTOGRAPHIC APPARATUS IN A SELECTED VERTICAL POSITION, SAID STRUCTURE COMPRISING, IN COMBINATION: (A) A UNITARY, ONE-PIECE SUPPORT COLUMN EXTENDING VERTICALLY FROM AN ANCHORED POSITION AT ITS LOWER END AND HAVING A SUBSTANTIALLY V-SHAPED HORIZONTAL CROSS SECTION, WHEREBY SAID COLUMN HAS A FORWARDLY DISPOSED VERTICAL EDGE AT THE VERTEX OF THE V, AND TWO REARWARDLY DISPOSED VERTICAL EDGES; (B) A MOUNTING BRACKET INCLUDING A PLATE-LIKE SECTION POSITIONED ADJACENT A PORTION OF THE FORWARDLY DISPOSED SURFACES OF SAID COLUMN, WHEREBY SAID BRACKET HAS A REARWARDLY DISPOSED SURFACE FACING SAID COLUMN AND A FORWARDLY DISPOSED SURFACE FACING AWAY FROM SAID COLUMN, AND HAVING A PAIR OF FLANGES EXTENDING REARWARDLY PAST SAID REARWARDLY DISPOSED EDGES; (C) FIRST AND SECOND WHEELS MOUNTED ONE UPON EACH OF SAID FLANGES FOR ROTATION ABOUT FIRST HORIZONTAL AXES; (D) A THIRD WHEEL MOUNTED UPON A FORWARDLY DISPOSED PORTION OF SAID MOUNTING BRACKET FOR ROTATION ABOUT A SECOND HORIZONTAL AXIS; (E) SAID SECOND AXIS BEING PARALLEL TO AND LOWER THAN SAID FIRST AXES; (F) SAID FIRST, SECOND AND THIRD WHEELS BEING IN ROLLING ENGAGEMENT WITH EACH OF SAID REARWARDLY DISPOSED EDGES AND SAID FORWARDLY DISPOSED EDGE, RESPECTIVELY, DURING VERTICAL MOVEMENT OF SAID MOUNTING BRACKET WITH RESPECT TO SAID COLUMN; AND (G) MEANS FOR RIGIDLY SECURING SAID PHOTOGRAPHIC APPARATUS TO SAID FORWARDLY DISPOSED SURFACE OF SAID MOUNTING BRACKET, TO EXTEND HORIZONTALLY THEREFROM ABOVE SAID SECOND AXIS, WHEREBY THE WEIGHT OF SAID APPARATUS EXERTS A TURNING MOVEMENT ON SAID MOUNTING BRACKET URGING SAID FIRST AND SECOND WHEELS AGAINST SAID REARWARDLY DISPOSED EDGES AND SAID THIRD WHEEL AGAINST SAID FORWARDLY DISPOSED EDGE.