Snowplow attachment for automobiles

Claim 1

A SNOWPLOW ATTACHABLE TO THE BUMPER OF AN AUTOMOBILE, COMPRISING AN ELONGATE SNOW-PUSHING MOLDBOARD NORMALLY EXTENDING ALONG THE GROUND IN A SUBSTANTIALLY UPRIGHT POSITION IN FRONT OF THE AUTOMOBILE, THE MOLDBOARD HAVING A GROUND-ENGAGING EDGE AND AND UPPER PORTION, A PAIR OF PARALLEL AND RIGID PLOW-PUSHING ARMS EXTENDING IN A FORWARDLY AND DOWNWARDLY INCLINED DIRECTION TOWARD THE MOLDBOARD, SAID ARMS HAVING FRONT ENDS OF SAID ENDS, MEANS REMOVABLY ATTACHING THE REAR ENDS OF THE ARMS TO AN AUTOMOBILE BUMPER, THE FRONT ENDS OF SAID ARMS BEING BAR-SHAPED AND ORIENTED IN A VERTICAL PLANE, AND SAID FRONT ENDS BEING BENT DOWNWARDLY TO DEFINE ELONGATE MOLDBOARD-ENGAGING EDGES BEARING AGAINST THE MOLDBOARD, PIVOT MEANS BELOW THE FRONT ENDS OF SAID ARMS AND ADJUSTABLY ATTACHING THE FRONT ENDS OF THE ARMS TO THE MOLDBOARD AT SPACED POSITIONS LONGITUDINALLY ALONG THE MOLDBOARD AND FOR SWINGING MOVEMENT ABOUT UPRIGHT AND SUBSTANTIALLY HORIZONTAL AXES EXTENDING GENERALLY PARALLEL TO THE MOLDBOARD WHEREBY TO PERMIT THE MOLDBOARD TO SWING DOWNWARDLY WHEN THE LOWER EDGE OF THE MOLDBOARD ENCOUNTERS AN OBSTRUCTION AND TO PERMIT THE ARMS TO BE FOLDED AGAINST THE MOLDBOARD WHEN REMOVED FROM THE AUTOMOBILE, ELONGATE SPRINGS ABOVE THE ARMS AND EXTENDING THEREALONG, SAID SPRINGS HAVING OPPOSITE ENDS ANCHORED ON THE ARMS AND ON THE UPPER PORTION OF THE MOLDBOARD RESPECTIVELY FOR RETURNING THE MOLDBOARD TO UPRIGHT POSITION AFTER HAVING BEEN SWUNG DOWNWARDLY, THE MOLDBOARD HAVING A PAIR OF RIGID PLATES THEREON AND HAVING A PLURALITY OF REARWARDLY PROJECTING RIGID ARM-GUIDING AND RETAINING LUGS IN SPACED SIDE BY SIDE RELATION WITH EACH OTHER AND AFFIXED TO SAID PLATES ADJACENT EACH OF THE ARMS AND RECEIVING SAID EDGES OF THE ARMS THEREBETWEEN TO MAINTAIN THE FRONT END OF SAID ARMS IN PREDETERMINED RELATION WITH THE MOLDBOARD AND TO CAUSE THE MOLDBOARD TO RETURN TO A PRESET POSITION EACH TIME THE MOLDBOARD IS SWUNG UPWARDLY AFTER HAVING BEEN SWUNG DOWNWARDLY BY AN OBSTRUCTION.